AC 135-44 - Part 135 Operator Aircraft Configuration Inspection

U.S. Department

of Transportation

Federal Aviation

Administration

Advisory

Circular

Subject: Part 135 Operator Aircraft

Configuration Inspection

Date: 9/25/18 AC No: 135-44

Initiated by: AFS-300 Change:

1 PURPOSE OF THIS ADVISORY CIRCULAR (AC). This AC provides information

concerning the placement of aircraft into service for Title 14 of the Code of Federal

Regulations (14 CFR) part 135 commuter and on demand operations. This AC is not

mandatory and does not constitute a regulation. This AC describes an acceptable means,

but not the only means, to demonstrate the aircraft to be operated is configured to the

operational requirements of part 135. The terms “should” and “recommend” are used

when following the guidance is recommended but not required to comply with this AC.

2 AUDIENCE. This AC applies to operators who conduct part 135 commuter and

on demand operations and are seeking to add an aircraft to their Operating Certificate.

3 WHERE YOU CAN FIND THIS AC. You can find this AC on the Federal Aviation

Administration’s (FAA) website at

http://www.faa.gov/regulations_policies/advisory_circulars.

4 SCOPE. As a certificate holder or applicant for a part 135 commuter and on demand

operation, there must be an aircraft, authorized by the Administrator, attached to the

certificate. The aircraft must be in an airworthy condition and configured to meet the

operational requirements of part 135. It is the responsibility of the operator to determine

the airworthiness of the aircraft and configure the aircraft to the operational requirements

of part 135. The configuration inspection must be conducted by the operator. In the

inspection, the operator will:

4.1 Verify the aircraft is registered, the appropriate registration information is contained on

the Airworthiness Certificate, and the information on the Airworthiness Certificate and

the registration document are identical.

4.2 If the aircraft is leased, the lease must contain a provision for the sole possession, control,

and use for flight (including arrangements for performing required maintenance) to the

lessee. The certification team will review the aircraft lease to verify it contains the

appropriate requirements.

4.3 Verify the aircraft has been maintained in accordance with 14 CFR parts 21, 43, and 91.

(Refer to Section 6, Terms and Conditions, of the Airworthiness Certificate.)

9/25/18 AC 135-44

4.4 Verify the equipment authorized by the Supplemental Type Certificates (STC) has been

installed correctly, the instructions for continued airworthiness (ICA) have been complied

with, the data has been recorded per parts 43 and 91, and the data was submitted to the

FAA Aircraft Registration Branch as required by part 43 appendix B.

4.5 Verify all major repairs and alterations, including field approvals, have been performed

appropriately and the data was submitted to the FAA Aircraft Registration Branch as

required by part 43 appendix B.

4.6 Perform any modifications or alterations to the aircraft to conform it to the operating

requirements of part 135.

4.7 Establish procedures to enable the acceptance of this aircraft, and any other aircraft, into

the organization. This includes the selection of a maintenance or inspection program as

required to be entered into the maintenance records. These procedures must also be able

to capture, track, and document all required maintenance to include life-limited parts.

5 OPERATIONS SPECIFICATIONS (OPSPECS).

5.1 OpSpecs Content. Title 14 CFR part 119, § 119.49 defines the contents required in

OpSpecs. The operator is responsible for providing the details of their operation and

aircraft configuration in accordance with § 119.49 for review and authorization by the

FAA principal inspectors (PI) in the operator’s OpSpecs. The operator should contribute

the information required for the OpSpecs when the operator performs the configuration

inspection.

5.2 Web-Based Operations Safety System (WebOPSS). If authorized operator personnel

have been trained in and the PI has approved industry access to WebOPSS, the

authorized personnel can prepare the aircraft changes in the aircraft list in WebOPSS and

draft the required OpSpecs for review by the PI. If the PI authorizes the proposed

OpSpecs, he/she can then sign and issue the OpSpecs to the operator.

6 JOB AID. The job aid in Appendix A, Configuration Inspection, will assist the operator

with performing the configuration inspection required to authorize an aircraft for use on

the certificate. This procedure is also referred to as “adding an aircraft to the certificate.”

The job aid will also assist the operator with establishing a procedure to be documented

in the manual required by part 135, § 135.23(s). Although single pilot operators with

OpSpec A040, Single Pilot Operator, issued are not required to develop a manual, it is

recommended they use this AC as a guide and consider documenting a procedure.

6.1 Authorization Steps. Table 1 contains the steps to obtaining authorization for the

appropriate OpSpecs.

9/25/18 AC 135-44

Table 1. Steps to Obtain Authorization

Operator

Decide what you want to do with the aircraft and where you want to do it,

and how you will maintain and inspect the aircraft. See Appendix C,

Checklist for Operations Specifications, which describes most of the

available options. Request guidance from the PIs as needed.

Operator

Confirm that the aircraft, crew, and company procedures will meet the

specific requirements related to what you want to do. Refer to the applicable

sections of 14 CFR parts 43, 91, and 135, and the OpSpecs in WebOPSS.

Operator

Perform the configuration inspection. See Appendix A.

Operator

Send a letter to the responsible Flight Standards District Office (FSDO)

requesting all of the following (see the sample letter in Appendix B):

• To add the aircraft to WebOPSS,

• To authorize each kind and area of operation you want, and

• To authorize the maintenance and/or inspection programs you want.

Attach any revisions to your manual, to include training programs,

operating procedures, Minimum Equipment List (MEL), and maintenance

and/or inspection programs as needed to support what you want.

Operator

Describe the aircraft configuration and any airworthiness limitations using

the worksheets and checklists in Appendix A, Section 1 and Section 2.

Include attachments Section 3 and Section 4 to show compliance with the

requirements. Provide copies of all documents that support compliance as

confirmed in step two above.

Operator/

Administrator

Receive validation, acceptance, and approval: Receive approval from the

PIs for the documents or revisions that require specific approval. All other

documents must be acceptable to the FAA before OpSpecs can be issued. If

necessary, the FAA may require your demonstration of aircraft compliance,

pilot proficiency, validation of operations procedures, training program, and

maintenance and/or inspection programs. Be sure to allow time for this

process.

Operator

Certificate of Public Convenience and Necessity (CPCN) under 14 CFR

part 204 from the Office of the Secretary of Transportation (OST) as a

commuters air carrier or be registered with OST as an air taxi operator

under 14 CFR part 298 (using OST Form 4507). All aircraft must also have

and maintain aircraft accident liability insurance coverage on file with OST

according to 14 CFR part 205 (using OST Form 6410). The required OST

Forms 4507 and 6410 can be obtained at https://www.faa.gov/about/office_

org/headquarters_offices/avs/offices/afx/afs/afs200/afs260/exemptions/.

The PIs must verify that any aircraft being added to a part 135 certificate is

properly registered and has aircraft insurance on file with OST before the

aircraft can be authorized via the OpSpecs.

9/25/18 AC 135-44

Operator/

Administrator

Using the information proved by the operator, the OpSpecs will be revised

as needed. The aircraft make, model, and series (M/M/S) will be authorized

by OpSpec A003, Aircraft Authorization, and the specific aircraft will be

authorized by registration number in OpSpec D085, Aircraft Listing. Any

other requested areas of operation will be authorized by the appropriate

OpSpecs.

6.2 Documents. Gather the following documents.

1. Copy of Aircraft Records. These can be obtained from the Aircraft

Certification Branch. They can be requested via the Internet (there is a fee) at

http://www.faa.gov/licenses_certificates/aircraft_certification/aircraft_registry

/copies_aircraft_records/.

2. Type Certificate Data Sheet (TCDS). This can be downloaded and printed

from http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/

Frameset?OpenPage.

3. Copy of FAA Registry Aircraft Inquiry. This can be obtained from

http://registry.faa.gov/aircraftinquiry/.

7 AC FEEDBACK FORM. For your convenience, the AC Feedback Form is the last

page of this AC. Note any deficiencies found, clarifications needed, or suggested

improvements regarding the contents of this AC on the Feedback Form.

Rick Domingo

Executive Director, Flight Standards Service

9/25/18 AC 135-44

Appendix A

A-1

APPENDIX A. CONFIGURATION INSPECTION

SECTION 1 AIRCRAFT & OPERATOR INFORMATION

Check if this is an

UPDATE/REVISION

1.1

OPERATOR

AND AIRCRAFT

INFORMATION

Operator’s

Legal Name

Operator’s

Certificate

Number

Registered Owner

Enter exactly as shown on

the registration certificate

(see NOTE below)

Address

City/State/Zip

Aircraft Make Complete Model & Series Number Serial No Registration Number

Date of Manufacture or Construction (from the data plate if available) or

Date of Original Airworthiness Certificate (Maintenance Record Entry)

Airport Designator

Configuration

Check One

Passenger Seats Class of Operation Condition

Ops Base

All Cargo

Certificated

SEL

MEL

IFR

Maint. Base

(Records)

Combi

SES

MES

IFR/VFR

Passenger

Installed

SEL/SES

MEL/MES

Day/Night

PAX & Cargo

Amphibian

Rotorcraft

Day Only

NOTE: The registered aircraft owner(s) legal name must be identical to the certificate holder’s legal name or you must provide a copy of a lease

or other agreement that shows how the air carrier will control the operation and maintenance of the aircraft.

See FAA Guidance on Leases

1.2

SCHEDULE OF

EVENTS

If an event or

item is

applicable,

please enter

your estimated

date, otherwise

leave blank.

Certification Phase 3—DOCUMENT COMPLIANCE

Certification Phase 4—DEMONSTRATION & INSPECTION

(All documents must be approved or

found acceptable before this phase)

Event

Planned

Submission

Date

Event

Planned

Date(s)

Deviation Request

(For Proving Test Flights)

Pilot Training

Pilot Training Program/Revision Flight Attendant Training (As Required)

Flight Attendant Training Program/Revision

(As Required)

Maintenance Training

[10-or More 135.411(a)(2)]

Maintenance Training Program

[10-or More 135.411(a)(2)]

FAA Verification of Operator’s

Conformity Inspection

(The aircraft must be ready for operations in

accordance with part 135)

Plan for Proving Test or Validation Proving Test Flights

Final Compliance Statement Pilot Testing and Checking

Economic Authority, any changes to air taxi

aircraft registration and insurance require using

OST Forms 4507 and 6410, respectively

(refer to AC 135-44, Table 1, step 7)

Flight Attendant Testing

Validation Test Flights

Other:

PHASE 5 FAA CERTIFICATION and/or OPSPECS

PROPOSED COMPLETION DATE

1.3

CONTACT

INFORMATION

Name

Phone

Fax

Director of

Maintenance

Director of

Operations

9/25/18 AC 135-44

Appendix A

A-2

SECTION 2

AIRWORTHINESS LIMITATIONS FOR OPERATIONS SPECIFICATIONS

PART D FOR THIS AIRCRAFT

NOTE: This information is for aircraft maintenance and airworthiness part D operations specifications.

Part numbers and document numbers must be complete and accurate.

2.1

ADDITIONAL

REQUIRED AIRCRAFT

INFORMATION

For Operations Under

§ 135.411(a)(1) Only

Refer to AC 135-7

(as revised) for Guidance

AIRCRAFT:

Enter the aircraft

manufacturer’s

maintenance document

identification number

or part number here:

Aircraft

Maintenance

Manual

Read Note 1

Revision Level

Date

Item Make & Model

Maintenance/Overhaul

Document ID or

Part Number

Read Note 1

Time-In-Service

Document ID or

Part Number

Read Note 2

Time-In-

Service

Interval

ENGINE

(Left or Single Engine)

ENGINE

(Right if applicable)

PROPELLER/ROTOR

(Left or Single Engine)

PROPELLER/ROTOR

(Right if applicable)

PROPELLER GOVERNOR

(Left or Single Engine)

PROPELLER GOVERNOR

(Right if applicable)

PRIMARY GOVERNOR

OVERSPEED GOVERNOR

NOTE 1 Please enter the exact name, identification or part number, revision level, and date of the publication(s) under which the item will be

maintained (normally these are the airframe and the engine, propeller, and governor service manuals).

Include a copy of the front page of each maintenance document and copies of relevant supporting records.

NOTE 2 Please identify the manufacturer's publication(s) by exact number and title that specify the overhaul/replacement time, or time-in-service

interval for the item. (This information is often located in a service bulletin.)

Include a copy of the front page of each maintenance document and copies of relevant supporting records.

2.2

MAINTENANCE &

INSPECTION HISTORY

Parts

43 & 91

Before this application, the aircraft was maintained and inspected under the following maintenance

and/or inspection programs: (Please check)

Annual Inspections, 91.409(a)

Progressive Inspections, 91.409(d)

100-Hour Inspections, 91.409(b)

Last 91.411 and 91.413 Inspection

CAMP/CAIP [121 or 135.411(a)(2)], 91.409(f)(1)

AAIP Under 135.419 and 91.409(c)(2) or (f)(2)

Manufacturer’s Program, 91.409(f)(3)

Other Approved Program, 91.409(f)(4)

9/25/18 AC 135-44

Appendix A

A-3

2.3

INTENDED (NEW)

MAINTENANCE &

INSPECTION

PROGRAM UNDER

PART 135

135.411

Under our air carrier certificate, the aircraft will be inspected and maintained as indicated

below:

§ 135 411(a)(1) Maintained according to parts 43 and 91 and inspected under (select one):

Annual inspections and 100-hour inspections under § 91.409(a) and (b)

Progressive inspections under § 91.409(d)

Approved Aircraft Inspection Program (AAIP) under § 135.419 and § 91.409(c)(2) or (f)(2)

Current inspection program recommended by the manufacturer under § 91.409(f)(3)

§ 135.411(a)(2)

Inspected and maintained according to a Continuous Airworthiness Maintenance Program

(CAMP) under § 91.409(f)(1) and §§ 135.427 through 135.443 (required for 10-or-more pax

aircraft, optional for others)

2.4

ANTICIPATED

AIRCRAFT USE

ESTIMATED TOTAL (Parts 91 and 135) TAKEOFFS PER MONTH

ESTIMATED TOTAL (Parts 91 and 135) FLIGHT HOURS PER MONTH

2.5 EMERGENCY EQUIPMENT [135.421]

Refer to AC 135-7 (as revised) for guidance.

A/C Make/Model

Registration N

Item Part Number

Description or

Part Name

Manufacturer’s

Maintenance Document

Life Limits or

Inspection Intervals

Portable Breathing

Equip (PBE)

Smoke-Masks/

Goggles/Hoods

Eng Fire Ext

Eng Fire Ext Squibs

N2 Blow-Down Bottles

Squib for N2 Bottle

Portable O2 Equipment

Crew O2 Masks

Pax O2 Masks

O2 Cylinder

O2 Pressure

Regulators

O2 Generators

Emergency Power

Supplies, List Each

List any Other Emergency Equipment not listed on this page on another sheet.

Part Number

Description or

Part Name

Manufacturer’s

Maintenance Document

Life Limits or

Inspection Intervals

135.155 PORTABLE FIRE EXTINGUISHERS

Make/Model

Aircraft Location

91.205(b)(12) FOR OPERATIONS BEYOND POWER-OFF GLIDING DISTANCE FROM SHORE

Approved Personal Floatation Gear (required)

Number Installed:

One for each seat

Pyrotechnic Signaling Device (required)

9/25/18 AC 135-44

Appendix A

A-4

135.167 FOR EXTENDED OVERWATER OPERATIONS

(a) The following are conspicuously marked and easily accessible to the occupants if ditching occurs:

Note: Floatation gear that meets § 91.205(b)(12) might not meet § 135.167.

Life preserver w/light for each

occupant

Make/Model

Liferafts equipped as specified

in § 135.167(b) & (c)

Make/Model

91.207 Automatic Type (AF or AP) Emergency Locator Transmitter—(Not S-Survival Type for Liferafts)

Make/Model

TSO-C91

TSO-C91a

TSO-C126

2.6 MAJOR ALTERATIONS

91.417(a)(2)(vi) LIST ALL MAJOR ALTERATIONS THAT CURRENTLY APPLY TO THE AIRCRAFT:

(Remember to evaluate the impact of a major alteration and/or STC on MEL procedures.)

DATE

337 block 7

Instructions For Continued Airworthiness (ICA)

Scheduled

Inspection

or Maint.*

Condition

STC or Field Approval

In Block 3

(Yes or No)

Flight Manual Supplement

Required

(Yes or No)

Impact to Pilot’s Checklist

(Yes or No)

Brief Description of the Major Alteration

*ICA items requiring periodic inspection or maintenance must be tracked by the operator.

Use additional copies of this page as needed.

2.7 REQUIRED MAINTENANCE & INSPECTION DATA

YOU MUST PROVIDE THE FOLLOWING INFORMATION (any convenient format; current paper or computer tracking

records may be acceptable if they provide the information indicated below). Refer to § 91.417(a)(2). Some of this is

information similar to that required by § 135.71 and for which you should already have a form.

(i) The total time in service of

The Airframe: L Engine: R Engine:

Each Propeller:

Each Rotor:

(ii) The current status of life-limited parts of each airframe, engine, propeller, rotor, and appliance. (attachment)

(iii) The time since last overhaul of all items installed on the aircraft which are required to be overhauled on a specified time basis.

NOTE: This includes all items that are required to be overhauled by the manufacturer of the item. (attachment)

(iv) The current inspection status of the aircraft, including the time since the last inspection required by the inspection program under

which the aircraft and its appliances are maintained. NOTE: This includes all appliances that require inspection. (attachment)

(v) The current status of applicable airworthiness directives (AD) including, for each, the method of compliance, the AD number, and

revision date. If the AD involves recurring action, the time and date when the next action is required.

The listing must comply with § 91.417(a)(2)(v). (attachment)

135.105 Autopilot or IFCS

Below list only components having life-limit or periodic inspection

requirements.

Make & Model:

Autopilot Component Part Number

Description or Part Name

Manufacturer’s Maintenance Document

Life Limits or Inspection Intervals

Autopilot is capable of operating the aircraft controls to maintain flight and maneuver it about the three axes.

9/25/18 AC 135-44

Appendix A

A-5

SECTION 3 AIRCRAFT COMPLIANCE STATEMENT FOR PART 135 OPERATIONS

3.1 ALL AIRCRAFT

A/C Make/Model

Registration N

INSTRUCTIONS FOR SECTION 3:

• Please refer to part 135 subpart C, Aircraft and Equipment, and part 91 as applicable, for the specific requirements of the

items listed below.

• Check the box



next to the item to indicate that it meets the requirements of the rule.

• Provide all additional information indicated.

135.143

General requirements

(a) For each item marked



or recorded in any field, the applicant certifies that the equipment meets the applicable Federal

aviation regulations. Indicate items that do not apply by “NA.”

(b) All required instruments and equipment not originally installed by the aircraft manufacturer are approved as shown by FAA

Form(s) 337 which are listed in Section 2.6 of this document and are available for inspection by the FSDO, and are in

operable condition. (Revised text to conform to the rule.)

135.143(c)

ATC transponders*

Mode S

If not Mode S,

Date Installed *

ATC

Transponder Make & Model

Yes No

*NOTE: For part 135 operations, ATC transponders installed after January 1, 1992, must be Mode S.

*Warning: Be aware that by January 1, 2020, you must be equipped with ADS-B Out to fly in most controlled airspace.

Federal regulations §§ 91.225 and 91.227 contain the details.

135.144

Portable electronic devices

Attach a list of all portable electronic devices intended to be used by the flightcrew or enter “none”: .

Results of interference testing for PED used by crew and passengers.

135.147

Dual controls are installed

135.149

Equipment requirements: General

(a) Altimeter(s): Sensitive & adjustable for barometric pressure

(b) Carburetor: Heat/deice or

Pressure carburetor: Alternate air source

135.156

Flight data recorders: Filtered data

135.157

Oxygen equipment: Meets all requirements

See Section 2.5 if this box is checked.

135.159

Passenger carrying under VFR at night or VFR over-the-top conditions

(a) Gyroscopic rate-of-turn indicator

(b) Slip skid indicator

(d) Gyroscopic direction indicator

(e) Generators meeting FAR specifications

(f) For night flight authorization:

Anti-collision light system

Instrument lights

2 "D-Cell” flashlight or equivalent

135.160

Radio altimeter or deviation for rotorcraft

135.161

VFR communication and navigation equipment for navigation by pilotage

See the tables under § 135.165 (next page) for equipment information.

135.163

Passenger carrying under IFR

(a) Vertical speed indicator

(b) Free air temperature indicator

(d) Gyroscopic power source indicator or

power failure warning indicator

(e) Alternate static source

(f) Single-engine aircraft

(Generator/load combination as specified)

(g) Multiengine aircraft:

(Two generators loaded as specified)

(h) Two independent sources of energy as specified to

power gyroscopic instruments

135.181

Performance requirements: Aircraft operated over-the-top or in IFR conditions

135.183

Performance requirements: Land aircraft operated over water

135.185

Empty weight and center of gravity: Currency requirement

For multiengine aircraft: Date Last Weighed:

135.605

Helicopter Terrain Awareness and Warning System (HTAWS)

135.607

Flight data monitoring system

9/25/18 AC 135-44

Appendix A

A-6

3.1 ALL AIRCRAFT (continued)

A/C Make/Model

Registration N

135.165 Communication and Navigation Equipment: Extended Overwater or IFR Carrying Operations

Navigation Equipment Installed

Make/Model

Date

Installed

Make/Model

Date

Installed

VOR 1

VOR 2

DME 1 DME 2

ADF 1 ADF 2

ILS Receiver Marker Beacon

GPS Equipment

installed

Misc. Equipment

Installed

* Indicates FM Immunity for European Operations

Make/Model

Indicate All Sensors

Approved For

Date

Installed

Flight Management System or

NAV Management System

GPS TSO # & Class

INS/IRS

Other

Short-Range RNAV

VOR/DME or

DME/DME-FMS

WAAS

Nonprecision Approaches

Remote/Oceanic

RNP Type(s) Time Limits

BRNAV PRNAV

VNAV En Route/Terminal ONLY

Date

Installed

Flight Management System or

NAV Management System

GPS TSO # & Class

INS/IRS

Other

Short-Range RNAV

VOR/DME or

DME/DME-FMS

WAAS

Nonprecision Approaches

Remote/Oceanic

RNP Type(s) Time Limits

BRNAV PRNAV

VNAV En Route/Terminal ONLY

If a third navigation system is installed, please attach the information indicated above for that system.

Installed Equipment and Systems

Two microphones Two headsets (with boom mic required if CVR is installed) or

One headset and one speaker

Make/Model

Date

Installed

Make/Model

Date

Installed

VHF COM 1

8.33 KHz Spacing*

VHF COM 2

8.33 KHz Spacing*

VHF COM 3

8.33 KHz Spacing*

UHF COM 1

UHF COM 2 HF COM 1

HF COM 2 SATCOM

ADS-B ADS-C

Data Link OTHER

*Required for certain operations outside the U.S.

NOTICE: TO AVOID DELAYS IN APPROVAL, provide the following for each navigation or

communication system listed above: (Electronic copies in PDF format are acceptable.)

Copies of the installation approval documents (original/updated equipment list or FAA Form 337) and

Flight manual sections or supplements that show approval of the aircraft and equipment for the

requested operations. Contact the FSDO if there are any questions.

9/25/18 AC 135-44

Appendix A

A-7

PLEASE COMPLETE THIS PAGE ONLY IF APPLICABLE

3.2 TURBINE-POWERED, TURBOJET, AND/OR TEN-OR-MORE

PASSENGER AIRCRAFT

A/C Make/Model

Registration N

Proving Test

Flights

135.145

NOT REQUIRED REQUIRED

Proving test plan is scheduled on page A-1

Proving tests are scheduled on page A-1

Request for deviation is scheduled on page A-1

Additional

Equipment

Requirements

135.150

Public address and crewmember interphone systems

Make/Model/Series

Date Installed

135.151

Cockpit Voice Recorders

135.151(d)

Dual Headsets with Boom Mics

135.152

Flight Data Recorders

135.154

Terrain Awareness and

Warning System (TAWS)

Class A

Class B

Warning: Ensure all TAWS functions are active. If any are deactivated, the system no longer meets TSO-C151( ).

135.158

Pitot heat indication systems

Additional

Airworthiness

Requirements

135.169

(a) For all large airplanes (more than 12,500 pounds, maximum certificated takeoff weight):

The aircraft:

Is a commuter category airplane, or

Meets the additional requirements of §§ 121.215 through 121.283, and 121.307.

(b) For Reciprocating-engine airplanes configured for ten-or-more passengers or

For Turbopropeller-powered Small Airplanes configured for ten-or-more passengers:

Meets all applicable conditions specified in § 135.169(b).

state the maximum passenger seating configuration

(d) Cargo or baggage compartments: All transport category airplanes type certificated

after January 1, 1958.

Each Class C or D cargo compartments is not greater than 200 cubic ft in volume, or

Meets all applicable conditions specified in § 135.169(d).

135.170

Materials for compartment interiors

135.171

Shoulder harness installation at flight crewmember stations

Make/Model/Series

Date Installed

135.173

Airborne thunderstorm

detection equipment

requirements

135.175

Airborne weather radar

equipment requirements

135.177

Emergency equipment requirements for aircraft having

a passenger seating configuration of more than 19 passengers

135.180

Traffic Alert and Collision

Avoidance System (TCAS)

TCAS I

TCAS II

TCAS II software version 7 or higher?

Yes

RVSM

Requirements

91.180

Aircraft was built to RVSM requirements as shown in the type certificate.

Aircraft was modified to RVSM requirements under

Service Bulletin or STC on (date)

A copy of the maintenance sign-off is included with this conformity statement.

9/25/18 AC 135-44

Appendix A

A-8

SECTION 4 PART 135 AIRWORTHINESS CHECKLIST

It is highly recommended you use this checklist frequently and especially before presenting the aircraft to the FAA for

inspection or before an FAA check ride.

A/C Make and Model

Registration N

INSPECTION ITEMS



Check if the item meets all applicable FAR Requirements

CERTIFICATES AND REGISTRATION

The Registration Certificate is on board and current.

The Airworthiness Certificate is on board and current.

The Radio Station License is on board and current

(optional).

OPERATING LIMITATIONS

FAA-approved Aircraft Flight Manual (AFM) or Pilot’s

Operating Handbook is current, complete, and in

serviceable condition.

AFM contains Flight Manual Supplements (AFMS) that

are current and applicable to the installed autopilot/flight

director, navigation equipment, and other installed

equipment to which an AFMS applies. AFMSs that do not

apply to the aircraft are stowed to prevent their use.

All required placards are secure and readable.

The flight deck contains all operating manuals and/or

placards required by the AFM and AFMSs, type certificate

(TC), STC, or FAA Forms 337.

All switches, circuit breakers, controls, etc., are properly

labeled.

AFM contains current weight and balance data, and all

obsolete weight and balance data is superseded; or, for

aircraft not requiring an AFM, the current weight and

balance and equipment list is in the aircraft.

AFM contains a current and complete equipment list.

For multiengine aircraft, the AFM contains a weighing

record showing the aircraft was weighed within the last

three years. The record includes an equipment list,

which describes the approved aircraft configuration at the

time of weighing. The weighing record has the signature

and certificate number of the person or agency doing the

work and the date of completion.

AIR CARRIER OPERATIONS DOCUMENTS

Aircraft Maintenance Log (§ 135.65) is on board and

contains no open mechanical irregularities.

The document provided for compliance with § 135.71 is

on board and current.

Minimum Equipment List (MEL) is on board and current,

if applicable.

Air Carrier Operations Manual (or applicable parts) is

on board and current.

Deferred Maintenance Log contains no items deferred

beyond the time allowed in the MEL.

The operator’s name or certificate number is displayed and

readable from the ground as required by § 119.9.

PASSENGER SAFETY

All internal cabin placards required by the TC or the AFM

are secure and readable.

Passenger briefing cards meet part 135 requirements.

(Refer to AC 121-24 for more information regarding the

Passenger Safety Information Briefing and Briefing Cards.)

Required emergency equipment is on board, properly

stowed, and inspected. (See Section 2.6.)

Approved cargo restraints are in place.

GENERAL AIRWORTHINESS

The aircraft has the proper equipment and approval

documentation required by part 135 subpart C.

All external placards, required by the TC or the AFM, are

secure and readable.

All cowl fasteners, screws, etc., are secure.

Antennas are free from erosion.

ADF/HF long-wire antenna is under spring tension.

All static wicks are installed; none are broken except as

deferred under an MEL. No broken bonding straps.

The aircraft make, model and serial number data are on

the outside of the fuselage.

All instruments, systems, and equipment are operating

properly or deferred under an MEL; the aircraft is

airworthy and legal to fly.

MAINTENANCE RECORDS

The maintenance records show that all airworthiness

inspections are current, including annual/100-hr or

scheduled inspection, altimeter, encoder, static system,

ATC transponder, etc.

All required maintenance, including maintenance of

life-limited items, is current.

Review and verify the TCDS and any STC for items that

affect operations and maintenance (e.g., electronic system

security special conditions).

The maintenance records include an Airworthiness

Directive (AD) listing showing that all ADs are complied

with, including recurring ADs. The listing must comply

with § 91.417(a)(2)(v).

I certify that, to the best of my knowledge, the information contained in this report is complete and accurate.

Signature

(or other qualified title)

Certificate Number

Date

Director of Maintenance

9/25/18 AC 135-44

Appendix B

B-1

APPENDIX B. SAMPLE LETTER

[EXAMPLE: INSERT COMPANY LETTERHEAD, NAME AND ADDRESS]

[Insert Date]

[Mr./Ms.] [Insert Name]

Principal Maintenance Inspector

Federal Aviation Administration

Flight Standards District Office

1234 Anywhere St., Suite 100

City, State 12345-6789

Dear [Mr./Ms.] [Insert last name of the principal maintenance inspector]:

This is to apply for amended operations specification (OpSpec) paragraph D085 [if new

make/model aircraft, insert “and A003”, else hit delete] to add [insert the aircraft make, model,

series] registration number [insert the registration number including N] to our air carrier

operation. Please see the following attachments for details of this application.

Attachment Section 1 provides:

• Additional information about the aircraft.

• Our Schedule of Events for the activities needed to add the aircraft to our fleet.

• Names and contact information for personnel assigned to this project.

Attachment Section 2: Airworthiness Limitations Information for Operations Specifications

Part D.

Documents for Approval: We include the documents checked below for your review and

approval.

Checklist for Operations Specifications: A004 is included to show OpSpec paragraphs to

add or that need revision for operations with this aircraft. We attached information that

shows the aircraft is equipped and approved for each requested operation. We developed

or are developing the written procedures and training programs related to those

operations. The Schedule of Events in Section 1 includes dates for completion of the

documents and for training and demonstrations of proficiency where required.

Minimum Equipment List (MEL) (mandatory attachment if you will use an MEL).

Approved Aircraft Inspection Program (AAIP). (The AAIP is an optional program to be

developed by the operator. It is a mandatory attachment if determined to be used.)

Continuous Airworthiness Maintenance Program (CAMP) (mandatory attachment for

10-or-more-passenger aircraft operations; optional for all other aircraft).

Reduced Vertical Separation Minimum (RVSM) Operations and Training Programs

(mandatory attachment(s) for aircraft operated between FL290 and FL410 inclusive;

refer to § 91.180 and AC 91-85).

Procedures to conduct a pretakeoff contamination check during ground icing conditions

(refer to AC 135-16). (If not included, OpSpec A041 may be delayed.)

9/25/18 AC 135-44

Appendix B

B-2

Deviation request (mandatory attachment if a deviation is required; e.g., reduction in

proving test flight time).

Training program revision (mandatory if any training is required to add the aircraft or

operation).

Documents for Acceptance: We include the documents checked below for your review and

acceptance.

Aircraft Lease (mandatory attachment if the air carrier is not the legal owner of the

aircraft; refer to § 135.25(b) and the above link to lease guidance).

Revision to the Operations Manual (mandatory for any change to the MEL or other

part 135 operations document).

Attachment Section 3: Aircraft Compliance Statement and supporting documents.

Attachment Section 4: Airworthiness Checklist and inspection statement showing the

aircraft is ready for operations under part 135.

Proof of DOT Economic Registration (mandatory attachment for first aircraft; provide

within 30 days after adding any additional aircraft).

The data required by Section 2.7, Required Maintenance & Inspection Data.

Please contact the persons indicated in Attachment Section 1 for any questions concerning this

application. Please let us know immediately if you are not able to accommodate our schedule of

events.

Sincerely,

[Insert name and title]

Attachments

9/25/18 AC 135-44

Appendix C

C-1

APPENDIX C. CHECKLIST FOR OPERATIONS SPECIFICATIONS

Use the information provided below to prepare the required procedures for operations,

maintenance, and training, as applicable. Use this information to prepare for validation and

proficiency checks that may be required. Contact your principal inspector (PI) for information as

needed.

Note: If adding an aircraft, please only check paragraphs that are new or

that require revision related to the aircraft you want to add.

Part

Purpose

005

Conduct operations under certain exemptions and/or deviations.

011

Use an approved carry-on baggage program.

A 013

Conduct extended overwater turbojet operations without required emergency

equipment.

A 014

Conduct special en route instrument flight rules (IFR) operations in Class G

airspace.

015

Use an autopilot in lieu of a second-in-command.

017

Use an approved security program in helicopter operations.

018

Conduct scheduled passenger helicopter operations.

019

Use automotive gasoline as aircraft fuel.

020

Conduct 14 CFR part 135 airplane operations without instrument-rated pilots.

A 021

Conduct helicopter emergency medical services/air ambulance operations in

accordance with part 135.

022

Use an approved exit row seat program.

A 023

Determine ground icing conditions for the purpose of flight (using an

approved deicing/anti-icing procedure in accordance with part 135,

§ 135.227(b)(3)).

024

Conduct airplane air ambulance operations under part 135.

A 025

Use the electronic signatures, electronic recordkeeping systems, or electronic

manual system listed in A025.

A 027

Conduct land-and-hold-short operations (LAHSO) at designated airports and

specified runway configurations as identified by Air Traffic Services (ATS)

Order JO 7110.118.

028

Conduct aircraft wet lease arrangements.

029

Use an aircraft interchange agreement under 14 CFR part 119, § 119.49.

A 031

Make arrangements with training centers and other organizations for

certificate holder training in accordance with § 135.324.

A 032

Adopt flightcrew member flight time limitations rules to establish flight

attendant duty and flight time limitations and rest restrictions.

9/25/18 AC 135-44

Appendix C

C-2

Part

Purpose

A 033

Conduct certain part 135 operations in accordance with flight and rest time

limitations under §§ 135.261 through 135.273.

A 034

Conduct operations using an approved Advanced Qualification Program

(AQP) in accordance with 14 CFR part 121 subpart Y, §§ 121.901 through

121.925.

A 037

Conduct commuter and on-demand operations as a basic part 135 operator in

accordance with the deviation provisions of §§ 135.21(a) and 135.341(a).

A 038

Conduct on-demand operations as a basic part 135 operator in accordance

with the deviation provisions of §§ 119.69(b), 135.21(a), and 135.341(a).

A 039

Conduct single pilot-in-command operations as a part 135 operator in

accordance with the deviation provisions of §§ 119.69(b), 135.21(a), and

135.341(a).

040

Conduct operations as a single pilot operator.

A 041

Conduct a pretakeoff contamination check during ground icing conditions for

part 135 operators.

042

Conduct part 135 aircraft operations without a deicing/anti-icing procedure.

A 046

Conduct single-engine IFR (SEIFR) passenger-carrying operations under

part 135.

050

Conduct Helicopter Night Vision Goggle Operations (HNVGO).

A 051

Conduct en route Airplane Night Vision Goggle Operations (ANVGO) and

any additional authorized ANVGO in accordance with part 135 and the

limitations and provisions of Operations Specification (OpSpec) A051.

A 055

Accept, handle, and carry materials regulated as hazardous materials

(hazmat).

056

Conduct data link communications.

A 057

Conduct “eligible on-demand operations” as defined in and in accordance

with § 135.4.

A 061

Use an Electronic Flight Bag (EFB) in the aircraft as part of an authorized

EFB Program.

A 096

Use only actual passenger and baggage weights (no combinations of average

and actual weights) for all its aircraft.

A 097

Use any combination of actual, standard average (or segmented), or

survey-derived average weights in its small cabin aircraft passenger and

baggage weight program.

A 098

Use any combination of actual, standard average (or segmented), or

survey-derived average weights for its medium cabin aircraft.

A 099

Use any combination of actual, standard average (or segmented), or

survey-derived average weights for its large cabin aircraft.

A 153

Conduct Automatic Dependent Surveillance–Broadcast (ADS-B) Out

operations outside of U.S.-designated airspace.

9/25/18 AC 135-44

Appendix C

C-3

Part

Purpose

A 160

Conduct part 135 rotorcraft operations without the radio altimeter equipment

required by § 135.160(a), under a deviation as provided in § 135.160(b) and

in accordance with the limitations and provisions of Letter of Deviation

Authority (LODA) A160.

A 304

Conduct the Airline Transport Pilot (ATP) Certification Training Program

(CTP), required by 14 CFR part 61, § 61.156 for all ATP applicants, subject

to the conditions and limitations in OpSpec A304.

A 323

Conduct airplane operations using a Liquid Water Equivalent System

(LWES).

A 348

Allow persons eligible under § 121.547(a)(3) access to the flightdeck using

the Continuing Analysis and Surveillance System (CASS) program and/or the

Flight Deck Access Restriction (FDAR) program in accordance with the

limitations and provisions of A348.

355

Use ADS-B In equipment and procedure(s) as specified in A355.

501

Suspend its liability insurance due to seasonal operations.

502

Use the air carrier merger and/or acquisition plan.

A 504

Conduct the ATP CTP, required by § 61.156 for all ATP applicants, subject to

the conditions and limitations in OpSpec A504.

519

Conduct operations into the Democratic People’s Republic of Korea (DPRK).

A 529

Conduct emergency operations to support a temporary regional disaster

recovery.

A 532

Conduct flight operations in accordance with Special Federal Aviation

Regulations (SFAR) 112 (14 CFR part 91, § 91.1603) in the Tripoli (HLLL)

flight information region (FIR) under a contract or subcontract, grant, or

cooperative agreement with the sponsoring U.S. Government Entity.

A 533

Conduct flight operations in accordance with SFAR 107 (14 CFR part 91,

§ 91.1613) in the territory and airspace of Somalia at altitudes below FL260

under a contract or subcontract, grant, or cooperative agreement with the

sponsoring U.S. Government Entity.

A 535

Conduct flight operations in accordance with SFAR 114 (14 CFR part 91,

§ 91.1609) in the Damascus (OSTT) FIR under a contract or subcontract,

grant, or cooperative agreement with the sponsoring U.S. Government Entity.

A 536

Conduct flight operations in accordance with SFAR 115 (14 CFR part 91,

§ 91.1611) in the specified areas of the Sanaa (OYSC) FIR under a contract or

subcontract, grant, or cooperative agreement with the sponsoring

U.S. Government Entity.

A 999

Issue an International Civil Aviation Organization (ICAO) Air Operator

Certificate (AOC) through the Web-based Operations Safety System

(WebOPSS).

029

Conduct operations using approved driftdown or fuel dumping procedures.

9/25/18 AC 135-44

Appendix C

C-4

Part

Purpose

B 030

Conduct IFR en route Area Navigation (RNAV) operations in the State of

Alaska using Technical Standard Order (TSO)-C145( )/C146( ) Global

Positioning System (GPS)/Wide Area Augmentation System (WAAS) RNAV

systems as the only means of IFR navigation in accordance with SFAR 97.

032

Conduct IFR en route operations.

034

Conduct Class I navigation using an area navigation system.

B 035

Conduct Class I navigation in the U.S. Class A airspace using an area or

long-range navigation system.

B 036

Conduct oceanic and remote continental navigation using multiple long-range

navigation systems (M-LRNS).

037

Conduct operations in Central East Pacific (CEP) airspace.

038

Conduct operations in North Pacific (NOPAC) airspace.

039

Conduct operations in North Atlantic High Level Airspace (NAT HLA).

040

Conduct operations in areas of magnetic unreliability.

B 045

Conduct extended overwater operations using a single long-range

communication system (SLRCS).

B 046

Conduct operations in Reduced Vertical Separation Minimum (RVSM)

airspace.

B 048

Conduct air tour operations below an altitude of 1,500 feet above ground level

(AGL) in the State of Hawaii.

B 049

Conduct operations in the Grand Canyon National Park Special Flight Rules

Area (GCNP-SFRA).

B 054

Conduct oceanic and remote airspace navigation using a single long-range

navigation system (S-LRNS).

B 057

Conduct commercial air tour operations over certain national park(s) and

tribal lands within or abutting those national park(s).

B 059

Conduct operations in Canadian Minimum Navigation Performance Airspace

(MNPS).

342

Conduct Extended Operations (ETOPS) with two-engine airplanes.

344

Conduct ETOPS in passenger-carrying airplanes with more than two-engines.

B 450

Operate into/out of or overfly sensitive international area(s) as identified in

B450 in accordance with the authorizations, conditions, and limitations of

B050.

C 048

Conduct the specified enhanced flight vision system (EFVS) operations under

§ 91.176 in accordance with the limitations and provisions in C048.

049

Use a destination airport analysis program.

C 051

Conduct terminal instrument operations using specific procedures and landing

minima for airplanes.

9/25/18 AC 135-44

Appendix C

C-5

Part

Purpose

C 052

Conduct operations using basic instrument approach procedures (IAP) for

airplanes.

C 054

Conduct IFR approach procedures using special IFR landing minimums for

airplanes.

C 055

Derive alternate airport weather minimums from the standard table for

airplanes.

057

Use IFR takeoff minimums for part 135 airplane operations—all airports.

C 058

Conduct foreign terminal instrument procedures with special restrictions for

airplanes.

C 060

Conduct Category (CAT) II or CAT II and III instrument approach and

landing operations in accordance with OpSpec C060.

C 061

Use flight control guidance systems for airplane automatic landing operations

other than CAT II and III.

C 062

Use manually flown flight control guidance systems certified for airplane

landing operations.

C 063

Conduct IFR RNAV 1 and/or Required Navigation Performance (RNP) 1

instrument departure procedures, RNAV 1 and/or RNP 1 Standard Terminal

Arrival Routes (STAR) published in accordance with 14 CFR part 97, and/or

tailored arrivals (TA).

C 064

Conduct nonscheduled passenger and/or all-cargo, special terminal area IFR

airplane operations in Class G airspace and at airports without an operating

control tower.

C 065

Use powerplant reversing systems for rearward taxi in specific airplane

operations.

C 067

Operate airplanes with special airport authorizations, provisions, and

limitations.

C 068

Conduct noise abatement departure profile operations with its subsonic

turbojet-powered airplanes over 75,000 pounds gross takeoff weight.

070

Conduct scheduled operations at authorized airports.

C 071

Use autopilot minimum use altitudes/heights in accordance with § 135.93 and

the limitations and provisions of OpSpec C071.

C 072

Conduct engine-out departure procedures with approved 10-minute takeoff

thrust time limits.

C 073

Use minimum descent altitude (MDA) as a decision altitude (DA)/decision

height (DH) with vertical navigation (VNAV) on a nonprecision approach

(NPA).

075

Conduct airplane IFR circle-to-land approach maneuvers.

076

Conduct airplane contact approaches using IFR CAT I landing minimums.

C 077

Conduct certain part 135 turbojet operations in the terminal area using visual

flight rules (VFR).

9/25/18 AC 135-44

Appendix C

C-6

Part

Purpose

C 079

Conduct part 135 IFR airplane operations using lower-than-standard takeoff

minima.

C 080

Conduct scheduled passenger, special terminal area IFR airplane operations in

Class G airspace and at airports without an operating control tower.

C 081

Conduct the special IAP, departure procedure, STAR, and RNAV Visual

Flight Procedure (RVFP) operations specified in OpSpec C081.

300

Conduct RNAV operations substituting for part 97 instrument approaches.

C 358

Conduct “RNP-like” foreign RNAV terminal instrument procedures with

RNP lines of minima.

C 382

Use landing performance assessment procedures that increase landing

distances by at least an additional 15 percent at time of arrival for its turbojet

airplane operations.

C 384

Conduct RNP special aircraft and aircrew authorization required (SAAAR)

approaches in accordance with part 97 and OpSpec C384.

072

Conduct Continuous Airworthiness Maintenance Programs (CAMP).

073

Use an Approved Aircraft Inspection Program (AAIP).

074

Use a reliability program for the entire aircraft.

075

Use a reliability program for airframe, powerplant, systems, or selected items.

076

Use short-term escalation.

D 077

Contractually arrange with other certificated operators for maintenance of the

entire aircraft.

D 078

Use the provisions of contractual agreements limited to specific maintenance

functions.

079

Participate in a reliability program under a contractual agreement.

080

Use leased maintenance program authorization: U.S.-registered aircraft.

082

Use specific aircraft for which prorated times have been established.

D 083

Use short-term escalation authorization for borrowed parts that are subject to

overhaul requirements.

D 084

Conduct ferry flights under special flight permits (SFP) with continuing

authorization.

086

Use an ETOPS aircraft maintenance program.

087

Use a maintenance program for leased foreign-registered aircraft.

D 088

Use maintenance time limitations for operators with a partial reliability

program.

089

Use maintenance time limitations for operators without a reliability program.

090

Use Coordinating Agencies for Suppliers Evaluation (CASE).

D 092

Use listed airplanes for operations in designated RVSM airspace in

accordance with B046 and D092.

9/25/18 AC 135-44

Appendix C

C-7

Part

Purpose

093

Use an approved maintenance program for HNVGO.

D 094

Use a Night Vision Imaging System (NVIS) and night vision goggles (NVG)

on aircraft to conduct ANVGO per maintenance documents, under part 135.

095

Use an approved minimum equipment list (MEL).

D 101

Use aircraft with nine or less passenger seats with the additional maintenance

requirements of § 135.421 applicable for aircraft engine, propeller, and

propeller control (governor).

D 102

Use aircraft with nine or less passenger seats with the additional maintenance

requirements of § 135.421 applicable for rotorcraft operations.

D 103

Use a single-engine aircraft maintained in accordance with §§ 135.411 and

135.421 in passenger-carrying IFR operations.

D 104

Use aircraft with nine or less passenger seats with the additional maintenance

requirements of § 135.421 applicable for emergency equipment.

D 106

Suspend its liability insurance for specific aircraft in long-term storage or

maintenance.

301

Aircraft Network Security Program (ANSP) authorization

096

Use Weight and Balance (W&B) control procedures.

101

Conduct terminal flight operations under IFR—helicopter.

102

Conduct operations using basic IAPs for helicopters.

H 103

Conduct CAT I IFR landings other than airborne radar approaches—

helicopter.

104

Conduct IFR Helicopter En Route Descent Area (HEDA) procedure.

105

Use alternate airport IFR weather minimums—helicopter.

H 106

Conduct helicopter operations using standard takeoff minimums under

part 135.

H 107

Use special restrictions for foreign terminal instrument procedures—

helicopter.

108

Conduct helicopter CAT II operations.

109

Conduct helicopter CAT III operations.

H 110

Use flight control guidance systems for aircraft automatic landing

operations—helicopter.

H 111

Use manually flown flight control guidance systems certified for aircraft

landing operations—helicopter.

112

Conduct helicopter approach operations using an area navigation system.

H 113

Conduct nonscheduled passenger and all-cargo (scheduled and nonscheduled)

special terminal area IFR rotorcraft operations in Class G airspace.

114

Use special airport authorizations, limitations, and provisions—helicopter.

9/25/18 AC 135-44

Appendix C

C-8

Part

Purpose

H 116

Conduct helicopter operations using lower-than-standard takeoff minimums

under part 135.

H 117

Conduct helicopter CAT I, instrument landing system (ILS), microwave

landing system (MLS), or GPS landing system (GLS) approach procedures

with specific IFR landing minimums.

H 118

Conduct helicopter circle-to-land maneuvers using IFR CAT I landing

minimums.

119

Conduct helicopter contact approaches using IFR CAT I landing minimums.

H 120

Conduct operations in authorized airports for scheduled operations—

helicopter.

H 121

Conduct scheduled passenger terminal area IFR rotorcraft operations in

Class G airspace.

H 122

Conduct the special IAP, departure procedure, and STAR rotorcraft

operations specified in OpSpec H122.

H 123

Conduct Class I navigation using area or long-range navigation systems with

WAAS for rotorcraft RNP 0.3 en route and terminal operations.

Advisory Circular Feedback Form

If you find an error in this AC, have recommendations for improving it, or have suggestions for

new items/subjects to be added, you may let us know by contacting the Flight Standards

Directives Management Officer at 9-AWA-AFB[email protected].

Subject: AC 135-44, Part 135 Operator Aircraft Configuration Inspection

Date: _____________________

Please check all appropriate line items:

An error (procedural or typographical) has been noted in paragraph ____________

on page _______.

Recommend paragraph _____________ on page __________ be changed as follows:

______________________________________________________________________

In a future change to this AC, please cover the following subject:

(Briefly describe what you want added.)

______________________________________________________________________

Other comments:

______________________________________________________________________

I would like to discuss the above. Please contact me.

Submitted by: Date: ______________________