CEN18LA137

NTSB accident investigation · Quicksilver GT 400 · Maxwell, IA · April 5, 2018

Accident · Serious injuriesClass 3 · LimitedFinal report
Date
April 5, 2018, 16:00 local (21:00 UTC)
Place
Maxwell, IA
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N2433ZQuicksilver GT 400
Defining event
Takeoff: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 3
NTSB office
Central Region
Parties
FAA
FAA report
20180405003349A
Case key
96990

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 noncertificated pilot's unfamiliarity with the airplane, which resulted in a loss of airplane control when the pilot encounter a wind gust.

Findings · 3

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.

Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotQuicksilver GT-400: 2 casesAll aircraft: 9,295 casesProbable cause
Performance/control parametersAircraft › Aircraft oper/perf/capability · Not attained/maintainedQuicksilver GT-400: 1 caseAll aircraft: 1,269 casesProbable cause

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 noncertificated pilot reported that he had just purchased the ultralight airplane. He added that he had not received a weather briefing before the flight. The previous owner reported that, earlier on the day of the accident, he flew a demonstration flight for the pilot in the airplane with “no issues.” He advised the pilot to use 10° of flaps for takeoff for improved performance; however, the previous owner saw the airplane take off without the flaps extended. Shortly after takeoff, he saw a wind gust push the airplane into a tree. The pilot reported he had no recollection of the accident. Examination of the airplane revealed that both wings and the fuselage had sustained substantial damage. Flight control continuity was established, and propeller damage was found that was consistent with the engine producing power at the time of impact. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. The pilot was unfamiliar with airplane make and model and reported having flown only 3.5 hours in the previous 20 years in a Cessna or Beechcraft airplane. When asked by the previous owner if the he was a pilot, the noncertificated pilot said, “yes”. Therefore, given the available evidence, it is likely that the noncertificated pilot, failed to maintain control of the ultralight airplane when he encountered the wind gust.

Factual narrative

On April 5, 2018, about 1600 central daylight time, a Quicksilver GT400 ultralight airplane, N2433Z, was substantially damaged when it was involved in an accident at Maxwell Airport (3NC7), Maxwell, Iowa. The pilot was seriously injured. The airplane was operated as a Title 14 Code of Federal Regulations (CFR) Part 91 personal flight. The pilot reported that he had just purchased the ultralight airplane and that he had not received a preflight weather briefing. The airplane’s previous owner reported that, earlier on the day of the accident, he completed a demonstration flight for the pilot in the airplane with “no issues.” He advised the pilot to use 10° of flaps for takeoff for improved performance; however, the previous owner saw the airplane take off without the flaps extended. After takeoff, he saw a wind gust push the airplane into a tree. The pilot reported he had no recollection of the accident. The pilot reported having flown only 3.5 hours in the previous 20 years in a Cessna or Beechcraft airplane and that did not hold a pilot certificate. The pilot indicated he thought the airplane was operated under 14 CFR Part 103; therefore, he believed that he did not require a pilot certificate. When asked by the previous owner if the he was a pilot, the noncertificated pilot said, “yes”. Examination of the airplane revealed that both wings and the fuselage had sustained substantial damage. Flight control continuity was established, and propeller damage was found that was consistent with the engine producing power at the time of impact. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Aircraft

Registration
N2433Z
Reported as
Quicksilver GT 400 (NO SERIES)
Category
Airplane
Serial number
GT2801487
Built
2003
Engine
Rotax 503, 50 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental light sport (Special)
Destination
KSKI · Sac City, IA
Airport
N/A · Private Strip
Equipment
Unknown

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
43
Injuries
Serious
Seat
Single
Restraint
5-point

Weather

Conditions
Visual (VMC) · Day
Wind
Variable at 4 knots
Visibility
10 statute miles
Temperature
34 °F, dew point 10 °F
Altimeter
30.25 inHg
Observed at
KIKV, 12 nm away

Docket · 4

The files NTSB released with the investigation on March 12, 2021, on NTSB’s docket system: statements, records, photos and specialists’ reports. 6.8 MB in all.

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.