As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING GROUND MAINTENANCE CHECKS THE LEFT COWL VALVE FAILED TO OPEN, INDICATED BY A CAS MESSAGE. THE MAINTENANCE TEAM VERIFIED THE DISCREPANCY AND REMOVED AND REPLACED THE LEFT ENGINE COWLING ANTI-ICE VALVE WITH AN OVERHAULED UNIT. OPS CHECKS WERE SATISFACTORY AND THE AIRCRAFT WAS RETURNED TO SERVICE.