The required action to verify ELT status pre-shutdown is to:

• A. Monitor 121.5 before engine shutdown
• B. Monitor 121.5 after engine shutdown
• C. Switch off the avionics first
• D. Confirm with ground crew

Answer: (A)

The action relies on using the emergency frequency to verify that the ELT isn’t transmitting unexpectedly. ELTs are designed to broadcast on 121.5 MHz for homing, so listening on that frequency just before you shut down lets you detect if the beacon is active. If you hear a beacon, you know the ELT is transmitting and you can address it before powering down. Waiting until after shutdown wouldn’t give you the chance to confirm or correct the ELT status, and simply switching off avionics or asking ground crew doesn’t provide the direct, immediate check of the transmitter’s state on the aircraft. Monitoring 121.5 beforehand is the most reliable way to confirm the ELT isn’t inadvertently active.