The Department of Interior’s Aviation Management Divison has released a report on the crash of the Single Engine Air Tanker in which the pilot, Dave Jamsa, was killed. The accident occurred on August 20 on the Hoyt Fire 125 miles northeast of Reno, Nevada. Wildfire Today reported on it HERE.
The report, which is in addition to and separate from any report by the NTSB, concluded that the air tanker while attempting to drop retardant on the fire did not release any retardant and impacted the ground. Investigators found that the drop mechanism had not been armed, meaning it would have been impossible to release the load.
Thanks Dick
UPDATE September 6, 2018: Here is an excerpt from the NTSB summary of the accident investigation: