SEA74AYE04

NTSB accident investigation · Bell 47D · Anacortes, WA · July 7, 1973

Accident · No injuriesClosed
Date
July 7, 1973
Place
Anacortes, WA · ANACORTES, WA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N964BBell 47D
Status
Completed · report November 22, 1973
Report
Brief approved by the director
FAA report
19730707021089A
Case key
188946

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
----------------------------------------------------------------------------------------------------------------------------
3-2998   73/7/7    ANACORTES,WASH      BELL 47D            CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 0700                    N964B               PX-  0  0  0  AERIAL APPLICATION        AGE 24, 1875 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            114 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - BAYVIEW
        DEPARTURE POINT             INTENDED DESTINATION
          BURLINGTON,WASH             LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: TAIL ROTOR                      IN FLIGHT: PULLUP FROM SWATH RUN
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           ROTORCRAFT - ROTOR ASSEMBLIES: TAIL ROTOR BLADES
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
           PILOT IN COMMAND - FAILED TO MAINTAIN DIRECTIONAL CONTROL
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
                                  DIRECTIONAL CONTROL PROBLEM
                                  SUSPECTED OR KNOWN AIRCRAFT DAMAGE
         SPECIAL DATA
          KIND OF OPERATION - SPRAYING CROPS
        REMARKS- FATIGUE-T/R BLADE YOKE P/N 47-641-057-9.PLT MAINTAINED CONTROL 2 MIN.

Aircraft

Registration
N964B
Reported as
Bell 47D
Category
Helicopter
Engine
reciprocating
Damage
Substantial damage
Airport
Bayview

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 N964B · 1

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