On 4/21/1977 , the vessel CANADIAN LEADER (Official Number 325746) was involved in a grounding - under power (non-intentional) in LAKE SUPERIOR-THUNDER BAY-SEARLE ELEVATOR-OFF,.

The vessel, with 25 persons on board, experienced the incident while engaged in regular operations. There were 0 injuries and fatalities were reported, and there was pollution.

GROUNDED BY BOW WHILST MANOEVERING IN CHANNEL.NO APPARENT DAMAGE. Note: formerly OccNo : 9708-25-1. Damage to the vessel was indicated as UNKNOWN

Weather at the time was reported as rain with winds from the NNW at 10.00 knots. This incident was officially recorded by Transport Canada on 5/10/1977 .