As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DEFECT 780932: AIRCRAFT WOULD NOT PRESSURIZE - RESOLUTION: ON ARRIVAL FND L1 DOOR NOT FULLY CLOSED OPERATED L1 DOOR PER AMM 52-11-00 AND DOOR OPS NML. INSPECTED L-1 DOOR SEALS PER AMM 52-09-00 NO DEFECTS NOTED. SUSPECT DOOR WAS FALSE LATCHED. A/C OK FOR SERVICE. (DECLARED EMERGENCY)