What was found
ON 07-08-2005, A/C 631RW, FLT 7573 ORD-HPN. DURING FLIGHT AT FL390, ALL FIVE DISPLAY UNITS WENT BLANK. THE AUTOPILOT AND AUTOTHROTTLES DISENGAGED AND MULTIPLE FLIGHT CONTROL FAULT/FAIL MESSAGES WERE PRESENT. MX RESET POWER IAW FIM 45-45-00-810-939, NO DEFECTS NOTED AT THIS TIME.