As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT MAIN SYSTEM ''''A'''' GREEN LIGHT REMAINED ILLUMINATED AFTER GEAR RETRACTION. FOLLOWED QRH WHICH HAD US ATTEMPT TO CYCLE GEAR DOWN. WITH GEAR LEVER DOWN, NO ACTION WITH GEAR AND ALL GEAR LIGHTS EXCEPT LEFT MAIN ''''A'''' RED LIGHT ILLUMINATED. PERFORMED ELECTRICAL OVER RIDE PER QRH AND GEAR EXTENDED, NORMALLY WITH NORMAL INDICATIONS. REPLACED DOWNLOCK A PROX SENSOR IAW MM 32-61-00. OPS CHECKS GEAR IAW MM 32-00-00 GOOD.