FTW00LA181

NTSB accident investigation · Bell 206B · Deville, LA · June 19, 2000

Accident · Minor injuriesLimited investigationFinal report
Date
June 19, 2000, 09:45 local (14:45 UTC)
Place
Deville, LA
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N2277TBell 206B
Weather
Visual (VMC) · Day
Status
Completed · report July 10, 2001
Report
Approved by Office Director
FAA report
20000619006199A
Case key
49474

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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Probable cause

the pilot's failure to maintain clearance with the external load that was setting on the ground while hovering. A contributing factor was the pilot's diverted attention.

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.

Roll overHover
Clearance - not maintainedPilot in commandCause
Diverted attentionPilot in commandFactor
Dynamic rollover - encounteredPilot in command

Analysis

The helicopter was equipped with a carousel that had 4 electric release hooks under a 100-foot long line. Four cache bags of equipment were hooked to the carousel. The pilot proceeded to the first location, released one bag and moved to another location for the next drop. He released the next hook but noticed that as he lifted the remaining load, the bag had not released. He reset the hook sequencer and attempted a release with more weight on the hook(s); however, no bag released. He lowered the 100-foot long line onto the ground so he could 'examine the carousel for an electrical disconnection or perhaps [a] bag strap hang up.' While at a low hover, with the helicopter facing into the wind, the pilot moved the helicopter laterally from left to right toward the carousel. The pilot was concerned with maintaining tail rotor clearance with the rotor wash blown cotton crop. Therefore, he was looking back out the open door when the helicopter's right skid contacted one or more of the cache bags, which were extending above the cotton plants. Subsequently, the helicopter rolled over onto its right side.

Factual narrative

On June 19, 2000, at 0945 central daylight time, a Bell 206B helicopter, N2277T, was substantially damaged when it rolled over while hovering near Deville, Louisiana. The helicopter was registered to and operated by Carisch Helicopters, Inc., of Bozeman, Montana. The commercial pilot, sole occupant, sustained minor injuries. Visual meteorological conditions prevailed, and a company flight plan was filed for the 14 Code of Federal Regulations Part 133 external load flight. The local flight originated from a staging area approximately five minutes prior to the accident.

The helicopter was equipped with a carousel that had 4 electric release hooks under a 100-foot long line. Four cache bags of equipment were hooked to the carousel. The pilot proceeded to the first drop location, released one bag and moved to another location for the next drop. He released the next hook but noticed that as he lifted the remaining load, the bag had not released. He reset the hook sequencer and attempted a release with more weight on the hook(s); however, no bag released. He lowered the 100-foot long line onto the ground so he could "examine the carousel for an electrical disconnection or perhaps [a] bag strap hang up." While at a low hover, with the helicopter facing into the wind, the pilot moved the helicopter laterally from left to right toward the carousel. The pilot was concerned with maintaining tail rotor clearance with the rotor wash blown cotton crop. Therefore, he was looking back out the open door when the helicopter's right skid contacted one or more of the cache bags, which were extending above the cotton plants. Subsequently, the helicopter rolled over onto its right side.

An examination of the helicopter by the FAA inspector, who responded to the accident site, revealed that the main rotor had separated from its mast, and the tailboom and both skids were damaged.

Aircraft

Registration
N2277T
Reported as
Bell 206B
Category
Helicopter
Serial number
3631
Airframe hours
10,335
Engine
Allison 250-C20B, 420 horsepower, turbo shaft
Damage
Substantial damage
Flight
Other work use · Part 133
Registered owner
Carisch Helicopters, Inc.
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · April 10, 2000 · 31 hours before
Departed
NONE
Flight plan
Company VFR

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
47
Certificate
Commercial
Instrument ratings
Helicopter
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Right
Flight hours
9,800 total · 4,300 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
225° at 5 knots
Visibility
6 statute miles
Lowest ceiling
None
Temperature
79 °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.

Other investigations on N2277T · 1

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