Monday, March 18. Shipper faxes release to Alpha on night shift. Wednesday, March 20. Meanwhile, a derailment causes Beta Train PQXR 1234 not to run. As a result, the car misses its intended connec- tion.
Beta moves the car from the interchange halfway to the yard some time before dawn.
That afternoon, its intended connection runs late, and Beta decides to kill the job. Crew taxis back to home base, leaving locomotives behind. ABCD 12723 stands still. Friday, March 22. Crew taxis back, completes local work assignment, and returns to yard with ABCD 12723.