As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, GEAR SELCETED UP AND RED UNLOCK LIGHT CAME ON - RT GEAR GREEN LIGHT REMAINED ON - LT GEAR AND NOSE LIGHTS WENT OFF. LIGHT CONDITION REMAINED UNTIL GEAR APPEARED UP AND UPLOCK LIGHT THEN UNLOCK AND ALL GREEN LIGHTS WENT OUT. APPROXIMATELY TEN SECONDS. REMOVED AND REPLACED THE STEERING UNIT IAW CE-680 MM 32-25-00. OPERATIONAL CHECK, LEAK CHECK, TRAVEL AND TAXI CHECKS GOOD.