Caption: Hearing 236 has a pair of SD60’s was enough to put some effort in to catch it somewhere under decent light. Of course plans typically don’t work out, especially chasing CPKC lately. The sun angle away perfect at Hornby so we set off to catch it there. An hour later it was stopped at Erindale with its trailing GP38 not loading. We decided to head towards the train figuring the light would drop before the train actually arrived. By the time we neared Meadowvale 236 was reported on the move again so we had to quickly find a location. Minutes later 236 was caught struggling up the slight grade at Meadowvale. After 3/4 of the train passed the engineer flicked the switch to turn on the sanders only to find out he accidentally dropped all the air in the tail end of the train. Stuck on the grade they were dead in the water with the second unit now failing. The train would spend the next several hours waiting for help. I’m sure the crew won’t forget this trip.