AD 68-14-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 727-100 Series | BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-100C Series | BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-200 Series | BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-200F Series | BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727 Series | BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727C Series | BOEING Model 727 Series Airplanes |
Unsafe Condition
The brazed joints at each end of the torque tube assembly (Boeing P/N 65-26921) in the main landing gear downlock actuating system may be defective, leading to failure of the downlock mechanism and potential collapse of the main landing gear.
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Required Actions
Install a torque tube assembly (Boeing P/N 65-26921) with brazed joints inspected per Boeing Alert Service Bulletin No. 32-160 or modified with special structural fasteners. Inspect replacement assemblies unless previously inspected or modified. Allow emergency operation with gear extended under FAR 21.87 if brazed joints are unacceptable.
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Compliance Time
within the next 250 hours time in service after the effective date of this AD
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Affected Aircraft
Boeing Model 727 Series Airplanes including 727-100, 727-100C, 727-200, 727-200F, 727 Series, and 727C Series
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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