[atomic conspiracy]

That jumped out at me, too. Ruidoso (Sierra Blanca Regional) also has a density/altitude issue, since it is 6814' ASL. The runways are 8100 and 6500 feet, which should be plenty but it is likely that an overloaded 310 would be out of balance as well.

[CedarDave]

This it the new airport — the older one, closed in 1989, had a single runway with a length of only 5,500 ft. It is now the location of a country club and golf course.

http://www.airfields-freeman.com/NM/Airfields_NM_SE.htm#ruidoso

[CedarDave]

The old airport had frequent fatal crashes due to the swirling, variable winds due to the adjacent mountains. The new airport has had much less but is still subject to windy conditions. Because the incident took place in clear conditions in the morning before the winds pick up, I would suspect overloading or pilot erro with the high altitude a contributing factor.