AD 98-20-32
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Short Brothers PLC | SD3-60 SHERPA | Airworthiness Directives; Short Brothers Model SD3-60 SHERPA Series Airplanes |
Unsafe Condition
Corrosion of the distance piece and adjacent side plates of the fuselage wing strut pick-up of the left- and right-stub wings could result in reduced strength of the wing strut attachment to the stub wing on the fuselage, and consequent reduced structural integrity of the main wing.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Clean and visually inspect the distance piece and adjacent side plates to detect corrosion. Rework or replace damaged components if corrosion exceeds specified limits. Apply additional corrosion protection treatment if no corrosion is found or within limits. Repeat inspections at intervals not exceeding 600 hours time-in-service or 90 days, whichever occurs first, if corrosion was present.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 90 days after the effective date of this AD (October 30, 1998).
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Affected Aircraft
Short Brothers PLC Model SD3-60 SHERPA series airplanes, certificated in any category.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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