Small passenger vessel Qualifier 105 before the casualty.

​​Qualifier 105 underway on an unknown date before the fire. (Source: Support Vessels of Alaska)

Fire aboard Small Passenger Vessel Qualifier 105

What Happened

​On January 19, 2023, about 1155 local time, a fire started in a stateroom below the main deck of the small passenger vessel Qualifier 105, which was being stored ashore for the winter, on blocks, in the Northern Enterprises Boat Yard in Homer, Alaska. The local fire department responded and extinguished the fire. No pollution or injuries were reported. The owners declared the vessel a constructive total loss. Damages were estimated at $1.2 million. 


What We Found

​​We determined that the probable cause of the fire aboard the passenger vessel Qualifier 105 was an undetermined electrical source that ignited a stateroom ceiling. Contributing to the extent of the fire damage was the substantial use of combustible materials composing the stateroom ceilings and bulkheads throughout the vessel’s accommodation spaces.


Lessons Learned

​​Taking Precautions for Stray Welding Current

Stray welding current is a fault condition in which current goes through unintended conductors and back to the return terminal of a welding machine; it can cause fires by overheating wires. To avoid potential fires caused from stray welding current, maintenance personnel, owners, and operators should follow industry practice to place the work clamp (the return current clamp) of the welding machine as close as possible to the point of welding. ​  


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