SEA08CA118

NTSB accident investigation · Stinson 108-3 · Libby, MT · May 2, 2008

Accident · Minor injuriesData collectionFinal report
Date
May 2, 2008, 15:15 local (21:15 UTC)
Place
Libby, MT
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N1083Stinson 108-3
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
20080502833899A
Case key
67925

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 inadequate compensation for the crosswind gusts and failure to maintain directional control during the landing rollout.

Findings · 6

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.

Wind: crosswindEnvironmental issues › Conditions/weather/phenomena · Not specifiedStinson 108-3: 3 casesAll aircraft: 1,014 cases
Wind: gustsEnvironmental issues › Conditions/weather/phenomena · Not specifiedStinson 108-3: 5 casesAll aircraft: 1,201 cases
Performance/control parameters: crosswind correctionAircraft › Aircraft oper/perf/capability · Not attained/maintainedStinson 108-3: 1 caseAll aircraft: 184 casesProbable cause
Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedStinson 108-3: 11 casesAll aircraft: 3,969 casesProbable cause
Action: lack of actionPersonnel issues › Action/decision · PilotStinson 108-3: 1 caseAll aircraft: 792 cases
Runway/land/takeoff/taxi surfaceEnvironmental issues › Physical environment · Not specifiedStinson 108-3: 1 caseAll aircraft: 253 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 was in the process of lowering the tail to the ground after touchdown when the airplane veered to the right. Adding left rudder to counter the yaw was unsuccessful, and the airplane veered off the right side of the runway and nosed over. The pilot reported "...close to touchdown I was getting bumped from side to side from crosswind gusts." The pilot said there were no mechanical malfunctions or failures.

Factual narrative

The pilot was in the process of lowering the tail to the ground after touchdown when the airplane veered to the right. Adding left rudder to counter the yaw was unsuccessful, and the airplane veered off the right side of the runway and nosed over. The pilot reported "...close to touchdown I was getting bumped from side to side from crosswind gusts." The pilot said there were no mechanical malfunctions or failures.

Aircraft

Registration
N1083
Reported as
Stinson 108-3
Category
Airplane
Serial number
108-3535
Engine
Franklin 6A4165, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Jon S Dunham
Registered owner
Michael L Helburg
Airworthiness certificate
Standard, Normal
Departed
S59 · Libby, MT
Destination
S59 · Libby, MT
Airport
S59 · Libby Airport, runway 33, 5,000 × 75 ft, asphalt

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
66
Injuries
Minor
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3
Seat
Left
Flight hours
203 total · 70 in this make and model · 0 in the last 90 days · 0 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
300° at 7 knots
Visibility
10 statute miles
Lowest ceiling
None

FAA reports on this event · 1

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