AD 90-25-14
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 737-300 Series | Airworthiness Directives; BOEING Model 737-300, -400, and -500 Series Airplanes |
| aircraft | The Boeing Company | 737-400 Series | Airworthiness Directives; BOEING Model 737-300, -400, and -500 Series Airplanes |
| aircraft | The Boeing Company | 737-500 Series | Airworthiness Directives; BOEING Model 737-300, -400, and -500 Series Airplanes |
Unsafe Condition
Wire bundles above the overhead ceiling panels between fuselage stations 270 and 300 may have damage due to chafing or interference with ceiling panel bracketry and/or latch mechanisms, leading to fire and smoke in the passenger cabin and cockpit.
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Required Actions
Visually inspect wire bundles between fuselage stations 270 and 300 for damage due to chafing or interference. Repair damaged wires using Boeing Standard Wiring Practices and add Expando PT or equivalent protective sleeving per Boeing Service Letter 737-SL-24-58. Repeat inspections every 120 days.
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Compliance Time
Within the next 60 days after the effective date of this AD, and repeat inspections at intervals not to exceed 120 days.
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Affected Aircraft
BOEING Model 737-300, -400, and -500 Series airplanes, 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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