AD 92-08-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 747-100 Series | Airworthiness Directives; BOEING Model 747 Series Airplanes |
| aircraft | The Boeing Company | 747-100B Series | Airworthiness Directives; BOEING Model 747 Series Airplanes |
| aircraft | The Boeing Company | 747-100B SUD Series | Airworthiness Directives; BOEING Model 747 Series Airplanes |
| aircraft | The Boeing Company | 747-200B Series | Airworthiness Directives; BOEING Model 747 Series Airplanes |
| aircraft | The Boeing Company | 747-200C Series | Airworthiness Directives; BOEING Model 747 Series Airplanes |
| aircraft | The Boeing Company | 747-200F Series | Airworthiness Directives; BOEING Model 747 Series Airplanes |
| aircraft | The Boeing Company | 747-300 Series | Airworthiness Directives; BOEING Model 747 Series Airplanes |
| aircraft | The Boeing Company | 747-400 Series | Airworthiness Directives; BOEING Model 747 Series Airplanes |
| aircraft | The Boeing Company | 747-400D Series | Airworthiness Directives; BOEING Model 747 Series Airplanes |
| aircraft | The Boeing Company | 747-400F Series | Airworthiness Directives; BOEING Model 747 Series Airplanes |
Unsafe Condition
Failure of the body station (BS) 1241 bulkhead forging could lead to loss of cabin pressure or inability to withstand fail-safe loads.
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Required Actions
Perform eddy current and visual inspections of the BS 1241 bulkhead splice strap at specified intervals, repair cracks prior to further flight, and replace straps per service bulletin if cracks are found in unmodified straps. Inspections and modifications must follow Boeing Service Bulletin 747-53-2283, Revision 3.
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Compliance Time
Required as indicated, unless accomplished previously.
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Affected Aircraft
Boeing Model 747 airplanes listed in Boeing Service Bulletin 747-53-2283, Revision 3, dated November 1, 1989, 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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