CHI06CA018

NTSB accident investigation · Stinson 108-1 · Tea, SD · September 19, 2005

Accident · No injuriesData collectionFinal report
Date
September 19, 2005, 18:00 local (23:00 UTC)
Place
Tea, SD
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N8495KStinson 108-1
Weather
Visual (VMC) · Day
Status
Completed · report January 31, 2006
Report
Approved by Office Director
Parties
Federal Aviation Administration - Rapid City FSDO
FAA report
20050919034259A
Case key
62771

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 directional control during the landing rollout which resulted in the encountered ground loop.

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
Directional control - not maintainedPilot in commandCause
Ground loop/swerve - encounteredPilot in commandCause
On ground/water encounter with terrain/waterLanding - roll
Terrain condition - ground

Analysis

The airplane ground looped during the landing roll. The student pilot was flying solo at the time of the accident. The pilot reported that his first landing was "non-eventful" and that the airplane "performed well." The accident occurred on the second landing attempt. The pilot stated that during the landing rollout the airplane began "pulling very hard to the right" shortly after he "touched both brakes simultaneously... to slow the aircraft." The pilot reported that the "pull to the right was so strong that the aircraft began heading toward the side of the runway at about a 35 degree angle from [the runway] centerline." The pilot stated that he heard the "squeal of brakes" although he was "not applying brakes" while the airplane veered to the right. The pilot reported that he applied "hard left rudder" in an attempt to realign the airplane with the runway centerline. The pilot stated that the right landing main landing gear collapsed and the right wingtip impacted the ground. There were multiple tire tracks associated with the ground track of the airplane during the accident. These tire tracks were left by both the left and right main landing gear tires. The initial tire track was consistent with being left by the left main landing gear, arcing to the left. Next, there were two tire tracks marks, arcing to the right. These markings were consistent with being left by both the left and right main landing gear. The subsequent ground markings and tire track marks indicate the airplane ground looped to the left, with the right wing striking the terrain and the right main landing gear collapsing under the fuselage. No anomalies were detected with either brake system, and no discrepancies were noted during operational tests.

Factual narrative

This report is based on information received by the NTSB. Additional details may be found in the NTSB's public docket for this case. For further information, please contact the NTSB Office of Public Inquiries

Aircraft

Registration
N8495K
Reported as
Stinson 108-1
Category
Airplane
Serial number
108-1495
Airframe hours
2,291.23
Engine
Lycoming 0-435-1, 190 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Airworthiness certificate
Standard, Utility; Standard, Normal
Last inspection
Annual · February 1, 2005 · 18.2 hours before
Departed
Y14 · Tea, SD
Destination
Y14 · Tea, SD
Airport
Y14 · Marv Skie - Lincoln County, runway 34, 3,650 × 60 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
40
Injuries
None
Certificate
Student
Medical
Class 3, Without waivers/limitations
Seat
Left
Flight hours
83 total · 22 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
310° at 6 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
73 °F, dew point 54 °F
Altimeter
30.04 inHg
Observed at
FSD, 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.

Other investigations on N8495K · 1

Matched to the same aircraft by N-number and date.