If you detect abnormal engine performance during a maneuver, what is the recommended initial action?

• A. Abort the maneuver, secure the engine as appropriate, and inform the crew.
• B. Continue at reduced speed to complete the maneuver.
• C. Ignore the warning if it persists.
• D. Switch to backup engine only.

Answer: (A)

When you sense abnormal engine performance during a maneuver, safety comes first. The best first move is to abort the maneuver, secure the engine as appropriate, and inform the crew. This immediate action stops the current operation while preventing further damage or loss of control, and it lets the crew prepare for any needed emergency steps or assistance. Securing the engine per procedure reduces the risk of a fire, fuel leak, or complete engine failure, and telling the crew ensures everyone knows the situation and can respond cohesively. After the engine is secured and the crew is alerted, you can reassess and decide on the next steps, including whether a backup power source is needed or if conditions allow a safe return.

Continuing at reduced speed keeps you in a potentially hazardous state and may not address the underlying fault. Ignoring the warning is unsafe, as a fault could worsen without immediate attention. Switching to a backup engine without first securing the current engine may leave you with unaddressed issues and divided resources.