ASB_A-2026-001R00
ALERT SERVICE BULLETIN
Inspection of the propeller gearbox for ROTAX® 912, 914 and 912i (Series) Aircraft Engines
ATA System: 72-10-00 Fuel system
ROTAX has issued a mandatory Alert Service Bulletin (ASB-2026-001R00, dated 22 June 2026) requiring a propeller gearbox inspection on certain 912, 914, and 912 i Series engines. The issue involves screws and an oil spray nozzle that may have been omitted during factory assembly, which can lead to oil loss and potential in-flight engine shutdown.
Step 1 – Check your engine model
Affected series: 912UL/ULS/iS Sport, 914UL (ASTM) and 912A/F/S/iSc Sport, 914F (Certified). If your engine is not one of these, no action is needed.
Step 2 – Check your serial number
The attached bulletin contains the full list of affected serial numbers. Search the PDF for your engine serial number. If not found, your engine is not affected.
Step 3 – If your engine serial number is listed
Complete the online Customer Service Information Report on www.FlyRotax.com -> https://www.flyrotax.com/p/service/customer-service-information-report
You will be contacted with further instructions.
The inspection must be completed before the next flight (engines under 25 hrs) or within the next 5 hours of operation (engines over 25 hrs), and no later than 22 June 2027. Follow our Warranty Guidelines as attached and ensure that work is carried out by an Authorised repair Centre and/or a qualified iRMT-rated technician.
The attached ROTAX Alert Service Bulletin is the authoritative document for all technical procedures and compliance requirements.
