As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER SELECTING GEAR DOWN, LT MAIN GEAR DID NOT INDICATE DOWN. (2 GREEN 1 RED) FOUND LEFT GEAR DOWNLOCK SWITCH CONNECTOR CONTAMINATED. CLEANED REINSTALLED INDICATIONS NOW CK GD SWUNG GEAR IAW 32-01-00 SYSTEM CHECK GOOD RESET & SERVICED PNEUMATIC BRAKE & GEAR BOTTLE IAW 12-13-01