DEN83LA022

NTSB accident investigation · Bell 206B · Near Kalispell, MT · November 21, 1982

Accident · No injuriesLimited investigationFinal report
Date
November 20, 1982, 22:30 local (Nov 21, 1982, 05:30 UTC)
Place
Near Kalispell, MT
Injuries
4 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N5011GBell 206B
Weather
Visual (VMC) · Night/dark
Status
Completed · report November 20, 1983
Report
Approved by Office Director
FAA report
19821120059329A
Case key
71876

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 encounter with weatherManeuvering
Weather condition - snowFactor
Weather condition - obscurationFactor
Weather condition - tailwindCause
Weather condition - unfavorable windCause
Loss of control - in flightManeuvering
Light condition - dark nightFactor
Aircraft handling - inadequatePilot in commandCause
In flight collision with terrain/waterManeuvering
Roll overManeuvering

Analysis

Acft departed hospital at missoula in good wx to assist highway accident victim 5 mi east of clinton. Victim was placed aboard helicopter on stretcher for emergency flight to hospital. About 5-6 mi east of missoula plt noticed light snow falling & observed a large storm cell between his position & missoula, & executed an immediate right turn away from the storm. During a second turn to assess the wx situation & as the acft's tail was to the cell, the acft settled with power from about 400 ft AGL.

Aircraft

Registration
N5011G
Reported as
Bell 206B
Category
Helicopter
Serial number
2579
Airframe hours
1,296
Engine
Allison 250-C20B, 317 horsepower, turbo shaft
Damage
Substantial damage
Flight
Part 135
Operator
Mountain West Helicopters
Registered owner
Mountain West Helicopters
Departed
Clinton, MT
Destination
MSO · Missoula, MT

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
Commercial, Flight instructor
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Flight hours
5,080 total · 2,580 in this make and model · 4,810 as pilot in command · 32 in the last 90 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Night/dark
Visibility
5 statute miles
Lowest ceiling
4,000 ft overcast
Temperature
82 °F
Altimeter
29.00 inHg

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.