- Date
- June 3, 2013, 13:00 local (18:00 UTC)
- Place
- Cookson, OK
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Approach
- Aircraft
- N319MACub Crafters CCK
- Defining event
- Approach-VFR pattern final: Fuel contamination
- Weather
- Visual (VMC) · Day
- Status
- Completed · report July 23, 2013
- Report
- Approved by Office Director
- NTSB office
- Central Region
- Parties
- FAA Flight Standards District Office
- FAA report
- 20130603010489A
- Case key
- 87090
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
A total loss of engine power due to water contamination in the fuel. Contributing to the accident was the pilot's failure to check the fuel during the preflight, and failure to check the fuel storage tank’s fuel filter/water separator.
Findings · 4
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 engine lost power during the approach for landing and the restart attempt was unsuccessful. The pilot attempted to make a forced landing on a narrow gravel road. The left wing struck the top of a tree; the airplane spun around and impacted the ground. The wings received substantial damage. Post-accident examination revealed water in the fuel, in the carburetor, and in the storage supply tank. The pilot surmised that the water was likely due to recent heavy rain showers. He admitted he failed to check the fuel when he preflighted the airplane, and overlooked checking the fuel storage tank’s fuel filter/water separator.
Factual narrative
The pilot reported that as he made a teardrop turn towards the airport, the engine lost power. Shortly thereafter, it resumed developing power. The engine lost power and resumed developing power on two more occasions. The engine lost power a fourth time but did not regain power. The pilot switched the fuel selector from both tanks to one tank, and turned on the backup ignition. The engine would not resume operation. The pilot realized he did not have enough airspeed or altitude to glide to the runway so elected to make a forced landing on a narrow gravel road. As he approached the road, the left wing struck the top of a tree, spinning the airplane around. The pilot said the airplane made a hard impact with the ground. The left wing leading edge sustained compression damage, and the main landing gear was spread apart. Post-accident examination revealed water in the fuel. The carburetor was opened and a “substantial” amount of water was drained. Water was also found in the pilot's fuel storage tank. The pilot surmised that the water was likely due to recent heavy rain showers. The pilot admitted he failed to check the fuel when he preflighted the airplane, and he overlooked checking the fuel storage tank’s fuel filter/water separator.
Aircraft
- Registration
- N319MA
- Reported as
- Cub Crafters CCK
- Category
- Airplane, amateur-built
- Serial number
- CCK-1865-0019
- Airframe hours
- 62
- Engine
- Cub Crafters CC340, 180 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Operator
- Dennis R. Stephen
- Registered owner
- Dennis R. Stephen
- Airworthiness certificate
- Special, Experimental light sport (Special)
- Last inspection
- Condition · December 22, 2012 · 62 hours before
- Departed
- 44M · Cookson, OK
- Destination
- 44M · Cookson, OK
- Airport
- 44M · Tenkiller Lake, runway 05, 2,600 × 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
- 68
- Injuries
- None
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Medical
- Class 3, With waivers/limitations
- Last flight review
- February 1, 2013
- Seat
- Front
- Flight hours
- 2,000 total · 62 in this make and model · 24 in the last 90 days · 8 in the last 30 days
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 180° at 3 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 77 °F, dew point 57 °F
- Altimeter
- 29.96 inHg
- Observed at
- KTQH, 14 nm away
Docket · 2
The files NTSB released with the investigation on June 14, 2013, on NTSB’s docket system: statements, records, photos and specialists’ reports. 405 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.