What was found
WINDOW HEAT CONDUCTOR, UPPER LEFT L-1 WINDOW, ARCHING AND SMOKE NOTED. TURNED OFF L-1 AND L-2 WINDOW HEAT, CONDITION STOPPED. REPLACED L-1 WINDOW PER MM 56-11-11, PRESSURIZED WINDOW AS PER MM 36-00, OPS CHECKED WINDOW HEAT AS PER MM 30-45-02. NO LEAKS NOTED ON PRESSURIZATION AND WINDOW HEAT OPS CHECKED GOOD.