AD 94-06-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Short Brothers PLC | SD3-30 | Airworthiness Directives; Short Brothers PLC Model SD3-30, SD3-60, and SD3-SHERPA Series Airplanes |
| aircraft | Short Brothers PLC | SD3-60 | Airworthiness Directives; Short Brothers PLC Model SD3-30, SD3-60, and SD3-SHERPA Series Airplanes |
| aircraft | Short Brothers PLC | SD3-SHERPA | Airworthiness Directives; Short Brothers PLC Model SD3-30, SD3-60, and SD3-SHERPA Series Airplanes |
Unsafe Condition
Corrosion on the distance piece associated with the wing strut pick up on the stub wing and adjacent side plates could result in reduced strength of the wing strut attachment to the stub wing on the fuselage and subsequent reduced structural strength of the main wing.
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Required Actions
Perform a detailed visual inspection to detect corrosion in the pockets on the horizontal leg of the distance piece and adjacent side plates, repair or rework corroded components within limits, replace distance pieces outside limits with new improved designs, and conduct repetitive inspections at intervals not exceeding 90 days or 600 hours time-in-service. Submit inspection reports to Short Brothers PLC.
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Compliance Time
Within 30 days after May 27, 1993, and subsequent inspections within 90 days or 600 hours time-in-service, whichever occurs earlier.
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Affected Aircraft
Short Brothers PLC Model SD3-30, SD3-60, and SD3-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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