What was found
AIRCRAFT NOT GROUNDED: PILOT REPORTS VNAV NOT WORKING NORMAL T/O AT 1000 FT VNAV WOULD NOT ENGAGE. T/O WINDOW SHOWED A/T LIM WITH WHITE BOX AROUND IT )-NO CLB OR CRZ OR TO), TAT NORMAL. NO N1 LIM JUST GREEN DASHES ABOVE N1 GAUGES COND A/T AND A/P WORKED IN MCP SPD, V/S AND LVL CHG .CRZ AND DECENT PAGE MISSING INFO NO TGT SPD OR N1. LEGS PAGE MISSING SPD AND ALT INFO. FDS WORKED. MAINTENANCE TROUBLESHOT IAW FIM 22-11-00-810-801. SUSPECT LRU. ***SUPPLEMENTAL INFORMATION: MAINTENANCE REMOVED AND REPLACED FLIGHT CONTROL COMPUTER SIDE A IAW AMM 22-11-33-400-801. SOFTWARE IS CURRENT IAW IPC 22-11-33. ACCOMPLISHED LMP TEST IAW AMM 22-11-00. OPS CHECK GOOD, NO FAULTS *** (CLOSED)