For ELT testing compliance, you should plan the test within:

• A. The first 5 minutes after the hour
• B. The last 5 minutes after the hour
• C. Any minute during flight
• D. Only on the ground without engine running

Answer: (A)

ELT testing is regulated to prevent false alarms from cluttering emergency systems. Plan the test for the first five minutes after the hour. This fixed window makes it clear to monitoring networks and others that you’re conducting a test, not a real distress signal, helping avoid unnecessary alarms or misinterpretation. The test should be brief—typically about 5 seconds—and follow the manufacturer’s instructions. Testing at other times—late in the hour, any minute during flight, or only on the ground—does not align with the standard compliance window, which is why the first five minutes after the hour is the correct practice.