The NTSB cited misfueling in an accident that injured three people aboard a State of Alaska Shrike Commander in late May. The aircraft was being used to deploy firefighting personnel when it was refueled at Aniak, Alaska, on May 28. According to the report, the operation went pretty much by the book, except that Jet A ended up in the tanks instead of the 100LL its thirsty IO-540s need. The pilot noticed trouble shortly after takeoff and aimed for shallow pond in a gravel pit. He was seriously hurt and his two passengers were also injured.
This is a companion discussion topic for the original entry at https://www.avweb.com/aviation-news/misfueling-cited-in-alaska-commander-crash