As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STATUS MSG MEDC LEFT CHANNEL A FAULTED CAUSING MULTIPLE STATUS MESSAGES AND THE INABILITY TO TURN OFF THE LEFT EAI VALVE. REF IPD 26-10-01-020-941A ITEM #730. MEDC P/N 30295-0101. VERIFIED L ENG MEDC S/W # GRH5C-0118-9101 INSTALLED. REMOVED AND REPLACED MEDC REF AMM 26-10-01. OPS CHECK GOOD.