What was found
LEFT GEAR OPEN LIGHT STAYED ON WHEN LG EXTENDED FOR LANDING. AT MAIN GEAR TOUCH DOWN LIGHT OUT. IAW CAPTAIN REPEAT ON DOOR INDICATION & THAT HE HAD TRIED BOTH SYS 1 & 2. FOUND LT MAIN GEAR DOOR MICRO SWITCH 31GB BAD. ALSO FOUND SYS 2 LT MAIN GEAR DOOR MICRO SWITCH 29GB STICKING. REPLACED BOTH IAW AMM 32-00-00. OPERATIONS CHECKED GOOD IAW AMM 32-61-00-05. SYS 1 & 2 GEAR DET SWITCH ON FWD PANEL HAS NO EFFECT ON GEAR DOOR POSITION INDICATIONS. REPLACED DOOR SWITCHES 31GB & 29GB.