ANC96LA048

NTSB accident investigation · Stinson 108-3 · Soldotna, AK · March 30, 1996

Accident · No injuriesLimited investigationFinal report
Date
March 30, 1996, 15:30 local (19:30 UTC)
Place
Soldotna, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Taxi
Aircraft
N6443MStinson 108-3
Weather
Visual (VMC) · Day
Status
Completed · report September 19, 1996
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19960330009079A
Case key
2820

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 wind conditions. The gusty/crosswind condition was a related factor.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of control - on ground/waterTaxi - from landing
Weather condition - crosswindFactor
Weather condition - gustsFactor
Compensation for wind conditions - inadequatePilot in commandCause
Ground loop/swerve - inadvertentPilot in command
Dragged wing,rotor,pod,float or tail/skidTaxi - from landing

Analysis

The pilot landed a tundra tire and tail-wheel equipped airplane in a westerly direction and was slowing to begin taxiing to a parking area. At about that time, the airplane encountered a gust of wind from the right and went off the right side of the runway. The airplane received damage to the left wing tip, fuselage, and the left main gear attach point. The pilot estimated the wind was from the north at 16 gusting 22 knots.

Factual narrative

On March 30, 1996, about 1530 Alaska standard time, a tundra tire equipped Stinson 108-3, N6443M, ground looped while taxiing from landing at the Soldotna airport, Soldotna, Alaska. The airplane was being operated as a visual flight rules (VFR) cross-country personal flight when the accident occurred. The airplane, registered to and operated by the pilot, sustained substantial damage. The certificated private pilot, and the sole passenger, were not injured. Visual meteorological conditions prevailed. The flight departed Lake Clark, Alaska, about 1315.

The pilot reported that he landed on runway 25 and was slowing to begin taxiing to a parking spot. A gust of wind from the right produced a ground loop and the airplane slid off the right side of the runway. The pilot initially reported minor damage to the left wing. Further inspection on April 17, 1996, confirmed structural damage to the fuselage at the left main gear attach point.

At 1546, a surface observation at Kenai, Alaska, 8 miles northwest of the accident site was reporting, in part: Sky conditions and ceiling, clear; visibility, 70 miles; temperature, 40 degrees F; dew point, 34 degrees F; wind, 020 degrees at 13 knots; altimeter, 30.27 inHg. After landing, the pilot estimated the winds from the north at 16 knots with gusts to 22 knots.

Aircraft

Registration
N6443M
Reported as
Stinson 108-3
Category
Airplane
Serial number
108-4443
Engine
Franklin 6A4-165-B3, 165 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Thomas K. Gotcher
Airworthiness certificate
Standard, Normal
Departed
Lake Clark, AK
Destination
SXQ
Airport
SXQ · Soldotna, runway 25, 4,973 × 130 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
56
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
140 total · 60 in this make and model · 110 as pilot in command · 16 in the last 90 days · 11 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
20° at 13 knots
Visibility
70 statute miles
Lowest ceiling
None
Temperature
39 °F, dew point 34 °F
Altimeter
30.00 inHg
Observed at
ENA, 8 nm away

FAA reports on this event · 1

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