What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
privacy data omitted Was attempting to takeoff from a grass rwy. No runup power check or magneto check was done. During takeoff he thought that the aircraft was not generating enough power to get airborne. He aborted the takeoff and ran off the end of the rwy into longer grass and brush. The nose wheel hit a tree stump and collasped. The ASI checked the fuel tank sumps and observed redish brown thick water from both sumps.
As the FAA filed it
^PRIVACY DATA OMITTED^ WAS ATTEMPTING TO TAKEOFF FROM A GRASS RWY. NO RUNUP POWER CHECK OR MAGNETO CHECK WAS DONE. DURING TAKEOFF HE THOUGHT THAT THE AIRCRAFT WAS NOT GENERATING ENOUGH POWER TO GET AIRBORNE. HE ABORTED THE TAKEOFF AND RAN OFF THE END OF THE RWY INTO LONGER GRASS AND BRUSH. THE NOSE WHEEL HIT A TREE STUMP AND COLLASPED. THE ASI CHECKED THE FUEL TANK SUMPS AND OBSERVED REDISH BROWN THICK WATER FROM BOTH SUMPS.