AD 95-21-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | MD-11 | Airworthiness Directives; McDonnell Douglas Model MD-11 Series Airplanes |
| aircraft | The Boeing Company | MD-11F | Airworthiness Directives; McDonnell Douglas Model MD-11 Series Airplanes |
Unsafe Condition
Chafing and arcing of the vacuum waste exhaust port heater causing a spark to ignite surrounding insulation blankets.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect and modify the support structure of the cargo liner by trimming insulation blankets, removing baffle assemblies, and either deactivating the exhaust duct heater by removing wires from the terminal strip or making the circuit breaker inoperative until a new heater is installed.
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Compliance Time
Required as indicated, unless accomplished previously.
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Affected Aircraft
McDonnell Douglas Model MD-11 series airplanes listed in Alert Service Bulletin MD11-38A044 (dated March 22, 1995, and Revision 1 dated June 30, 1995) identified as 'Group 1 airplanes' with split heater cuffs installed per Service Bulletin 38-15 (October 23, 1992).
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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