- Date
- August 2, 2011, 08:45 local (15:45 UTC)
- Place
- Republic, WA
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N3135JCarpenter Kolb Twinstar III
- Defining event
- Landing-landing roll: Loss of control on ground
- Weather
- Visual (VMC) · Day
- Status
- Completed · report December 19, 2011
- Report
- Approved by Office Director
- NTSB office
- Western Pacific Region
- Parties
- Federal Aviation Administration
- FAA report
- 20110802015379A
- Case key
- 81401
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 maintain 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 reported that he had not flown for several years and had just received training from a certified flight instructor. During his first solo flight since the training, he was conducting touch-and-go takeoffs and landings. On the fourth landing, the airplane veered off the runway to the left side and ground-looped. After departing the runway, the airplane impacted a metal obstruction with the left landing gear, substantially damaging the tubular fuselage structure.
Factual narrative
On August 2, 2011, at 0845 Pacific daylight time, a Carpenter Kolb Twinstar III, N3135J, veered off the runway during landing at Ferry County Airport, Republic, Washington. The airplane sustained substantial damage. The recreational pilot, who was operating under sport pilot privileges, was not injured. The flight was being operated under Title 14 Code of Federal Regulations Part 91. Visual meteorological conditions prevailed and no flight plan was filed. The pilot reported that he had not flown for several years. He had recently received training from a certified flight instructor, and was on his first solo flight since receiving the training. During this flight, the pilot was conducting touch-and-go takeoffs and landings. On the fourth landing on runway 35, the pilot reported that he tried to settle the tailwheel too soon and with too much speed. The airplane subsequently veered off the runway to the left side, and ground looped. After departing the runway, the airplane impacted a metal obstruction with the left landing gear. The tubular fuselage structure sustained substantial damage. The pilot reported no preimpact mechanical malfunctions or failures with the airframe or engine that would have precluded normal operation.
Aircraft
- Registration
- N3135J
- Reported as
- Carpenter Kolb Twinstar III
- Category
- Airplane, amateur-built
- Serial number
- 3-12
- Airframe hours
- 146
- Engine
- Rotax 582, 65 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Operator
- Kenton Carpenter
- Registered owner
- Kenton Carpenter
- Airworthiness certificate
- Special, Experimental (Special)
- Last inspection
- Condition · August 1, 2011 · 1 hours before
- Departed
- R49 · Republic, WA
- Destination
- R49 · Republic, WA
- Flight plan
- Unknown
- Airport
- R49 · Ferry County Airport, runway 35, 3,498 × 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
- 52
- Injuries
- None
- Certificate
- Recreational
- Airplane ratings
- Single-engine land
- Medical
- Class 3, With waivers/limitations
- Last flight review
- July 28, 2011
- Seat
- Left
- Flight hours
- 198 total · 128 in this make and model · 134 as pilot in command · 2 in the last 90 days · 2 in the last 30 days · 1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 10° at 6 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 70 °F, dew point 41 °F
- Altimeter
- 29.95 inHg
- Observed at
- KOMK, 37 nm away
Docket · 2
The files NTSB released with the investigation on November 3, 2011, on NTSB’s docket system: statements, records, photos and specialists’ reports. 900 KB 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.
Other investigations on N3135J · 1
Matched to the same aircraft by N-number and date.