As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOST CABIN PRESSURE ON DESCENT AT 7000 FEET. COULD NOT PRESSURIZE EVEN IN MANUAL. FLIGHT ATTENDANT NOTICED HISSING NOISE AT AFT AIR STAIRS DOOR. MANTENANCE INSPECTED ALL DOOR SEALS; CYCLED THE PASSENGER AND CARGO DOOR HANDLES; CLEANED AROUND THE AFT PASSENDER DOOR SEAL. MAINTENANCE PERFORMED AN OPERATIONAL CHECKS WITH ENGINES RUNNING. ALL CHECKS WERE GOOD. THE AIRCRAFT RETURNED TO SERVICE.