SB on Engine and Gear Box hardness

That is odd.  When I first looked at it, the list was there.  I didn’t download a copy of the SB as my engine wasn’t in the serial number range so I wasn’t worried about it.  I wonder if they are finding more engines are affected and they are expanding the list?

I finally found it. 

Where did you rind it?

The very first post on this subject says : 

1. Check Your Engine Serial Number:

Locate your engine’s serial number and verify whether it falls within the affected ranges listed in the Appendix section of the Certified Service Bulletin (See below)  (Only the certified service bulletin contains the affected engine serial numbers!!)

See  https://www.rotax-owner.com/en/general-tech-discussion/10804-mandatory-inspection-and-or-replacement-of-the-crankcase-and-or-gearbox-housing-for-rotax-engine-types-912-is-915-is-and-916-is-fuel-injected-engines

(the certified bulletin is attached at the bottom of that post)