What was found
DURING THE RECONTOUR OF THE DENT ON FWD FUSELAGE SKIN AT FR 1-2, STGR 12R-17R, THE MECHANIC WAS USING A RIVET GUN AND BUCKING BAR TO KNOCK OUT SOME FASTENERS TO GAIN ACCESS FOR THE RECONTOUR. DURING REMOVAL, THE BUCKING BAR CHATTERED ON THE SKIN CAUSING GOUGING ON THE INTERNAL SIDE OF THE SKIN. PERFORMED DOUBLER REPAIR ON FWD FUSELAGE SKIN AT FR 1-2, STGR 12R-17R REF ETD2026-170-010385 REV A. THIS REPAIR HAS NO SIGNIFICANT EFFECT ON WEIGHT OR BALANCE. AN EXTERNAL DET (DETAILED VISUAL INSPECTION) IS REQUIRED AT 4996 FC OR 6645 FH WHICHEVER OCCURS FIRST AND AN EXTERNAL LFEC (LOW FREQUENCY EDDY CURRENT) AT 20667 FC OR 27487 FH WHICHEVER OCCURS FIRST.