What was found
(CAN) ON GEAR RETRACTION LEFT MAIN GEAR (GREEN) DOWN INDICATOR REMAINED ILLUMINATED. CONFIRMED THAT THE GEAR DID RETRACT. ON EXTENSION THE INDICATOR BECAME VERY BRIGHT. GEAR OPERATED NORMALLY. MAINTENANCE FOUND A BULB SHORTED TO THE CONTACTS IN THE LANDING GEAR SELECTOR HANDLE ASSY. REPLACED HANDLE ASSY BUT LIGHTS REMAINED FULL BRIGHT WITH BRIGHT DIM SWITCH. REPLACED ADVISORY CONTROL UNIT AND OPS CHECKS WERE GOOD. (TC# 20190529009)