ERA10CA072

NTSB accident investigation · Airframes Unlimited Coyote · Indian Trail, NC · November 15, 2009

Accident · Serious injuriesData collectionFinal report
Date
November 15, 2009, 13:31 local (18:31 UTC)
Place
Indian Trail, NC
Injuries
2 serious
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N59748Airframes Unlimited Coyote
Defining event
Enroute-cruise: Loss of engine power (partial)
Weather
Visual (VMC) · Day
Status
Completed · report March 23, 2010
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
Case key
75084

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

A loss of engine power due to carburetor icing.

Findings · 1

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.

Temp/humidity/pressure: conducive to carburetor icingEnvironmental issues › Conditions/weather/phenomena · Effect on equipmentAirframes Unlimited COYOTE: 1 caseAll aircraft: 435 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

Prior to departure, the pilot visually inspected the fuel system of the powered-parachute and verified that the fuel tank was full. He departed from a pasture, flew to a nearby airport to practice a touch-and-go, and then was returning to their departure point. At approximately 1,000 feet above the ground (agl) the pilot noticed he was unable to hold his altitude and maintain airspeed. While in a shallow descent the pilot turned on the electric fuel pump and cycled the throttle. The engine responded to the inputs; however, would not achieve full power. Approximately 700 feet agl the pilot shut-down the engine over a field in which he was preparing to make an emergency landing. He began to perform a shallow S-turn maneuver to decrease his altitude. As he turned to the right the passenger compartment maneuvered outside the veil of the canopy above causing a rapid decrease in altitude; not able to make his selected landing site, the pilot elected to land straight ahead into the trees. The powered-parachute impacted several trees and substantially damaged the metal structure. Review of the carburetor icing probability chart revealed that the temperature and dew point were conducive to carburetor icing at cruise and glide power, the powered-parachute was not equipped with carburetor heat.

Factual narrative

Prior to departure, the pilot visually inspected the fuel system of the powered-parachute and verified that the fuel tank was full. He departed from a pasture, flew to a nearby airport to practice a touch and go, and then was returning to their departure point. At approximately 1,000 feet above the ground (agl) the pilot noticed he was unable to hold his altitude and maintain airspeed. While in a shallow descent the pilot turned on the electric fuel pump and cycled the throttle. The engine responded to the inputs however would not achieve full power. Approximately 700 feet agl the pilot shut-down the engine over a field in which he was preparing to make an emergency landing. He began to perform a shallow S-turn maneuver to decrease his altitude. As he turned to the right the passenger compartment maneuvered outside the veil of the canopy above causing a rapid decrease in altitude; not able to make his selected landing site, the pilot elected to land straight ahead into the trees. The powered-parachute impacted several trees and substantially damaged the metal structure. Review of the carburetor icing probability chart revealed that the temperature and dew point were conducive to carburetor icing at cruise and glide power, the powered-parachute was not equipped with carburetor heat.

Aircraft

Registration
N59748
Reported as
Airframes Unlimited Coyote
Category
Powered parachute
Serial number
JEN8675309
Airframe hours
103
Engine
Hirth 3203, 65 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental light sport (Special)
Last inspection
Condition · September 1, 2009 · 5 hours before
Departed
EQY · Monroe, NC
Destination
Stallings, NC

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
47
Injuries
Serious
Certificate
Sport Pilot
Medical
Class 3, With waivers/limitations
Last flight review
October 10, 2008
Seat
Front
Flight hours
163 total · 109 in this make and model · 105 as pilot in command · 23 in the last 90 days · 5 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
75 °F, dew point 48 °F
Altimeter
29.97 inHg
Observed at
EQY, 8 nm away

Docket · 2

The files NTSB released with the investigation on December 29, 2009, on NTSB’s docket system: statements, records, photos and specialists’ reports. 742 KB in all.