AD 2011-20-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | A300 | Airworthiness Directives; Airbus Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Airbus Airplanes |
Unsafe Condition
A recent analysis showed a particular risk for explosive failure of the old design hydraulic accumulator. This could lead to damage to all three hydraulic circuits, possibly resulting in loss of control of the airplane, or an undetected fire in the wheel bay.
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Required Actions
Perform a detailed visual inspection of each type 5 hydraulic accumulator to identify old designed accumulators. Replace those accumulators with new designed accumulators. Install warning placards to avoid future installation of old designed accumulators.
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Compliance Time
Within 30 months or 6,000 flight hours after the effective date, whichever occurs first.
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Affected Aircraft
Airbus Model A300 series airplanes; Model A310 series airplanes; and Model A300 B4-600, B4-600R, and F4-600R series airplanes, and Model C4-605R Variant F airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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