What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) At approximately 1730 PST on 09/05/2007 at the Hood River airport (4S2) instructor privacy data omitted was conducting tail wheel transition training with privacy data omitted. During take-off roll the aircraft swerved violently to the left causing the aircraft to depart runway 25 impacting an earthen bank and steel fence post. A post incident aircraft inspection and pilot statement revealed that the hand brake had not been released prior to the attempted take-off.
As the FAA filed it
(-23) AT APPROXIMATELY 1730 PST ON 09/05/2007 AT THE HOOD RIVER AIRPORT (4S2) INSTRUCTOR ^PRIVACY DATA OMITTED^ WAS CONDUCTING TAIL WHEEL TRANSITION TRAINING WITH ^PRIVACY DATA OMITTED^. DURING TAKE-OFF ROLL THE AIRCRAFT SWERVED VIOLENTLY TO THE LEFT CAUSING THE AIRCRAFT TO DEPART RUNWAY 25 IMPACTING AN EARTHEN BANK AND STEEL FENCE POST. A POST INCIDENT AIRCRAFT INSPECTION AND PILOT STATEMENT REVEALED THAT THE HAND BRAKE HAD NOT BEEN RELEASED PRIOR TO THE ATTEMPTED TAKE-OFF.