As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDEDL: NOSE LANDING GEAR EXTENDED WITH HANDLE IN OFF POSITION AFTER TAKE OFF. PUTTING HANDLE BACK UP RETRACTED THE NOSE GEAR. HANDLE LEFT IN UP POSITION PER QRH FOUND LANDING GEAR SELECTOR VALVE FAULT. REPLACED SELECTOR VALVE AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 32-31-51.