- Date
- September 15, 1966
- Place
- Old Faithful, WY · OLD FAITHFUL, WY
- Injuries
- 1 serious, 1 minor
- Damage
- Substantial damage
- Phase of flight
- Emergency descent
- Aircraft
- N73982Bell 47G3B1
- Status
- Completed · report May 5, 1967
- Report
- Brief approved by the director
- Case key
- 121546
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 ---------------------------------------------------------------------------------------------------------------------------- 2-0905 66/9/15 OLD FAITHFUL WYO BELL 47G3B1 CR- 0 0 1 MISCELLANEOUS COMMERCIAL, AGE 34, 7500 TIME - 1130 N73982 PX- 0 1 0 SEARCH AND RESCUE TOTAL HOURS, 2000 IN DAMAGE-SUBSTANTIAL OT- 0 0 0 TYPE, NOT INSTRUMENT RATED. TYPE OF ACCIDENT PHASE OF OPERATION COLLIDED WITH: TREES IN FLIGHT: EMERGENCY DESCENT PROBABLE CAUSE(S) WEATHER - ICING CONDITIONS-INCLUDES SLEET,FREEZING RAIN,ETC. ROTORCRAFT - ROTOR ASSEMBLIES: MAIN ROTOR BLADES MISCELLANEOUS ACTS,CONDITIONS - OUT OF BALANCE MISCELLANEOUS ACTS,CONDITIONS - VIBRATION,EXCESSIVE ROTORCFT-LOSS OF LIFT DUE TO ICE ACCRETION. EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND PROP/ENGINE VIBRATION SKY CONDITION CEILING AT ACCIDENT SITE OVERCAST 400 VISIBILITY AT ACCIDENT SITE PRECIPITATION AT ACCIDENT SITE 1 MILE OR LESS SNOW OBSTRUCTIONS TO VISION AT ACCIDENT SITE TEMPERATURE-F BLOWING SNOW 40 WIND VELOCITY-KNOTS TYPE OF WEATHER CONDITIONS CALM VFR TYPE OF FLIGHT PLAN NONE REMARKS- US PARK SERV CONTRACT.SEARCH FOR SMOKE JUMPERS.
Aircraft
- Registration
- N73982
- Reported as
- Bell 47G3B1
- Category
- Helicopter
- Engine
- reciprocating
- Damage
- Substantial damage
N73982Registration cancelled May 7, 2013 · Bell 47G-3B-1Airframe modelBell 47G-3B-1Engine modelLycoming TVO-435-GIA
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 N73982 · 1
Matched to the same aircraft by N-number and date.