AD 92-21-02
Unsafe Condition
Incorrect rudder deflection due to brackets with incorrect dimensions in the rudder post assembly, part numbers 77938-003 and 77939-003.
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Required Actions
Revise the AFM's Limitations Section by adding speed and weather limitations, inspect rudder servo input brackets dimensions per SBF100-027-041, replace incorrect brackets before further flight, and follow service bulletin for inspection and replacement.
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Compliance Time
Within 30 days after the effective date for AFM revisions; within 45 days after the effective date for bracket inspection; replacement must be done before further flight after inspection.
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Affected Aircraft
FOKKER Model F28 Mark 0100 series airplanes with serial numbers 11262 through 11267, inclusive, and 11270 through 11376, inclusive.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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