What was found
DURING DESCENT, VTK AND MAP FAILURE FLAG DISPLAYED ON CAPTAIN'S AND THEN ALTERNATED TO F/O'S WHILE RESTORED TO CAPTAIN'S SIDE. THE DISPLAYS ALTERNATED VTK AND MAP FAILURE ON LANDING. ACFT GROUNDED. FMCS BITE, NO SENSOR FAULTS. 13 INFLIGHT FAULTS LOGGED ON LEGS 2 AND 9. FAULTS ON BOTH LEGS IDENTICAL, VERIFIED BOTH FMC SOFTWARE PROVISIONS ARE SAME AND EFFECTIVE. ACCOMPLISHED PROGRAM PINS TEST IAW AMM 34-61-00-730-801 STEP (7). ALL NORMAL IAW TABLES 506 AND 507. RELOADED FMC SOFTWARE IAW MM 34-61-00-470-805. CROSS-LOADED NORMAL. FMC SOFTWARE CONFIGURATION CHECKED NORMAL IAW AMM 34-61-00-750-801. TESTS LOADED VERIFIED.