As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLIMBING THROUGH FL 210 CREW FELT A THUMP IN THE FORWARD CABIN AND SUBSEQUENTLY LOST CONTROL OF CABIN PRESSURE. OUTFLOW VALVE INDICATED FULL CLOSED BUT THE CABIN CONTINUED TO CLIMB THROUGH 10,500 FEET. FLIGHT CONTINUED TO DESTINATION AT THIS LOWER ALTITUDE AND LANDED WITHOUT INCIDENT AT MEM. MAINTENANCE FOUND A BROKEN CLAMP AND REPLACED IT. AIRCRAFT HAS RETURNED TO SERVICE.