AD 86-16-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 747-100 Series | BOEING Model 747 Airplanes |
| aircraft | The Boeing Company | 747-100B Series | BOEING Model 747 Airplanes |
| aircraft | The Boeing Company | 747-100B SUD Series | BOEING Model 747 Airplanes |
| aircraft | The Boeing Company | 747-200B Series | BOEING Model 747 Airplanes |
| aircraft | The Boeing Company | 747-200C Series | BOEING Model 747 Airplanes |
| aircraft | The Boeing Company | 747-200F Series | BOEING Model 747 Airplanes |
| aircraft | The Boeing Company | 747-300 Series | BOEING Model 747 Airplanes |
| aircraft | The Boeing Company | 747-400 Series | BOEING Model 747 Airplanes |
| aircraft | The Boeing Company | 747-400D Series | BOEING Model 747 Airplanes |
| aircraft | The Boeing Company | 747-400F Series | BOEING Model 747 Airplanes |
Unsafe Condition
Defective self-locking nuts in the escape slide inflation system could fail to secure properly, leading to escape slide inoperability.
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Required Actions
Within three months after the effective date, inspect the escape slide inflation system to verify installation of acceptable self-locking nuts and replace defective nuts as required per Boeing Alert Service Bulletin 747-25A2696, Revision 2, or later FAA-approved revisions.
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Compliance Time
Within three months after the effective date of this AD
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Affected Aircraft
All Model 747 airplanes certificated in any category, listed in Boeing Alert Service Bulletin 747-25A2696, Revision 1, dated January 31, 1986, equipped with cool gas generator inflation systems.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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