Here is a photo of what appears to be a former NYC S-2 locomotive pulling three former New Haven ‘Washboard’ units during a fan trip in the 70’s. This led me to think about when the New Haven ran on the New York Central system. If a New Haven train broke down on the New York Central’s electrified zone, was it the New Haven’s responsibility to move the train off the line or did NYC locomotives/switchers assist in the moving process?
A locomotive failure on a New Haven Railroad train running on New York Central trackage was the responsibility of the New Haven Railroad to provide relief power to get it moving again. Way more engine failures occurred on trains outbound from New York rather than trains inbound to New York so New York Central motors would not have been any help anyway. It wasn't until Metro-North days that a universal protect crew would be able to go anywhere on all three divisions to rescue a dead train.
Noel Weaver