AC1208 - Incident: Canada BCS3 at Montreal on Mar 2nd 2024

An Air Canada Bombardier C-Series CS-300, registration C-GJXE performing flight AC-1208 from Montreal,QC (Canada) to Miami,FL (USA) with 136 passengers and 5 crew, was climbing through 8000 feet out of Montreal when the crew received a right hand engine (PW1524G) nacelle overheat message that persisted despite working the related checklists. The crew therefore shut the engine down, declared PAN PAN and returned to Montreal for a safe landing one hour after departure.

The Canadian TSB reported maintenance replaced the "Buffer Air Pressure Sensor", the "Buffer Air Valve Selenoid and Valve Assembly".