What was found
YYC - DURING C3 CHECK, RIGHT ENGINE RIGHT LOWER MID CORE COWLING FIRE SHIELD LAYER IS TORN AND DISBONDED. REPAIRED IAW EA R-54-84.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
YYC - DURING C3 CHECK, RIGHT ENGINE RIGHT LOWER MID CORE COWLING FIRE SHIELD LAYER IS TORN AND DISBONDED. REPAIRED IAW EA R-54-84.