AD 2007-06-52
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 737-800 | Airworthiness Directives; Boeing Model 737-800 Series Airplanes |
Unsafe Condition
Interference within the actuator main control valve could result in a spoiler actuator hardover, causing the spoiler surface to jam in the fully extended position. Two or more hardover failures of the spoiler surfaces in the up direction on the same wing, if undetected prior to takeoff, can cause significant roll and consequent loss of control of the airplane.
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Required Actions
Inspect spoilers to determine spoiler position after every landing and after any rejected takeoff maneuvers. Replace the flight spoiler actuator with a flight spoiler actuator having part number P665A0001-01 or higher dash number if any spoiler is found in the up position with the speedbrake handle in the down position. Perform an operational test of the speedbrake control system after any maintenance actions that operate the spoiler system and replace the flight spoiler actuator if necessary. Report to the manufacturer any spoiler panel found in the up position with the speedbrake handle in the down position.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 50 flight hours after the effective date of this AD.
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Affected Aircraft
Boeing Model 737-800 series airplanes equipped with an SFP package.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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