As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE ACFT WAS IN FOR HEAVY CHECK. MAINTENANCE REPORTED THE LT APU ACCESS DOOR OUTER SKIN WAS DAMAGED, CREASED). MAINTENANCE PERFORMED A "MAJOR" REPAIR TO THE LT APU ACCESS DOOR OUTER SKIN IAW RD 8/4-52-1417. MATERIAL USED FROM PO 4920, MIL-T-9046 AT .032.