As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CABIN ALT WARNING EICAS @ 330.AIRCRAFT TURNED BACK TO MIAMI AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE GROUNDED AIRCRAFT. MAINTENANCE REMOVED AND REPLACED AUTOMATIC CABIN PRESSURE CONTROLLER IAW B767 AMM 21-31-02. BITE TEST NORMAL. (CONTROLLER #2) PART EFFECTIVITY VERIFIED. A/C REMAINS ETOPS 180. AIRCRAFT RETURNED TO SERVICE