As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAKEOFF RETRACTED GEAR RECEIVED A RED UNSAFE INDICATION OF THE LT MAIN GEAR IN BOTH THE PRIMARY AND SECONDARY GEAR POSITION INDICATORS. CYCLED GEAR IAW QRH SAFE DOWN INDICATION, UNSAFE UP. CONTINUED TO DEST AT 250 KNTS. R & R LT MLG POSITION DOWN AND LOCKED SENSOR. ACFT RETURNED TO SERVICE