SEA08CA148

NTSB accident investigation · Aviat A-1B · Ogden, UT · May 31, 2008

Accident · No injuriesData collectionFinal report
Date
May 31, 2008, 14:45 local (20:45 UTC)
Place
Ogden, UT
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N172HYAviat A-1B
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report June 30, 2008
Report
Approved by Office Director
Parties
Federal Aviation Administration
FAA report
20080531835519A
Case key
68142

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

The pilot's failure to maintain directional control during landing. A contributing factor was the variable wind condition.

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: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedAll aircraft: 3,958 casesProbable cause
Wind: variable windEnvironmental issues › Conditions/weather/phenomena · Contributed to outcomeAll aircraft: 113 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 performed a wheel landing in a tailwheel-equipped airplane with variable wind conditions present. During the landing roll, the tail of the airplane began to settle as the airplane veered suddenly to the right. The pilot's efforts to correct the veer were unsuccessful and the airplane ground looped. Examination of the airplane revealed that the left main landing gear was underneath the fuselage and the outboard portion of the left wing was structurally damaged. The pilot stated there was no mechanical anomalies with the engine or flight control system at the time of the accident.

Factual narrative

The pilot performed a wheel landing in a tailwheel-equipped airplane with variable wind conditions present. During the landing roll, the tail of the airplane began to settle as the airplane veered suddenly to the right. The pilot's efforts to correct the veer were unsuccessful and the airplane ground looped. Examination of the airplane revealed that the left main landing gear was underneath the fuselage and the outboard portion of the left wing was structurally damaged. The pilot stated there was no mechanical anomalies with the engine or flight control system at the time of the accident.

Aircraft

Registration
N172HY
Reported as
Aviat A-1B
Category
Airplane
Serial number
2172
Engine
Lycoming O-360-A1P, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Michael Bues
Registered owner
Michael Bues
Airworthiness certificate
Standard, Normal
Departed
KCNY · Moab, UT
Destination
KOGD · Ogden, UT
Airport
KOGD · Ogden Hinkley Airport, runway 34, 5,195 × 150 ft, asphalt

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
52
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land, Single-engine sea
Medical
Class 3, Without waivers/limitations
Last flight review
November 1, 2006
Seat
Front
Flight hours
928 total · 304 in this make and model · 869 as pilot in command · 20 in the last 90 days · 10 in the last 30 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Variable at 5 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
75 °F, dew point 36 °F
Altimeter
30.02 inHg
Observed at
KOGD

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.