AD 94-04-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron Aviation Inc. | 400A | Airworthiness Directives; Beech Model 400A Airplanes |
Unsafe Condition
Marginal engagement between the main wheel hubcap drive clip and the anti-skid wheel speed transducer could cause erroneous signals to the anti-skid control box, resulting in degradation or loss of braking performance.
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Required Actions
Replace existing left- and right-hand hubcaps on the main landing gear with new part number 140-03121-1, or rework existing hubcaps by adding a spacer and reidentifying them as part number 140-03121-1. Incorporate procedures into the FAA-approved maintenance program to inspect the transducer drive clip ensuring the gap does not exceed 0.20 inch each time a hubcap is removed.
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Compliance Time
Within 25 hours time-in-service or 30 days after the effective date of this AD, whichever occurs first.
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Affected Aircraft
Beech Model 400A airplanes; serial numbers RK-1 through RK-23 inclusive with BEECHCRAFT Kit No. 128-8001-1 S installed, and serial numbers RK-24 through RK-76 inclusive; certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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