AD 92-16-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 767-200 Series | Airworthiness Directives; BOEING Model 767 Airplanes |
| aircraft | The Boeing Company | 767-300 Series | Airworthiness Directives; BOEING Model 767 Airplanes |
| aircraft | The Boeing Company | 767-300F Series | Airworthiness Directives; BOEING Model 767 Airplanes |
Unsafe Condition
Hydraulic fluid may enter the cabin due to insufficient clearance between the inboard leading edge slat power drive unit hydraulic pressure tube and the adjacent pneumatic duct, or due to chafing of the hydraulic tube or pneumatic duct.
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Required Actions
Inspect the inboard leading edge slat power drive unit hydraulic pressure tube for clearance and chafing within 3,000 flight hours after the AD's effective date. If clearance is ≤0.25 inch or chafing is found, replace both hydraulic pressure and return tubes prior to further flight. Repair the pneumatic duct if chafing is found. Replace the hydraulic return tube within 4,000 flight hours for airplanes with previously replaced hydraulic pressure tubes. Use approved service bulletins and seek alternative compliance via FAA if needed.
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Compliance Time
Within 3,000 flight hours after the effective date of this AD (for inspection) and within 4,000 flight hours after the effective date for replacement of hydraulic return tube on applicable airplanes. Immediate action required prior to further flight if clearance ≤0.25 inch or chafing is found.
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Affected Aircraft
BOEING Model 767-200 Series, 767-300 Series, 767-300F Series airplanes listed in Boeing Alert Service Bulletin 767-29A0064, Revision 1.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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