PM another engine.
GN N-3 2-8-8-0 made by Tenshodo in 1973. TCS 1517 decoder, re-gear, re-motor, lots of LED lights and Glacier paint added.
This engine was, occasionally, shorting at the last 'OPS'.
Videos:
Skykomish:
https://www.youtube.com/watch?v=_qHm2YUmYTw
Hillyard:
https://www.youtube.com/watch?v=k7liWQpnGjk
While in a tunnel, I noticed the 'blow down' pipe was below rail 'level'. That was adjusted but nada.
'Blow down' pipe.
While on a trestle, I started wiggling the engine with no results and then the tender and noticed a tiny spark where the draw bar screw nut was, momentarily, making contact with the engine frame, thus causing the short. The draw bar screw just had to be tightened while securing the nut and all's 'good'.
The Seattle's freight yard was full so the 'freight drag' was routed to St. Paul's freight yard.