As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENROUTE, STATUS MESSAGE OBSERVED FLAP AND SLAT ELEC MOC ADVISED, REQUESTED ACFT RETURN TO PAE. R & R NR 2 RVDT, AND CORRECTED MISWIRING AT TB215. PERFORMED GOOD CONTINUITY CHECK, AND GOOD INSTALLATION TEST. EICAS MESSAGE NO LONGER APPEARS. REG AMM 27-51-26, WDM 27-51-31.