What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) While conducting a part 91 cross country flight at approximately 400 feet AGL the pilot stated he inadvertently struck the engine fuel pump switch while taking a drink of water. This resulted in the engine failure. There was insufficient altitude for the pilot to perform a start. The pilot initiated an engine out landing by performing an autorotation. The aircraft landed hard and the main rotor blades struck the tail boom resulting in substantial damage.
As the FAA filed it
(-23) WHILE CONDUCTING A PART 91 CROSS COUNTRY FLIGHT AT APPROXIMATELY 400 FEET AGL THE PILOT STATED HE INADVERTENTLY STRUCK THE ENGINE FUEL PUMP SWITCH WHILE TAKING A DRINK OF WATER. THIS RESULTED IN THE ENGINE FAILURE. THERE WAS INSUFFICIENT ALTITUDE FOR THE PILOT TO PERFORM A START. THE PILOT INITIATED AN ENGINE OUT LANDING BY PERFORMING AN AUTOROTATION. THE AIRCRAFT LANDED HARD AND THE MAIN ROTOR BLADES STRUCK THE TAIL BOOM RESULTING IN SUBSTANTIAL DAMAGE.