Type training · Boeing 737 Classic B2 · ATA 31
Boeing 737 Classic B2: Indicating and Recording (ATA 31)Type training questions & answers
Flight data recorder and FDAU, ACMS and QAR, clocks, aural warnings, takeoff warning and the EIS displays.
- A worked explanation on every question
- Written for the 737-300/400/500 avionics
- Read in English or 15 other languages
Sample Indicating and Recording questions with answers
Three questions from the free preview. Think of your answer first, then open the explanation.
1.How long does the 737 Classic flight data recorder keep data?
- A.The last 25 hours
- B.The last 2 hours
- C.The last 30 minutes
Show answer and explanation
Correct answer: A. The last 25 hours
The DFDR digitally records selected signals for the last 25 hours of operation. Ref 737-300/400/500 AMM 31-31-00.
2.When does the 737 Classic flight data recorder switch on automatically?
- A.In flight, or engine running
- B.When the battery switch is on
- C.Only at takeoff thrust
Show answer and explanation
Correct answer: A. In flight, or engine running
It runs automatically in flight, and on the ground when an engine is running (oil pressure switches). Ref 737-300/400/500 AMM 31-31-00.
3.What does a yellow BITE indicator on the 737 Classic DFDR show?
- A.The recorder is operating normally
- B.The tape is nearly full, change it
- C.Recorder faulty or unpowered
Show answer and explanation
Correct answer: C. Recorder faulty or unpowered
Yellow means faulty or power off; black means working correctly. Ref 737-300/400/500 AMM 31-31-00.
Part of the Boeing 737 Classic B2 type course
One chapter of the Boeing 737 Classic B2 type course question bank, for the 737-300/400/500 avionics, written in our own words for revision. Your type course and the aircraft maintenance manual stay the authority: limits and procedures can differ between airframes and operators.
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