FTW86FRG26

NTSB accident investigation · Benson B-8M · New Braunfels, TX · June 10, 1986

Accident · FatalFinal report
Date
June 10, 1986, 17:30 local (22:30 UTC)
Place
New Braunfels, TX
Injuries
1 fatal
Damage
Destroyed
Phase of flight
Approach
Aircraft
N632XBenson B-8M
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19860610027169A
Case key
21972

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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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 engine power(total) - nonmechanicalApproach - vfr pattern - final approach
Rotor system,main rotor blade - foreign objectCause
Aircraft preflight - inadequatePilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The acft crashed out of control after the eng stopped during a landing approach, the acft had almost completed the 1st pattern around the field when the eng stopped. Investigation revealed a 1/4 inch nylon rope wrapped and tied around the rotor blade about 30 inches from the tip. This was a part of the rope that the plt had used to tie the rotor down while the acft was not being operated. The rope appeared to have slipped down the blade from the hub area.

Aircraft

Registration
N632X
Reported as
Benson B-8M
Category
Gyroplane, amateur-built
Serial number
JM1
Engine
Mcculloch 4318A, 90 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Personal · Part 91
Registered owner
Windrow Lee Riggins
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · October 4, 1985
Departed
3R5 · Fnew Braufels, TX
Airport
3R5 · New Braunfels

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
49
Certificate
Student
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Center

Weather

Conditions
Visual (VMC) · Day
Wind
200° at 7 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
91 °F, dew point 1 °F
Altimeter
29.00 inHg
Observed at
FSS

FAA reports on this event · 1

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