GAA20CA064

NTSB accident investigation · New Glasair Sportsman GS-2 · Huntsville, AR · November 9, 2019

Accident · Minor injuriesData collectionFinal report
Date
November 9, 2019, 09:45 local (15:45 UTC)
Place
Huntsville, AR
Injuries
1 minor, 1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N24EPNew Glasair Sportsman GS-2
Defining event
Takeoff: Aerodynamic stall/spin
Weather
Visual (VMC) · Day
Status
Completed · report June 16, 2020
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20191109020919A
Case key
100550

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 pilot's failure to maintain proper pitch control during takeoff from a muddy, turf runway and his exceedance of the airplane's critical angle of attack during the initial climb, which resulted in an aerodynamic stall.

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.

Performance/control parameters: pitch controlAircraft › Aircraft oper/perf/capability · Incorrect use/operationAll aircraft: 526 casesProbable cause
Performance/control parameters: angle of attackAircraft › Aircraft oper/perf/capability · Not attained/maintainedAll aircraft: 990 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotAll aircraft: 9,295 casesProbable cause
Runway/land/takeoff/taxi surface: wet surfaceEnvironmental issues › Physical environment · Effect on operationAll aircraft: 141 casesProbable cause
Object/animal/substance: tree(s)Environmental issues › Physical environment · Contributed to outcomeAll aircraft: 933 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 pilot reported that, during the takeoff roll from a wet, turf runway, the airplane encountered mud and veered left. He applied aft pressure to the stick, and the airplane climbed into ground effect. The pilot pulled up and attempted to climb out of ground effect, but the airplane descended and impacted trees. The airplane sustained substantial damage to both wings and the fuselage. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Factual narrative

The pilot reported that, during the takeoff roll from a wet turf runway, the airplane encountered mud, and veered left. He applied aft pressure to the stick and the airplane climbed into ground-effect. The pilot "pulled up" and attempted to climb out of ground effect, but the airplane descended and collided with trees. The airplane sustained substantial damage to both wings and the fuselage. The pilot reported that there were no mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Aircraft

Registration
N24EP
Reported as
New Glasair Sportsman GS-2 (No Series)
Category
Airplane, amateur-built
Serial number
7466
Built
2018
Airframe hours
62
Engine
Lycoming YIO-390-EXP, 210 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Bray-Bryn Llc
Registered owner
Bray-Bryn Llc
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · May 1, 2019
Departed
H34 · Huntsville, AR
Destination
3M0 · Lakeview, AR
Airport
H34 · Huntsville Muni, runway 21, 1,250 × 60 ft, grass/turf
Equipment
Onboard weather, Satellite tracking device, ADS-B, Auto-pilot, Electronic multifunction display, Electronic primary flight display

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
57
Injuries
Minor
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, With waivers/limitations
Last flight review
September 9, 2019
Seat
Left
Restraint
3-point
Flight hours
711 total · 32 in this make and model · 711 as pilot in command · 32 in the last 90 days · 32 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
230° at 10 knots, gusting 15
Visibility
10 statute miles
Lowest ceiling
None
Temperature
50 °F, dew point 37 °F
Altimeter
30.20 inHg
Observed at
KASG, 18 nm away

Docket · 2

The files NTSB released with the investigation on January 30, 2020, on NTSB’s docket system: statements, records, photos and specialists’ reports. 3.6 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.