AD 94-10-08
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
Failure of the engine bleed air crossover duct due to cracks or ruptures, which could result in loss of pneumatics and damage to adjacent structure.
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Required Actions
Conduct dye penetrant inspections and proof pressure testing of the crossover pneumatic duct. Repair or replace the duct if cracks or ruptures are found. Stress relieve the duct assembly as per Boeing Service Bulletin 767-36A0041, Revision 2.
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Compliance Time
Within 6 months after the effective date of this AD or prior to the accumulation of 7,000 total flight cycles, whichever occurs later (Option 1) or within 18 months after the effective date or prior to 7,000 total flight cycles (Option 2).
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Affected Aircraft
Boeing Model 767 series airplanes; line position 308 through 321, inclusive; certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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