AD 87-16-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Short Brothers PLC | SD3-60 | Airworthiness Directives; SHORT BROTHERS PLC Model SD3-60 Airplanes |
Unsafe Condition
Loss of the structural integrity of the horizontal stabilizer due to cracks between fuselage attach fittings at 12.5" left and right of the airplane center line.
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Required Actions
Visually inspect the forward face of the rear spar web and the aft face of the front spar web for cracks in accordance with Service Bulletin SD360-55-11. If cracks are found, modify the horizontal stabilizer per Service Bulletin SD360-55-12 before further flight. Repeat inspections at intervals not exceeding 1,500 or 1,000 flights depending on airplane serial number and flap usage.
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Compliance Time
Within the next 100 flights or prior to the accumulation of 12,000 flights (for SH3680-SH3691 and SH3694 with 15 degrees flap take-off since 5,000 flights) or within the next 100 flights or prior to 8,000 flights (for others), whichever occurs later.
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Affected Aircraft
SHORT BROTHERS PLC Model SD3-60 airplanes, serial numbers SH3601 through SH3691 and SH3694.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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