DEN85LA033

NTSB accident investigation · Bell 206B-III · Mancos, CO · November 26, 1984

Accident · No injuriesLimited investigationFinal report
Date
November 26, 1984, 08:00 local (15:00 UTC)
Place
Mancos, CO
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N5018LBell 206B-III
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19841126063419A
Case key
16604

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Analysis

The acft settled during an emer lndg after the plt said the engine failed. Investigation revealed the acft received minor maintenance on the day of the accident, consisting of changing the pitch chain links on the main rotor blades. Theplt made a written statement after the accident in which was stated, 'the acft was running aprx 15 min before takeoff with the anti-ice operating. I pulled into a hover aprx 6-7 ft AGL, slowly, to insure that there was nothing attached tothe skids. I then moved sideways from the landing zone to clear the area of blowing snow from the acft. I turned into the wind & started to apply power to climb out over another fence at about 10-15 AGL. At aprx 10-15 mph the eng out light & horn sounded & I applied rt torque pedal to correct for yaw. We started to settle to the ground & I applied collective to stop the descent & landed on the opposite side of a ditching.' The rotor or RPM decayed & the acft rocked nose to tail & the main blades hit the tail boom. After the accident the eng ran normally at all power settings.

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 powerTakeoff - initial climb
Reason for occurrence undeterminedCause
Forced landingDescent - emergency
Loss of control - in flightLanding - flare/touchdown

Aircraft

Registration
N5018L
Reported as
Bell 206B-III
Category
Helicopter
Serial number
2648
Airframe hours
3,782
Engine
Detr. Diesel 250-C20B, 420 horsepower, turbo shaft
Damage
Substantial damage
Flight
Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · July 1, 1984 · 92 hours before

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
31
Certificate
Commercial
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Right
Flight hours
2,100 total · 375 in this make and model · 150 in the last 90 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
6 statute miles
Lowest ceiling
None
Temperature
14 °F

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 N5018L · 1

Matched to the same aircraft by N-number and date.