AD 95-18-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 757-200 Series | Airworthiness Directives; Boeing Model 757 and 767 Series Airplanes |
| aircraft | The Boeing Company | 757-200CB Series | Airworthiness Directives; Boeing Model 757 and 767 Series Airplanes |
| aircraft | The Boeing Company | 757-200PF Series | Airworthiness Directives; Boeing Model 757 and 767 Series Airplanes |
| aircraft | The Boeing Company | 757-300 Series | Airworthiness Directives; Boeing Model 757 and 767 Series Airplanes |
| aircraft | The Boeing Company | 767-200 Series | Airworthiness Directives; Boeing Model 757 and 767 Series Airplanes |
| aircraft | The Boeing Company | 767-300 Series | Airworthiness Directives; Boeing Model 757 and 767 Series Airplanes |
| aircraft | The Boeing Company | 767-300F Series | Airworthiness Directives; Boeing Model 757 and 767 Series Airplanes |
Unsafe Condition
Cracking of the hydraulic pressure transfer tube of the ram air turbine (RAT) system due to overload caused by mishandling or improper installation during in-service RAT maintenance. This could lead to loss of hydraulic fluid and inability of the RAT to pressurize the center system, potentially resulting in loss of all hydraulic system power if both engines lose power.
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Required Actions
Replace the hydraulic pressure transfer tube of the RAT system with a new hose assembly as specified in Boeing Alert Service Bulletin 767-29A0077, Revision 1, and associated Sundstrand service bulletins. Compliance must be achieved within the compliance time specified in the AD.
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Compliance Time
within the compliance period specified in the AD, which is 24 months from the effective date of this AD (October 10, 1995).
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Affected Aircraft
Boeing Model 757-200, 757-200CB, 757-200PF, 757-300, 767-200, and 767-300 series airplanes, excluding serial number 565 for Model 767 series.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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