AD Amdt-39-16906
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; Thielert Aircraft Engines GmbH Reciprocating Engines |
Unsafe Condition
Engine in-flight shutdown, possibly resulting in reduced control of the aircraft.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace the existing rail pressure control valve with an improved valve. Modify the Vrail plug by removing existing sealings and installing new ones. Guidance is provided in Thielert Repair Manuals.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 100 flight hours for TAE 125-02-99 engines, or within 600 flight hours for TAE 125-01 engines, whichever occurs later.
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Affected Aircraft
Thielert Aircraft Engines GmbH models TAE 125-01 and TAE 125-02-99 reciprocating engines.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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