Rotax 915IS — Airworthiness Directives & known issues
The Rotax 915IS is installed on 387 registered aircraft. These are the Airworthiness Directives that apply to the engine family — whichever airframe it’s bolted to.
Engine ADs for the Rotax 915IS
- one-timeAD 2026-04280 — Airworthiness Directives; BRP-Rotax GmbH & Co KG (Formerly BRP-POWERTRAIN GMBH & CO KG and Bombardier-Rotax GmbH) Engines
The FAA is adopting a new airworthiness directive (AD) for all BRP-Rotax GmbH & Co KG (Rotax) Model 915 iSc2 C24 and 915 iSc3 C24 engines. This AD was prompted by a report of a certain collar nut that was not installed on the propeller gearbox. This AD requires a visual inspectio…
Exact applicability (by engine serial and installed parts) and compliance come from the aircraft’s engine logs.
Tailplate reads a tail number’s logbooks — engine ADs matched to compliance, time since overhaul vs TBO, and the whole records picture.
Look up a tail number →Applicability is derived from the FAA directive corpus and is advisory, not a legal airworthiness determination.