AD 98-21-33
Unsafe Condition
Failure of the main landing gear (MLG) due to loose connections between the upper and lower torque links of the MLG.
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Required Actions
Inspect the torque links of the left and right MLG assemblies to determine if the lockwire is installed on the apex bolt. If discrepancies are found, retorque the apex bolt and install lockwire in accordance with the specified AOM. No person shall install an MLG torque link joint apex pin and nut installation without prior inspection and corrective action as per the AOM.
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Compliance Time
Within 5 days after the effective date of this AD for Menasco Aerospace, Ltd., MLG assemblies; within 30 days after the effective date of this AD for Messier-Dowty, Ltd., MLG assemblies.
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Affected Aircraft
Fokker Model F.28 Mark 0070 and 0100 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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