philcam
Well Known Member
This one is going to be fun, and potentially expensive.....
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New Rotax 912 i crankcase and gearbox service bulletin
- Thread starter philcam
- Start date
Certainly @philcam; however, affected 912iS engines seem extremely recent (I have SN #7706581 in 2024 Sling LSA); lowest SN is 10002835 and highest is 10007483, if yours falls outside of that range you "should" be fine; check the SB yourself, though.
A total of 966 engines of type 912iS are effected.
Rv-12David
Active Member
Would someone please point me at the affected serial number list please. I can’t seem to locate it. My serial number is just slightly highs than Rot’s. Hopefully it’s ok.
My S/N was not listed in this Service Bulletin, however, I was effected with the previous two. Advanced Powerplant Solutions (former Leading Edge Airfoils) in Wisconsin did the inspections and both failed. The stator nozzle was replaced and retested. Waiting for the new expansion tank.
Rv-12David
Active Member
Thanks CTCole for posting the list. I guess we’ll all be waiting to see if Rotax puts up a list of non certified numbers.
Thanks Chris - I thought I was going to be included based on the first iteration of the SB, but the one you posted has a gap of about a hundred numbers that aren’t affected, and mine is one of those! Relieved………
Never been so glad that I added the Rotax Care option to my PP kit order!
Looks like it is fairly easy to do the testing for this SB assuming you have the proper testing tools which may become a bottleneck. Will be interesting to see what percentage of those tested end up failing.
Looks like it is fairly easy to do the testing for this SB assuming you have the proper testing tools which may become a bottleneck. Will be interesting to see what percentage of those tested end up failing.
I read here
that you must check both engine serial number (Criterion A) and spare parts numbers (Criterion B) for block, gearbox / cover part numbers.
My engine serial number is not affected, but gearbox part number is.
Recommend everyone check the full compliance requirements.
Steve
that you must check both engine serial number (Criterion A) and spare parts numbers (Criterion B) for block, gearbox / cover part numbers.
My engine serial number is not affected, but gearbox part number is.
Recommend everyone check the full compliance requirements.
Steve
I am in the same boat in regards to part numbers but as I read the SB:
_________________________________________________________________________________________________
Further, all engines are affected which have been equipped with the following part no.:
______________________________________________________________________________________________________
The last line is critical as I have had no repair, maintenance or general overhaul. It was hard to catch as the last line is on the next page.
Henry
_________________________________________________________________________________________________
Further, all engines are affected which have been equipped with the following part no.:
- - 893246
- - 893249
- - 300091210
- - 300091501
- - 811954
- - 610362
- - 893341
- - 893346
- - 911988
- - 686790
- - 686810
- - 893868
- - 886078
______________________________________________________________________________________________________
The last line is critical as I have had no repair, maintenance or general overhaul. It was hard to catch as the last line is on the next page.
Henry
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The way the SB is worded, it sounds like the block, gearbox, etc. part numbers criterion only applies to engines that have had any of those parts previously replaced. Interpretation is a little murky.
Henry - you beat me to it.
The Appendix of the SB for certified versions includes the SNs for both certified and non-certified engines. Certified engines are designated with a lower case "c" in the model name (e.g. 912iSc). So if your engine is not on that list, you're clear.
Rotax does not help us by splitting the SB into certified and non-certified versions, and then listing the affected SNs only in the certified version -- but the list of affected engines does include non-certified engines. They could have made this more clear, for sure. This snip of the top of the list shows 2 non-certified engines, followed by 2 certified engines
I continue to wonder what the heck is going on at the Rotax plant??
