- Date
- June 14, 1984, 13:45 local (20:45 UTC)
- Place
- Buena, WA
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- N11VHBell 47G2A
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- FAA report
- 19840614026489A
- Case key
- 39935
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Sequence of events
NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.
In flight collision with object
Visual lookout - inadequateCause
Clearance - not maintainedCause
InattentiveFactor
Object - tree(s)
Loss of control - in flight
Roll over
Analysis
Main rotor blades contacted a wind machine during an aerial application flt. Helicopter settled into trees and rolled over. Plt said he knew the machine was there but had forgotten.
Aircraft
- Registration
- N11VH
- Reported as
- Bell 47G2A
- Category
- Helicopter
- Serial number
- 2127
- Airframe hours
- 8,780
- Engine
- Lycoming VO-435-A1E, 240 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Aerial application · Part 137
- Operator
- Valicoptors Inc
- Registered owner
- Valicopters, Inc.
- Airworthiness certificate
- Special, Restricted (Special)
- Last inspection
- 100 hour · December 15, 1983 · 71 hours before
- Departed
- Buena, WA
- Destination
- Buena, WA
N11VHRegistration cancelled Jul 19, 2011 · Bell 47G-2Airframe modelBell 47G-2Engine modelLycoming VO-435 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.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 39
- Certificates
- Flight instructor, Commercial
- Airplane ratings
- Multi-engine land, Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 1, Valid Medical--no waivers/lim.
- Flight hours
- 4,672 total · 1,620 in this make and model · 4,443 as pilot in command · 75 in the last 90 days · 3 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 250° at 7 knots
- Visibility
- 60 statute miles
- Lowest ceiling
- None
- Temperature
- 57 °F, dew point 48 °F
- Altimeter
- 30.00 inHg
- Observed at
- YKM, 12 nm away
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 N11VH · 6
Matched to the same aircraft by N-number and date.
NTSB SEA99LA149Accident · 1 fatalLimited investigationFinal reportBenton City, WAA loss of power for undetermined reasons and the failure of the pilot to maintain adequate rotor RPM following the power loss. Contributing factors were the pilot's lack of certification and total experience.NTSB SEA86LA143Accident · No injuriesLimited investigationFinal reportZillah, WAEn route to the local spray area a total loss of power occurred along with a loss of oil pressure. The acft was aprx 200 ft AGL over a pear orchard. The plt was attempting to autorotate onto a nearby road but the left skid caught the roof top of a metal shed.…NTSB SEA85LA155Accident · No injuriesLimited investigationFinal reportRoosevelt, WAA total loss of power occurred while on a CFR 137 flight, due to fuel exhaustion. Although the fuel gauge showed 1/2 tank of fuel, the pilot failed to visually check the fuel prior to this flight. During autorotation onto a wheat field a hard landing occurred…NTSB SEA82DA072Accident · No injuriesFinal reportGrandview, WAWhile dispensing herbicide (systox) over an apple orchard the pilot sensed that the engine was binding followed by a power loss. The pilot elected to dump the herbicide and performed a power-off autorotation landing in a grape vineyard. Investigation revealed…NTSB SEA82DA050Accident · No injuriesFinal reportLyle, WADuring takeoff with a load of fertilizer, insufficient power was available to maintain engine and rotor RPM and sustain flight. The pilot dumped the load, but was unable to avoid ground contact. The tail rotor struck first and separated from the aircraft. The…NTSB FTW74FPJ06Accident · 1 fatalClosedSpringer, OK