AD 98-20-03
Unsafe Condition
Failure of main landing gear (MLG) torque links due to excessive free-play in the center joint and MLG assembly, which could result in reduced controllability of the airplane on the ground during takeoff or landing.
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Required Actions
Perform a visual inspection of the center joint of the MLG torque link within 1,000 flight cycles after the effective date, repeating every 1,000 flight cycles. If discrepancies are found, correct them before further flight. Perform a visual inspection of the MLG assembly for excessive free-play within 3,000 flight cycles after the effective date. Install new MLG torque link dampers and revise the FAA-approved maintenance program to include inspections and overhauls of the dampers.
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Compliance Time
Within 1,000 flight cycles after the effective date of this AD for the first inspection of the center joint, and within 3,000 flight cycles after the effective date for the MLG assembly inspection. Repetitive inspections must be done at intervals not exceeding 1,000 flight cycles.
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Affected Aircraft
Fokker Model F.28 Mark 1000, 2000, 3000, and 4000 series airplanes, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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