CEN11CA303

NTSB accident investigation · Bell 206 · Venice, LA · April 13, 2011

Accident · Minor injuriesData collectionFinal report
Date
April 13, 2011, 10:30 local (15:30 UTC)
Place
Venice, LA
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Taxi
Aircraft
N887TBell 206
Defining event
Taxi: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report August 30, 2011
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA Baton Rouge FSDO
FAA report
20110413007549A
Case key
78951

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 improper use of the collective and cyclic control during taxi operations, which induced a dynamic rollover.

Findings · 2

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Incorrect use/operationBell 206B: 8 casesAll aircraft: 3,958 casesProbable cause
Action: incorrect action performancePersonnel issues › Action/decision · PilotBell 206B: 11 casesAll aircraft: 1,386 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The pilot reported that he was water-taxiing a fixed-float equipped helicopter in a right sideways direction when the helicopter rolled to the right, impacted the water, rolled inverted, and sank. The pilot, who was the sole occupant, was able to exit the inverted cockpit, inflate his life vest and swim to shore. The helicopter sustained substantial damage to the main rotor system, tail rotor, and fuselage. The pilot reported no preimpact mechanical anomalies with the helicopter. The characteristics displayed by the helicopter were indicative of it encountering a dynamic rollover.

Factual narrative

The pilot of the fixed-float equipped helicopter reported he was water-taxiing in a right sideways direction when the helicopter rolled to the right, impacted the water, rolled inverted, and submerged. The pilot, who was the sole occupant, was able to exit the inverted cockpit, inflate his life vest and swim to shore. The impact caused substantial damage to the main rotor system, tail rotor, and fuselage. The pilot reported no preimpact mechanical anomalies with the helicopter. The helicopter's tendency to continue rolling when the critical angle is exceeded, as when one skid is caught on the surface, and the helicopter pivots around that point, is dynamic rollover.

Aircraft

Registration
N887T
Reported as
Bell 206 (B)
Category
Helicopter
Serial number
2219
Airframe hours
8,335
Engine
Allison 250, 420 horsepower, turbo shaft
Damage
Substantial damage
Flight
Aerial observation · Part 91
Operator
El Paso Cgp LLC
Registered owner
El Paso Cgp LLC
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · March 21, 2011 · 14 hours before
Departed
HUM · Houma, LA
Destination
Venice, LA
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
44
Injuries
Minor
Certificate
Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane, Helicopter
Medical
Class 1, Without waivers/limitations
Last flight review
July 26, 2010
Seat
Right
Flight hours
9,500 total · 7,000 in this make and model · 9,300 as pilot in command · 177 in the last 90 days · 47 in the last 30 days · 6 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
60° at 5 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
75 °F, dew point 59 °F
Altimeter
30.09 inHg
Observed at
KBVE, 22 nm away

Docket · 3

The files NTSB released with the investigation on June 29, 2011, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.9 MB in all.

FAA reports on this event · 1

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