As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CAB EXCESSIVE ALTITUDE ALERT IN CLIMB - NO OVERWEIGHT LDG -PER TSM 21-31-00-810-809 FOUND AFT CARGO DOOR SEAL IN PROPERLY INSTALLED. REMOVED AND PROPERLY INSTALLED AFT CARGO SEAL PER AMM 53-32-18. PERFORMED AIRCRAFT PRESSURIZATION PER AMM 05-53-00 NO LEAKS OR CHANGE ON CABIN ALTITUDE NOTED. A/C IS GOOD FOR SERVICE