CHI08CA019

NTSB accident investigation · Bell 47G-2A · Wautoma, WI · October 17, 2007

Accident · No injuriesData collectionFinal report
Date
October 17, 2007, 10:15 local (15:15 UTC)
Place
Wautoma, WI
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N73223Bell 47G-2A
Weather
Visual (VMC) · Day
Status
Completed · report November 29, 2007
Report
Approved by Office Director
Parties
FAA-Milwaukee FSDO
FAA report
20071017832189A
Case key
66952

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 control of the helicopter resulting from a distraction in the cockpit. A contributing factor was the distraction due to the dog in the cockpit.

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 flightCruise
Diverted attentionPilot in commandFactor
Aircraft control - not maintainedPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - ground

Analysis

The helicopter impacted terrain during cruise flight. The pilot reported that the helicopter was established in cruise flight about 500 feet above ground level (agl). He was accompanied by a dog, which was restrained by a harness in the right seat. The pilot stated that a farmer waved as he flew by, and he banked the helicopter 30-degrees to the left and the right in response. He noted that this maneuver upset the dog. He subsequently transferred the cyclic from his right hand to his left hand, and restrained the collective by using the side of this leg, in order to free his right hand to reassure the dog. The pilot reported that during this time the helicopter entered a 135-degree right bank, and he seemed to become "weightless." He increased collective to load the main rotor and rolled left, recovering about 250 feet agl. He noted that the main rotor speed was "very low" and the helicopter was descending rapidly. About 50 feet agl he attempted to pitch up, but the aircraft did not respond. He "pulled all energy out of the rotor" and the helicopter impacted in a slight nose down attitude. The skids collapsed, the lower portion of the fuselage was damaged, and the main rotor blades struck the tail boom during the accident. The pilot stated that there were no failures or malfunctions associated with the aircraft prior to the accident. He noted that the distraction of having a dog in the helicopter and his transferring cyclic control to his left hand were contributing factors to the accident.

Factual narrative

The helicopter impacted terrain during cruise flight. The pilot reported that the helicopter was established in cruise flight about 500 feet above ground level (agl). He was accompanied by a dog, which was restrained by a harness in the right seat. The pilot stated that a farmer waved as he flew by, and he banked the helicopter 30-degrees to the left and the right in response. He noted that this maneuver upset the dog. He subsequently transferred the cyclic from his right hand to his left hand, and restrained the collective by using the side of this leg, in order to free his right hand to reassure the dog. The pilot reported that during this time the helicopter entered a 135-degree right bank, and he seemed to become "weightless." He increased collective to load the main rotor and rolled left, recovering about 250 feet agl. He noted that the main rotor speed was "very low" and the helicopter was descending rapidly. About 50 feet agl he attempted to pitch up, but the aircraft did not respond. He "pulled all energy out of the rotor" and the helicopter impacted in a slight nose down attitude. The skids collapsed, the lower portion of the fuselage was damaged, and the main rotor blades struck the tail boom during the accident. The pilot stated that there were no failures or malfunctions associated with the aircraft prior to the accident. He noted that the distraction of having a dog in the helicopter and his transferring cyclic control to his left hand were contributing factors to the accident.

Aircraft

Registration
N73223
Reported as
Bell 47G-2A
Category
Helicopter
Serial number
2722
Airframe hours
13,425
Engine
Lycoming VO-435-AF, 260 horsepower, reciprocating
Damage
Substantial damage
Flight
Positioning · Part 91
Operator
Reabe Spraying Service
Registered owner
223 Leasing LLC
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · December 1, 2006 · 330 hours before
Departed
8WI2 · Plainfield, WI
Destination
PCZ · Waupaca, WI
Airport
PCZ · Waupaca Muni

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
48
Injuries
None
Certificates
Flight instructor, Commercial
Airplane ratings
Single-engine land, Multi-engine land, Single-engine sea, Multi-engine sea
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Last flight review
October 1, 2005
Seat
Left
Flight hours
5,934 total · 391 in this make and model · 5,637 as pilot in command · 100 in the last 90 days · 34 in the last 30 days · 0 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 6 knots
Visibility
10 statute miles
Lowest ceiling
6,000 ft broken
Temperature
54 °F, dew point 48 °F
Altimeter
29.90 inHg
Observed at
PCZ, 10 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.