What was found
AFT FUSELAGE CUTOUT FOR APU INTAKE DOOR HOUSING FLANGES ARE CORRODED. REMOVED CORROSION IAW SRM 51-10- 02. OUT OF LIMITS PER SRM 53-80-05, FIG 101, DETAIL 5 AND SRM 53-80-01, FIG 101, DETAIL 3. FABRICATED UPPER FLANGE ON MAE TRAVELER NR T9/782221, LWR FLANGE ON T9/782190, FWD FLANGE ON T9/782222, AFT FLANGE ON T9/783339. LOCATED AND DRILLED FABBED PARTS IAW SRM 51-40-05. TREATED AND PRIMED PARTS IAW SRM 51-20-01. REMOVED & REINSTALLED PANEL SUPPORT, SUPPORT ANGLE, SKIN FASTENERS & FAIRING FOM IAW SRM 51-40-02. R & R FLANGES IAW SRM 51-40-02. THIS REPAIR IS CLASSIFIED AS A CAT. 'A" MAJOR REPAIR.