As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CYLINDER #3 WAS LEAKING OIL. UPON FURTHER INVESTIGATION, IT WAS DISCOVERED THAT THE CYLINDER WAS CRACKED. THE CRACK WAS DISCOVERED IN THE CROSSFLOW AREA THAT WAS BLENDED AS PER AD 2020-16-11. AD 2020-16-11 WAS ACCOMPLISHED ON THIS ENGINE ON 9/25/2020.