What was found
BOTH LT & RT FMC'S INOP, RTFL ASSOCIATED AUTO-PILOT CAUTION LIGHT. SEE AMIS HISTORY FOR INBOARD CREW DEBRIEF. NOTE ON ARRIVAL, MCDP BITE SHOWED A-P CTR MODE ERROR, CODES 112480, 122480, 132480. REPLACED CENTER FCC. ACP'D RELOAD OF FMS NAV DATABASE UA41209001, ACP'D FMCS OPERATIONAL TEST MM. TESTS OKAY. ACP 'D CAT III TEST. TESTS OK. ACFT STATUS CAT III.