SEA96LA095

NTSB accident investigation · Stinson 108-2 · Cut Bank, MT · May 19, 1996

Accident · No injuriesLimited investigationFinal report
Date
May 19, 1996, 10:10 local (16:10 UTC)
Place
Cut Bank, MT
Injuries
3 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N9808KStinson 108-2
Weather
Visual (VMC) · Day
Status
Completed · report February 28, 1997
Report
Approved by Office Director
FAA report
19960519010889A
Case key
42367

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 wind conditions during the landing roll, which resulted in a loss of directional control and an inadvertent ground swerve. Factors relating to the accident were: the unfavorable wind conditions (crosswind and gusts), and rough terrain.

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/waterLanding - roll
Weather condition - crosswindFactor
Weather condition - gustsFactor
Compensation for wind conditions - inadequatePilot in commandCause
Directional control - not maintainedPilot in commandCause
Ground loop/swerve - inadvertentPilot in commandCause
On ground/water encounter with terrain/waterLanding - roll
Terrain condition - rough/unevenFactor
Main gear collapsedLanding - roll
Landing gear,main gear - overload

Analysis

After flying over the airport to determine wind direction, the pilot decided to land on runway 31. He reported that the winds were favoring runway 31 during his approach. As he landed and rolled out, the winds shifted to a left crosswind and were gusting. The airplane veered off the edge of the runway onto soft terrain. The right main landing gear collapsed and the right wing was bent. No preimpact mechanical malfunctions were reported. The reported wind conditions at the airport near the time of the accident were: wind direction from a magnetic bearing of 300 degrees at a speed of 16 knots, gusting to 23 knots.

Factual narrative

On May 19, 1996, at 1010 mountain daylight time, a Stinson 108-2 airplane, operated by the owner/pilot, collided with terrain during landing roll in Cut Bank, Montana, and was substantially damaged. The private pilot and his two passengers were not injured. Visual meteorological conditions prevailed and no flight plan had been filed. The personal flight departed from Lethbridge, Canada, and was conducted under 14 CFR 91.

The pilot stated that after flying over the Cut Bank Municipal Airport to determine wind direction, he decided to land on runway 31. The winds were favoring runway 31 during his approach. As he landed and rolled out, the winds "apparently shifted to the left" and were gusting. The airplane "weathervaned" and veered off the edge of the runway onto soft terrain. The right main landing gear collapsed and the right wing was bent. No pre-impact mechanical malfunctions were reported. The reported wind conditions at the airport near the time of the accident were: wind direction from a magnetic bearing of 300 degrees at a speed of 16 knots, gusting to 23 knots.

Aircraft

Registration
N9808K
Reported as
Stinson 108-2
Category
Airplane
Serial number
2808
Airframe hours
3,756
Engine
Franklin 6A4-165-B8, 165 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Dreyer, Robert E.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · May 15, 1996 · 20 hours before
Departed
CYQL · Lethbridge
Destination
CTB
Airport
CTB · Cutbank Municipal, runway 31, 5,300 × 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
45
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
168 total · 74 in this make and model · 82 as pilot in command · 41 in the last 90 days · 32 in the last 30 days · 7 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
300° at 16 knots, gusting 23
Visibility
10 statute miles
Lowest ceiling
6,000 ft broken
Temperature
57 °F, dew point 27 °F
Altimeter
29.00 inHg
Observed at
CTB

FAA reports on this event · 1

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