Aircraft Accident/Incident Report

Dyer, Nevada 89010
Thursday, June 22, 1989 9:30 PDT

NTSB Narrative Summary Released at Completion of Accident

WHILE THE PILOT WAS ATTEMPTING TO HOVER OUT OF GROUND EFFECT OVER STEEP SLOPING MOUNTAINOUS TERRAIN IN HIGH DENSITY ALT WEATHER CONDITIONS, THE ROTOR RPM BEGAN TO DECREASE. HE ATTEMPTED TO MAKE A TAKEOFF, RESULTING IN FURTHER DECAY OF ROTOR RPM, AND IMPACT WITH TERRAIN. THE HELICOPTER ROLLED OVER AND WAS DESTROYED BY POST IMPACT FIRE. THE PILOTS RECOMMENDATION FOR PREVENTION OF THE ACCIDENT: 'AVOID OPERATIONS AT HOVER WHERE LANDING IS NOT POSSIBLE.'

NTSB Probable Cause Narrative

THE PILOTS POOR PLANNING IN ATTEMPTING A HOVER IN UNDESIRABLE CONDITIONS WHICH RESULTING IN THE INABILITY TO MAINTAIN ROTOR ROM. CONTRIBUTING TO THE ACCIDENT WAS THE MOUNTAINOUS TERRAIN AND HIGH DENSITY ALT.

Event Information

Type of Event Accident
Event Date 6/22/1989
Event Day of the Week Thursday
Time of Event 930
Event Time Zone Pacific Daylight Time
Event City DYER
Event State NEVADA
Event Country --
Zipcode of the event site 89010
Event Date Year 1989
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport
Event Location Nearest Airport ID
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 0
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 948 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 168
Weather Observation Facility ID BIH
Elevation of weather observation facility 4120
Distance of event from weather observation facility (units?) 38
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 40
Air Temperature at event time (in degrees celsius) 25
Dew Point at event time (in degress fahrenheit) -9
Wind Direction (degrees magnetic) 45
Variable Wind Indicator Unknown
Wind Speed (knots) 5
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 9800
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor 2
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 1217
NTSB Notification Source --
NTSB Notification Date Jun 22 1989 12:00AM
NTSB Notification Time 1715
Fiche Number and/or location -used to find docket information 39425
Date of most recent change to record Dec 13 2000 12:47PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N59414
NTSB Number SEA89LA116
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name BELL
Aircraft Model 47G3B2A
Aircraft Series Identifier 47G3B2A
Aircraft Serial Number 6870
Certified Max Gross Weight 2950
Aircraft Category Helicopter
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 3
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Sep 10 1988 12:00AM
Airframe hours since last inspection 120
Airframe Hours 4445
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name MC NEILL, HECTOR G.
Aircraft Owner Street Address BOX 1798
Aircraft Owner City BISHOP
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 93514
Operator is an individual? --
Operator Name HECTOR G. MCNEILL
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address P.O. BOX 1798
Operator City BISHOP
Operator State CA
Operator Country
Operator Zip code 93515
Operator Code
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Business
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code BIH
Departure City BISHOP
Departure State CA
Departure Country
Departure Time 840
Departure Time Zone PDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code BIH
Destination City
Destination State
Destination Country
Specific Phase of Flight Hover
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:35AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length 0
Runway Width 0
Sight Seeing flight No
Air Medical Flight No
Medical Flight --