With all the interior lighting completely exposed, for the roof and ceiling replacement, not is the time to check and repair all the ceiling lighting.
Before 4451 went out of service last, it has suffered a short in the interior lighting, and was not used since.
Today Chuck and Jeff were able to map the entire lighting system, mark everything and find the short. (both snap switches above the motorman controls were faulty)
Careful checking of each and every wire in the system, has led us to be confident "lighting her up" once the ceiling is back in!
Huge thanks to Fred for the wiring diagram!