ATL07CA037

NTSB accident investigation · Eurocopter France EC120B · Griffin, GA · February 3, 2007

Accident · No injuriesData collectionFinal report
Date
February 3, 2007, 14:00 local (19:00 UTC)
Place
Griffin, GA
Injuries
3 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N491AEEurocopter France EC120B
Weather
Visual (VMC) · Day
Status
Completed · report April 25, 2007
Report
Approved by Office Director
Parties
College Park FSDO-11
FAA report
20070203001939A
Case key
65350

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 first pilot's failure to maintain directional control of the helicopter during hover in ground effect, and the second pilot's (a certificated flight instructor), delayed remedial action, which resulted in an in-flight collision with the ground. A factor associated with the accident was the first pilot's failure to relinquish the flight controls.

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 control - in flightHover - in ground effect
Aircraft control - not maintainedPilot in commandCause
Remedial action - delayedCopilot/second pilotFactor
Relinquishing of control - not performedPilot in commandFactor
In flight collision with terrain/waterHover - in ground effect
Terrain condition - ground
Roll overHover
Dynamic rollover - inadvertent

Analysis

According to the certificated flight instructor (CFI), the helicopter-rated passengers were friends of the helicopter owner. The owner agreed to let both passengers pilot his helicopter with the CFI. After the first flight around the airport pattern, the front passenger exchanged seats with the rear passenger, who moved into the right front seat next to the CFI. The CFI then instructed the pilot to bring the helicopter to a hover. The pilot lifted the helicopter to a hover, and it began to rotate to the left. The CFI instructed the pilot to "add right pedal, add right pedal", but the helicopter continued to rotate to the left. The CFI attempted to apply pressure on the right pedal, but the pilot "panicked and froze" on the flight controls. The CFI stated that he yelled to the pilot, "I have the controls", but the pilot did not respond. The CFI stated that he was unable to overcome the pilot's strength on the flight controls. The helicopter's tail rotor struck the ground, and the helicopter rolled over on its right side. The pilot and CFI did not report any mechanical or flight control anomalies with the helicopter. Examination of the helicopter revealed the tail boom separated from the fuselage and main rotor blades were destroyed.

Factual narrative

According to the certified flight instructor (CFI), the helicopter-rated passengers were friends of the helicopter owner. The owner agreed to let both passengers pilot his helicopter with the CFI. After the first flight around the airport pattern, the front passenger exchanged seats with the rear passenger, who moved into the right front seat next to the CFI. The CFI then instructed the pilot to bring the helicopter to a hover. The pilot lifted the helicopter to a hover and it began to rotate to the left. The CFI instructed the pilot to "add right pedal, add right pedal", but the helicopter continued to rotate to the left. The CFI attempted to apply pressure on the right pedal, but the pilot "panicked and froze" on the flight controls. The CFI stated that he yelled to the pilot, "I have the controls", but the pilot did not respond. The CFI stated that he was unable to overcome the pilot's strength on the flight controls. The helicopter's tail rotor struck the ground, and the helicopter rolled over on its right side. The pilot and CFI did not report any mechanical or flight control anomalies with the helicopter. Examination of the helicopter revealed the tail boom separated from the fuselage and main rotor blades were destroyed.

Aircraft

Registration
N491AE
Reported as
Eurocopter France EC120B
Category
Helicopter
Serial number
1317
Airframe hours
312
Engine
Turbomeca Arrius 2F, 432 horsepower, turbo shaft
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Lance Toland LTD.
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · October 1, 2006 · 15 hours before
Departed
6A2 · Griffin, GA
Destination
6A2 · Griffin, GA
Airport
6A2 · Griffin-Spalding County

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
30
Injuries
None
Certificate
Private
Medical
Class 3, Without waivers/limitations
Last flight review
September 1, 2005
Seat
Right
Flight hours
385 total · 0 in this make and model · 334 as pilot in command · 30 in the last 90 days · 11 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
280° at 11 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
39 °F, dew point 48 °F
Altimeter
30.28 inHg
Observed at
KATL, 50 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.