AD 2019-21-12
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Rotax | 914 model | Airworthiness Directives; BRP-Rotax GmbH & Co KG Engines |
Unsafe Condition
A broken exhaust valve has been reported on a non-certified Rotax 914 UL2-01 engine. Subsequent investigation identified deviation in the manufacturing process of the affected exhaust valve. This condition, if not corrected, could lead to in-flight shut down, possibly resulting in a forced landing with consequent damage to the aeroplane and injury to occupants.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove from service certain exhaust valves and replace with a part eligible for installation within 10 flight hours or 3 months after the effective date of this AD, whichever occurs first.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 10 flight hours or 3 months after the effective date of this AD, whichever occurs first.
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Affected Aircraft
BRP-Rotax GmbH & Co KG (Rotax) 914 F2, 914 F3, and 914 F4 model engines.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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