What was found
WHEN THE LEFT LANDING LIGHT SWITCH WAS SELECTED TO EXTEND, COCKPIT FILLED WITH SMOKE. REPLACED THE LEFT LANDING LIGHT SWITCH. OPS CHECKED GOOD IAW DC-9 MM.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
WHEN THE LEFT LANDING LIGHT SWITCH WAS SELECTED TO EXTEND, COCKPIT FILLED WITH SMOKE. REPLACED THE LEFT LANDING LIGHT SWITCH. OPS CHECKED GOOD IAW DC-9 MM.