Customer stated that there outlets in the garage sparked and then stopped working. I found that the outlets still worked but were very loose and arched when anything was plugged in. I replaced the outlets. While replacing the outlets I noticed the neutral wire was severed, which would also account for the loss of power. The sheathing was still attached so occasionally the wire would be connected. While inspecting the panel I found double tapped neutrals, a non UL listed breaker, and no surge protection. We corrected all of this as well