As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TE FLAP DISAGREE EICAS MESSAGE ON APPROACH. RECEIVED MESSAGE WHEN FLAPS SELECTED TO 20. AT A SPEED OF 170KTS. COMPLIED WITH QRH AND LANDED FLAPS 20. USING ALTN FLAPS. FACT 01MAR18 22:55 BSL U AT ARRIVAL OF A/C NO EICAS MESSAGE PRESENT. SYS TESTED IAW AMM 27-51-00-2 OK. AND BITE TEST C/OUT ON FSEUS ON FAULTS LATCHED IAW FIM 27-51-00.