Zenith Aircraft Builders and Flyers
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Rotax incident on Katana...
Reading the latest COPA paper and it had this interesting scenario regarding an Diamond Katana with a Rotax...
"A13P0167: A Diamond Katana DV20-A1 departed R12 at Boundary Bay, BC for circuits with one person on board. During the climb-out, the pilot noted an engine vibration (Rotax 912S3) and declared an emergency. The flight landed R25 with local emergency vehicles called out. The engine had been noted as having high oil consumption for some time. Factory examination determined that the #4 cylinder scraper piston ring for an 80 horsepower model had been installed in this 100 horsepower engine. The engine had never been overhauled!"
I'm trying to find out more about this incident but the full accident write-up is not available on the TC site as of yet. The summary leaves a lot out and I'm wondering if they figure this was a mistake made at the factory, or somebody did undocumented work on the #4 cylinder and goofed up? Lots of Rotax engines out there, and I'm just wondering if anyone had heard of this on other engines...?
Replies to This Discussion
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Permalink Reply by Bob McDonald on
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Careful about what COPA or Transport Canada report on their accident reports... sometimes there is little or no truth in them. Case in point when Transport & COPA declare numerous wing spar failures in the Bush Caddy design. It was in error but the damage was done. It wrongly punished the Bush Caddy company when the failures were associated with an early (different company) "Bush Cadi". They both published an apology... but the damage was done. It put Bush Caddy out of business.
I personally know of several Rotax 912 1500 hr TBO engines removed trouble free from Flight School Katana's with 2000+hr. They (with GA certified log books) are sitting on pallets in my friends hangar. The Rotax (early model) 912A (600 hr TBO) was removed from a Katana at 1200 hrs is still flying in my 2005 CH601HD with 1500 hrs on the HOBBS. My CH601HD is wrongly tarnished by the CH601XL spar issue .... totally different wing design..... but the tar still sticks !
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Permalink Reply by Mark Maltais on
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Hi Bob,
Yeah, that's why I'm curious and the COPA rag don't say much about it. I've never heard of this before on the Rotax which is why I'm guessing at maybe some undocumented repairs but it would be nice to know for sure. This obviously happened in 2013 and there are some later dated accident reports that are complete so why not this one??? I've also not been able to find any other similar type incident with the Rotax!
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