CEN09LA299

NTSB accident investigation · Northwing Apache Sport · Franklinton, LA · May 13, 2009

Accident · Serious injuriesLimited investigationFinal report
Date
May 13, 2009, 07:30 local (12:30 UTC)
Place
Franklinton, LA
Injuries
2 serious
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N61740Northwing Apache Sport
Defining event
Takeoff: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Completed · report November 9, 2009
Report
Approved by Office Director
NTSB office
Central Region
Parties
Federal Aviation Administration
FAA report
20090513006769A
Case key
73838

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 pilot's failure to maintain airspeed which resulted in a stall. Contributing to the accident was the pilot's lack of flight experience in the weight-shift trike.

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.

Performance/control parameters: airspeedAircraft › Aircraft oper/perf/capability · Not attained/maintainedNorthwing APACHE SPORT: 1 caseAll aircraft: 1,681 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

On the second takeoff of the day, the weight-shift trike reached an estimated speed of 40 knots before the pilot pushed the flight control bar forward. The trike rotated, departed the runway, and climbed steeply to an altitude of around 100 feet. The passenger, a pilot with approximately 150 hours in a similar model trike, noted that the pilot did not return the control bar to the neutral position and the trike stalled. The passenger attempted to take control, but moments later the trike impacted the ground and came to rest in an inverted position on an adjacent golf course. The accident pilot was estimated to have purchased the trike three to four months previously and to have logged approximately 5 hours in type. Due to the extent of his injuries, the pilot was not able to be interviewed nor was he able to submit a NTSB accident form 6120.1. No record of an airman certificate was located for the pilot during the investigation. The passenger reported that he did not observe any mechanical anomalies with the trike before or during the attempted flight.

Factual narrative

On May 13, 2009, about 0730 central daylight time, a single-engine Northwing Apache Sport weight-shift trike, N61740, was substantially damaged following a loss of control during takeoff from the Franklinton Airport (2R7), Franklinton Louisiana. The pilot and passenger sustained serious injuries. The trike was registered to and operated by a private individual. Visual meteorological conditions prevailed and no flight plan was filed for the 14 Code of Federal Regulations Part 91 personal flight. According to the passenger, a pilot with approximately 150 hours in a similar model trike, the first flight of the day had originated at his house and had concluded at 2R7. While departing 2R7 the trike reached an estimated speed of 40 knots before the pilot pushed the flight control bar forward. The trike rotated, departed the runway, and climbed steeply to an altitude of around 100 feet. The passenger noted that the pilot did not return the control bar to the "neutral" position and the trike "stalled." The passenger attempted to take control, but moments later the trike impacted the ground and came to rest in an inverted position on an adjacent golf course. The passenger reported that he did not observe any mechanical anomalies with the trike before or during the attempted flight. The passenger further reported that the accident pilot had purchased the trike three to four months previously. He estimated that the pilot had logged approximately 5 hours in type, but had not been signed off for solo flight due to needed practice performing takeoffs and landings. No record of an airman certificate was located for the pilot during the investigation. Due to the extent of his injuries, the pilot was not able be interviewed nor was he able to submit a NTSB accident form 6120.1. A determination as to if the pilot intended the flight to be instructional was inconclusive.

Aircraft

Registration
N61740
Reported as
Northwing Apache Sport
Category
Weight-shift
Serial number
28142
Engine
Rotax 582, 65 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental light sport (Special)
Departed
2R7 · Franklinton, LA
Destination
2R7 · Franklinton, LA
Airport
2R7 · Franklinton Airport, runway 13, 3,000 × 75 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
54
Injuries
Serious
Medical
Unknown
Seat
Front
Flight hours
5 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
160° at 3 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
79 °F, dew point 75 °F
Altimeter
30.04 inHg
Observed at
HDC, 24 nm away

Docket · 2

The files NTSB released with the investigation on September 14, 2009, on NTSB’s docket system: statements, records, photos and specialists’ reports. 5.8 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.