Maintenance Procedures and Safety 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.
Read the first 7 Maintenance Procedures and Safety flashcards as text
Which of the following is the CORRECT way to handle a suspected counterfeit avionics part discovered in the supply chain?
Answer: Quarantine the part and report it to the FAA via a Suspected Unapproved Parts (SUP) notification
Suspected counterfeit or unapproved parts must be quarantined and reported to the FAA via the Suspected Unapproved Parts program to protect the fleet.
A technician installs a new avionics component and finds that a required placard is missing from the instrument panel. The CORRECT action is to:
Answer: Fabricate or order the correct placard and install it before return to service
Required placards are part of the aircraft's airworthiness requirements and must be installed and legible before the aircraft is returned to service.
When performing a continuity check on an aircraft wiring harness, the technician should FIRST:
Answer: Disconnect power and verify the circuit is de-energized before testing
Before any continuity test, the circuit must be completely de-energized to protect equipment and prevent inaccurate readings from back-EMF sources.
What does the ESD (Electrostatic Discharge) symbol on an avionics component packaging indicate?
Answer: The component is sensitive to static electricity and requires ESD-safe handling procedures
The ESD symbol warns that static electricity can damage the component's sensitive circuits, requiring ESD-safe work surfaces, wrist straps, and handling procedures.
An avionics technician is assigned to work near aircraft fuel tanks. Which of the following is the MOST critical safety precaution?
Answer: Bond and ground the aircraft, eliminate all ignition sources, and ensure adequate ventilation
Fuel vapor ignition prevention requires grounding to prevent static sparks, eliminating all ignition sources, and ventilation to disperse accumulated fuel vapors.
What is the maximum length of time a calibration sticker on a test instrument can be expired before the instrument must be recalibrated before use on an aircraft?
Answer: No grace period — any instrument with an expired calibration sticker must NOT be used on aircraft
Instruments with expired calibration certificates must not be used on aircraft; there is no grace period because calibration accuracy cannot be guaranteed after expiration.
When routing new avionics wiring near aircraft control cables, the minimum separation distance specified in AC 43.13-1B is:
Answer: 3 inches
AC 43.13-1B specifies a minimum 3-inch separation between electrical wiring and aircraft control cables to prevent chafing interference with flight control systems.