FAA Powerplant Written Practice Test 2026 – Complete Exam Prep

The BITE (Built-In Test Equipment) test is a crucial part of maintaining the fire detection system's reliability and functionality in an aircraft. Performing this test every 5 minutes is required to ensure that the fire detection system is continuously monitoring and that it is functioning correctly throughout the operation of the aircraft. Regular testing within this timeframe allows for immediate detection of any potential failure or issues with the detection system, enhancing safety and preparedness in responding to a fire event. This frequent testing helps to ensure that all sensors and alarms are operational, thereby minimizing the risk associated with fire hazards during flight.