As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SAN - FLT 736 - EN ROUTE SAN-DFW, IMMEDIATELY AFTER TAKEOFF CABIN BEGAN TO FILL UP WITH A BLUE HAZE/SMOKE. RAN EMERGENCY PROCEDURES AND RETURNED TO SAN. SMOKE FINALLY BEGAN TO DISSIPATE JUST PRIOR TO LANDING. SERVICED ACMS TO PROPER LEVEL. ACCOMPLISHED PACK BURN PER MM. NO SMOKE IN CABIN DURING PACK BURN. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)