True or False: In the event of an APU FIRE in flight, the crew receives indication of a fire, but no automatic action occurs.

The statement is true: in the event of an APU FIRE in flight, the crew receives indication of a fire, but no automatic action occurs. This scenario occurs because, while the APU may initiate warnings or alerts to inform the flight crew that a fire condition has been detected, the system does not typically engage any automatic fire suppression measures.

In most aircraft systems, the crew is required to take manual action following the indication of a fire. It's essential for the crew to be trained and prepared to handle such emergencies by following specific operational procedures, which may involve shutting down the APU and following emergency checklists to ensure safety.

Understanding this aspect of aircraft systems reinforces the importance of crew training and awareness in managing emergency situations effectively, ensuring proper responses are executed when faced with APU fire indications. Other choices might imply automated responses or conditions under which automated actions might take place, which is not standard for APU fire scenarios.