As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT HAD ALTITUDE WARNING HORN. MADE AN EMERGENCY DESCENT TO 10,000 FEET. STANDBY CABIN PRESSURE WAS SELECTED. FLIGHT CONTINUED ON TO JAX. *S/D* NO PROBABLE CAUSE WAS DETECTED. A PRESSURIZATION CONTROL TEST WAS ACCOMPLISHED AND SYSTEM CHECKED OUT OK.