AD 95-20-05
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 inboard strut-to-diagonal brace attach fittings due to cracking, which could result in separation of an engine from the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Perform visual inspections of the forward lower diagonal brace fittings of the inboard pylon to detect cracking, in accordance with Boeing Service Bulletin 747-54-2062, Revision 7. Additional high frequency eddy current inspections may be required in areas beyond the existing AD specifications. Replace or repair cracked fittings as necessary. Operators may opt for a terminating action by replacing aluminum fittings with steel ones per the service bulletin.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Prior to the accumulation of 5,000 total landings or within 500 hours time-in-service after September 4, 1979, whichever occurs later.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Boeing Model 747 series airplanes listed in Boeing Service Bulletin 747-54-2062, Revision 7, including 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, and other series as specified.
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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