As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS SIGNIFICANT SYSTEM - ATB - VNAV/LNAV WOULD NOT ENGAGE WITH CENTER AUTOPILOT ENGAGED. CAPTAIN SPEED LIMIT INOP DISPLAYED ON CAPTAINS ADI. REPLACED NR 1 FMC. GND OPS CHK OK AMM 34-61-02. ACCOMPLISHED MCDP TEST 30 TEST PASS A/C OK TO REMAIN AT LMP STATUS "LAND 3".