Federal Register #2026-22307

FAA airworthiness directive requires turbocharger valve housing replacement on specified BRP-Rotax engines

The Federal Aviation Administration issued an airworthiness directive for specified BRP-Rotax aircraft engines; this is a safety regulation, not a procurement opportunity. - Government buyer: U.S. Department of Transportation, Federal Aviation Administration (FAA). - OEM: BRP-Rotax GmbH & Co KG, also identified as BRP-Powertrain GmbH & Co KG and Bombardier-Rotax GmbH. - Affected engine models: 915 iSc2 C24, 915 iSc3 C24, 916 iSc2 C24, 916 iSc3 A, and 916 iSc3 C24. - Required actions: Replace the turbocharger valve housing and reidentify the turbocharger before further flight, following compliance material from the European Union Aviation Safety Agency (EASA). - Safety concern: Housing cracks may cause oil leakage, potentially resulting in smoke, an engine-compartment fire, an in-flight engine shutdown, or loss of aircraft control. - No quantities, part numbers, contract value, or purchased services are specified.

Description

The Federal Aviation Administration issued a final airworthiness directive for specified BRP-Rotax engine models. The directive addresses oil leakage caused by cracks in the turbocharger valve housing wall resulting from insufficient thickness. It requires replacing the turbocharger valve housing and reidentifying the turbocharger. The stated safety risks include smoke generation, an engine compartment fire, an in-flight engine shutdown, and possible loss of aircraft control.

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