- Date
- June 9, 1964
- Place
- Yack Flats, MT · YACK FLATS, MT
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Initial climb
- Aircraft
- N8400EBell 47G3
- Status
- Completed · report August 26, 1964
- Report
- Brief approved by the director
- Case key
- 183606
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 ---------------------------------------------------------------------------------------------------------------------------- 2-0406 64/6/9 NR.YACK FLATS MONT BELL 47G3 CR- 0 0 1 COMMERCIAL COMMERCIAL, AGE 31, 1600 TIME - 2015 N8400E PX- 0 0 1 POWER/PIPELINE TOTAL HOURS, UNK/NR IN DAMAGE-SUBSTANTIAL OT- 0 0 0 TYPE, 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) PILOT IN COMMAND - IMPROPER OPERATION OF POWERPLANT & POWERPLANT CONTROLS PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS PILOT IN COMMAND - LACK OF FAMILIARITY WITH AIRCRAFT FACTOR(S) MISCELLANEOUS ACTS,CONDITIONS - ENGINE LOADED UP MISCELLANEOUS ACTS,CONDITIONS - AIRCRAFT CAME TO REST IN WATER COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND REMARKS- ENGINE POWER LAG.
Aircraft
- Registration
- N8400E
- Reported as
- Bell 47G3
- Category
- Helicopter
- Engine
- reciprocating
- Damage
- Substantial damage