What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
According to pilot and passenger statement, the aircraft was preflighted and a fuel sample taken. The aircraft was runup without incident.
When the aircraft was performing its initial takeoff over the water, the aircraft had travelled approximately 50 years when it began to lose power. The pilot attempted to increase throttle to maintain rotor RPM but the rotor RPM decayed rapidly.
The aircraft was unable to maintain altitude and descended into approximately 8 feet of water. The pilot stated that the rotor RPM was severely low, to the point that he could clearly see each blade as it passed the 12 o'clock position.
The aircraft descended into the water in a wings level attitude and the cabin began to fill with water. The cabin doors had been removed during preflight so egress was uneventful.
The minor damage to the rotor blades was consistent with extremely slow moving rotor blades hitting a hard surface (the water).
As the FAA filed it
ACCORDING TO PILOT AND PASSENGER STATEMENT, THE AIRCRAFT WAS PREFLIGHTED AND A FUEL SAMPLE TAKEN. THE AIRCRAFT WAS RUNUP WITHOUT INCIDENT.
WHEN THE AIRCRAFT WAS PERFORMING ITS INITIAL TAKEOFF OVER THE WATER, THE AIRCRAFT HAD TRAVELLED APPROXIMATELY 50 YEARS WHEN IT BEGAN TO LOSE POWER. THE PILOT ATTEMPTED TO INCREASE THROTTLE TO MAINTAIN ROTOR RPM BUT THE ROTOR RPM DECAYED RAPIDLY.
THE AIRCRAFT WAS UNABLE TO MAINTAIN ALTITUDE AND DESCENDED INTO APPROXIMATELY 8 FEET OF WATER. THE PILOT STATED THAT THE ROTOR RPM WAS SEVERELY LOW, TO THE POINT THAT HE COULD CLEARLY SEE EACH BLADE AS IT PASSED THE 12 O'CLOCK POSITION.
THE AIRCRAFT DESCENDED INTO THE WATER IN A WINGS LEVEL ATTITUDE AND THE CABIN BEGAN TO FILL WITH WATER. THE CABIN DOORS HAD BEEN REMOVED DURING PREFLIGHT SO EGRESS WAS UNEVENTFUL.
THE MINOR DAMAGE TO THE ROTOR BLADES WAS CONSISTENT WITH EXTREMELY SLOW MOVING ROTOR BLADES HITTING A HARD SURFACE (THE WATER).
Other reports on N9507F · 1
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