AD 99-06-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Short Brothers PLC | SD3-60 | Airworthiness Directives; Short Brothers Model SD3-60 and SD3-60 SHERPA Series Airplanes |
| aircraft | Short Brothers PLC | SD3-60 SHERPA | Airworthiness Directives; Short Brothers Model SD3-60 and SD3-60 SHERPA Series Airplanes |
Unsafe Condition
Corrosion and/or wear of the top and bottom shear decks of the left and right stub wings in the area of the forward pintle pin of the main landing gear (MLG), which could result in failure of the MLG to extend or retract.
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Required Actions
Conduct repetitive inspections to detect corrosion and/or wear of the top and bottom shear decks of the stub wings near the MLG's forward pintle pin, repair as necessary, and either install bushings, replace parts with FAA/CAA-approved methods, or modify with a pin and nut as per Service Bulletin SD360-32-35 to terminate inspections.
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Compliance Time
within 90 days
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Affected Aircraft
Short Brothers Model SD3-60 and SD3-60 SHERPA series airplanes
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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