As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
A-I WING VLV OPEN EICAS MSG DURING CRUISE AND PERSISTED. DURING APPROACH RAN QRH AND THE EICAS MESSAGE DID NOT EXTINGUISH A-I SWITCH IN AUTO. A-I STATUS PAGE SHOWS RIGHT WING A-I WING VALVE AS AMBER X. EMEGENCY DECLARED DIVERTED TO FWA. PERFORMED WING A/I OPS CHECK IAW ERJ-170 AMM 30-11-00 OPS CHECK GOOD NO MESSAGES NOTED AT THIS TIME