WPR12CA404

NTSB accident investigation · Korrison Tom Sparrow Hawk · Spanish Fork, UT · September 7, 2012

Accident · Minor injuriesData collectionFinal report
Date
September 7, 2012, 11:00 local (17:00 UTC)
Place
Spanish Fork, UT
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N51140Korrison Tom Sparrow Hawk
Defining event
Takeoff-rejected takeoff: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report December 5, 2012
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration
FAA report
20120907019749A
Case key
84967

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 directional control of the gyroplane during an aborted takeoff.

Findings · 2

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: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedKorrison Tom SPARROW HAWK: 1 caseAll aircraft: 3,958 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

The private pilot had been receiving dual instruction in a gyroplane. During the takeoff portion of his first solo flight in the gyroplane, it began drifting toward the edge of the runway. Although the pilot aborted the takeoff and tried to realign the gyroplane with the runway, his control inputs resulted in the gyroplane rolling onto its side, resulting in substantial damage to the fuselage and rotor blades. According to the pilot, there was no indication of any preimpact mechanical malfunction or failure that would have precluded normal operation.

Factual narrative

The private pilot, who held an airplane single engine land rating, had been taking dual instruction in a gyroplane. During the takeoff portion of his first solo flight in the gyroplane, it began drifting toward the edge of the runway. Although the pilot initiated an abort and tried to realign the gyroplane with the runway, his control inputs resulted in the gyroplane rolling onto its side, whereupon it sustained substantial damage. According to the pilot, there was no indication of any mechanical malfunction. Wind conditions were calm.

Aircraft

Registration
N51140
Reported as
Korrison Tom Sparrow Hawk
Category
Gyroplane, amateur-built
Serial number
SH2005006K
Engine
Subaru ALL MDLS A/B, 400 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
D'Ewart Jay C
Registered owner
D'Ewart Jay C
Airworthiness certificate
Special, Experimental (Special)
Departed
U77 · Spanish Fork, UT
Destination
U77 · Spanish Fork, UT
Airport
U77 · Spanish Fork - Springville, runway 12, 5,700 × 100 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
46
Injuries
Minor
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Without waivers/limitations
Seat
Left
Flight hours
90 total · 50 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
61 °F

Docket · 1

The files NTSB released with the investigation on October 5, 2012, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.5 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.