What was found
INSPECTION TYPE:C4 APU LIGHT HAS CORROSION AROUND THE AFT LWR NUT PLATE, 3RD NUT PLATE GOING FROM THE AFT LWR END OF CUTOUT. REQUIRES REMOVAL OF APU DUCTING AND APU INLET HOUSING. REMOVED, FABRICATED AND INSTALLED REPLACEMENT APU DOOR HOUSING MOUNT ANGLES PER SRM 51-40-02, SRM 53-00-03-1A1.