As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BNA - INFLIGHT DFW-LGA. CREW REPORTED PRESSURIZATION LOSS. MASKS DID NOT DEPLOY. EMERGENCY DECLARED, LANDED BNA WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED BOTH SECOND SEGMENT CLIMB PRESSURE SWITCHES. SYSTEM GROUND CHECK NORMAL OPERATION.