AD 2018-14-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | A330-200 Freighter | Airworthiness Directives; Airbus Airplanes |
Unsafe Condition
blocked vent pipes, in combination with a high level sensor failure, could lead to over-pressurization of the trim tank during refueling or aft fuel transfer, and consequent reduced control of the airplane.
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Required Actions
doing a trim tank overflow functional test, a general visual inspection of the aperture leading to the flame arrestors (NACA duct), a detailed inspection of the flame arrestor, and blockage removal or repair of any discrepant NACA duct.
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Compliance Time
Before further flight
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Affected Aircraft
Airbus Model A330-200 Freighter, A330-200, A330-300, A340-200, A340-300, A340-500, and A340-600 series airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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