As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMPENNAGE, APU AIR INLET DOOR CUT OUT INNER STRAP FOUND CORRODED AT BS 1825, STRINGER 3 - 6R. AFTER APU AIR INLET DOOR HOUSING REMOVED. CORROSION REMOVED AND FOUND OUT OF LIMITS IAW SRM 53-80-15 TABLE 101 AD 1 REV 111 & REPAIRED IAW SRM 53-80-15 REPAIR 1 DETAIL II FIG 202REV 111 REPAIR CLASSIFIED AS MAJOR.