AD 96-16-05
Unsafe Condition
Collapse of the main landing gear (MLG) under extreme inward side-load conditions (such as touching down at large 'crab' angles) due to a lock toggle-link being pulled out of its over-center position by a bottomed MLG downlock-actuator, as a result of the relative movement of the upper and lower side stay members.
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Required Actions
Perform a pre-load adjustment of the MLG downlock-actuator within 8 months after the effective date of this AD using specified service bulletins. Repeat the adjustment at each installation or replacement of the actuator unless an alternative maintenance program is incorporated as described.
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Compliance Time
within 8 months after the effective date of this AD
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Affected Aircraft
Fokker Model F28 Mark 1000, 2000, 3000, 4000, and 0100 series airplanes equipped with specific Dowty Aerospace main landing gear downlock-actuators (part numbers listed in the AD).
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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