Anyone Heard Cause Behind Hercules 265 Blowout?

It’s been about a year and a half and I still haven’t been able to find anything on the bsee’s incident reports. Am I missing something?

http://www.data.bsee.gov/homepg/data_center/other/tables/safetylist.asp

There’s one around the right time but it’s a different incident.

Has anyone heard anything as to what was the cause?