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How often are emergency locator transmitters required to be inspected?

A

Every 12 months.✓ Correct Answer

B

Every 24 months.

C

After every 100 hours of flight time.

Explanation

14 CFR 91.207(d) requires each ELT to be inspected within 12 calendar months after the last inspection (installation, battery corrosion, controls and a check for radiated signal). 24 months is the transponder/altimeter interval, and there is no 100-hour ELT inspection rule.

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