I have a G36 with the TAT Whirlwind III STC. Currently I am doing the annual inspection and, as part of it, the engine was borescoped yesterday, finding some cracks in cylinder 6 (please see attached pictures). The airplane is located in Chile, where borescopes are a new thing, thus this is the first time that I have inside pictures of the cylinders. I would like to ask about which options I have, other than replace the entire cylinder, and how bad the crack is (I don’t have any experience with boroscopes and cracked cylinders)
The engine has around 1370 hours SN and around 400 from top overhaul with millenium cilinders. All the others cylinders looked Good and compressions are ok.
Thanks in advance,