Feb. 5/14-The Air Canada Airbus A330-300, C-GFAH, was on the take-off roll on RWY 35R at Calgary Intl. when an “ENG THRUST LOSS” ECAM (Rolls Royce Trent 772B-60 engine) caution prompted a rejected take-off at approximately 105 knots. The crew declared a PAN PAN PAN and the aircraft came to a stop on the runway at Taxiway D2. It remained there for 26 minutes before returning to the gate for maintenance action. There was a known fault with a control relay relating to an air flow control valve; the relay and the valve were replaced.