What was found
LEFT MAIN GEAR STAYED DOWN AFTER GEAR RETRACTION WITH A LT GEAR DOWN GREEN INDICATION & NO RED INDICATION. OHMED OUT LT GEAR UPLOCK SWITCH SG007 & FOUND WITH THE GEAR DOWN. THE SWITCH IS LIGHTLY TAPPED BETWEEN PINS E & F, RESISTANCE GOES FROM .2 OHMS UP TO 3 OHMS. RESISTANCE ALSO JUMPS AROUND WITH NO PRESS APPLIED TO SWITCH. REMOVED LT DOWNLOCK SWITCH, PN 6-0373-3, NO SN IAW MM 32-30-40. R & R LT MLG UPLOCK SWITCH & DOWNLOCK SWITCH IAW MM 32-60-00. PERFORMED MLG UPLOCK SWITCH OPERATIONAL CHECK IAW CE-680 MM 32-00-00-701. OPERATIONAL CHECKED GOOD. PERFORMED MLG DOWN LOCK SWITCH OPERATIONAL CHECK IAW MM 32-60-00. VERIFIED INSTALLATION OF SWITCHES & GEAR SWING OPERATIONAL CHECKS.