AD 92-04-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 737-300 Series | Airworthiness Directives; BOEING Model 737-300, 737-400, and 737-500 Series Airplane |
| aircraft | The Boeing Company | 737-400 Series | Airworthiness Directives; BOEING Model 737-300, 737-400, and 737-500 Series Airplane |
| aircraft | The Boeing Company | 737-500 Series | Airworthiness Directives; BOEING Model 737-300, 737-400, and 737-500 Series Airplane |
Unsafe Condition
Damage to wire bundles above the cockpit-to-cabin door header frame due to chafing or interference with the door header frame, which could cause fire and smoke in the passenger cabin and cockpit.
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Required Actions
Within 20 days after the effective date, visually inspect wire bundles for damage and secure clamps. Repeat inspections every 120 days. Sleeve wire bundles with Expando PT or equivalent within 30 days and ensure 0.25 inch clearance from the door frame header.
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Compliance Time
Required as indicated, unless accomplished previously.
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Affected Aircraft
All Model 737-300, 737-400, and 737-500 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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