07/17/2026
📢 CASA-2026-07 concerning the application of sealant on Lycoming engine crankcase parting surfaces
Several customers have contacted us following the recent publication of this Civil Aviation Safety Alert by Transport Canada.
We would like to reassure everyone who has had their engine overhauled or assembled by Aero Atelier: our engines are built in accordance with the manufacturer’s applicable specifications and instructions, including the approved sealant and its proper application.
In other words, if your engine was done by Aero Atelier, you’re all good. ✅
Please note that our team is on vacation as of today, July 17, and the shop will be closed for our summer shutdown. We will be back on August 3 and will respond to your messages upon our return.
Have a great summer!
The Aero Atelier C.M. Inc. Team