FTW84FA290

NTSB accident investigation · Griffin FG-1A · Mt Pleasant, TX · June 29, 1984

Accident · FatalField investigationFinal report
Date
June 29, 1984, 13:30 local (18:30 UTC)
Place
Mt Pleasant, TX
Injuries
1 fatal
Damage
Destroyed
Phase of flight
Approach
Aircraft
N455FGGriffin FG-1A
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19840629028049A
Case key
21130

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

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 - vfr pattern - final approach
Planning/decision - improperPilot in commandFactor
Inadequate initial trainingPilot in commandFactor
Airspeed - not maintainedPilot in commandCause
Rotor rpm - not maintainedPilot in commandCause
Lack of total experience in kind of aircraftPilot in commandFactor
In flight collision with terrain/waterDescent - uncontrolled

Analysis

According to witnesses, the gyrocopter plt took off & turned onto a left downwind to stay in the traffic pattern for rwy 17. One witness stated that the gyrocopter turned onto final apch at about 300 to 400 ft AGL. Two other witnesses, who reside aprx 1/4 mi north of the arpt, related that the gyrocopter flew low over their property at about 150 ft while turning onto final. Both reported that the eng was operating & sounded normal. One individual stated that the plt waved as he passed over his backyard. Reportedly, the gyrocopter flew low over power lines, climbed to a more normal altitude, then entered a steep descent & crashed. One witness said it stalled. Another said it fell like a rock. Impact occurred about 200 ft short of the rwy. No pre-impact failure or malfunction was found. Local gyrocopter operators stated the plt was teaching himself to fly despite recommendations to obtain instruction.

Aircraft

Registration
N455FG
Reported as
Griffin FG-1A
Category
Gyroplane, amateur-built
Serial number
1
Airframe hours
45
Engine
Volkswagen TYPE 3 1835CC, 60 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Registered owner
Earnest W. Grober
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Unknown · September 1, 1983 · 45 hours before
Airport
F03 · Mt. Pleasant Municipal, runway 17, 3,800 × 125 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
51
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Front
Toxicology
Performed
Flight hours
700 total · 45 in this make and model · 592 as pilot in command · 45 in the last 90 days · 3 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
120° at 4 knots
Visibility
20 statute miles
Lowest ceiling
10,000 ft broken
Temperature
81 °F, dew point 70 °F
Altimeter
29.00 inHg
Observed at
GGG, 43 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.