GAA17CA292

NTSB accident investigation · Airtime Cygnet · Casa Grande, AZ · May 21, 2017

Accident · Minor injuriesData collectionFinal report
Date
May 20, 2017, 17:30 local (May 21, 2017, 00:30 UTC)
Place
Casa Grande, AZ
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N168ATAirtime Cygnet
Defining event
Takeoff: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report August 3, 2017
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA/ FSDO
FAA report
20170520007649A
Case key
95204

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 flight instructor's failure to maintain directional control during takeoff in gusting crosswind conditions.

Findings · 4

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 · Instructor/check pilotAirtime CYGNET: 3 casesAll aircraft: 9,295 casesProbable cause
Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedAirtime CYGNET: 2 casesAll aircraft: 3,958 casesProbable cause
Wind: crosswindEnvironmental issues › Conditions/weather/phenomena · Effect on operationAirtime CYGNET: 1 caseAll aircraft: 1,008 cases
Wind: gustsEnvironmental issues › Conditions/weather/phenomena · Effect on operationAirtime CYGNET: 1 caseAll aircraft: 1,199 cases

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 flight instructor in the amphibious, float-equipped, weight-shift-controlled trike reported that he was demonstrating multiple touch-and-go landings for the student pilot, who was in the front seat of the tandem-seat trike. He added that, during the final approach, the wind was "light and variable," and the landing was "smooth and stable." He further added that, as power was applied to takeoff, a "gust of wind and dust came in from our left and got under the wing." Subsequently, the trike veered off the runway to the right and rolled over. The wing and fuselage sustained substantial damage. The flight instructor reported that there were no preaccident mechanical malfunctions or failures with the trike that would have precluded normal operation. An automated weather observation station at the accident airport recorded that, about the time of the accident, the wind was from 330° at 9 knots. The flight instructor reported the takeoff was from runway 5.

Factual narrative

The flight instructor in the amphibious float-equipped weight-shift controlled trike reported that, he was demonstrating multiple touch-and-go landings for the student pilot, who was in the front seat of the tandem seat trike. He added that during the final approach, wind was "light and variable" and the landing was "smooth and stable." He further added that as power was applied to takeoff, a "gust of wind and dust came in from our left and got under the wing." Subsequently, the trike veered off the runway to the right and rolled over. The wing and fuselage sustained substantial damage. The flight instructor reported that there were no preaccident mechanical malfunctions or failures with the trike that would have precluded normal operation. An automated weather observation station, at the accident airport, about the time of the accident, recorded wind 330° at 9 knots. The flight instructor reported the takeoff was on runway 5.

Aircraft

Registration
N168AT
Reported as
Airtime Cygnet (NO SERIES)
Category
Weight-shift
Serial number
00107
Built
2016
Airframe hours
35
Engine
Rotax 912, 100 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Airworthiness certificate
Special, Special light-sport (Special)
Departed
CGZ · Casa Grande, AZ
Destination
CGZ · Casa Grande, AZ
Airport
CGZ · Casa Grande Muni, runway 5, 5,200 × 100 ft, asphalt
Equipment
None

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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Flight instructor
Age
31
Injuries
Minor
Certificates
Commercial, Sport Pilot, Private, Flight instructor, Airline transport
Airplane ratings
Single-engine sea, Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Without waivers/limitations
Seat
Rear
Restraint
Lap only
Flight hours
8,050 total · 50 in this make and model · 6,380 as pilot in command · 205 in the last 90 days · 49 in the last 30 days · 0 in the last 24 hours
Role
Student pilot
Age
53
Injuries
Minor
Certificate
Student
Medical
Sport pilot
Seat
Front
Restraint
Lap only
Flight hours
10 total

Weather

Conditions
Visual (VMC) · Day
Wind
330° at 9 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
90 °F, dew point 25 °F
Altimeter
29.79 inHg
Observed at
KCGZ

Docket · 3

The files NTSB released with the investigation on July 13, 2017, on NTSB’s docket system: statements, records, photos and specialists’ reports. 5.6 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.