Six 737 Airframes In Derailment

A train carrying six 737NG fuselages, and components for 747s, 777s, and 787s, from Wichita, KS to Renton, WA, derailed at Rivulet, MT today. Of the six 737 airframes, four were dislodged from their train beds, and three fell along the banks of the Clark Fork River. It is not known at this time which line numbers, nor airlines, were assigned to these airframes.

The photos do show those at the river bank are 737-800s and a 737-900. Upon closer at one of the photos, it appears that the line number on the fuselage is 50__.

Here are the affected airframes:
5030 | N8643A | 42524 | Southwest Airlines | -8H4
5031 | HS-DBR | 43420 | Nok Air | -86N
5032 | N8644C | 35973 | Southwest Airlines | -8H4
5033 | N955NN | 31199 | American Airlines | -823
5034 | B-1971 | 39904 | Xiamen Air | -85C
5035 | B-1972 | 37620 | Shenzhen Airlines | -87L

Further details in this Aviation Week article.

Photos of the derailment from Seattle's KING5.