WPR20CA166

NTSB accident investigation · Aviat A 1 · Glendive, MT · June 3, 2020

Accident · No injuriesClass 4 · Data collectionFinal report
Date
June 3, 2020, 15:00 local (21:00 UTC)
Place
Glendive, MT
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N8QTAviat A 1
Defining event
Landing: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration
FAA report
20200603011199A
Case key
101384

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 airplane control during landing in gusting wind condition which resulted in a collision with terrain.

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.

Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotAviat A-1: 4 casesAll aircraft: 9,295 casesProbable cause
Wind: gustsEnvironmental issues › Conditions/weather/phenomena · Contributed to outcomeAviat A-1: 1 caseAll aircraft: 1,199 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 the airplane was configured for landing on runway 30, and he intended to perform a three-point landing. He estimated that the wind was from 260° at 30 kts. When the airplane was about 1 ft above the runway surface, it encountered a microburst with a strong gust of wind which lifted the left wing. The pilot was unable to counteract the sudden attitude shift and the right wing drug on the ground. The pilot attempted to abort the landing as the left wing then impacted the ground, and the airplane became airborne shortly thereafter. The pilot remained in the airport traffic pattern and landed uneventfully. The left aileron was partially torn off as a result of the accident sequence. The pilot reported that there were no preimpact mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Aircraft

Registration
N8QT
Reported as
Aviat A 1 (Undesignat)
Category
Airplane
Serial number
1378
Built
1997
Airframe hours
996
Engine
Lycoming O-360-A1D, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · May 4, 2019 · 34 hours before
Departed
XWA · Williston, ND
Destination
GDV · Glendive, MT
Airport
GDV · Dawson Community, runway 30, 5,704 × 100 ft, asphalt
Equipment
Stall warning system, 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
71
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
BasicMed
Last flight review
September 10, 2019
Seat
Front
Restraint
3-point
Flight hours
477 total · 39 in this make and model · 428 as pilot in command · 45 in the last 90 days · 16 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
280° at 14 knots, gusting 20
Visibility
10 statute miles
Lowest ceiling
None
Temperature
77 °F, dew point 43 °F
Altimeter
29.88 inHg
Observed at
KGDV

Docket · 2

The files NTSB released with the investigation on October 9, 2020, on NTSB’s docket system: statements, records, photos and specialists’ reports. 5.0 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.