AD 2012-17-12
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
Water leaking into electrical and electronic equipment in the main equipment center (MEC) through main deck panels, fasteners, and floor fittings, which could result in an electrical short and potential loss of several functions essential for safe flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Modify the floor panels; remove drains; install floor supports, floor drain trough doublers, drain troughs, and drains; and seal and tape the floor panels.
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Compliance Time
Before further flight
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Affected Aircraft
The Boeing Company Model 747-400 series airplanes, specifically affecting stations 210 and 530 for certain Model 747-400BCF and -400F airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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