- Date
- September 14, 2008, 18:44 local (23:44 UTC)
- Place
- Collinsville, OK
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Approach
- Aircraft
- N531MSSukhoi SU-31M
- Defining event
- Approach-VFR pattern final: Controlled flight into terr/obj (CFIT)
- Weather
- Visual (VMC) · Day
- Status
- Completed · report January 22, 2009
- Report
- Approved by Office Director
- Parties
- FAA FSDO
- FAA report
- 20080914845119A
- Case key
- 68928
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 clearance from marked transmission lines while on final approach.
Findings · 2
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 entered the traffic pattern in the single seat, tail-wheel-equipped, experimental airplane for landing to runway 35. When he turned to final approach "everything looked normal." On short final, the pilot stated that he saw orange markers on wires just prior to contact with transmission lines. After cutting through two transmission lines, the pilot aborted the landing and performed a go-around. A visual inspection from another aircraft confirmed that the landing gear appeared to be intact. The pilot stated that the airplane was "shaking violently," but was controllable, and the pilot landed safely. The pilot shut down after landing and exited the aircraft normally. A Federal Aviation Administration inspector responded to the scene and confirmed substantial damage to the main wing spar, left aileron, and landing gear. One propeller blade was missing approximately 18 inches. The electrical transmission lines were replaced by the local power company.
Factual narrative
The pilot entered the traffic pattern in the single seat, tail wheel equipped, experimental airplane for landing to runway 35. When he turned to final approach "everything looked normal." On short final, the pilot stated that he saw orange markers on wires just prior to contact with transmission lines. After cutting through two transmission lines, the pilot aborted the landing and performed a go-around. A visual inspection from another aircraft confirmed that the landing gear appeared to be intact. The pilot stated that the airplane was "shaking violently," but was controllable, and the pilot landed safely. The pilot shut down after landing and exited the aircraft normally. A Federal Aviation Administration Inspector responded to the scene and confirmed substantial damage to the main wing spar, left aileron, and landing gear. One propeller blade was missing approximately 18 inches. The electrical transmission lines were replaced by the local power company.
Aircraft
- Registration
- N531MS
- Reported as
- Sukhoi SU-31M
- Category
- Airplane
- Serial number
- 02-01
- Airframe hours
- 261
- Engine
- Vedeneyev M14P, 360 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Airworthiness certificate
- Special, Experimental (Special)
- Last inspection
- Annual · August 20, 2008
- Departed
- KGCM · Claremore, OK
- Destination
- OK01 · Vera, OK
- Airport
- OK01 · Sky Haven Airpark, runway 35, 4,400 × 75 ft, grass/turf
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
- 48
- Injuries
- None
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Medical
- Class 3, Without waivers/limitations
- Last flight review
- June 8, 2008
- Seat
- Single
- Flight hours
- 1,391 total · 127 in this make and model · 1,343 as pilot in command · 40 in the last 90 days · 30 in the last 30 days · 7 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 340° at 13 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 68 °F, dew point 63 °F
- Altimeter
- 30.09 inHg
- Observed at
- KTUL, 14 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.