What was found
LEFT APU DOOR INNER SKIN CORRODED JUST AFT OF 5TH FRAME FROM FORWARD END. REPAIRED IAW SRM 52-40-01 FIG 201 REPAIR 5. AIRCRAFT GROUNDED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
LEFT APU DOOR INNER SKIN CORRODED JUST AFT OF 5TH FRAME FROM FORWARD END. REPAIRED IAW SRM 52-40-01 FIG 201 REPAIR 5. AIRCRAFT GROUNDED.