As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT NR 3690 - EWR-BTV - AT FL 190 ENCOUNTERED EXCESSIVE CABIN ALTITUDE, PERFORMED EMERGENCY DESCENT. MAINTENANCE REMOVED AND REPLACED FORWARD CARGO DOOR SEAL IAW ATR JIC 52-31-40 RAI 10000-002. OPS AND PRESSURE CHECKED GOOD. AIRCRAFT RETURNED TO SERVICE. (M)