As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TPA TO DFW AT 30000 FEET, PRESSURE FLOW LIGHT ILLUMINATED. EMERGENCY DECLARED FOR DESCENT TO 10000 FEET. MASKS DID NOT DEPLOY. DIVERTED TO SHV AND LANDED WITHOUT INCIDENT. PLACARDED BOTH PACKS AND CONDUCTED UNPRESSURIZED FLIGHT TO DFW. REPLACED LEFT AIR CONDITIONING PITOT REGULATOR. SYSTEM GROUND CHECKED NORMAL OPERATION.