8900.1 CHG 563



Section 2  Safety Assurance System: Evaluate Avionics Equipment Approval

Indicates new/changed information.

Source Basis:

    Section 91.205, Powered Civil Aircraft with Standard Category U.S. Airworthiness Certificates: Instrument and Equipment Requirements.

    Section 91.207, Emergency Locator Transmitters.

    Section 91.215, ATC Transponder and Altitude Reporting Equipment and Use.

    Section 91.219, Altitude Alerting System or Device: Turbojet-Powered Civil Airplanes.

    Section 91.221, Traffic Alert and Collision Avoidance System Equipment and Use.

    Section 91.223, Terrain Awareness and Warning System.

    Section 91.225, Automatic Dependent Surveillance-Broadcast (ADS-B) Out Equipment and Use.

    Section 121.303, Airplane Instruments and Equipment.

    Section 135.143, General Requirements.


Indicates new/changed information.

A.    Program Tracking and Reporting Subsystem (PTRS) Activity Code. Use PTRS activity code Avionics: 5446.

B.    Safety Assurance System (SAS) Automation. This section is related to SAS Element 4.6.1, (AW) Avionics Special Emphasis Programs.

Indicates new/changed information.

4-1377    OBJECTIVE. This section provides guidance for evaluating the approval status of avionics equipment and instruments relative to the applicable operational rule.

4-1378    GENERAL. Requirements for aircraft system and equipment are listed in Title 14 of the Code of Federal Regulations (14 CFR) Subchapters F and G. The rules for aircraft and operators conducting operations under 14 CFR parts 91, 125, and 129, state that specified required systems or equipment must be Federal Aviation Administration (FAA)-approved to meet applicable standards. The rules for aircraft and operators conducting operations under 14 CFR parts 121 and 135 state that all required instruments and equipment must be approved to meet applicable standards.

A.    Use of Term “Approval.” In the context of 14 CFR parts 91, 121, 125, 129, and 135 and within this section, “approved” means the instrument and equipment designs have been approved by the FAA Administrator to meet the applicable standards and requirements for use under the regulatory part, and “required” means the instrument or equipment is mandated by the operations rule(s) applicable to the operator or use of the aircraft.

B.    Methods of Approval. FAA approval may be accomplished by:

1)    Use of an applicable Technical Standard Order (TSO),
2)    Acceptance as part of the aircraft on the original type certificate (TC) or Supplemental Type Certificate (STC),
Indicates new/changed information.
3)    Parts Manufacturer Approval (PMA), or
4)    The Administrator, in accordance with standard repair and alteration procedures (FAA Form 337, Major Repair and Alteration (Airframe, Powerplant, Propeller, or Appliance)).

C.    Verification of Approval. Verification of approval can be accomplished by various means, such as visual inspection of the equipment manufacturer’s data plate and/or review of applicable records, such as flight manuals, equipment lists, or maintenance records.


A.    Prerequisites.

Indicates new/changed information.

    Knowledge of the regulatory requirements of parts 91, 121, 125, 129, and 135, as applicable.

    Successful completion of the Airworthiness Inspector Indoctrination course(s) or equivalent.

Indicates new/changed information.

    Knowledge of the equipment/instruments.

B.    Coordination.

1)    Coordination with FAA Aircraft Certification Office (ACO) personnel and/or the equipment manufacturer may be required when previous equipment approval has not been issued or operating limitations cannot be determined (see Volume 4, Chapter 9, Section 1).
Indicates new/changed information.
2)    Avionics equipment approvals for air carriers may require coordination with principal operations inspectors (POI) or principal avionics inspectors (PAI) in situations that involve Lower Landing Minimums (LLM), long-range navigation systems (LRNS), flight control systems, etc.


Indicates new/changed information.

A.    References. Title 14 CFR Parts 21, 23, 25, 27, 29, 43, 91, 121, 125, 129, and 135.

B.    Forms. None.

C.    Job Aids. None.

4-1381    PROCEDURES.

Indicates new/changed information.

A.    Review the Applicable Regulations. Determine which instruments and/or equipment require approval based on intended operation.

B.    Verify Approval.

1)    If the equipment data plate does not indicate the appropriate approval status, determine through the operator’s records the method by which the equipment received approval.
2)    Ensure that all avionics equipment requiring FAA approval has the appropriate documentation for that approval. If FAA approval cannot be substantiated, the equipment and/or aircraft cannot be used until substantiated by the owner/operator.
Indicates new/changed information.
3)    Ensure that the equipment approval is appropriate for the aircraft it is used with.

4-1382    TASK OUTCOMES.

Indicates new/changed information.

A.    Complete the PTRS Record.

B.    Follow Volume 10 SAS Guidance for Module 4 (Chapter 5) and Module 5 (Chapter 6). For parts 121 and 135.

C.    Complete the Task. Completion of this task could result in a letter describing any limitation(s) on the use of the instrument or equipment until deficiencies are corrected or approval is obtained.

D.    Document the Task. File all supporting paperwork in the operator’s office file.

4-1383    FUTURE ACTIVITIES. Followup activity, as required.

RESERVED. Paragraphs 4-1384 through 4-1400.