What happened
The flight originated from Charlottetown Airport as part of a ground reconnaissance exercise. While cruising approximately 129 km from the airbase, the crew experienced mechanical issues with the right engine, resulting in a loss of power. The pilot initiated a return to base but encountered further complications during the descent phase when the starboard engine stopped completely.
With both engines inoperative and the aircraft losing altitude rapidly, the crew was unable to reach a suitable clear landing area on land. Consequently, the pilot executed a forced landing on the water surface of the Bay of Tracadie. All four individuals aboard the aircraft escaped the accident uninjured.
Findings
Investigations determined that the initial failure originated from split collets retaining the number five inlet valve spring on the starboard engine. These components came adrift during flight, which caused the initial loss of power and led to the subsequent total failure of that engine.