As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION FWD BAY ON PRESS GUSSET AT BS 740 BL 0 WL 145, BETWEEN KEEL BEAMS. DISCOVERED WHILE WORKING FUSELAGE 00188 NR 0561. PRESS GUSSET AT BS 740 BL 0 WL 145 FOUND TO BE CORRODED BEYOND LIMITS, PER FEDEX SRM 55-10-1. REMOVED AND REPLACED PRESS GUSSET PER FEDEX SRM 51-30-2.