As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IT HAS BEEN REPORTED THAT DURING PUSHBACK AND TAXI FOR TAKEOFF, THE CABIN PRESSURE INCREASED 8 PSID BEFORE THE FLIGHT CREW BECAME AWARE OF THE ABNORMAL PRESSURIZATION. THE CABIN CREW REPORTED PASSENGERS DIDN'T FEEL COMFORT. ONE FEMALE PASSENGER REQUIRED HOSPITAL TREATMENT FOR A EARDRUM BLEEDING. PRESSURE WAS NOT RELIEVED UNTIL THE ENGINES WERE SHUTDOWN.