CHI01LA002

NTSB accident investigation · Moseler RAF 2000 GTX SE · Muskegon, MI · October 4, 2000

Accident · FatalLimited investigationFinal report
Date
October 4, 2000, 18:45 local (22:45 UTC)
Place
Muskegon, MI
Injuries
1 fatal
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N1187ZMoseler RAF 2000 GTX SE
Weather
Visual (VMC) · Day
Status
Completed · report December 18, 2001
Report
Approved by Office Director
FAA report
20001004015839A
Case key
51079

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 main rotor contacting with the vertical stabilizer, the loss of the vertical stabilizer, and the aircraft control not possible by the pilot.

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 flightCruise
Vertical stabilizer - loss,totalCause
Misc rotorcraft,main rotor/tail boom contactCause
In flight collision with terrain/waterDescent - uncontrolled
Aircraft control - not possiblePilot in commandCause

Analysis

The amateur-built gyroplane was destroyed on impact with terrain and a post crash fire while en route to land on the pilot/builder's private airstrip. An on-scene examination of the wreckage was performed. The vertical stabilizer of the aircraft was found about 1 mile from the main wreckage site. There was evidence of a main rotor strike to the vertical stabilizer. The pre-rotator drive belts for the rotor system were found about 300 feet from the main wreckage. A post-impact fire extensively damaged the main wreckage. No anomalies could be found that could be associated with a preexisting condition.

Factual narrative

History of flight

On October 4, 2000, at 1845 eastern daylight time, a Moseler RAF 2000 GTX SE Gyroplane, N1187Z, owned and operated by a private pilot was destroyed on impact with terrain and a post crash fire near Muskegon, Michigan. The 14 CFR Part 91 personal flight was not on a flight plan. Visual meteorological conditions prevailed at the time of the accident. The pilot, who was the sole occupant, was fatally injured. The flight originated from the Muskegon County Airport, Muskegon, Michigan at 1828 and was en route to the pilot's private airstrip in Muskegon Michigan.

Personnel information

The aircraft builder/pilot held a private pilot certificate with a rotorcraft-gyroplane rating. He held a repairman certificate issued by the Federal Aviation Administration (FAA) for the accident aircraft. The pilot also held a third class aviation medical certificate issued on June 20, 2000.

No pilot logbooks were recovered.

Meteorological information

The weather reporting station located at the Muskegon County Airport, Muskegon, Michigan reported the weather at 1845 as:

Wind direction 340 degrees Wind Speed 8 knots Visibility 10 statute miles Sky Condition clear Temperature 12 degrees Celsius Dewpoint 5 degrees Celsius Altimeter Setting 30.08 inches of mercury

Wreckage and impact information

The aircraft was an amateur-built enclosed-cabin gyroplane. A converted Subaru automobile engine of undetermined horsepower powered it. No aircraft logbooks were recovered.

FAA inspectors conducted an on-scene examination of the wreckage. The vertical stabilizer of the aircraft was found about 1 mile from the main wreckage site. There was evidence of a main rotor strike to the vertical stabilizer. The pre-rotator drive belts for the rotor system were found about 300 feet from the main wreckage. The tail boom was located about 75 feet from the main wreckage. A post-impact fire extensively damaged the main wreckage. No anomalies could be found that could be associated with a preexisting condition.

Medical and pathological information

Sparrow Regional Laboratories, Lansing, Michigan, performed an autopsy of the pilot on October 05, 2000.

A Final Forensic Toxicology Fatal Accident Report prepared by the FAA listed the following findings:

19(mg/dL, mg/hg) ETHANOL detected in muscle

The report states, "The ethanol found in this case is from postmortem ethanol formation and not from the ingestion of ethanol."

Aircraft

Registration
N1187Z
Reported as
Moseler RAF 2000 GTX SE (RAF 2000 G)
Category
Gyroplane, amateur-built
Serial number
2
Engine
Subaru UNKNOWN, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Personal · Part 91
Registered owner
Sidney L. Moseler
Airworthiness certificate
Special, Experimental (Special)
Departed
MKG
Destination
PVT · MI

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
58
Certificate
Private
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Toxicology
Performed
Flight hours
25 total

Weather

Conditions
Visual (VMC) · Day
Wind
340° at 8 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
129 °F, dew point 106 °F
Altimeter
30.00 inHg
Observed at
MKG, 9 nm away

FAA reports on this event · 1

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