What was found
DURING C-CHECK, APU FIREWALL HAS SEVERAL CHAFE MARKS AT BOTTOM EDGE. MX REMOVED DAMAGED AREA ON APU FIREWALL BOTTOM EDGE IAW EC 5310-01339. ACFT APPROVED FOR RETURN TO SERVICE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING C-CHECK, APU FIREWALL HAS SEVERAL CHAFE MARKS AT BOTTOM EDGE. MX REMOVED DAMAGED AREA ON APU FIREWALL BOTTOM EDGE IAW EC 5310-01339. ACFT APPROVED FOR RETURN TO SERVICE.