As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EICAS MSG SPOILERS UPON TURNING DOWNWIND, OVERHEAD SMO AT 4000 FT GOING FROM FLAPS 5 - 15. ACCOMPLISHED TROUBLESHOOTING OF SYS IAW CMC MSG`S 27-1287 1 & 27-12154. GND TEST OF SPOILERS, ELEC PASSED WITH NO FAULTS. OK IAW DMC-B787-A-27-60-F1-R4A-421A-A. FUP ISSUED TO CHANGE NR 4 EMCU.