- Date
- February 18, 1978
- Place
- Buttonwillow, CA · BUTTONWILLOW, CA
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- N9421HBell 47G1
- Status
- Completed · report March 27, 1978
- Report
- Brief approved by the director
- FAA report
- 19780218002349A
- Case key
- 143705
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 ---------------------------------------------------------------------------------------------------------------------------- 3-0214 78/2/18 BUTTONWILLOW,CA BELL 47G1 CR- 0 0 1 COMMERCIAL COMMERCIAL, FL.INSTR., TIME - 1400 N9421H PX- 0 0 0 ASSOC CROP CTL ACTIVITY AGE 33, 5500 TOTAL HOURS, DAMAGE-SUBSTANTIAL OT- 0 0 0 60 IN TYPE, NOT INSTRUMENT RATED. DEPARTURE POINT INTENDED DESTINATION BUTTONWILLOW,CA LOCAL TYPE OF ACCIDENT PHASE OF OPERATION PROPELLER/ROTOR FAILURE: TAIL ROTOR IN FLIGHT: HOVERING HARD LANDING LANDING: POWER-OFF AUTOROTATIVE LANDING PROBABLE CAUSE(S) ROTORCRAFT - ROTOR ASSEMBLIES: OTHER MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE FACTOR(S) MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND SPECIAL DATA TOTAL HOURS IN CROP CONTROL - 2500 KIND OF OPERATION - DEFOLIATION (LIQUID) KIND OF CROP - COTTON TYPE OF CHEMICAL USED - LIQUID CHEMICAL-TOXIC PILOT' S SEAT BELT -FASTENED-PROPERLY GLOVES - USED GOGGLES - NOT USED CRASH HELMET - AVAILABLE USED COCKPIT CRASHPAD - NOT INSTALLED CRASH BAR - NOT INSTALLED TANK/HOPPER-LOCATION - SIDES TERRAIN-TYPE -LEVEL,FLAT ELEVATION-AREA BEING TREATED-FEET - 200 REMARKS- YOKE TAIL ROTOR HUB PN 47-641-057-9
Aircraft
- Registration
- N9421H
- Reported as
- Bell 47G1
- 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 N9421H · 1
Matched to the same aircraft by N-number and date.