What was found
AT D CK, RIGHT WING I/B FLAP, MID FLPA OUTER TRAILING EDGE AREA HAS FIBERGLASS REPAIR AND VERY ROUGH ABOUT 4 FT FROM I/B END. INSTALLED FILLER REPAIR AT RIGHT WING I/B FLAP PER BOEING SRM 51-40-1, FIG 1. MATERIAL USED; EPIBOND 1526A/B, SIZE OF REPAIR 4 BY 20. REF: N/R 2906.