As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TE FLAP DISAGREE ON FLAP RETRACTION FROM 5 TO 1. USED ALTERNATE SYSTEM, EICAS MESSAGE ERASED. WITH ALT SYSTEM C/W FIM 27-51-808 FIG 105 SH 4.NO OVERLOAD INDICATORS POPPED.CYCLED FLAPS NO DEFECTS NOTED.NO EICAS MESSAGES DISPLAYED.THIS CLEARS AUTH 2804013.