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Meaning of the abbreviation BITE

Aviation Mechanic Airframe (AMA) practice question 7 of 20 on Aircraft Instrument Systems. ACS element AM.II.H.K14 · difficulty: recall. Want to answer it in a timed quiz? Use the Aviation Mechanic Airframe (AMA) practice mode.

Question bank updated 2026-09-22

QUESTIONIn aircraft monitoring and warning systems, what does the abbreviation BITE stand for?

  1. ABasic instrument test entry.
  2. BBus integrity test element.
  3. CBuilt-in test equipment.
Show the answer and explanation

Correct answer: C. Built-in test equipment.

  • A — incorrect This expansion does not appear in the handbook and does not describe the self-test function the term refers to.
  • B — incorrect Data bus checking may be one thing a self-test covers, but it is not what the abbreviation stands for.
  • C — correct The handbook defines BITE as built-in test equipment, standard on monitoring systems so they can test themselves as well as the aircraft systems.

BACKGROUND

BITE stands for built-in test equipment, and it is standard for aircraft monitoring systems to monitor themselves as well as the aircraft systems they watch. On an aircraft equipped with an electronic centralized aircraft monitor, the flight warning computers and the signal generators self-test on startup, and a maintenance panel allows further testing and annunciation of faults on demand. All of the system inputs to the flight warning computers can be tested for continuity from that panel. An engine indicating and crew alerting system uses BITE the same way, with a maintenance panel whose push-button switches display information on various systems for analysis when the aircraft is on the ground. Flight management systems also include BITE, and technicians follow the manufacturer's procedures to interpret what the self-test reports.

STUDY TIP

Tie the term to what it does: the monitoring system tests itself, and the technician reads the results on a maintenance panel on the ground.

KEY POINTS

  • BITE means built-in test equipment.
  • Monitoring systems use BITE to test themselves as well as the aircraft systems.
  • Maintenance panels let technicians run and read these self-tests on the ground.

SOURCES

  • sources/ama-airframe/ch10.txt "Electronic Centralized Aircraft Monitor (ECAM)"
  • sources/ama-airframe/ch10.txt "Engine Indicating and Crew Alerting System (EICAS)"
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SkyDrill is not affiliated with the FAA. This is an original practice item based on FAA-H-8083-31B Aviation Maintenance Technician Handbook – Airframe, and 14 CFR part 43. Regulations and handbooks are revised; confirm details against the current edition.