How long are ENGINE CONTROL lights inhibited after touchdown?

How long are ENGINE CONTROL lights inhibited after touchdown?

• A. 15 seconds
• B. 30 seconds
• C. 60 seconds
• D. 90 seconds

Answer: (B)

After touchdown, the engine control lights are held off for 30 seconds. This brief inhibition lets the engines and related systems settle during the landing roll, so you aren’t distracted by nuisance warnings while braking and decelerating. If a real fault is present, the light will come on once the inhibition period ends and normal fault monitoring resumes. A shorter time wouldn’t give enough stabilization, while longer times would delay warning of genuine issues during rollout.

After touchdown, the engine control lights are held off for 30 seconds. This brief inhibition lets the engines and related systems settle during the landing roll, so you aren’t distracted by nuisance warnings while braking and decelerating. If a real fault is present, the light will come on once the inhibition period ends and normal fault monitoring resumes. A shorter time wouldn’t give enough stabilization, while longer times would delay warning of genuine issues during rollout.