What was found
FO NAV DISPLAY DISPLAYS "MAP" ON PREFLIGHT. GROUNDED - YES. REMOVED AND INSTALLED NEW #2 FMC COMPUTER, REF FMCS COMPUTER REMOVAL TASK AMM 34-61-02-000-801. ACCOMPLISHED THE FOLLOWING: STEP E. INSTALLATION TEST SUBTASK AMM 34-61-02-710-003 (1) LOAD ALL THE REQUIRED SOFTWARE INTO THE NEWLY INSTALLED FMCS COMPUTER PER FLIGHT MANAGEMENT COMPUTER SYSTEM - MAINTENANCE PRACTICES, AMM 34-61-00/201 (2) DO THIS TASK: FMCS PERFORMANCE FACTORS - ADJUSTMENT, TASK AMM 34-61-00-800-801 (3) DO THIS TASK: FLIGHT MANAGEMENT COMPUTER SYSTEM - OPERATIONAL TEST, TASK AMM 34-61-00-710-801. ALL TESTS PASSED.