DFW07LA111

NTSB accident investigation · Bell 206B · Horseshoe Bay, TX · May 13, 2007

Accident · Minor injuriesLimited investigationFinal report
Date
May 13, 2007, 07:45 local (12:45 UTC)
Place
Horseshoe Bay, TX
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N905WPBell 206B
Weather
Visual (VMC) · Day
Status
Completed · report August 30, 2007
Report
Approved by Office Director
Parties
FAA FSDO
FAA report
20070513009069A
Case key
65765

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 loss of control as result of dynamic rollover while attempting to takeoff. Facrots were the landing skid becoming snagged and the soft terrain.

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.

On ground/water encounter with terrain/waterTakeoff
Terrain condition - softFactor
Loss of control - on ground/waterTakeoff
Dynamic rollover - encounteredPilot in commandCause
Landing gear,skid assembly - snaggedFactor
Roll overUnknown

Analysis

The 90-hour helicopter private pilot lost control of the helicopter after encountering dynamic rollover while attempting to bring the helicopter to a hover. The pilot reported that the forward portion of the right landing gear skid of the helicopter became entangled in soft and wet ground. An FAA inspector, who responded to the accident site, confirmed that the helicopter came to rest on its right side, resulting in structural damage to the airframe and the tailboom. There was no fire and the pilot was able to egress the helicopter unassisted.

Factual narrative

On May 13, 2007, at 0745 central daylight time, a single-engine Bell 206B3 helicopter, N905WP, was substantially damaged following a loss of control while attempting to takeoff from a private subdivision near Horseshoe Bay, Texas. The private pilot, sole occupant of the helicopter, sustained minor injuries. The helicopter was registered to and operated by the pilot. Visual meteorological conditions prevailed throughout the area for the 14 Code of Federal Regulations Part 91flight. No flight plan was filed for the intended 214-nautical mile personal cross-country flight which was originating at the time of the mishap. The flight's destination was the Midland International Airport (MAF), near Midland, Texas.

The 90-hour helicopter pilot reported that the forward portion of the right landing gear skid got became hung-up with the tall grass on the soft and wet ground while the pilot attempted to bring the aircraft to a hover prior to takeoff. The helicopter encountered dynamic rollover and rolled uncontrolled, coming to rest on its right side.

The pilot stated that he was well aware of dynamic rollover; however, he never considered the possibility of a landing gear skid tube being "hung-up" on the soft ground. Dynamic rollover was well discussed during his initial helicopter training, and was normally associated with slope landings. The pilot further stated, that while planning his takeoff to a hover, he was primarily concerned with a tree located on the left side of the aircraft. He wanted to make sure the did not inadvertently allowed the helicopter to drift to the left when he brought the helicopter to a hover.

An FAA inspector, who responded to the accident site, confirmed that the helicopter came to rest on its right side, resulting in structural damage to the airframe and the tailboom. There was no fire and the pilot was able to egress the helicopter unassisted. The pilot denied having any mechanical malfunctions or failures with the airframe. The fuel system was not compromised and there were no fuel spills. The helicopter had approximately 95 gallons of fuel on board at the time of the mishap.

At 0753, the weather at the Burnett Municipal Airport (BMQ), located approximately 9-nautical miles northeast of the mishap, was reporting calm wind, clear skies, 10-miles visibility, temperature 23 degree Celsius, dew point 16 degree Celsius, with an altimeter setting of 30.16 inches.

Aircraft

Registration
N905WP
Reported as
Bell 206B
Category
Helicopter
Serial number
3224
Engine
Allison 250 SER, 250 horsepower, turbo shaft
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Clay Johnson
Airworthiness certificate
Standard, Normal
Last inspection
Annual · December 1, 2006
Departed
Horseshoe Bay, TX
Destination
MAF · Midland, TX
Flight plan
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
46
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 1, Without waivers/limitations
Last flight review
March 1, 2007
Seat
Left
Flight hours
90 total · 90 in this make and model · 50 as pilot in command · 50 in the last 90 days · 20 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
73 °F, dew point 61 °F
Altimeter
30.15 inHg
Observed at
KBMQ

FAA reports on this event · 1

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