ERA09LA281

NTSB accident investigation · Polaris Motors 582 FIB · Lexington, SC · May 4, 2009

Accident · Serious injuriesLimited investigationFinal report
Date
May 4, 2009, 13:45 local (17:45 UTC)
Place
Lexington, SC
Injuries
2 serious
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N171MBPolaris Motors 582 FIB
Defining event
Initial climb: Aerodynamic stall/spin
Weather
Visual (VMC) · Day
Status
Completed · report June 17, 2010
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
FAA report
20090504007609A
Case key
73772

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 non-certificated pilot's failure to maintain airspeed during initial climb, which resulted in an aerodynamic stall. Contributing to the accident was the non-certificated pilot’s lack of experience in the make and model airplane.

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

According to the passenger, her father was the pilot. She stated that neither one of them had ever been in the experimental airplane before. She added that they "put their seatbelts on took off and came down." The passenger also reported that the engine ran continuously throughout the accident sequence. The pilot's son, who was watching the takeoff, stated that after rotation and during the climb, the airplane started a turn to the left toward rising terrain. The pilot attempted to climb over the rising terrain and trees. It appeared to the son that the airplane stalled and crashed into the trees. Examination of the airplane revealed no abnormalities that would have prevented normal operation of the airplane.

Factual narrative

On May 4, 2009, about 1345 eastern daylight time, an experimental Polaris Motors 582 FIB weight-shift aircraft, N171MB, crashed into trees and subsequently the ground shortly after takeoff from Lake Murray, Lexington, South Carolina. The personal flight was operated under the provisions of 14 Code of Federal Regulations Part 91. Visual meteorological conditions prevailed and no flight plan was filed for the local flight. The non-certificated pilot and passenger received serious injuries and the airplane sustained substantial damage. The flight was originating at the time of the accident. According to the passenger, her father was the pilot. She stated that neither of them had ever been in the airplane before. She added that they "put their seatbelts on took off and came down." When asked if the engine ran normally throughout the accident sequence, she replied, "yes it was running and sounded normal and never stopped." The pilot's son, who was watching the takeoff, stated that after rotation and during the climb, the aircraft started a turn to the left toward rising terrain. The pilot attempted to climb over the rising terrain and trees. It appeared to the son that the aircraft stalled and crashed into the trees. Examination of the airplane by a Federal Aviation Administration inspector found the airplane substantially damaged with the wings folded up and aft. Examination of the engine found both carburetors separated from the engine and hanging loose. Both carburetors had fuel in the fuel lines and float bowls. The engine was rotated and compression and engine continuity were established through to the accessory section. During examination of the spark plugs, an excess amount of fuel was found in the No. 1 cylinder. Examination of the three-bladed composite propeller found one propeller blade broken mid-span, while the remaining two propeller blades were not damaged and no scoring was noted on the blades' leading edges or surfaces.

Aircraft

Registration
N171MB
Reported as
Polaris Motors 582 FIB
Category
Weight-shift
Serial number
E3503-K897
Engine
Rotax 582E, 64 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
David Elgin Rowe
Registered owner
David Elgin Rowe
Airworthiness certificate
Special, Experimental (Special)
Departed
Lexington, SC
Destination
Lexington, SC

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
61
Injuries
Serious
Seat
Front

Weather

Conditions
Visual (VMC) · Day
Wind
220° at 5 knots
Visibility
10 statute miles
Lowest ceiling
9,000 ft broken
Temperature
72 °F, dew point 63 °F
Altimeter
30.02 inHg
Observed at
CAE, 11 nm away

Docket · 5

The files NTSB released with the investigation on April 23, 2010, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.7 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.