What was found
FLIGHT 5478 - LEFT ENGINE COWL ANTI-ICE CAUTION MESSAGE IN FLIGHT. AIRCRAFT DIVERTED TO YYZ AND LANDED SAFELY. REMOVED AND REPLACED LEFT ENGINE COWL ANTI-ICE RELIEF VALVE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLIGHT 5478 - LEFT ENGINE COWL ANTI-ICE CAUTION MESSAGE IN FLIGHT. AIRCRAFT DIVERTED TO YYZ AND LANDED SAFELY. REMOVED AND REPLACED LEFT ENGINE COWL ANTI-ICE RELIEF VALVE.