I do not do major airframe repairs here on site, however I work closely with a local A&P that is very good and he is familiar with Challenger. We can do any type of repair such as structural damage, recovering, etc. Please contact me for pricing. Rotax: I am an authorized Rotax Repair Station serving all of Ohio. I am an ASE certified gasoline and diesel technician by trade, as well as being Rotax factory trained and certified and I personally do all of the Rotax repairs myself. I do all types of repairs, inspections, and overhauls of all Rotax two stroke engines. Currently I do not work on the four stroke models.  The basic rate for a rebuild of any air-cooled two stroke Rotax is $350 labor, and $450 for liquid cooled models if the engine is not locked up. Gearbox removal inspection and reassembly is an additional $50. If the prop shaft requires removal, that is extra, but that is unusual. If the engine is locked up, extra labor may apply. All parts will be priced at current list price, the same as you buy them anywhere else. All engines overhauled to Rotax specs will carry a 90 day, 100 hour warranty. This covers parts and labor of any defect in parts or workmanship. In some cases engines may be reassembled with parts that are out of spec if the owner of the engine is aware of the situation and makes the decision to do that, but the warranty will not apply. Please be advised that if you choose to fly a Rotax engine that is out of spec, you do so at your own risk. In any case, once an engine is taken apart and all parts inspected and measured, the owner will be called with an explanation of what needs done, and pricing before work is completed. Basic rate for additional work is $35 hr.