AD 2000-23-28

Recurring final rule
Data completeness: 70%

Airworthiness Directives; Boeing Model 777 Series Airplanes

AD Number
2000-23-28
Status
final_rule
Effective Date
Product Category
engine
Docket
Docket No. 99-NM-163-AD
FR Citation
65 FR 70787

Applicability

TypeManufacturerModelDetails
aircraft Boeing 777 Airworthiness Directives; Boeing Model 777 Series Airplanes

Unsafe Condition

Overheating of the engine fire shutoff switch (EFSS) solenoid and override mechanism, leading to their failure and consequent inability of the flightcrew to discharge the fire extinguishing agent in the event of an engine fire.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Inspect and test the EFSS solenoid and override mechanism to ensure operational status. Install a collar on circuit breaker C26612 of panel P310 of the standby power management panel if not already installed. Install placards near the EFSS of both engines and near the auxiliary power unit (APU) EFSS to advise the flightcrew to push in the override mechanism before pulling the fire switch.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

Within 14 days after May 27, 1997, or as indicated in the AD.

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

All Boeing Model 777 series airplanes, certificated in any category.

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

This site is not affiliated with or endorsed by the FAA. Always verify with official sources.

View Official Source ↗ Find More ADs for Boeing 777

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