As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT PACK TEMP EICAS MESSAGE. (<P>C/W BITE CHECK ON TEMP CONTROL BOX IAW AMM 21-51-00. FOUND FAULT ON TEMP CONTROL VALVE, REPLACED RIGHT TEMP CONTROL VALVE AND OPS CHECKED IAW AMM 21-51-12-004-001/404-013. OPS CHECK GOOD, NO FAULTS NOTED. </P>)