As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER T/O LEFT MAIN RED REMAINED ILLUMINATED W/GEAR LEVER UP, ALL OTHER INDICATION IND NORMAL. CYCLED GEAR PER QRH NO HELP PUT GEAR DOWN FOR RETURN IND NORMAL. FOUND LT MLG UP PROX SENSOR OUT OF ADJUSTMENT. REPLACED SENSOR IAW AMM 32-60-05-201. OPS CHECK GOOD