AD 98-06-29
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 747-400 Series | Airworthiness Directives; Boeing Model 747-400 Series Airplanes |
| aircraft | The Boeing Company | 747-400D Series | Airworthiness Directives; Boeing Model 747-400 Series Airplanes |
| aircraft | The Boeing Company | 747-400F Series | Airworthiness Directives; Boeing Model 747-400 Series Airplanes |
Unsafe Condition
Chafing of the galley power feeder and static ground wiring on passenger oxygen system tubing in the forward ceiling area above the Door 4 galley, which could result in a fire.
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Required Actions
Perform a one-time inspection of the separation between the galary power feeder and static ground wiring and the adjacent passenger oxygen system tubing. If separation is outside specified limits, reroute the wiring, and install clamps and sleeves as per Boeing Alert Service Bulletin 747-25A3137.
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Compliance Time
Within 18 months after the effective date of this AD
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Affected Aircraft
Boeing Model 747-400 Series airplanes as listed in Boeing Alert Service Bulletin 747-25A3137 dated March 13, 1997, 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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