As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SFO - AFTER TAKEOFF LEFT MAIN LANDING GEAR FAILED TO RETRACT AFTER TAKEOFF. AIRCRAFT RETURNED TO STATION WITHOUT INCIDENT. AIRCRAFT FERRIED TO FAT FOR REPAIRS. MAINTENANCE ADJUSTED LEFT MAIN LANDING GEAR UPLOCK ACTUATOR. LANDING GEAR OPERATION NORMAL ON GEAR RETRACTION CHECK AND SUBSEQUENT TEST FLIGHT. AIRCRAFT RETURNED TO SERVICE. (W)