AET AET Regulatory Compliance and Certification 5

Question 1

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

Accepted Answer

14 CFR Part 121.369

Answer

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.

Question 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:

Accepted Answer

Major alteration requiring FAA Form 337

Answer

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

Question 3

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

Accepted Answer

A Federal Regulation with the force of law

Answer

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

Question 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?

Accepted Answer

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

Answer

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.

Question 5

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

Accepted Answer

DO-178

Answer

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

(AET) Aircraft Electronics Technician Practice Test

(AET) Aircraft Electronics Technician Practice Test

AET AET Regulatory Compliance and Certification 5