What was found
DURING ROUTINE C CHECK, FOUND "D" PIT DOOR INBOARD WEB DOUBLER CRACKED. REMOVED EXISTING DOUBLER. FABRICATED REPAIR PARTS, LOCATED, DRILLED, TRIMMED, TREATED, PRIMED, AND INSTALLED REPAIR PARTS. IAW DC8 SRM 53-2-0, 51-1-8, 51-1-20D, AND 53-2-0.