Aircraft Accident/Incident Report

Juntura, Oregon 97911
Saturday, August 8, 1998 15:05 MDT

NTSB Narrative Summary Released at Completion of Accident

The pilot-in-command (PIC) had just maneuvered the Bell 212 helicopter into a 100 foot hover above a small reservoir to fill a 'Bambi' bucket for fire-fighting operations. The rotorcraft began to settle. The PIC, perceiving that he had encountered rotor vortex conditions, slipped the helicopter to the right with the bucket still in the reservoir. This, in turn, increased the angle of the long line from the vertical or zero degree reference. Immediately thereafter, the PIC noted a loss of power in the #1 engine. He then executed a single-engine autorotation, during which a rotor blade impacted a dead tree. Post-crash examination revealed that the long line had pulled aft and left from its vertical reference into the airframe structure (the 7:30 position of the hell hole in the belly of the helicopter) resulting in 1) the separation of one of the #1 engine push/pull rods, and 2) the deformation of engine control rods associated with the #1 engine flight idle stop (solenoid) which then sheared. The shearing of the flight idle stop resulted in a restriction/cessation of fuel flow to the #1 engine fuel control unit, and subsequent engine shutdown.

NTSB Probable Cause Narrative

The pilot-in-command's failure to maintain proper clearance between the long line cable and hell hole structure resulting in airframe contact and binding of the cable. This resulted in separation/disabling of the fuel control solenoid and a subsequent restriction/cessation of fuel flow to the #1 engine. Contributing factors were separation of the #1 engine push/pull rod and a tree.

Event Information

Type of Event Accident
Event Date 8/8/1998
Event Day of the Week Saturday
Time of Event 1505
Event Time Zone Mountain Daylight Time
Event City JUNTURA
Event State OREGON
Event Country --
Zipcode of the event site 97911
Event Date Year 1998
Event Date Month 8
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 --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1453 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 230
Weather Observation Facility ID BNO
Elevation of weather observation facility 4144
Distance of event from weather observation facility (units?) 40
Time Zone of the weather observation MDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling Unknown
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 30
Dew Point at event time (in degress fahrenheit) 16
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Variable
Wind Speed (knots) 6
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 7000
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1487
NTSB Notification Source --
NTSB Notification Date Aug 8 1998 12:00AM
NTSB Notification Time 1705
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 11 2000 11:43AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N291B
NTSB Number SEA98GA159
Missing Aircraft Indicator N
Federal Aviation Reg. Part Public Use
Type of Flight Plan filed Company VFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Bell
Aircraft Model 212
Aircraft Series Identifier 212
Aircraft Serial Number 30842
Certified Max Gross Weight 11200
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 10
Number of Engines 2
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Continuous Airworthiness
Date of Last Inspection Aug 8 1998 12:00AM
Airframe hours since last inspection 4
Airframe Hours 11806
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name AIR ONE HELICOPTERS, INC.
Aircraft Owner Street Address 1144 COLEMAN AVENUE
Aircraft Owner City SAN JOSE
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 95110
Operator is an individual? --
Operator Name BLM (VALE DISTRICT)
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 100 OREGON STREET
Operator City VALE
Operator State OR
Operator Country
Operator Zip code 97918
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 Unknown
Indicates Domestic or International Flight Unknown
Operator carrying Pax/Cargo/Mail Unknown
Type of Flying (Per_Bus / Primary) Public Use
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code BNO
Departure City BURNS
Departure State OR
Departure Country
Departure Time 0
Departure Time Zone
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Oct 22 2001 3:26PM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --