What was found
DURING ROUTINE C CHECK, FOUND EXTERNAL FUSELAGE FORWARD BULKHEAD UPPER WEB CRACKED AT STATION -165 BETWEEN +X17 AND +Z23. REMOVED DAMAGED AREA. FABRICATED DOUBLER, LOCATED, DRILLED, TRIMMED, TREATED, PRIMED, INSTALLED DOUBLER, AND FASTENERS AT STATION -165 FROM +X17 TO +Z23. IAW SRM 53-2-0, 51-1-21, 51-1-5, AND 51-1-8.