Yep, and by NTSB 830, none of them WERE reportable:I know of an Eggenfeller Subaru equipped HBA that had a new engine fail (the core engine, not the PSRU) within the first three hours of flight, followed by another new engine, not the failed one rebuilt, that failed within its first ten hours of flight. Neither resulted IN damage to the airframe (both occurred over airports) and neither was reported to the FAA.
"Engine failure or damage limited to an engine if only one engine fails or is damaged, [is]... not considered "substantial damage" for the purpose of this part.
I, too, have known several cases where the incident wasn't reported to the FAA. A couple of them DID meet the reporting criteria, but the owner was too feisty/fast and got the residue hidden before the feds got involved.
My philosophy is that these are, probably, generally evenly spread among the aircraft and engines of the homebuilt world. True, a CH-701 is much more likely to be able to set down without damage after an engine failure than a Lancair IV, but I think the generalization will hold. And, of course, it affects homebuilts with production-type engines as well.