AD 2018-16-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
BMS 8-39 flexible urethane foam insulation in certain areas, which, if exposed to an ignition source, could cause an uncontrolled fire leading to loss of control of the airplane.
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Required Actions
Inspecting for BMS 8-39 flexible urethane foam insulation in the floor panel assemblies and the PDU cover assemblies, doing applicable on-condition actions, modifying certain dripshields, and replacing BMS 8-39 foam strips on certain dripshields with BMS 8-371 foam strips.
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Compliance Time
Within 50 flight hours
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Affected Aircraft
The Boeing Company Model 747-100, -100B, -100B SUD, -200B, -200C, -200F, -300, -400, -400D, 747SP, and 747SR, and 747-8 series airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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