FTW85FA100

NTSB accident investigation · Bell 206L-1 · Lafayette, LA · January 22, 1985

Accident · No injuriesField investigationFinal report
Date
January 22, 1985, 14:45 local (20:45 UTC)
Place
Lafayette, LA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N2762XBell 206L-1
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19850122001309A
Case key
21524

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 power(total) - mech failure/malfCruise - normal
Engine assembly,bearing - failure,totalCause
Reason for occurrence undetermined
Forced landingLanding - flare/touchdown
Terrain condition - downhillFactor
Autorotation - performedPilot in command
Misc rotorcraft,tail boom - penetrated
Misc rotorcraft,tail boom - separation
Misc rotorcraft,tail boom - overload

Analysis

The acft departed at 2040 CST as a flt of 2 on a ferry flt. Shortly after level-off at 700 ft and power stabilized at 72% torque the engine failed and the acft yawed left and right. An autoration was initiated into a soft plowed field with a slight down-slope. Upon touchdown, according to the plt, the nose rocked forward and the main rotor blade struck and severed the tailboom at the horizontal stabilizer. Engine disassembly revealed failure of the number 2 bearing for unknown specific cause. Bearing failure allowed the compressor impeller to move forward and make contact with the compressor shroud housing inner diameter.

Aircraft

Registration
N2762X
Reported as
Bell 206L-1
Category
Helicopter
Serial number
45345
Airframe hours
2,241
Engine
Allison 250-C288, 435 horsepower, turbo shaft
Damage
Substantial damage
Flight
Ferry · Part 91
Registered owner
H. C. I. Helicopters
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · June 1, 1984 · 77 hours before
Departed
LFT · Lafayette, LA
Destination
BTR · Baton Rouge, LA
Airport
LFT · Lafayette Regional

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
37
Certificate
Commercial
Instrument ratings
Helicopter
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Right
Flight hours
2,478 total · 75 in this make and model · 2,448 as pilot in command · 8 in the last 90 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
340° at 4 knots
Visibility
7 statute miles
Lowest ceiling
20,000 ft broken
Temperature
46 °F, dew point 18 °F
Altimeter
30.00 inHg
Observed at
LFT, 3 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.