Accident Details
Probable Cause and Findings
The pilot’s failure to maintain adequate power and airspeed, which resulted in a loss of control, abrupt descent, and impact with terrain. Contributing to the accident was the pilot’s failure to obtain adequate experience in the gyroplane before making the flight.
Aircraft Information
Registered Owner (Historical)
Analysis
HISTORY OF FLIGHTOn April 29, 2013, about 0744 eastern daylight time, a Daniel J. Danies Dominator gyroplane incurred substantial damage after impacting terrain while in the local traffic pattern at Valkaria Airport (X59), Valkaria, Florida. The light sport pilot sustained fatal injuries. The gyroplane was registered to and operated by a private individual as a 14 Code of Federal Regulations (CFR) Part 91 personal flight. Visual meteorological conditions prevailed and no flight plan was filed for the local flight that departed X59 about 0740.
In an interview with a National Transportation Safety Board (NTSB) investigator, a certified flight instructor who witnessed and videotaped the flight stated that on the morning of the flight, the pilot ran up the engine and did his preflight checks at the approach end of runway 10, which was a closed runway. During this procedure, the pilot turned the engine off and then back on again for an unknown reason. The pilot then started a takeoff roll, engaged the rotor head pre-rotator, the gyroplane jerked to the left, and the pilot aborted the takeoff attempt. On taxi back, the pilot told the witness that the pre-rotator system was slipping. The pilot reached the approach end of runway 10, reengaged the pre-rotor and started a second takeoff roll. The witness stated that the takeoff roll was about 1,500 feet in length, and was an unusually long takeoff roll compared to the other gyroplane takeoffs that he had witnessed in the past.
The witness stated that the rotor blades slowly accelerated and the pilot lifted the aircraft off the runway to about 300 to 400 feet above ground level (agl). The witness added that the rotor blades were not "coning" as the pilot lifted off of the runway. The pilot made a left downwind in the local pattern and then flew over runway 10 at about 50 feet agl. The pilot then overflew the aircraft apron where several aircraft were parked and, as he approached runway 14, he made a left turn for a right downwind and right base turn for runway 14. After crossing the approach end of runway 14, the gyroplane entered a 30 degree pitch down attitude followed by an abrupt 45 degree pitch up attitude. As the gyroplane reached the top of the upward arc, it appeared to have lost much of its airspeed and subsequently began a downward descent. The gyroplane assumed a left wing down attitude just prior to impact with the apron on the east side of runway 14.
The same witness also stated that the pilot had acquired most of his flying experience in powered parachutes. The accident pilot had purchased the gyroplane about 5 months prior to the accident flight. The accident pilot was receiving instruction in dual seat gyroplanes at an off-site location. About two weeks before the accident, the pilot told friends that he had been "signed off" to solo in his single seat gyro. A NTSB investigator asked the witness "in his opinion, was the accident pilot ready to solo?" The witness stated "no."
A personal friend of the accident pilot, with about 160 hours of flight experience in gyroplanes, performed an uneventful preflight inspection on the accident gyroplane two days prior to the accident. The preflight was conducted so that the witness could conduct an initial test flight of the gyroplane before the accident pilot flew it for the first time; however, he was unable to test fly the gyroplane due to inclement weather at the airport. Prior to his first flight, the accident pilot practiced taxiing the gyroplane around the airport without the rotor blades attached to get a feel for the differential braking. According to the witness, the accident pilot was due to travel to his summer home in the northeastern United States on or about April 30, 2013, and wanted to see it fly before he left. The pilot planned to return to X59 two weeks later to trailer the gyroplane at his summer home. The witness also added that he would not have test flown the gyroplane on the morning of the accident because of the approximate 10 knot winds that were present at the airfield when he arrived at about 0815. The witness stated that the more experience that you have with a gyroplane increases your proficiency of flying in higher winds, and "if you are learning how to fly gyroplanes, you should be doing so with no wind." A NTSB investigator asked the witness "in his opinion, was the accident pilot ready to solo?" The witness stated "no." PERSONNEL INFORMATIONThe pilot, age 58 held a sport pilot certificate and a light sport aircraft repairman certificate with a rating for powered parachutes. Both certificates were issued on November 30, 2012. The limitation on the sport pilot certificate included, "holder does not meet International Civil Aviation Organization requirements." The limitation on the repairman certificate was for powered parachute only. A review of the pilot's logbooks revealed that the pilot had recorded 90.5 hours total flight time in powered parachutes, and he recorded 7.8 hours total flight time in two-seat gyroplanes, of which, 6.8 of those hours were logged as pilot-in-command. No time was recorded for single seat gyroplanes. The first endorsement in the pilot's logbook covered Federal Aviation Regulations Part 61.309 and 61.311 on April 6, 2013. The pilot received a signed but undated endorsement for FAR Part 61.309, 61.311, and 61.321 in his logbook by a flight instructor. AIRCRAFT INFORMATIONThe experimental, amateur-built, single-seat gyroplane, serial number 001, was manufactured in 2009, and was equipped with a fixed-pitched, semi-rigid, teetering, two-blade rotor system. It was powered by an uncertified 65-horsepower Rotax two-cycle engine, serial number 5381074. An uncertificated three bladed composite propeller was attached to the engine. A review of the engine logbooks revealed that a complete overhaul was performed on December 29, 2012. The last condition inspection of the engine was completed on April 1, 2013 at a tachometer time of 49.5 hours. There was no record of the engine total time prior to the engine overhaul. The airframe logbook was not located. METEOROLOGICAL INFORMATIONThe Melbourne International Airport (MLB), Florida 1153 recorded weather observation, located 10 nautical miles to the northwest, reported wind from 160 degrees at 06 knots, visibility 10 statute miles, few clouds at 3,800 feet, temperature 24°C, dew point 18°C, and an altimeter setting of 30.03 inches of mercury. AIRPORT INFORMATIONThe experimental, amateur-built, single-seat gyroplane, serial number 001, was manufactured in 2009, and was equipped with a fixed-pitched, semi-rigid, teetering, two-blade rotor system. It was powered by an uncertified 65-horsepower Rotax two-cycle engine, serial number 5381074. An uncertificated three bladed composite propeller was attached to the engine. A review of the engine logbooks revealed that a complete overhaul was performed on December 29, 2012. The last condition inspection of the engine was completed on April 1, 2013 at a tachometer time of 49.5 hours. There was no record of the engine total time prior to the engine overhaul. The airframe logbook was not located. WRECKAGE AND IMPACT INFORMATIONThe gyroplane came to rest about 400 feet inside the approach end of runway 14 on the north side apron, against a Cessna 172 parked on the ramp. The debris path bore 117 degrees magnetic at a width of 60 feet and a length of 80 feet.
Initial examination of the gyroplane by a Federal Aviation Administration (FAA) inspector and a National Transportation Safety Board (NTSB) investigator revealed that the gyroplane incurred substantial damage to the rotor blades, fracturing of the keel, and bending damage to the frame.
Pitch, roll, and yaw control continuity was verified on all control surfaces. The left rotor pitch control tube was severed by the propeller. The right rotor pitch control tube failed due to bending overload. The rudder and horizontal surfaces remained attached to each other, departed the airframe, and were cracked about 8 inches upward from the bottom of the vertical stabilizer. Suction and compression were verified on both engine cylinders and crankshaft continuity was verified through the engine to the accessory drive ring gear by rotating the propeller blades manually. Examination of the recovered airframe, engine, and flight control system components revealed no evidence of pre-impact mechanical malfunctions or anomalies that would have precluded normal operation.
A detailed summary of the airframe and engine examination is contained in the public docket. ADDITIONAL INFORMATIONIn a personal interview with the inventor of this gyroplane, he stated that the Dominator gyroplane is an inherently stabile machine. During flight, the gyroplane is designed to use the rotor speed to safely descend to the ground with little or no power. In reviewing the accident sequence, the inventor stated that the initial approach to runway 14 appeared normal. He stated that it appeared that the pilot seemed to "check" (decrease) his speed just prior to entering a vertical descent to the ground. He stated that the only way to get the gyroplane into this configuration is to have reduced power and the control stick slightly aft of center.
The pilot received instruction on dual seat gyroplanes with a tandem configuration. According to FAA records, the pilot had previously met the 14 CFR Part 61 requirements for a light sport aircraft certification. Per 14 CFR Part 61.321, the pilot was adding an additional category or class of aircraft to his existing light sport certification.
According to 14CFR Part 61.317, a sport pilot certificate does not list aircraft category and class ratings. When a candidate successfully passes the practical test for a sport pilot certificate, regardless of the light sport aircraft privileges sought, the FAA will issue a sport pilot certificate without any category and class ratings. The qualified instructor pilot will provide the pilot ...
Data Source
Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# ERA13FA219