DFW05CA120

NTSB accident investigation · Mayfield Sparrowhawk · Hondo, TX · May 14, 2005

Accident · No injuriesData collectionFinal report
Date
May 14, 2005, 14:00 local (19:00 UTC)
Place
Hondo, TX
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N8023YMayfield Sparrowhawk
Weather
Visual (VMC) · Day
Status
Completed · report September 13, 2005
Report
Approved by Office Director
Parties
San Antonio, Texas
FAA report
20050514007509A
Case key
61486

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 control of the gyrocraft during takeoff. A contributing factor was the failure of the pre-rotator cable.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of control - in flightTakeoff
Rotorcraft flight control - jammedFactor
Aircraft control - not maintainedPilot in commandCause
Roll overTakeoff - aborted

Analysis

The 5,600-hour pilot lost control of the gyrocraft during takeoff and the gyrocraft rolled over onto its left side. The pilot stated that prior to the flight he had adjusted the pre-rotator gear. Examination of the gyrocraft revealed that a worn internal bolt within the pre-rotator cable appeared jammed in the engaged position.

Factual narrative

On May 14, 2005, approximately 1400 central daylight time, a Mayfield Sparrowhawk single-engine gyrocraft, N8023Y, sustained substantial damage when it impacted the ground following a loss of control during takeoff from runway 08 at the Hondo Municipal Airport (HDO), near Hondo, Texas. The commercial pilot, sole occupant of the gyrocraft, was not injured. The gyrocraft was registered and operated by GBA Gyros of Phoenix, of Paradise Valley, Arizona. Visual meteorological conditions prevailed and a flight plan was not filed for the 14 Code of Federal Regulations Part 91 personal flight. The local flight was originating at the time of the accident.

The 5,600-hour pilot reported in the Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1/2) that the accident flight was the first flight after he had adjusted the pre-rotator gear. During takeoff, the gyrocraft yawed to the right and the pilot attempted to land. As the gyrocraft landed, it rolled over onto its left side.

Examination of the Subaru powered gyrocraft by an Federal Aviation Administration (FAA) inspector, who responded to the accident site, revealed that the tubular structure fuselage was bent and separated in various areas. The main rotor blade was also damaged. Examination of the pre-rotator cable revealed that a worn internal bolt appeared jammed in the engaged position.

Aircraft

Registration
N8023Y
Reported as
Mayfield Sparrowhawk
Category
Gyroplane, amateur-built
Serial number
2003003
Airframe hours
114
Engine
Subaru EJ 2.5, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Gba Gyros Of Phoenix LLC
Airworthiness certificate
Special, Experimental (Special)
Last inspection
100 hour · May 1, 2005 · 6 hours before
Departed
HDO · Hondo, TX
Airport
HDO · Hondo Municipal Aiport, runway 08

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
53
Injuries
None
Certificates
Commercial, Private
Airplane ratings
Single-engine land
Medical
Class 2, Without waivers/limitations
Last flight review
February 1, 2005
Seat
Left
Flight hours
5,600 total · 500 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
140° at 9 knots
Visibility
10 statute miles
Lowest ceiling
5,500 ft broken
Temperature
82 °F, dew point 66 °F
Altimeter
30.02 inHg
Observed at
HDO

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.