As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, WITH LANDING GEAR LEVEL SELECTED UP, LT MAIN GEAR INDICATOR INDICATED UNSAFE (YELLOW RECTANGLE W/HASH MARKS). NOSE AND RT MAIN INDICATORS INDICATED UP. QRH PROCEDURE WAS ACCOMPLISHED. WITH GEAR LEVER "DOWN" HAD 3 DOWN AND GREEN INDICATIONS. R & R THE LT MAIN GEAR DOOR AFT PROXIMITY SWITCH AND HARNESS. ADJUSTED PROXIMITY SWITCH. PERFORMED GEAR SWINGS MULTIPLE TIMES. OPS CHECKED GOOD. WORK DONE IAW MM 32-10-11.