AD 70-15-12
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Short Brothers PLC | SC-7 Skyvan Series 3 | Airworthiness Directives; Short Brothers and Harland Model SC-7, Series III Airplanes |
Unsafe Condition
Cracking around the drain boss of the engine plenum chamber
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Incorporate Modification No. 1034 by installing flexible drain lines between the engine plenum chamber and bottom heat shield on both engines in accordance with Shorts Bulletin No. 71-56, Revision 1, dated May 20, 1970, or a later ARB-approved issue or an FAA approved equivalent.
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Compliance Time
within the next 25 hours' time in service after the effective date of this AD
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Affected Aircraft
Short Brothers and Harland Model SC-7, Series III airplanes
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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