CHI05CA066

NTSB accident investigation · Robinson R44 · Minneapolis, MN · February 5, 2005

Accident · No injuriesData collectionFinal report
Date
February 5, 2005, 17:00 local (23:00 UTC)
Place
Minneapolis, MN
Injuries
3 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N7091CRobinson R44
Weather
Visual (VMC) · Day
Status
Completed · report April 28, 2005
Report
Approved by Office Director
Parties
Minneapolis, MN FSDO
FAA report
20050205001449A
Case key
60960

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 inadequate compensation for the wind conditions and his failure to maintain control of the helicopter while maneuvering to center the helicopter on a cart. A factor associated with the accident was the wind gusts.

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 flightManeuvering
Compensation for wind conditions - inadequatePilot in commandCause
Weather condition - gustsFactor
Aircraft control - not maintainedPilot in commandCause
Roll overManeuvering

Analysis

The helicopter rolled over following a loss of control while maneuvering. The pilot reported he was landing on a cart when the accident occurred. He reported the helicopter touched down, and he was attempting to raise the helicopter to center it on the cart, when a gust of wind caused the helicopter to roll to the right. The right skid contacted the ground and the helicopter came to rest on its right side. The pilot stated the cart is approximately 6 to 8 inches high. He also stated that when the helicopter is centered on the cart there is approximately 1 foot of clearance between the outside of each skid and the edge of the cart. The local winds reported at ANE at the time of the accident were from 160 degrees at 16 knots gusting to 23 knots. The airport manager reported that helicopters are prohibited from hover taxiing between the hangars on the airport. The pilot reported they land the helicopter on a cart which they then tow into the hangar using an all terrain type vehicle.

Factual narrative

On February 5, 2005, at 1700 central standard time, a Robinson R44 helicopter, N7091C, collided with the terrain following a loss of control while maneuvering at the Anoka County-Blaine Airport (ANE), Minneapolis, Minnesota. The commercial rated pilot and two passengers were not injured. The helicopter was substantially damaged. The 14 CFR Part 91 business flight was operating in visual meteorological conditions on a visual meteorological rules flight plan. The flight originated from Menomonie, Wisconsin, at 1600.

The pilot reported he was landing on a cart when the accident occurred. He reported the helicopter touched down, and he was attempting to raise the helicopter to center it on the cart, when a gust of wind caused the helicopter to roll to the right. The right skid contacted the ground and the helicopter came to rest on its right side.

The airport manager at ANE reported that the helicopters are prohibited from hover taxiing between the hangars on the airport. The pilot reported they land the helicopter on a cart which they then tow into the hangar using an all terrain type vehicle.

The pilot stated the cart is approximately 6 to 8 inches high. He also stated that when the helicopter is centered on the cart there is approximately 1 foot of clearance between the outside of each skid and the edge of the cart.

The local winds reported at ANE at the time of the accident were from 160 degrees at 16 knots gusting to 23 knots.

Aircraft

Registration
N7091C
Reported as
Robinson R44
Category
Helicopter
Serial number
0617
Engine
Lycoming O-540, reciprocating
Damage
Substantial damage
Flight
Business · Part 91
Operator
H & K Builders, Inc.
Registered owner
H & K Builders, Inc.
Airworthiness certificate
Standard, Normal
Departed
W11 · Menomonie, WI
Destination
ANE · Anoka, MN
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
39
Injuries
None
Certificates
Flight instructor, Commercial
Airplane ratings
Single-engine land, Multi-engine land, Single-engine sea
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Flight hours
1,827 total · 912 in this make and model · 45 in the last 90 days

Weather

Conditions
Visual (VMC) · Day
Wind
160° at 16 knots, gusting 23
Visibility
10 statute miles

FAA reports on this event · 1

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