If after corrective action the reverser will not stow and UNLOCK/DEPLOY annunciators and EMER STOW are illuminated, the crew should move the thrust lever to which position?

If after corrective action the reverser will not stow and UNLOCK/DEPLOY annunciators and EMER STOW are illuminated, the crew should move the thrust lever to which position?

• A. Idle
• B. Cutoff and maintain an airspeed not to exceed 200 knots
• C. Max thrust
• D. OFF

Answer: (B)

When a reverser won’t stow and the EMER STOW light is on, the priority is to secure the engines and keep the airplane controllable without relying on the reversers. Moving the thrust levers to Cutoff immediately stops fuel to the engines, effectively shutting them down and preventing any unwanted thrust or differential issues from a stuck or misbehaving reverser. After securing the engines, fly the airplane at a safe, controlled speed and use the available braking and deceleration methods for a stable approach or landing. The specified limit of not exceeding 200 knots gives you a comfortable margin to manage deceleration and maneuvering with the engines off and reversers unreliable. Idle would leave some thrust, which isn’t as safe when a reverser fault is present. Max thrust would worsen the situation by increasing thrust and potential instability. OFF is not the recommended action for this procedure and may not guarantee a clean shutdown in this system, whereas Cutoff directly secures fuel to the engines.

When a reverser won’t stow and the EMER STOW light is on, the priority is to secure the engines and keep the airplane controllable without relying on the reversers. Moving the thrust levers to Cutoff immediately stops fuel to the engines, effectively shutting them down and preventing any unwanted thrust or differential issues from a stuck or misbehaving reverser. After securing the engines, fly the airplane at a safe, controlled speed and use the available braking and deceleration methods for a stable approach or landing. The specified limit of not exceeding 200 knots gives you a comfortable margin to manage deceleration and maneuvering with the engines off and reversers unreliable.

Idle would leave some thrust, which isn’t as safe when a reverser fault is present. Max thrust would worsen the situation by increasing thrust and potential instability. OFF is not the recommended action for this procedure and may not guarantee a clean shutdown in this system, whereas Cutoff directly secures fuel to the engines.