AD 97-08-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 747-100 Series | Airworthiness Directives; Boeing Model 747-100, -200, and -300 Series Airplanes |
| aircraft | The Boeing Company | 747-100B Series | Airworthiness Directives; Boeing Model 747-100, -200, and -300 Series Airplanes |
| aircraft | The Boeing Company | 747-100B SUD Series | Airworthiness Directives; Boeing Model 747-100, -200, and -300 Series Airplanes |
| aircraft | The Boeing Company | 747-200B Series | Airworthiness Directives; Boeing Model 747-100, -200, and -300 Series Airplanes |
| aircraft | The Boeing Company | 747-200C Series | Airworthiness Directives; Boeing Model 747-100, -200, and -300 Series Airplanes |
| aircraft | The Boeing Company | 747-200F Series | Airworthiness Directives; Boeing Model 747-100, -200, and -300 Series Airplanes |
| aircraft | The Boeing Company | 747-300 Series | Airworthiness Directives; Boeing Model 747-100, -200, and -300 Series Airplanes |
Unsafe Condition
Internal failure of switches S4, S5, S7, or S8 in the cabin attendant's panel at door 4 right and equivalent switches at door 2 right could short circuit, causing fire and smoke aboard the airplane.
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Required Actions
Replace switches S4 and/or S5 at door 4 right, and equivalent switches S7 and S8 at door 2 right, with new improved switches as specified in Boeing Alert Service Bulletin 747-33A2252 and Notice of Status Change 747-33A2252 NSC 01.
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Compliance Time
Required as indicated, unless accomplished previously.
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Affected Aircraft
Boeing Model 747-100, -200, and -300 series airplanes listed in Boeing Alert Service Bulletin 747-33A2252, as revised by Notice of Status Change 747-33A2252 NSC 01.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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