What was found
SMELL OF SMOKE IN COCKPIT HAPPENED AFTER LIGHT / MOD TURBULENCE IN CRUSE , AFTER SHUTTING PAC 1 DOWN SMELL WENT AWAY .SMELL WAS NOT PRESENT THE REST OF THE FLIGHT NO VISIBLE SMOKE OR MSGS PRESENT .SMELL ONLY IN COCKPIT .ELECTRICAL SMELL . NOT IN CABIN OR LAV OR BAG . THE SMELL WAS LIGHT LESS THAN 2 MIN, MASKS WERE NOT USED AND FLIGHT LEVEL ABOVE 250 BOTH ENG ON . ALL ANTI ICE WAS ON ., AC NOT IN ICING AND AC WAS NOT DE ICE PRIOR TO T/O . TLA WAS AT 86% AND NO EMERGENCY WAS DECLARED " PREFORMED TROUBLE SHOOTING FOR ABNORMAL SMELL IN COCKPIT. RAN BOTH ENG WITH PAC SYSTEM WITH CREW. OPS CHECKED GOOD NO SMELL OR DEFECTS NOTED AC RETUNED TO SERVICE