- Date
- February 6, 1968
- Place
- Onawa, IA · ONAWA, IA
- Injuries
- 1 uninjured
- Damage
- Destroyed
- Phase of flight
- Standing
- Aircraft
- N970BBell 47G
- Status
- Completed · report July 18, 1968
- Report
- Brief approved by the director
- Case key
- 111759
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 ---------------------------------------------------------------------------------------------------------------------------- 3-1612 68/2/6 ONAWA,IOWA BELL 47G CR- 0 0 1 COMMERCIAL COMMERCIAL, FL.INSTR., TIME - 1330 N970B PX- 0 0 0 OTHER AGE 33, 2309 TOTAL HOURS, DAMAGE-DESTROYED OT- 0 0 0 71 IN TYPE, NOT INSTRUMENT RATED. NAME OF AIRPORT - ONAWA TYPE OF ACCIDENT PHASE OF OPERATION ROLL OVER STATIC: IDLING ROTORS COLLIDED WITH: AUTOMOBILE STATIC: IDLING ROTORS PROBABLE CAUSE(S) PILOT IN COMMAND - LEFT AIRCRAFT UNATTENDED, ENGINE RUNNING PILOT IN COMMAND - ATTEMPTED OPERATION W/KNOWN DEFICIENCIES IN EQUIPMENT WEATHER - UNFAVORABLE WIND CONDITIONS FACTOR(S) ROTORCRAFT - FLIGHT CONTROL SYSTEMS: COLLECTIVE PITCH CONTROL SYSTEM WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED WEATHER FORECAST - UNKNOWN/NOT REPORTED SKY CONDITION CEILING AT ACCIDENT SITE CLEAR UNLIMITED VISIBILITY AT ACCIDENT SITE PRECIPITATION AT ACCIDENT SITE 5 OR OVER(UNLIMITED) NONE OBSTRUCTIONS TO VISION AT ACCIDENT SITE TEMPERATURE-F NONE 35 WIND DIRECTION-DEGREES WIND VELOCITY-KNOTS 320 20 TYPE OF WEATHER CONDITIONS TYPE OF FLIGHT PLAN VFR NONE REMARKS- TIMBER SPOTTING.DEPLANED TO DISCONNECT BOOSTER CABLES MOVE TRUCK.WIND 20K.FRICTION LOCK INOP.
Aircraft
- Registration
- N970B
- Reported as
- Bell 47G
- Category
- Helicopter
- Engine
- reciprocating
- Damage
- Destroyed
- Airport
- Onawa
N970BRegistration cancelled Nov 26, 2014 · Bell 47GAirframe modelBell 47GEngine modelFranklin 6V-335 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 N970B · 2
Matched to the same aircraft by N-number and date.
NTSB MIA93FA121Accident · 2 fatalField investigationFinal reportParker, FLthe misjudgement of the distance by the nonrated pilot-in-command and subsequent collision with a tree. Contributing to the accident was the lack of helicopter experience of the pilot-in-command.NTSB UNK64X4188Accident · No injuriesClosedBakersfield, CA