FTW80FPJ24

NTSB accident investigation · Benson B8M · Frederick, OK · June 20, 1980

Accident · FatalClosed
Date
June 20, 1980
Place
Frederick, OK · FREDERICK, OK
Injuries
1 fatal
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N4355Benson B8M
Status
Completed · report September 11, 1980
Report
Brief approved by the director
FAA report
19800620019989A
Case key
130402

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

On this page

NTSB brief

NTSB’s brief of the accident, as it was printed: the coded facts, with the probable cause and factors.

----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1718  80/6/20    FREDERICK,OK        BENSON B8M          CR-  1  0  0  NONCOMMERCIAL             NO CERTIFICATE, AGE 24,
        TIME - 1430                    N4355               PX-  0  0  0  PLEASURE/PERSONAL TRANSP  130 TOTAL HOURS, ALL IN
                                       DAMAGE-DESTROYED    OT-  0  0  0                            TYPE, UNK/NR INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - FREDERICK MUNI
        DEPARTURE POINT             INTENDED DESTINATION
          FREDERICK,OK                LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           AIRFRAME FAILURE: IN FLIGHT                              IN FLIGHT: OTHER
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - EXCEEDED DESIGNED STRESS LIMITS OF AIRCRAFT
        FACTOR(S)
           ROTORCRAFT - ROTOR ASSEMBLIES: MAIN ROTOR BLADES
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
        REMARKS- OBSD IN STEEP TURNS/DIVES.MAIN ROTOR SEPD,BLADES BENT UPWARD.

Aircraft

Registration
N4355
Reported as
Benson B8M
Category
Gyroplane, amateur-built
Engine
reciprocating
Damage
Destroyed
Airport
Frederick Muni

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.

FAA reports on this event · 1

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

Other investigations on N4355 · 2

Matched to the same aircraft by N-number and date.