As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE AC WAS IN FOR HEAVY CHECK FOUND WASTE SERVICE DOOR INT AND EXT SKIN CORROSION. REPLACED SERVICE DOOR PN 170-86668-403, IAW AMM 20-10-01, FOR DETAILS OF WORK PERFORMED SEE AAR NRC 45000827-1000-0005. AC REMAINS IN YQG FOR COMPLETION.