What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) The flight was a combination training flight, providing additional cross country training as well as high performance training. Deerfield is a privately owned, grass runway, with orientation approximately 330/150 degrees. On final, seeing the student was high, the instructor took over the flying duties, and made a full flap Landing. Feeling that they were Landing long and would need maximum braking effort, he retracted the flaps. The brakes did not seem to have any effect. Unable to stop before running out of runway, they hit trees at the end of the runway. The pilot stated that the airplane appeared to have been functioning normally.
As the FAA filed it
(-23) THE FLIGHT WAS A COMBINATION TRAINING FLIGHT, PROVIDING ADDITIONAL CROSS COUNTRY TRAINING AS WELL AS HIGH PERFORMANCE TRAINING. DEERFIELD IS A PRIVATELY OWNED, GRASS RUNWAY, WITH ORIENTATION APPROXIMATELY 330/150 DEGREES. ON FINAL, SEEING THE STUDENT WAS HIGH, THE INSTRUCTOR TOOK OVER THE FLYING DUTIES, AND MADE A FULL FLAP LANDING. FEELING THAT THEY WERE LANDING LONG AND WOULD NEED MAXIMUM BRAKING EFFORT, HE RETRACTED THE FLAPS. THE BRAKES DID NOT SEEM TO HAVE ANY EFFECT. UNABLE TO STOP BEFORE RUNNING OUT OF RUNWAY, THEY HIT TREES AT THE END OF THE RUNWAY. THE PILOT STATED THAT THE AIRPLANE APPEARED TO HAVE BEEN FUNCTIONING NORMALLY.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.