Navy Investigating Unexplained Breakdown on Brand New Arctic Patrol Vessel

HMCS Harry deWolf heads from the Irving-owned Halifax Shipyard on its way to being delivered to the Royal Canadian Navy dockyard in Halifax on July 31, 2020. The Canadian Press/Andrew Vaughan

OTTAWA—The Royal Canadian Navy is investigating an unexplained breakdown on its brand-new, $400-million Arctic patrol ship.

The problem first emerged last week as HMCS Harry DeWolf’s crew were training off the coast of Halifax, 2-1/2 months after Irving Shipbuilding delivered the vessel to the Navy.