What was found
INSPECTION TYPE: C, CENTER E&E COMPT DOOR RT SIDE CUTOUT FOUND CORROSION AT BS 800-820 S46R-S47R. CORROSION REMOVED IAW SRM 51-10-01. CORROSION BLEND OUT THROUGH THK, WIDTH 1.5 INCH, LENGTH 4.75 INCH EXCEED SRM 53-30-01 FIG 1 LIMITS FOR REPAIR REF RS R53-21-35091 & UPS EO B747-5330-19424-A. CIC APPLIED. NOTE: POST REPAIR INSPECTION IS REQUIRED. INITIAL INSPECTION THRESHOLD AT 10000 FLIGHTS WITH REPEAT INSPECTION EVERY 3000 FLIGHTS USING LFEC METHOD.