As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INVESTIGATED FLIGHT CREW REPORT OF LT MAIN GEAR UNLOCKED INDICATION FOLLOWING LANDING GEAR RETRACTION AFTER DEPARTURE. LANDING GEAR ANNUNCIATOR INDICATIONS REPORTED NORMAL AFTER LANDING GEAR EXTENDED. CLEANED AND LUBRICATED LANDING GEAR POSITION SWITCHES AS REQUIRED, POSITION WARNING INDICATIONS NORMAL DURING REPEATED LANDING GEAR RETRACTION/EXTENSION CYCLES WITH ACFT ON JACKS.