As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, LANDING GEAR POSITION LEVER WOULD NOT MOVE PAST OFF POSITION. GEAR POSITION INDICATED GEAR DOWN AND LOCKED. AIRCRAFT RETURNED TO OAK AND MADE AN UNEVENTFUL LANDING. MAINTENANCE FERRIED AIRCRAFT TO PHX. REPLACED GROUND SHIFT SENSOR AND PC LOGIC CARD PER BOEING M/M.