FTW80DPJ01

NTSB accident investigation · Brantly B-2B · Guymon, OK · October 1, 1979

Accident · No injuriesClosed
Date
October 1, 1979
Place
Guymon, OK · GUYMON, OK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N2191UBrantly B-2B
Status
Completed · report November 7, 1979
Report
Brief approved by the director
FAA report
19791001040389A
Case key
133392

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
----------------------------------------------------------------------------------------------------------------------------
3-2524   79/10/1   GUYMON,OK           BRANTLY B-2B        CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 23, 527
        TIME - 1700                    N2191U              PX-  0  0  1  CORP/EXEC                 TOTAL HOURS, 65 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          GUYMON,OK                   LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: TAIL ROTOR                      TAKEOFF: INITIAL CLIMB
           ROLL OVER                                                LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           ROTORCRAFT - TRANSMISSION ROTOR DRIVE SYSTEM: TAIL ROTOR DRIVE SHAFT ASSEMBLY
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        REMARKS- TAIL ROTOR SHAFT COUPLING BOLT FAILED

Aircraft

Registration
N2191U
Reported as
Brantly B-2B
Category
Helicopter
Engine
reciprocating
Damage
Substantial damage

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 N2191U · 2

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