Certified Transport Registered Nurse Certification Practice Exam

What is the first step in the post-crash shut down sequence?

1. Throttle down

2. Circuit breaker check

3. Fuel drain

4. Turn off the ELT

The correct answer is: Throttle down

The first step in the post-crash shut down sequence is to throttle down. This initial action is critical as it helps to reduce the risk of further engine operation and minimizes the chances of fuel leakage or ignition due to residual fuel in the system. Throttling down ensures that any remaining combustion processes are halted, thus enhancing safety for both the crew and any injured individuals on board. This step is important as it sets the stage for subsequent actions in the shut down sequence, as those can safely take place only after the engine's power is effectively reduced. Following the throttling down, the crew can then proceed with other procedures like checking circuit breakers, draining fuel, or dealing with emergency locator transmitters. Other parts of the sequence, although necessary, are not prioritized in the same way. For example, checking circuit breakers or turning off the ELT can occur after addressing the immediate risks posed by an active engine.