- Date
- March 24, 2010, 18:00 local (Mar 25, 2010, 01:00 UTC)
- Place
- Lebanon, OR
- Injuries
- 1 minor
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N6063MStinson 108-3
- Defining event
- Landing-landing roll: Loss of control on ground
- Weather
- Visual (VMC) · Day
- Status
- Completed · report July 1, 2010
- Report
- Approved by Office Director
- NTSB office
- Western Pacific Region
- Parties
- FAA (Portland FSDO)
- FAA report
- 20100324029989A
- Case key
- 75582
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 release his brake application after adding power to regain directional control during the landing roll.
Findings · 3
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.
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 of the tailwheel-equipped airplane completed a number of touch-and-go landings, and then made a full-stop landing so that he could taxi to the parking area to talk with some friends. When he took off again a few minutes later to do one final landing before putting the airplane away, he discovered that the wind speed had picked up and that he would be landing in a gusting crosswind. During the landing roll, which was along the leeward side of a row of hangars with occasional spaces between them, the airplane started turning toward the left side of the runway (into the wind). When the pilot found that full right brake and full right rudder was not enough to bring the airplane back to the right, he added a significant amount of engine power in an attempt to regain control. Although the airplane's ground track began to straighten after he added power, the pilot kept the right-wheel brake fully applied, resulting in the airplane attaining a nose-down attitude, whereupon the propeller began hitting the runway surface. With the propeller hitting the runway surface, the pilot found it necessary to reduce power, and therefore the airplane turned further left, and its left main wheel departed the left edge of the runway onto soft terrain. The left wheel then sank into the terrain, and with the right brake still fully applied, the airplane nosed over onto its back. The accident sequence resulted in substantial damage to the vertical stabilizer, left wing, and left wing lift strut.
Factual narrative
The pilot of the tailwheel-equipped airplane completed a number of touch-and-go landings, and then made a full-stop landing so he could taxi to the parking area to talk with some friends. When he took off again a few minutes later to do one final landing before putting the airplane away, he discovered that the wind speed had picked up, and that he would be landing in a gusting crosswind. During the landing roll, which was along the leeward side of a row of hangars with occasional spaces between them, the airplane started turning toward the left side of the runway (into the wind). When the pilot found that full right brake and full right rudder was not enough to bring the airplane back to the right, he added a significant amount of engine power in an attempt to regain control. Although the airplane's ground track began to straighten after he added power, the pilot kept the right wheel brake fully applied, resulting in the airplane attaining a nose-down attitude, whereupon the propeller began hitting the runway surface. With the propeller hitting the runway surface, the pilot found it necessary to reduce power, and therefore the airplane turned further left, and its left main wheel departed the left edge of the runway onto some soft terrain. The left wheel then sank into the terrain, and with the right brake still fully applied, the airplane nosed over onto its back. The accident sequence resulted in substantial damage to the vertical stabilizer, left wing, and left wing lift strut.
Aircraft
- Registration
- N6063M
- Reported as
- Stinson 108-3
- Category
- Airplane
- Serial number
- 108-4063
- Engine
- Continental O-470-R, 230 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Operator
- Knox Larry D
- Registered owner
- Knox Larry D
- Airworthiness certificate
- Standard, Normal
- Departed
- S30 · Lebanon, OR
- Destination
- S30 · Lebanon, OR
- Flight plan
- Unknown
- Airport
- S30 · Lebanon State, runway 34, 2,877 × 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
- 68
- Injuries
- Minor
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Medical
- Class 3, With waivers/limitations
- Last flight review
- October 24, 2009
- Seat
- Left
- Flight hours
- 797 total · 35 in this make and model · 12 in the last 90 days · 6 in the last 30 days · 2 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Variable at 8 knots, gusting 30
- Visibility
- 10 statute miles
- Lowest ceiling
- None
Docket · 2
The files NTSB released with the investigation on March 31, 2010, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.1 MB in all.
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.