As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING SCHEDULED C-1 CHECK WHILE PERFORMING OTHER MAINTENANCE, FOUND THE AFT FUSELAGE FS968 UPPER BULKHEAD TO FORWARD INTERCOSTAL BEAM FITTING CRACKED. BL0, WL285. REPAIR BY REPLACEMENT ACCOMPLISHED IAW SRM, CH. 51-60 & 51-70. NR# 6353.