What was found
SFO - LEFT MAIN LANDING GEAR INTRANSIT LIGHT REMAINED ILLUMINATED FOLLOWING GEAR EXTENSION. CREW CYCLED LANDING GEAR. NORMAL POSITION INDICATIONS RECEIVED FOLLOWING SECOND GEAR EXTENSION. AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED LEFT MAIN GEAR UPLOCK AND DOWNLOCK MICROSWITCHES AND ASSOCIATED WIRING. NO DEFECTS NOTED. LANDING GEAR POSITION INDICATION SYSTEM OPERATIONAL CHECK NORMAL DURING GROUND TEST. AIRCRAFT RETURNED TO SERVICE. (M)