AD 83-26-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | BAE Systems (Operations) Limited | HS 748 Series 2A | Airworthiness Directives; BRITISH AEROSPACE Model HS 748 Airplanes |
| aircraft | BAE Systems (Operations) Limited | HS 748 Series 2B | Airworthiness Directives; BRITISH AEROSPACE Model HS 748 Airplanes |
Unsafe Condition
Cracks in the main landing gear inboard pivot brackets (part numbers 15F11365 and 16F11365) due to corrosion, loose bolts, and cracks; cracks in the joints between the tailplane center torsion box and outer tailplanes; and potential failure of aileron control quadrant assemblies (part numbers 1R4583 and 2R4583).
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect and repair main landing gear inboard pivot brackets per Service Bulletin 57/59; inspect and repair tailplane joints per Service Bulletin 55/19, Rev 1; modify aileron control quadrant assemblies per Service Bulletin 27/75. Compliance with alternate means may be approved by the FAA.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Prior to accumulating 25,000 landings or within the next 750 landings after 01/30/1984, whichever is later, and thereafter every 1,500 landings for the landing gear. For tailplane joints: prior to 18,000 hours time in service or within 750 hours after 01/30/1984, thereafter every 3,000 hours. For aileron assemblies: prior to 12,000 hours time in service or within 750 hours after 01/30/1984.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
BAE Systems (Operations) Limited HS 748 Series 2A and 2B airplanes as listed in the referenced service bulletins.
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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