AD 2005-01-13
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 767-300 | Airworthiness Directives; Boeing Model 767-300 Series Airplanes |
Unsafe Condition
Mineral build-up on the auxiliary power unit (APU) and engine fire shutoff switches could lead to the switches failing to discharge fire suppressant to the affected fire zone, resulting in an uncontrolled engine or APU fire and consequent loss of the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Repetitive functional tests and repetitive replacements of the APU and engine fire shutoff switches are required. Operators may deactivate the Lucas flight deck humidifier as an optional terminating action, but all APU and engine fire shutoff switches must be replaced with new or serviceable switches before further flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 18 months since the date of issuance of the original Airworthiness Certificate or the original Export Certificate of Airworthiness.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Boeing Model 767-300 series airplanes.
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.