When I had the privilege of rewiring PA474 the Plessey Plugs on the original perished wiring were all solder connections. I asked my "Chiefy", Ralph how they did soldering out on a far dispersal. He said they used an ordinary old fashioned soldering iron and a blowlamp. Heat the iron red hot, then climb aboard and solder away. Anyone familiar with clambering into a Lancaster and up to the main electrical panel in the Flight Deck, can imagine the hazards of doing this while bearing a red hot soldering iron in one hand.
