AD 93-16-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Short Brothers PLC | SD3-SHERPA | Airworthiness Directives; SHORT BROTHERS, PLC Model SD3-SHERPA Series Airplanes |
Unsafe Condition
Overheating and burning of the 24-gauge earth wires on electrical panels 29C and 30C on the bottom of frame 74, which could result in a fire.
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Required Actions
Replace existing 24-gauge earth wires on electrical panels 29C and 30C with 16-gauge earth wires per Shorts Service Bulletin SD3 SHERPA-24-1 dated May 1992. Alternative methods of compliance may be approved by the FAA Manager, Standardization Branch. Special flight permits may be issued under FAR 21.197 and 21.199.
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Compliance Time
Within 6 months after the effective date of this AD
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Affected Aircraft
Short Brothers PLC Model SD3-SHERPA series airplanes; serial numbers SH3201 through SH3205 inclusive; 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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