As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CABIN DEPRESSURIZED DURING DECENT AT FL 230 CABIN ALTITUDE REACH 12,100. UNCOMMANDED. PRESS CONTROL AUTO MANUAL. FOUND LOWER DOOR SEAL OF BAG BAY DOOR MISSING. INSTALLED BAG BAY DOOR SEAL IN REF TO AMM 52-30-02-400-801-A. OPS AND LEAK CHECK GOOD. CLEAR MEL. CHANGE OUTFLOW VALVE FILTER DUE TO PRESSURIZATION HISTORY. REMOVED AND REPLACED AIR FILTER ELEMENT IN REFERENCE TO AMM 21-31-08-960-801-A. OK FOR SERVICE.