This timer for an older OTIS elevator has gone bad and can't find a replacement for it. Anyone ever come across this?

The timer block is labeled SP on the print. Is there an acceptable workaround or replacement part?

Please see the attached pictures.

Thanks
Attachments
Timer Circuit.jpg (383.56 KB, 32 downloads)
Timer Code.jpg (408.67 KB, 27 downloads)
Timer.jpg (359.82 KB, 30 downloads)
Print.jpg (490.66 KB, 27 downloads)