DEN84LA232

NTSB accident investigation · Bell 206B · Durango, CO · July 21, 1984

Accident · No injuriesLimited investigationFinal report
Date
July 21, 1984, 15:00 local (21:00 UTC)
Place
Durango, CO
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N5754KBell 206B
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19840721059759A
Case key
16439

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.

Loss of engine power(total) - nonmechanicalManeuvering
Fluid,fuel - starvationCause
Forced landingDescent - emergency
Autorotation - performedPilot in commandFactor
In flight collision with terrain/waterLanding - flare/touchdown
Terrain condition - none suitableFactor
Terrain condition - high vegetationFactor
Terrain condition - mountainous/hillyFactor

Analysis

The acft engine quit as the plt maneuvered over a ridge line after operating over 1 hour without refueling even though fuel was available at the last stop. The plt said the fuel gages indicated 6 gallons of fuel remaining. Of this about 2 are unusable in level cruise and more unusable when maneuvering. The FAA inspector who drained the acft after the accident said about 4 gallons were on board. The plt was only 5 miles from destination when flameout occurred, which canoccur from fuel flow interruption when 'sloshing' during maneuvers. The engine will not re-ignite unless it has ignitionsuch as an auto relight which this acft did not have. The plt did not mention any attempts to restart.

Aircraft

Registration
N5754K
Reported as
Bell 206B
Category
Helicopter
Serial number
3126
Airframe hours
3,126
Engine
Allison 250-C20B, 317 horsepower, turbo shaft
Damage
Substantial damage
Flight
Positioning · Part 91
Operator
Rocky Mountain Helicopters
Registered owner
New Air Inc.
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · February 2, 1984 · 81 hours before
Departed
Tall Timbers Ld, CO
Destination
5CO · Durango, CO
Flight plan
Company VFR

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
37
Certificate
Commercial
Instrument ratings
Helicopter
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Right
Flight hours
5,380 total · 1,800 in this make and model · 5,140 as pilot in command · 180 in the last 90 days · 6 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 8 knots
Visibility
75 statute miles
Lowest ceiling
None
Temperature
88 °F, dew point 43 °F
Altimeter
30.00 inHg
Observed at
DRO

FAA reports on this event · 1

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