CHI84FA348

NTSB accident investigation · Bell 206L-1 · Medford, MN · August 17, 1984

Accident · FatalField investigationFinal report
Date
August 16, 1984, 19:37 local (Aug 17, 1984, 00:37 UTC)
Place
Medford, MN
Injuries
1 fatal, 1 serious
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N2109CBell 206L-1
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19840816043859A
Case key
12421

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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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 powerManeuvering
Engine assembly - undetermined
Procedures/directives - not followedPilot in commandCause
Forced landingDescent - emergency
Autorotation - attemptedPilot in commandCause
Emergency procedure - poorPilot in commandCause
Inadequate training(emergency procedure(s))Pilot in commandCause
Collective - improper use ofPilot in commandCause
Adequate rotor rpm - not maintainedPilot in commandCause
Hard landingLanding - flare/touchdown
Flare - inadequatePilot in commandCause
Autorotation - misjudgedPilot in commandCause
Roll overLanding - roll

Analysis

Plt stated engine failed during cruise at an alt of 500 to 700 ft AGL. Autorotation was attempted. With collective full down rotor RPM continued to decrease while the plt maintained 60 to 70 KTS in a descent. Acft touched down with 40 to 50 KTS forward speed. Acft slid aprx 100 ft and rolled over to the left. The engine was inspected and no evidence of a preimpact failure or malfunction was found. Plt received transition training for this acft in October 1982. At that time it was recommended the plt return for proficiency training in 6 months. No record of having obtained this training was found.

Aircraft

Registration
N2109C
Reported as
Bell 206L-1
Category
Helicopter
Engine
Allison 250-C28B, 435 horsepower, turbo shaft
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Laughlin Recreational Enterpr.
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · June 29, 1984 · 22 hours before
Departed
Medford, MN
Destination
OWA · Owantonna, MN

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
53
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane, Helicopter
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Right
Flight hours
4,012 total · 205 in this make and model · 3,704 as pilot in command · 60 in the last 90 days · 18 in the last 30 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
0° at 4 knots
Visibility
6 statute miles
Temperature
81 °F, dew point 72 °F
Altimeter
30.00 inHg
Observed at
RST, 30 nm away

FAA reports on this event · 1

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