AET Maintenance Procedures 2

Question 1

Under 14 CFR 91.413, how often must an ATC transponder be tested and inspected?

Accepted Answer

Every 24 calendar months

Answer

14 CFR 91.413 requires transponder testing within the preceding 24 calendar months.

Question 2

Which FAA regulation specifies the content required for a maintenance record entry after work is performed?

Accepted Answer

14 CFR 43.9

Answer

14 CFR 43.9 requires a description of work, completion date, name of the person, and signature with certificate number.

Question 3

Which FAA Advisory Circular is the standard reference for acceptable methods of aircraft wiring repair when no manufacturer data exists?

Accepted Answer

AC 43.13-1B

Answer

AC 43.13-1B, Chapter 11, covers acceptable practices for aircraft electrical system inspection and repair.

Question 4

Before removing a line-replaceable unit (LRU) from an avionics rack, what should a technician do first?

Accepted Answer

Open and tag the associated circuit breakers

Answer

Pulling and tagging (collaring) the circuit breakers removes power and prevents accidental re-energizing during removal.

Question 5

A wrist strap used for ESD protection typically contains a series resistor of about what value?

Accepted Answer

1 megohm

Answer

A 1 megohm resistor limits current through the technician if they contact a live voltage while grounded.

AET - Avionics Electronic Technicians Practice Test