As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, LANDING GEAR REQUIRED USE OF DOWNLOCK RELEASE TO BRING GEAR UP. THERE WERE NO TRANSIT LIGHTS IN THE GEAR HANDLE, AND LANDING GEAR HORN SOUNDED WHEN GEAR RETRACTED. RETURNED TO DEPARTURE. LANDED WITHOUT INCIDENT. RESECURED RT MLG SQUAT SWITCH CONNECTOR PLUG. LANDING GEAR OPS CHECK GOOD.