What was found
SOUND OF ELECTRICAL ARC IN COCKPIT FOLLOWED BY LIGHT SMOKE WHICH DISSIPATED AFTER 10 MINUTES. OCCURRED IN CRUISE AT FL330 30 MINUTES FROM LANDING. FA€™S REPORTED SIMILAR CONDITIONS AND SOME PASSENGERS LOST SEAT POWER. (FLIGHT 3942) PLEASE REFERENCE AML 1517583. PERFORMED FIM TASK 21-21-00-810-806 FOUND CAPTAIN'S FLOOD LIGHT ABOVE CLOCK DAMAGED AND CAN DUPLICATE ARCING. PLEASE REFERENCE AML 1517644.