What was found
FUSELAGE SKIN CRACKED 1.7500 IN LONG AT BS 767 BETWEEN STRINGER 15L AND 16L. TRIMMED OUT DAMAGE AREA TO MAINTAIN 0.5 IN MINIMUM RADIUS ON CUTOUT. PERFORMED A DETAILED VISUAL INSP ABOVE AND BELOW STRINGER 15L AND HFEC INSP AROUND CUTOUT AREA, NO DEFECTS NOTED. MADE A 0.04 IN INSURANCE CUT WITH 63 MICRO-INCHES RA FINISH ON ALL CUTOUT EDGES. FABRICATED A 0.032 INCH DOUBLER AND 0.50 INCH TRIPLER AND STRINGER AND FRAME FILLERS, MAINTAINING 0.5 INCH SHARP EDGES FROM SKIN AND ALL REPAIR PARTS. CLEANED, TREATED ALL EXPOSED AREAS WITH ALODINE AND BMS 10-11 TYPE 1 PRIMER. INSTALLED REPAIR PARTS AND FASTENERS WET WITH BMS 5-95 SEALANT. REPAIR COMPLETED IAW ECO, A/C RETURNED TO SERVICE.