As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TROUBLESHOOTING FOR A PRESSURIZATION PROBLEM A 2 INCH CRACK WAS FOUND ON A FRAME ON THE FORWARD SIDE OF THE NR 3 AFT CARGO DOOR ASSEMBLY. REMOVED AND REPLACED THE NR 3 LOWER AFT CARGO DOOR ASSEMBLY. OPERATIONALLY CHECKS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE. (M)