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737-300 Engine Inoperative Approaches

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PostPosted: Thu Feb 21, 2008 4:36 pm    Post subject: 737-300 Engine Inoperative Approaches Reply with quote

AFDS management and associated procedures are similar to those used during the normal ILS approach. Flight director (manual) or single autopilot may be used to category I minimums with an engine initially inoperative if the airplane is trimmed for the condition. The use of dual autopilots with an engine inoperative is not authorized.

During a single autopilot or flight director (manual) approach, the pilot must use rudder pedal pressure to control yaw, followed by rudder trim to maintain an in-trim condition during the entire approach. A centered control wheel indicates proper trim. Use of the autothrottle for an approach with an engine inoperative is not recommended.

Rudder trim may be set to zero to facilitate directional control during thrust reduction. This should be accomplished by 500 feet AFE to allow the PM ample time to perform other duties and make appropriate altitude callouts. It may not be advisable to center the rudder trim due to crew workload and the possibility of a missed approach. However, if touchdown occurs with the rudder still trimmed for the approach, be prepared for the higher rudder pedal forces required to track the centerline on rollout.

If an engine failure should occur on final approach with the flaps in the landing position, the decision to continue the approach or execute a go-around should be made immediately. If the approach is continued, retract the flaps to 15 and adjust thrust on the operating engine. Speed should be increased to 15 knots over the previously set flaps 30 or 40 VREF. This is equal to atleast VREF for flaps 15.
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