What was found
RH WING HAS CRACK ON TRAILING EDGE UNDERSIDE ABOVE OUTBOARD FLAP ASSEMBLY AT WS4800 AS MARKED. REPAIRED CRACKED SECTION OF RT FLAP COVE SKIN. REMOVED 75MM X 25MM SECTION FROM INBOARD CRACKED AREA AND 90MM X 25MM SECTION FROM OUTBOARD CRACKED AREA. REMOVED RIVETS AS REQUIRED FROM UPPER FLAP COVE SKIN FOR ACCESS TO REPAIR AREA. FABRICATED FOR OUTER SECTION, FILLER PLATE AND REPAIR PLATE. FABRICATED FOR INBOARD SECTION, FILLER PLATE AND REPAIR PLATE. PLATES AND FILLERS FIT AND DRILLED TO REPAIR AREAS, ALL HOLES DIMPLED TO CLEARANCE REPAIR FROM FLAPS. ALL REPAIR PIECES ACID ETCHED, ALODINED, AND PRIMED WITH EPOXY PRIMER. INSTALLED REPAIR PLATES W/ MS20426AD RIVETS. REINSTALLED TOP COVE SKIN RIVETS PREVIOUSLY REMOVED WITH MS20426AD, AND CR3212 RIVETS AS REQUIRED FROM PREVIOUS INSTALLATION.