WPR23LA053

NTSB accident investigation · Aviat A-1C-180 · Morgan, UT · December 3, 2022

Accident · No injuriesClass 4 · LimitedFinal report
Date
December 3, 2022, 11:00, time zone not recorded
Place
Morgan, UT
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N60WYAviat A-1C-180
Defining event
Maneuvering-low-alt flying: Low altitude operation/event
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
SLC FSDO
FAA report
20221203017809A
Case key
106416

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 clearance from snow covered terrain while maneuvering at low attitude. Contributing to the accident was the pilot’s loss of visual reference due to snow and flat light conditions.

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.

Light condition: flat lightEnvironmental issues › Conditions/weather/phenomena · Effect on personnelAviat A-1C-180: 1 caseAll aircraft: 42 casesProbable cause
Performance/control parameters: altitudeAircraft › Aircraft oper/perf/capability · Not attained/maintainedAviat A-1C-180: 1 caseAll aircraft: 1,310 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 of the tailwheel-equipped airplane reported that, the intention of the flight was to fly over a friend’s property to determine how much snow had accumulated. On a low approach without intent to land, the overcast sky and flat light made it difficult to determine his height above the field, and the airplane’s right wheel touched the soft snow and dug in. The pilot attempted a go-around, however the left main tire then dug in. He decided to land rather than lose directional control, however on rollout the airplane struck a snow drift that he could not see, and the airplane nosed over. The airplane sustained substantial damage to the left wing, vertical fin, and rudder. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Aircraft

Registration
N60WY
Reported as
Aviat A-1C-180
Category
Airplane
Serial number
3388
Built
2022
Engine
Lycoming O-360-A/P, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Cannon Land LLC
Airworthiness certificate
Standard, Normal
Last inspection
Annual · February 10, 2022 · 104 hours before
Departed
42U · Morgan, UT
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
55
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
BasicMed, Without waivers/limitations
Seat
Front
Restraint
3-point
Flight hours
801 total · 401 in this make and model · 615 as pilot in command · 26 in the last 90 days · 6 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
330° at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
28 °F, dew point 14 °F
Altimeter
30.29 inHg
Observed at
KOGD, 14 nm away
METAR
METAR KOGD 031853Z 33004KT 10SM CLR M02/M10 A3029 RMK AO2 SLP284 T10221100=

Docket · 2

The files NTSB released with the investigation on January 31, 2023, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.7 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.