AD 90-05-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 767-200 Series | Airworthiness Directives; BOEING Model 767 Series Airplanes |
| aircraft | The Boeing Company | 767-300 Series | Airworthiness Directives; BOEING Model 767 Series Airplanes |
| aircraft | The Boeing Company | 767-300F Series | Airworthiness Directives; BOEING Model 767 Series Airplanes |
Unsafe Condition
False engine fire and overheat warnings could result in unnecessary engine in-flight shutdowns and airplane diversions that unduly jeopardize continued safe operation of the airplane.
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Required Actions
Modify the engine fire and overheat detection system on each engine in accordance with Boeing Service Bulletin 767-26-0037, Revision 1, dated June 1, 1989. Alternate means of compliance or adjustment of compliance time may be used if approved by the Manager, Seattle Aircraft Certification Office.
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Compliance Time
within 6 months after the effective date of the AD
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Affected Aircraft
BOEING Model 767 series airplanes equipped with Kidde engine fire and overheat detection systems as listed in Boeing Service Bulletin 767-26-0037, Revision 1, dated June 1, 1989.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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