As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - CREW REPORTED ELECTRICAL SMOKE ODOR IN COCKPIT AND CABIN DURING CLIMB. EMERGENCY DECLARED FLIGHT RETURNED DFW LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED LEFT AND RIGHT PRESSURE REGULATORS AND SHUTOFF VALVE. SYSTEM GROUND CHECK NORMAL OPERATION.