What was found
FLT 2806 - SNA-LAS - AIR TURNBACK, CREW UNABLE TO PRESSURIZE AIRCRAFT DURING TAKEOFF/CLIMB. AIRCRAFT RETURNED TO SNA AND LANDED WITHOUT FURTHER INCIDENT. CONTRACK MX FOUND A 24 INCH SEGMENT OF AFT CARGO DOOR SEAL PULLED LOOSE FROM ITS TRACK. REINSTALLED SEAL, PRESSURIZED AIRCRAFT USING THE APU AND/OR RT ENGINE BLEED, AND PERFORMED THE PRESSURIZATION CONTROL SYSTEM OPERATIONAL TEST. NO FURTHER FAULTS NOTED AT THIS TIME. SEAL TO BE INSPECTED AT LAS. AIRCRAFT RETURNED TO SERVICE. (W)