Summary
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 inspection of the propeller gearbox to determine if a collar nut is installed on the propeller shaft and, if not installed, replacement of the propeller gearbox with a serviceable propeller gearbox. The FAA is issuing this AD to address the unsafe condition on these products.
Directive Details
AD Number
FAA-2026-1321
Document Number
2026-04280
Type
Rule
Publication Date
March 4, 2026
Effective Date
March 19, 2026
Comments Close
April 20, 2026
Affected Manufacturer
BRP-Rotax GmbH & Co KG (Formerly BRP-POWERTRAIN GMBH & CO KG and Bombardier-Rotax GmbH)
Criticality
routine
Emergency
No
Docket ID
Docket No. FAA-2026-1321
Topics
Official Documents
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