SUMMARY OF BULLETIN:
Alert Service Bulletin SB-912-051/SB-914-034 (including UL variant), Checking of Magnetic Plug on Rotax Engine Type 912/914 (series) engines has been amended by Rotax. The Alert status has been removed and the Engine serial number list for affected engines has been reduced to a more defined range. This new amended SB now also requires a detailed magnetic plug inspection at each mandatory oil change in accordance to the current engine maintenance schedule/checklist (found in the Line Maintenance Manual) for all affected engines.

Rotax-owner.com has released an Expanded Instruction Video and additional helpful documentation

SUMMARY OF BULLETIN:
Due to a slightly increased amount of irregularity in the form of material inclusions, some isolated problems were detected on the gear box gear set in the field. Such material inclusions in the area of the tooth base can lead to tooth breakage under severe operating conditions. Affected gear sets must be replaced.

Rotax-owner.com has released an Expanded Instruction Video and additional helpful documentation