1931 Damage To #345

Having read and pondered all the data for how or why #345 was damaged in a "dead head" movement from Alamosa to Durango, something is not adding up to 2+2=4.
65 cars deep in a freight train, damage or derailment to freight cars should have occurred. In 1931 what kind of cars were being moved West, loads or empties? Anyone riding in the caboose receive injuries? None reported.
In railroad reporting, everyone words things to cover up your own butt & officials have to figure out what actually did happen. Did #345 receive damage in the Alamosa yard, then it was placed in the freight for Chama? Was #345 damaged at Chama and not reported, trying to hide facts and get it to Duango.
When you think about the movie "Denver & Rio Grande," #345 and #319 were ran together in a climatic scene. #345 did not receive frame or driver damage then, was able to move "dead in tow" or Durango, then on to Alamosa.
If slack action forces did the damage to #345, other things should have been "trashed" also.