ANC06LA044

NTSB accident investigation · Aerospatiale AS-350BA · Haines, AK · April 6, 2006

Accident · No injuriesLimited investigationFinal report
Date
April 6, 2006, 15:50 local (23:50 UTC)
Place
Haines, AK
Injuries
3 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N209CHAerospatiale AS-350BA
Weather
Visual (VMC) · Day
Status
Completed · report October 31, 2006
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
FAA-AL-JNU FSDO 05
FAA report
20060406004839A
Case key
63465

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 NTSB’s determination of the probable cause, and any contributing factors.

The pilot's failure to maintain adequate clearance from an object while landing a helicopter at a remote site, which resulted in the main rotor blades striking a tree.

Analysis

The airline transport certificated pilot was landing a helicopter in an area of grass near the beach of an island on a CFR Part 135 air taxi flight. The pilot indicated that he was focused on a log as a reference point, when just before touchdown, the main rotor blades struck a tree. The operator's director of operations indicated that the rotor blades could not be repaired at his facility, and were being sent to the blade manufacturer's repair facility.

Factual narrative

On April 6, 2006, about 1550 Alaska daylight time, an Aerospatiale AS-350BA helicopter, N209CH, sustained substantial damage when its main rotor blades struck trees during landing on Talsani Island, located in the Lynn Canal, about 13 miles east-southeast of Haines, Alaska. The helicopter was being operated as a visual flight rules (VFR) local area on-demand air taxi flight under Title 14, CFR Part 135, when the accident occurred. The helicopter was operated by Coastal Helicopters Inc., Juneau, Alaska. The airline transport certificated pilot, and the two passengers, were not injured. Visual meteorological conditions prevailed, and VFR company flight following procedures were in effect. The flight originated from a nearby landing area about 1545.

During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC), on April 7, the director of operations for the operator reported that the pilot was landing in an area of grass near the beach. According to the director of operations, the pilot indicated he was focused on a log he was using as a reference point, when just before touchdown, the main rotor blades struck a tree. The director of operations indicated that the rotor blades could not be repaired at his facility, and were being sent to the blade manufacturer's repair facility.

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 objectLanding
Object - tree(s)
Clearance - not maintainedPilot in commandCause

Aircraft

Registration
N209CH
Reported as
Aerospatiale AS-350BA
Category
Helicopter
Serial number
2494
Airframe hours
16,927
Engine
Lycoming 75-101-600A3, 650 horsepower, turbo shaft
Damage
Substantial damage
Flight
Part 135
Registered owner
Coastal Helicopters Inc.
Airworthiness certificate
Standard, Normal
Last inspection
AAIP · February 1, 2006 · 21 hours before
Departed
Haines, AK
Flight plan
Company 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
59
Injuries
None
Certificates
Airline transport, Flight engineer, Commercial
Airplane ratings
Multi-engine land, Single-engine land, Single-engine sea
Instrument ratings
Airplane, Helicopter
Medical
Class 2, With waivers/limitations
Last flight review
May 1, 2005
Seat
Right
Flight hours
18,227 total · 396 in this make and model · 4,860 as pilot in command · 45 in the last 90 days · 15 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Variable at 5 knots
Visibility
5 statute miles
Lowest ceiling
2,000 ft overcast
Temperature
45 °F, dew point 37 °F
Altimeter
29.79 inHg

FAA reports on this event · 1

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