What was found
PHX - ABORTED TAKEOFF - FLT 0341 - ON TAKEOFF FROM PHX EN ROUTE TO LAS THE FLIGHT MANAGEMENT COMPUTER FAILED AT 90 KTS, REJECTED TAKEOFF AND RETURNED TO GATE. MAINTENANCE REMOVED AND REPLACED THE FLIGHT MANAGEMENT COMPUTER IAW BMM 34-62-21-401 REV 3, NAV DATA DOWNLOAD ACCOMPLISHED IAW T/C A1B34060. VENDOR BENCH TEST RESULTS FOR FLIGHT MANAGEMENT COMPUTER FAILED INCOMING TEST DUE TO THE UNIT TIMED OUT. REPAIR ACTION STATES TESTED EXTENSIVELY WITH NO FAULT FOUND. INFORMATION HAS BEEN PROVIDED TO CHRONIC COMPONENT PROGRAM AND WARRANTEES.