AD 92-16-14
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron Aviation Inc. | 400A | BEECH Model 400A Series Airplanes |
Unsafe Condition
The phenolic honeycomb material of the flame arrestor filter (Beech part number 45A48235-3) could degrade, leading to fire and potential explosion of the fuselage fuel tanks.
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Required Actions
Conduct a one-time visual inspection of the flame arrestor filter to determine material composition. Replace phenolic honeycomb filters with part number 45A48235-5 or confirmed aluminum 45A48235-3. Prohibit installation of phenolic honeycomb filters.
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Compliance Time
Within 14 days after the effective date of this AD, and prior to further flight if phenolic material is found.
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Affected Aircraft
BEECH Model 400A series airplanes with serial numbers RK-1 through RK-28, 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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