Practice Test Geeks(AET) Aircraft Electronics Technician Practice Test
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AET Regulatory Compliance and Certification Flashcards

7 cards from real AET practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. Which FAA regulation requires that all avionics work performed on air carrier aircraft be inspected by a qualified inspector before return to service?

    Answer: 14 CFR Part 121.369

    14 CFR Part 121.369 requires air carriers to have an approved inspection program ensuring all maintenance, including avionics, is inspected before return to service.

  2. A Supplemental Type Certificate (STC) for a new avionics installation specifies a specific antenna placement. A technician installs the antenna 2 inches from the approved location. This action constitutes a:

    Answer: Major alteration requiring FAA Form 337

    Deviating from STC installation instructions constitutes a major alteration requiring FAA Form 337, as the STC defines the approved data for the installation.

  3. Under 14 CFR Part 39, an Airworthiness Directive (AD) is legally classified as:

    Answer: A Federal Regulation with the force of law

    Airworthiness Directives issued under 14 CFR Part 39 are Federal Regulations and must be complied with; non-compliance renders the aircraft unairworthy.

  4. When an avionics technician working for a Part 145 repair station signs off a completed repair, the Return to Service entry must include which of the following?

    Answer: The repair station certificate number and the name of the certifying technician

    14 CFR Part 43.9 requires the Return to Service entry to include the repair station's certificate number and the name of the person approving the work.

  5. Which RTCA standard is most commonly referenced for avionic software development and assurance in FAA-certificated aircraft?

    Answer: DO-178

    RTCA DO-178 (Software Considerations in Airborne Systems and Equipment Certification) is the primary standard for developing and certifying airborne software.

  6. An FAA-certificated avionics technician may legally perform a major alteration on a certificated aircraft only if the work is performed in accordance with:

    Answer: FAA-approved data such as an STC, AD, or FAA-approved engineering order

    Major alterations must be performed in accordance with FAA-approved data, which includes STCs, ADs, FAA-approved engineering orders, or other data acceptable to the FAA.

  7. Under 14 CFR Part 91.411, altimeter systems and altitude reporting equipment used in controlled airspace must be tested and inspected within the preceding:

    Answer: 24 calendar months

    14 CFR Part 91.411 requires that altimeter systems and altitude reporting equipment be inspected and tested within the preceding 24 calendar months.