AD 2015-09-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
Cracking in the main equipment center (MEC) drip shield and exhaust plenum, which could allow water penetration into the MEC, potentially resulting in an electrical short and loss of functions essential for safe flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install a fiberglass reinforcing overcoat on the MEC drip shield to prevent water penetration.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 24 months of the effective date (June 16, 2015).
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Affected Aircraft
The Boeing Company Model 747-400 and 747-400F series airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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