WPR10LA032

NTSB accident investigation · Powrachute PC 2000 · Leadore, ID · October 25, 2009

Accident · Serious injuriesLimited investigationFinal report
Date
October 25, 2009, 10:30 local (16:30 UTC)
Place
Leadore, ID
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N4036UPowrachute PC 2000
Defining event
Landing-flare/touchdown: Aerodynamic stall/spin
Weather
Visual (VMC) · Day
Status
Completed · report April 19, 2010
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration
FAA report
20091025021369A
Case key
74952

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 NTSB’s determination of the probable cause, and any contributing factors.

The stuck throttle cable and the pilot's failure to maintain adequate airspeed during landing, which resulted in an inadvertent aerodynamic stall and hard landing.

Findings · 3

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings.

Analysis

The pilot of the powered parachute reported that while in cruise flight and after increasing engine power, he discovered that the throttle cables were stuck and inoperable. He then attempted to reduce power, but the power reduction was too slow so he elected to land in an open field.During the landing flare, about 10 to 15 feet above the ground, the airplane's chute stalled, which resulted in a hard landing and subsequent substantial damage to the powered parachute. The pilot reported that there were no anomalies with the airframe or engine prior to or during the flight, and he could not determine how the throttle had become inoperative.

Factual narrative

On October 25, 2009, about 1030 mountain daylight time, a Powrachute PC 2000 powered parachute, N4036U, sustained substantial damage following a forced landing near Leadore, Idaho. The pilot, who was the sole occupant, sustained serious injuries. Visual meteorological conditions prevailed at the time of the accident. The local flight was being operated in accordance with Title 14 Code of Federal Regulations Part 91, and a flight plan was not filed. The flight departed from the Leadore Airport (U00), Leadore, Idaho, about 0930. In a statement provided to the Safety Board investigator-in-charge (IIC), the pilot reported that while in cruise flight at an altitude of about 700 feet above ground level (agl), he attempted to increase engine power when he discovered that the throttle cable was stuck and inoperable. The pilot stated that when he retarded the throttle the engine power decreased "very slowly," at which time he elected to land in a large field. The pilot reported, "...at about 10 to 15 feet altitude, I tried to flare the chute to decrease my speed to land, but the chute stalled and I fell out of the sky." The pilot stated that damage to the aircraft included a bent wheel strut and structural damage to the propeller cage. The pilot further stated that he could not determine why the throttle cable had become stuck, and that there were no anomalies detected with the airframe or engine prior to or during the flight.

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident.

Aircraft

Registration
N4036U
Reported as
Powrachute PC 2000
Category
Powered parachute
Serial number
A045POW
Engine
Rotax 582, 65 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Dale Peterson
Registered owner
Ron Summers
Airworthiness certificate
Special, Experimental light sport (Special)
Departed
Leadore, ID
Destination
Leadore, ID

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
51
Injuries
Serious
Seat
Front
Flight hours
120 total · 120 in this make and model · 10 in the last 90 days · 5 in the last 30 days · 0 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
36 °F, dew point 25 °F
Altimeter
30.31 inHg
Observed at
SMN, 45 nm away

Docket · 2

The files NTSB released with the investigation on January 29, 2010, on NTSB’s docket system: statements, records, photos and specialists’ reports. 745 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.