What was found
PHL - CREW REPORTED SMOKE IN THE CABIN. EMERGENCY DECLARED FLIGHT LANDED PHL WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED LEFT AND RIGHT PRESSURE REGULATING AND SHUT-OFF VALVES. SYSTEM GROUND CHECK NORMAL OPERATION.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PHL - CREW REPORTED SMOKE IN THE CABIN. EMERGENCY DECLARED FLIGHT LANDED PHL WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED LEFT AND RIGHT PRESSURE REGULATING AND SHUT-OFF VALVES. SYSTEM GROUND CHECK NORMAL OPERATION.