GAA18CA549

NTSB accident investigation · Aviat A1 · Bentonville, AR · September 12, 2018

Accident · Minor injuriesData collectionFinal report
Date
September 12, 2018, 18:30 local (23:30 UTC)
Place
Bentonville, AR
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N868XAviat A1
Defining event
Approach-VFR go-around: Aerodynamic stall/spin
Weather
Visual (VMC) · Day
Status
Completed · report March 18, 2019
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20180912013469A
Case key
98290

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 exceedance of the airplane’s critical angle of attack during an attempted go-around after the airplane bounced, which resulted in an aerodynamic stall.

Findings · 2

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: angle of attackAircraft › Aircraft oper/perf/capability · Capability exceededAviat A-1B: 1 caseAll aircraft: 990 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotAviat A-1B: 33 casesAll aircraft: 9,295 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 pilot reported that, during landing, the tailwheel-equipped airplane bounced. The airplane then bounced again twice and veered left of the centerline, and he applied "stick back" to pin the tail down. He then applied full throttle to go around but did not relieve the back pressure on the stick. Subsequently, the airplane pitched up in a "very high" angle of attack, which resulted in an aerodynamic stall and spin and subsequent impact with the ground. The airplane sustained substantial damage to the fuselage. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Factual narrative

The pilot reported that, during landing the tailwheel-equipped airplane bounced. The airplane then bounced two additional times and veered left of the centerline, and he applied "stick back" to pin the tail down. He then applied full throttle to go around, but did not relieve the back pressure on the stick. Subsequently, the airplane pitched up in a "very high" angle of attack, which resulted in an aerodynamic stall and spin, and the airplane impacted the ground. The airplane sustained substantial damage to the fuselage. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Aircraft

Registration
N868X
Reported as
Aviat A1 (B)
Category
Airplane
Serial number
2351
Built
2006
Airframe hours
1,513.6
Engine
Lycoming IO-360-A1D6, 200 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Summit Aviation LLC, doing business as Summit Aviation LLC
Registered owner
Oz Aircraft LLC
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · January 24, 2018
Departed
VBT · Bentonville, AR
Destination
VBT · Bentonville, AR
Airport
VBT · Bentonville Muni/Louise M Thad, runway 18, 4,426 × 65 ft, asphalt
Equipment
Stall warning system

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
47
Injuries
Minor
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 2, Without waivers/limitations
Last flight review
June 9, 2018
Seat
Front
Restraint
4-point
Flight hours
150.3 total · 20.2 in this make and model · 57.2 as pilot in command · 42 in the last 90 days · 10.5 in the last 30 days · 0.2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
130° at 7 knots
Visibility
10 statute miles
Lowest ceiling
7,500 ft broken
Temperature
79 °F, dew point 66 °F
Altimeter
30.09 inHg
Observed at
KVBT

Docket · 2

The files NTSB released with the investigation on December 7, 2018, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.2 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.