What was found
DURING ROUTINE C-CHECK, REPLACE EXISTING FUSELAGE SKIN REPAIR LOCATED AT STATION 1686 LONGERON 35 RT DUE TO DTA REQUIREMENTS. REMOVED FASTENERS NEEDED TO PERFORM REPAIR. REMOVED EXISTING DOUBLER. REMOVED DAMAGE, FABRICATED REPAIR PARTS, LOCATED, DRILLED, TREATED, PRIMED, INSTALLED REPAIR PARTS AND FASTENERS. IAW EO COO-8-53-423-4.