As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MYR - CREW REPORTED LEFT MAIN LANDING GEAR WOULD NOT RETRACT AFTER TAKEOFF. CREW ELECTED AN AIR TURN BACK AND MADE AN UNEVENTFUL LANDING. MAINTENANCE ADJUSTED LEFT MAIN LANDING GEAR SEQUENCE VALVE. GEAR SWING WAS PERFORMED, OPS CHECK GOOD. (M)