DFW06LA028

NTSB accident investigation · Rehler Gyrocopter · New Braunfels, TX · November 11, 2005

Accident · FatalLimited investigationFinal report
Date
November 11, 2005, 17:05 local (23:05 UTC)
Place
New Braunfels, TX
Injuries
1 fatal
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N100KRRehler Gyrocopter
Weather
Visual (VMC) · Day
Status
Completed · report March 28, 2006
Report
Approved by Office Director
Parties
FAA/FSDO
FAA report
20051111027969A
Case key
62809

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 pilot's failure to maintain control while landing. A contributing factor was the high winds.

Analysis

The 700-hour private pilot/builder/owner was approaching Runway 13 when a gust of wind turned the gyrocopter sideways. The gyrocopter subsequently flipped inverted and impacted the runway. Examination of the gyrocopter did not reveal any mechanical deficiencies. The winds at the airport were reported from 150 degrees at 12 knots near the time of the accident.

Factual narrative

On November 11, 2005, about 1705 central standard time, an experimental Rehler gyrocopter, N100KR, was substantially damaged following a loss of control while on approach to Runway 13 at the New Braunfels Municipal Airport, near New Braunfels, Texas. The private pilot/builder/owner, sole occupant of the gyroplane, was fatally injured. Visual meteorological conditions prevailed and no flight plan was filed for the personal flight conducted under 14 Code of Federal Regulations Part 91. The local flight originated at the New Braunfels Airport at an undetermined time.

Several witnesses observed the gyrocopter as it descended and approached the runway. When the gyrocopter was about 30 feet above the ground, a gust of wind turned the aircraft sideways, and the gyrocopter "flipped inverted and impacted the runway on its main rotor system." Some of the witnesses reported hearing the engine make a power change before ground impact.

A Federal Aviation Administration (FAA) inspector performed an on-scene examination of the wreckage. The inspector established flight and engine control continuity and found fuel in the fuel tank. No mechanical deficiencies or anomalies were noted.

The pilot designed and constructed the gyrocopter. According to his website, he described his gyrocopter as a single-place, experimental aircraft powered by a 100 HP, four-cylinder, four- cycle Rotax engine. The gyrocopter featured a 27-foot-diameter main rotor system, with a three-bladed, 68-inch-diameter propeller installed in the pusher configuration. The gyrocopter was reported to be capable to cruise between 35 and 95 miles per hour.

The pilot's last FAA third class medical was issued on June 9, 2004. At that time, the pilot reported a total of 700 flight hours. Toxicological testing was performed by the FAA's Accident Research Laboratory, Oklahoma City, Oklahoma.

Weather reported at the airport at 1751 was wind from 150 degrees at 12 knots, visibility 10 statute miles, broken clouds at 6,000 feet, overcast clouds at 7,000 feet, temperature 81 degrees Fahrenheit, dew point 62 degrees Fahrenheit, and a barometric pressure setting of 29.97 inches of Mercury.

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 flightApproach
Aircraft control - not maintainedPilot in commandCause
Weather condition - high windFactor
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - runway

Aircraft

Registration
N100KR
Reported as
Rehler Gyrocopter
Category
Gyroplane, amateur-built
Serial number
1
Engine
Rotax 912S, 100 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Kenneth Rehler
Airworthiness certificate
Special, Experimental (Special)
Departed
BAZ · New Braunfels, TX
Airport
BAZ · New Braunfels Municipal, runway 13, 5,352 × 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
63
Injuries
Fatal
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Without waivers/limitations
Seat
Center
Toxicology
Performed
Flight hours
700 total

Weather

Conditions
Visual (VMC) · Day
Wind
150° at 12 knots
Visibility
10 statute miles
Lowest ceiling
6,000 ft broken
Temperature
81 °F, dew point 63 °F
Altimeter
29.96 inHg
Observed at
BAZ

FAA reports on this event · 1

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