The teardrop to the left and then back around to the right appears to to shown here. Looks reasonable. Whatever happened, happened fast, and perhaps when exiting the turn and lining up with final. A time when power would be reduced after the turn.
Just tickled my memory. I was PNF in BOS TCA IFR on approach to landing. Captain threw both AC master power and avionics (next to each other, non guarded) to off. This was out of the blue and for no reason. The entire panel and AC went dark. We obviously worked it out.
