AD 2013-05-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
Stiff operation of the elevator pitch control system and jammed elevator controls due to moisture collecting and freezing on the elevator control system components, which could limit the ability of the flightcrew to make elevator control inputs and result in reduced controllability of the airplane.
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Required Actions
Replace pressure seal assemblies; perform repetitive inspections for dirt, loose particles, or blockage of the flanged tube and drain hole for the pressure seals, and take corrective action if necessary; replace the aft air-intake duct assembly with a new or modified assembly and install a dripshield; install gutters on the horizontal stabilizer center section and modify the side brace fittings.
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Compliance Time
Within 24 months for airplanes on which Boeing Service Bulletin 767-27A0219 has been done as of the effective date of this AD. Other compliance times are not specified.
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Affected Aircraft
The Boeing Company Model 767 airplanes, as specified in the AD, with certain configurations and service bulletins as detailed in the AD text.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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