What was found
DURING CLIMB CREW NOTICED A STRONG SMELL LIKE SOMETHING BURNING THROUGH OUT THE CABIN. RETURNED TO DFW AND LANDED WITHOUT INCIDENT. REPLACED THE PRESSURE REGULATOR VALVE ON LEFT PACK. SYSTEM CHECKED NORMAL OPERATION.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING CLIMB CREW NOTICED A STRONG SMELL LIKE SOMETHING BURNING THROUGH OUT THE CABIN. RETURNED TO DFW AND LANDED WITHOUT INCIDENT. REPLACED THE PRESSURE REGULATOR VALVE ON LEFT PACK. SYSTEM CHECKED NORMAL OPERATION.