As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS SIGNIFICANT SYS - FMC- ENROUTE WAY POINT TIME (ETA'S) ESTIMATES WERE IN ERROR UP TO 20 MIN ONLY HAPPENED ONCE AT (1) WAY POINT THE LAST ONE (COAST IN WAY POINT FIX) AT END OF FLT. C/W FIM 34-61-00, FIG 108A AND FIG 111. NR 10000. REPLACED LT FLIGHT MANAGEMENT COMPUTER IAW AMM 34-61-01, TESTS NORMAL. FMC DATA BASE CROSSLOADED AND VERIFIED CORRECT.