AD 2013-15-19
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Rotax | Reciprocating | Airworthiness Directives; BRP-Powertrain GmbH & Co KG Rotax Reciprocating Engines |
Unsafe Condition
Cylinder heads not manufactured to proper specification may lead to excessive oil consumption, which could result in an in-flight engine shutdown, forced landing, and damage to the airplane.
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Required Actions
Perform a one-time visual inspection of the center and grounding electrodes of both top and bottom spark plugs on cylinder No. 2 and No. 3 for unusual deposits. Replace any cylinder heads not manufactured to proper specification before further flight.
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Compliance Time
Before further flight
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Affected Aircraft
BRP-Powertrain GmbH & Co KG Rotax reciprocating engines: Rotax 912F (S/N 4,413.013 to 4,413.019), Rotax 912S (S/N 4,924.468 to 4,924.543), and Rotax 914F (S/N 4,421.156 to 4,421.177).
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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