As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON RETRACTION ON TAKEOFF, THE GEAR WARNING HORN AND ALL RED GEAR LIGHTS CAME ON STEADY. GEAR HANDLE WAS CYCLED DOWN AND WARNING LIGHTS AND HORN TURNED OFF. GEAR WAS RAISED AGAIN WITH NORMAL INDICATION. CHECKED ALL THREE THROTTLE SWITCHES FOR CONTINUITY. FOUND NR 1 THROTTLE SWITCH STICKING INTERMITTENTLY. REMOVED AND REPLACED SWITCH, OPS CHECK GOOD PER AMM 76-11-04-2.