AD 2013-13-16
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | A330-200 and -300 | Airworthiness Directives; Airbus Airplanes |
Unsafe Condition
Disconnection of the transfer tube from the ball nut of the trimmable horizontal stabilizer actuator (THSA), caused by water ingress leading to jamming of the ball transfer circuit when water freezes.
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Required Actions
Inspect the integrity of the primary and secondary load path, and the Checkable Shear Pins (CSPs) for certain airplanes. Lubricate specified THSA part numbers. Replace THSA if cracks, dents, or corrosion are found, or if the feeler gage has failed at any of the four gaps. Use an approved method for finding metallic debris, loose nut, damaged or missing lock washers, pins, and parts, or incorrect installation of items.
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Compliance Time
Before further flight
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Affected Aircraft
All Airbus Model A330-200 and -300 series airplanes, and Model A340-200 and -300 series airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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