CEN09LA134

NTSB accident investigation · Inman J D Kolb Mark III · Ozark, AR · January 7, 2009

Accident · Serious injuriesLimited investigationFinal report
Date
January 7, 2009, 11:00 local (17:00 UTC)
Place
Ozark, AR
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N313JDInman J D Kolb Mark III
Defining event
Initial climb: Fuel contamination
Weather
Visual (VMC) · Day
Status
Completed · report September 10, 2009
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA
FAA report
20090107000489A
Case key
73239

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 loss of engine power due to fuel contamination. Contributing to the accident was the pilot maintaining a high angle of attack during takeoff, which resulted in an inadvertent stall when the engine failed.

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.

Fluids: fuelAircraft › Fluids/misc hardware · Fluid conditionInman J D KOLB MARK III: 1 caseAll aircraft: 1,695 casesProbable cause
Performance/control parameters: angle of attackAircraft › Aircraft oper/perf/capability · Not attained/maintainedInman J D KOLB MARK III: 1 caseAll aircraft: 990 casesProbable cause

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

During takeoff, about 20 feet above the ground, the airplane experienced a loss of engine power. The sport pilot was unable to recover from a nose-high attitude prior to the airplane stalling and landing hard. During the landing rollout, the airplane contacted a berm resulting in substantial damage to the airplane and serious injuries to the pilot. An examination of the airplane revealed fuel contamination. The source of the fuel contamination could not be determined.

Factual narrative

On January 7, 2009, about 1100 central standard time, an Inman Kolb Mark III airplane, N313JD, piloted by a sport pilot, was substantially damaged following a loss of power and subsequent forced landing at a private airstrip near Ozark, Arkansas. The pilot was seriously injured. Visual meteorological conditions prevailed at the time of the accident. The personal flight was being conducted under the provisions of Title 14 CFR Part 91 without a flight plan. According to a statement provided by the pilot, he had added 5 gallons of 91-octane automobile fuel to the fuel tank prior to flight. He reported that a sump of the fuel did not reveal any contaminates. After completing a 10-minute local flight the pilot landed. He then decided to take off again. During takeoff he rotated the airplane at 65 miles per hour (mph) and was about 20 feet above the ground when the engine stopped producing power. The pilot could not pitch the nose of the airplane down before the airplane stalled. The airplane descended and experienced a hard landing. During the landing, the airplane departed the runway and collided with a berm. Substantial damage was sustained to the airplane's left aileron. An on-scene examination was conducted and control continuity and throttle continuity was established. Two fuel samples, taken from the airplane's fuel sump drain, revealed the presence of white particles. The source of the fuel contaminates could not be determined.

Aircraft

Registration
N313JD
Reported as
Inman J D Kolb Mark III
Category
Airplane, amateur-built
Serial number
M3139
Airframe hours
233
Engine
Bombardier Rotax, 65 hp, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Tate Isaac
Registered owner
Tate Isaac
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · April 20, 2008 · 30 hours before
Departed
Ozark, AR
Destination
Ozark, AR
Airport
Private Airport

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
71
Injuries
Serious
Certificate
Sport Pilot
Airplane ratings
Single-engine land
Medical
Sport pilot, Unknown
Last flight review
January 8, 2008
Seat
Left
Flight hours
500 total · 100 in this make and model · 30 in the last 90 days · 10 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
250° at 6 knots
Visibility
10 statute miles
Temperature
50 °F, dew point 27 °F
Altimeter
29.73 inHg
Observed at
FSM, 36 nm away

Docket · 3

The files NTSB released with the investigation on July 22, 2009, on NTSB’s docket system: statements, records, photos and specialists’ reports. 711 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.