What was found
DURING ROUTINE C CHECK, FOUND EXTERNAL FUSELAGE SKIN CRACKED AT STATION 1748 LONGERON 10 RIGHT. REMOVED DAMAGED AREA. FABRICATED DOUBLER AND FILLER, LOCATED, DRILLED, TRIMMED, TREATED, PRIMED, AND INSTALLED FILLER AND DOUBLER IAW DC8 SRM 53-2-1, 51-1-8, AND 51-1-20D.