CEN16LA175

NTSB accident investigation · Airborne Windsports PTY Edge X Classic · Rush City, MN · May 5, 2016

Accident · FatalLimited investigationFinal report
Date
May 5, 2016, 10:25 local (15:25 UTC)
Place
Rush City, MN
Injuries
1 fatal
Damage
Destroyed
Phase of flight
Initial climb
Aircraft
N701FPAirborne Windsports PTY Edge X Classic
Defining event
Initial climb: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Completed · report December 12, 2016
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA Flight Standards District Office
Case key
93124

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The student pilot's failure to maintain the appropriate pitch attitude during initial climb, which resulted in an aerodynamic stall. Contributing to the accident was the student pilot’s decision to conduct a solo flight without a solo endorsement in an aircraft in which he had no experience flying.

Findings · 5

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The student pilot was conducting a solo personal flight in the weight-shift-control aircraft. Video footage showed the airplane taking off, climbing to an estimated altitude of 300 to 400 ft, banking sharply left, descending, and then impacting terrain in a steep, nose-down attitude. The student did not have any solo endorsements on his student pilot certificate. The student had logged 14 hours in a different weight-shift-control aircraft but had never flown the accident aircraft type. The student's flight instructor said that he did not feel the student was ready to fly solo and that he had not endorsed him for solo flight. He further stated that the student mismanaged takeoffs and landings and had the tendency to "leave the [control] bar out" after takeoff instead of letting it come back, which increased the aircraft's pitch attitude and caused it to climb too steeply. It is likely that the student increased the aircraft's pitch attitude too much during the initial climb, which led to his loss of aircraft control and an aerodynamic stall.

Factual narrative

HISTORY OF FLIGHT On May 8, 2016, about 1025 central daylight time, an Airborne Windsport Edge X Classic weight-shift control aircraft, N701FP, impacted terrain at Rush City Airport (ROS), Rush City, Minnesota. The student pilot, the sole occupant on board, was fatally injured. The aircraft was substantially damaged. The aircraft was registered to and operated by the pilot of Pine City, Minnesota, under the provisions of 14 Code of Federal Regulations Part 91 as a personal flight. Visual meteorological conditions prevailed at the time of the accident, and no flight plan had been filed. The local flight was originating at the time of the accident. According to a video provided by the Chisago County Sheriff's Office, the aircraft took off on runway 16, climbed to an estimated altitude of 300 to 400 feet, banked sharply to the left, descended, and impacted terrain in a steep nose-down attitude. The engine could be heard producing power at impact. Examination of the wreckage revealed no evidence of pre-impact mechanical malfunctions or failures. PERSONNEL (CREW) INFORMATION The pilot held a student pilot certificate with no solo endorsements. He also held a third class airman medical certificate, dated April 7, 2016, with the restriction, "Must have available glasses for near vision." Examination of the pilot's flight logbook revealed 13 entries made from March 22, to May 6, 2016. The entries indicated the pilot had logged a total of 21.9 hours – 4.6 hours in a Cessna 172, 3.3 hours in a Cessna 150, and 14.0 in an Air Creation USA ARV TANARG, another weight-shift-control aircraft similar to N701FP. The latter flights occurred at Marana Regional Airport (AVQ), Marana, Arizona, between April 18 and April 20. The accident flight was the first flight the pilot had made in N701FP. He had not flown a weight-shift control aircraft since April 20. He did, however, take a lesson in a Cessna 172 two days before the accident. A Federal Aviation Administration (FAA) inspector telephoned the pilot's flight instructor in Marana, Arizona. The instructor told the inspector that he did not feel the pilot was ready to solo; therefore, he did not endorse him for solo flight in his pilot logbook. The instructor stated the pilot mismanaged takeoffs and landings, and had the tendency to "leave the bar out" after takeoff "instead of letting it come back," causing the aircraft to increase pitch attitude and climb steeply. The instructor said that control in a weight-shift aircraft differs from that of a conventional airplane. To climb, you push the control bar forward and to descend, you pull back on the control bar. The instructor said this tends to be an issue for new pilots, especially those who are mixing their training between fixed wing airplanes and weight shift control aircraft. The instructor added that there is a considerable difference in the performance of the aircraft with just one person on board in that it will climb at a considerably greater rate when flownsolo. MEDICAL AND PATHOLOGICAL INFORMATION According to the autopsy report, prepared by the Midwest Medical Examiner's Office, death was attributed to "multiple blunt force injuries." According to FAA's Civil Aeromedical Institute's (CAMI) toxicology report, no carbon monoxide or ethanol were detected in cavity blood or vitreous, respectively. Ranitidine was detected in urine. According to FAA's Forensic Toxicology, ranitidine is an anti-histamine used in the treatment of gastric acid secretion. According to the Midwest Medical Examiner's toxicology report, ranitidine and caffeine were detected in urine.

Aircraft

Registration
N701FP
Reported as
Airborne Windsports PTY Edge X Classic (NO SERIES)
Category
Weight-shift
Serial number
X-582-1088
Built
2007
Airframe hours
327
Engine
Rotax 582UL DCDI, 65 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental light sport (Special)
Last inspection
Condition · November 29, 2015
Departed
KROS · Rush City, MN
Destination
KROS · Rush City, MN
Airport
KROS · Rush City Regional, runway 16, 4,397 × 75 ft, asphalt
Equipment
Airframe parachute, Handheld GPS

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
58
Injuries
Fatal
Certificate
Student
Medical
Class 3, With waivers/limitations
Seat
Front
Restraint
4-point
Toxicology
Performed
Flight hours
22 total · 14 in this make and model · 22 in the last 90 days · 16 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
200° at 6 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
59 °F, dew point 32 °F
Altimeter
30.03 inHg
Observed at
KROS

Docket · 7

The files NTSB released with the investigation on October 13, 2016, on NTSB’s docket system: statements, records, photos and specialists’ reports. 6.6 MB in all.