AD 2007-06-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | A318 | Airworthiness Directives; Airbus Model A318, A319, A320, and A321 Airplanes |
Unsafe Condition
Failure of the THSA's primary load path, which could result in latent (undetected) loading and eventual failure of the THSA's secondary load path and consequent uncontrolled movement of the horizontal stabilizer and loss of control of the airplane.
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Required Actions
Perform detailed inspections of the upper and lower attachments of the trimmable horizontal stabilizer actuator (THSA) to measure for proper clearance and to detect cracks, damage, and metallic particles. Shorten the repetitive interval for inspecting the upper THSA attachment. Take corrective actions if necessary and report inspection findings.
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Compliance Time
Within 10 months for the upper THSA attachment inspections, and within 20 months since first flight of the airplane or within 600 flight hours after May 5, 2006, for the lower THSA attachment inspections.
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Affected Aircraft
All Airbus Model A318, A319, A320, and A321 airplanes, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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