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ROTAX® Service Bulletins – Inspection of the Propeller Gearbox

2 Dec 2025

Inspection of the propeller gearbox of ROTAX® 915 i and 916 i(Series) Aircraft Engines

ROTAX has issued new Service Bulletins regarding the inspection of the propeller gearbox on ROTAX® 915 i and 916 i (Series) aircraft engines.


These bulletins below outline the required inspection procedures, affected serial numbers, and any necessary corrective actions.


·       ASB-915 i-021R1 / ASB-916 i-009R1

·       ASB-915 i-021iS R1 / ASB-916 i-009iS R1


Compliance with these bulletins is important to ensure continued airworthiness and safe operation of your aircraft.



Light Aircraft Association Ltd, Turweston Aerodrome, Nr Brackley, Northamptonshire, NN13 5YD

Registered in England & Wales

Company No: 00606312

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