LAX04CA121

NTSB accident investigation · Bell 47-G3B2 · Salome, AZ · February 11, 2004

Accident · No injuriesData collectionFinal report
Date
February 11, 2004, 10:30 local (17:30 UTC)
Place
Salome, AZ
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N8AGBell 47-G3B2
Weather
Visual (VMC) · Day
Status
Completed · report April 28, 2004
Report
Approved by Office Director
Parties
Federal Aviation Administration
FAA report
20040211007429A
Case key
58735

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 an adequate clearance from trees while approaching the landing zone.

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.

In flight collision with objectApproach - vfr pattern - final approach
Weather condition - gusts
Weather condition - high wind
Object - tree(s)
Clearance - not maintainedPilot in commandCause

Analysis

The helicopter collided with a tree while attempting to land. The pilot obtained a weather briefing prior to his departure. The briefer reported turbulent winds in the area but indicated that he did not believe there would be gusty wind conditions in the intended landing area. The landing zone was a paved area about 200 feet wide and 300 feet long surrounded by trees, with a hill located to the north. The pilot said that while making the approach, about 25 feet above ground level, a "violent" gust of wind turned the helicopter 90 degrees to the left, and flipped it on its side. The helicopter impacted a tree. The pilot did not report any mechanical problems with the helicopter prior to the accident.

Factual narrative

On February 11, 2004, about 1030 mountain standard time, a Bell 47-G3B2, N8AG, collided with a tree while attempting to land near Salome, Arizona. The helicopter was registered to, and operated by, the pilot under the provisions of 14 CFR Part 91. The commercial pilot and passenger were not injured; the helicopter sustained substantial damage. The personal cross-country flight departed from the Wickenburg, Arizona, area about 0930, with a planned destination of a landing zone near Salome. Visual meteorological conditions prevailed, and a flight plan had not been filed.

During a telephone interview with the National Transportation Safety Board investigator-in-charge (IIC), the pilot reported that he obtained a weather briefing prior to his departure. The briefer reported turbulent winds in the area but indicated that he did not believe there would be gusty wind conditions in the intended landing area. The pilot had planned to meet a fuel truck at the landing zone. The landing zone was a paved area about 200 feet wide and 300 feet long surrounded by trees, with a hill located to the north.

The pilot attempted to land on a northerly heading because of a slight headwind. He stated that while making the approach, about 25 feet above ground level, a "violent" gust of wind turned the helicopter 90 degrees to the left, and flipped it on its side. The helicopter impacted a tree. He does not normally fly in winds more than 15 miles per hour; however, because the briefer told him that he didn't think there would be gusty winds in the area, the pilot opted to initiate the flight. The pilot did not report any mechanical problems with the helicopter prior to the accident.

Aircraft

Registration
N8AG
Reported as
Bell 47-G3B2
Category
Helicopter
Serial number
6606
Engine
Lycoming TV0-435 Serie, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Departed
Wickenburg, AZ
Destination
Salome, AZ

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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
75
Certificates
Commercial, Private
Airplane ratings
Single-engine land
Medical
Class 3
Flight hours
1,320 total · 1,030 in this make and model
Role
Co-pilot
Age
85
Certificate
Commercial
Airplane ratings
Single-engine land

Weather

Conditions
Visual (VMC) · Day

FAA reports on this event · 1

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