As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 5531, SDF TO IAH. ON CLIMB OUT FROM SDF THE CREW RECEIVED L 10TH DUCT, ANTI ICE DUCT, AND L 14TH DUCT MESSAGES ON EICAS. THE QRH WAS FOLLOWED AND THE AIRCRAFT RETURNED TO SDF AND LANDED WITHOUT INCIDENT. MAINTENANCE FOUND A LOOSE CLAMP ON THE 14TH STAGE CHECK VALVE BETWEEN THE SHUT-OFF VALVE AND THE WING ANTI-ICE VALVE. THE CLAMP WAS RE-SECURED AND THE SYSTEM OPERATED NORMALLY.