communicationsFAA-published sample question (PAR, Aug 2021)
When making routine transponder code changes, pilots should avoid inadvertent selection of which code?
A
7200
B
7000
C
7500✓ Correct Answer
Explanation
AIM 4-1-20 says that during routine code changes pilots should avoid inadvertently selecting codes 7500, 7600 or 7700, which would trigger momentary false alarms at automated ground facilities. 7500 is the hijack code, so it must not be passed through by accident. 7000 and 7200 are ordinary codes with no emergency meaning. For example, when changing from 2700 to 7200, go to 2200 first and then to 7200.
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