AD Amdt-39-11251
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 777 | Airworthiness Directives; Boeing Model 777 Series Airplanes |
Unsafe Condition
Excessive wear on the safety spring wear plate doublers attached to the auxiliary power unit (APU) firewall could result in a hole in the APU firewall, leading to decreased fire protection capability.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the safety spring wear plate doublers attached to the APU firewall for wear. Measure the wear of the doublers. Take follow-on actions if necessary. For certain airplanes, perform a one-time inspection to detect improper clearance between the safety spring wear plate doubler and the APU firewall, and take corrective action if necessary.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the specified compliance time as outlined in the AD, which is not detailed in the provided text.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Boeing Model 777 series airplanes, with specific serial numbers and configurations as detailed in the AD.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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