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D6-27370-866-EGP B-8 Page 1 of 2
CoversFile HighlightSpoiler Retraction Failure on Airplanes with the Short Field Performance PackageEGP-8
Flight Crew Operations Manual Bulletin
for
Egyptair
Number: EGP-8
IssueDate: March 5, 2007
Subject: Spoiler Retraction Failure on Airplanes with the Short Field
Performance Package
Reason: This bulletin informs flight crews of the potential for the flight spoilers
to fail to retract fully on airplanes equipped with the Short Field
Performance package.
THE FOLLOWING PROCEDURE AND/OR INFORMATION IS EFFECTIVE UPON RECEIPT
Background Information
An operator of a B737 airplane equipped with the Short Field Performance
package has informed Boeing of failures of flight spoilers to retract after the
speedbrake handle was moved to the DOWN position after landing. The spoiler
was discovered in the full extended position during a routine maintenance walk-
around. The spoiler remained in the full extended position after cycling of the
speedbrake handle.
Further investigation has determined the failure can occur during a rejected
takeoff maneuver, during a rejected landing or during a full stop landing,
following deployment of the speedbrakes, either automatically or manually.
If the failure is not detected prior to takeoff, the takeoff configuration warning
will not sound if any flight spoiler remains extended with the speedbrake handle
in the DOWN position.
The cause of the failure has been identified as interference within the actuator
main control valve. Boeing and the actuator supplier are actively working to
modify the system and to provide new actuators to the fleet. Service Bulletin
information will be provided as soon as it is available.
The Boeing Company
Seattle, Washington 98124-2207
Information in this bulletin is recommended by The Boeing Company, but may not be FAA approved
at the time of writing. In the event of conflict with the FAA approved Airplane Flight Manual
(AFM), the AFM shall supersede. The Boeing Company regards the information or procedures
described herein as having a direct or indirect bearing on the safe operation of this model airplane.
September 24, 2015
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