AD 93-25-11
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Short Brothers PLC | SD3-60 | Airworthiness Directives; SHORT BROTHERS, PLC Model SD3-60 Series Airplanes |
Unsafe Condition
Loss of the structural integrity of the horizontal stabilizer attachment to the fuselage due to loose, missing, or failed rivets at the aft face of the rear spar web-to-boom riveting.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Perform a visual inspection at the aft face of the rear spar web-to-boom riveting to detect loose, missing, or failed rivets per Shorts Service Bulletin SD360-55-16. Repeat inspections at intervals not exceeding 1,000 landings. Repair defective rivets prior to further flight as per Part II of the same service bulletin. Modification 7948 per SD360-55-12 terminates repetitive inspections.
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Compliance Time
Prior to the accumulation of specified total landings (12,000 or 8,000 as applicable) or within 100 landings after January 26, 1994, whichever occurs later. For airplanes with prior AD 93-01-06 inspections but no Modification 7948, within 1,000 landings after the last inspection under AD 93-01-06 or within 100 landings after January 26, 1994, whichever is later.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Short Brothers PLC Model SD3-60 series airplanes, serial numbers SH3601 through SH3691 inclusive, and SH3694.
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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