As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU AIR INLET DOOR CUT OUT SUPPORT STRAP FOUND CORROSION BETWEEN BS 1790 - 1825, STRINGER 6R. APU AIR INLET DOOR CUT-OUT SUPPORT STRAP (ANGLE) CORROSION THRU FOUND OUT OF LIMIT AS PER SRM 51-10-02-0G REV 118.0 CORRODED SUPPORT STARP (ANGLE) REMOVED AND REPLACED WITH NEW ANGLE P/NO 148N3152-1 AS PER BEOING DWG NO: 148N3105 SHT 1 REV C. REPAIR CLASSIFIED AS MAJOR