As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLL FLT 921 EN-ROUTE AUA TO PHL. DURING CRUISE, THE COCKPIT CREW OBSERVED A CABIN ALTITUDE WARNING. THE FLIGHT DESCENDED DOWN TO 10,000 FEET AND DIVERTED TO FLL. THE FLIGHT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED A CABIN ALTITUDE WARNING SWITCH.