- Date
- June 19, 1966
- Place
- Hyattville, WY · HYATTVILLE, WY
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Initial climb
- Aircraft
- N74121Bell 47D1
- Status
- Completed · report March 1, 1967
- Report
- Brief approved by the director
- Case key
- 171109
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 ---------------------------------------------------------------------------------------------------------------------------- 2-0579 66/6/19 NR.HYATTVILLE WYO BELL 47D1 CR- 0 0 1 COMMERCIAL COMMERCIAL, AGE 41, 4500 TIME - 1845 N74121 PX- 0 0 0 ASSOC CROP CTL ACTIVITY TOTAL HOURS, 3400 IN DAMAGE-SUBSTANTIAL OT- 0 0 0 TYPE, NOT INSTRUMENT RATED. TYPE OF ACCIDENT PHASE OF OPERATION ENGINE FAILURE OR MALFUNCTION TAKEOFF: INITIAL CLIMB ROLL OVER LANDING: POWER-OFF AUTOROTATIVE LANDING PROBABLE CAUSE(S) POWERPLANT - ENGINE STRUCTURE: OTHER COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND SPECIAL DATA TOTAL HOURS IN CROP CONTROL - 2000 KIND OF OPERATION - DEFOLIATION (LIQUID) KIND OF CROP - OTHER TYPE OF CHEMICAL USED - LIQUID CHEMICAL-NONTOXIC PILOT' S SEAT BELT -FASTENED-PROPERLY GLOVES - NOT USED GOGGLES - NOT USED CRASH HELMET - NOT AVAILABLE COCKPIT CRASHPAD - NOT INSTALLED CRASH BAR - NOT INSTALLED TANK/HOPPER-LOCATION - SIDES TERRAIN-TYPE -MOUNTAINOUS ELEVATION-AREA BEING TREATED-FEET - 8100 REMARKS- ACCESSORY CASE CRACKED,MAGNETO DRIVE GEARS BECAME DISENGAGED. SAGEBRUSH CONTROL.
Aircraft
- Registration
- N74121
- Reported as
- Bell 47D1
- Category
- Helicopter
- Engine
- reciprocating
- Damage
- Substantial damage
N74121Registration cancelled May 8, 2013 · Bell 47D1Airframe modelBell 47D1Engine modelFranklin 6V4 series
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.
Other investigations on N74121 · 5
Matched to the same aircraft by N-number and date.