As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: PRESSURE UNCONTROLLABLE AFTER TAKE OFF. AIRCRAFT RETURN AND LANDED SAFELY AT MIA WITHOUT FURTHER INCIDENT. REMOVED AND REPLACED CABIN PRESSURE CONTROL PANEL AS PER AMM 21-31-02, TEST NORMAL NO FURTHER DEFECTS NOTED.