What action should you take if full power vibration limits are exceeded on a GTE?

Correct Answer: Option A — Reduce power to stay within limits.

Excessive vibration indicates mechanical distress or imbalance within the rotating assembly. Reducing power immediately mitigates the risk of catastrophic failure, blade liberation, or bearing damage. Operating beyond vibration limits violates standard gas turbine operational safety protocols, which prioritize engine integrity and personnel safety over maintaining specific power output levels.