With a Little Help from my Friends. Siemens Chargers are becoming more and more common these days. At the same time, they're becoming known for their mechanical failures. Dash 8's have become quite reliable rescue power. Case in point, P32BWH #519 has been pingponging back and forth between Chicago and Milwaukee on Hiawatha trains for nearly the past week, much to the delight of the photographers. The 31-year old venerable GE is passing the even more venerable Tower A2, which has over a hundred years of service under its belt and is still manned today.