ANC06LA100

NTSB accident investigation · Eurocopter AS 350B2 · Skagway, AK · July 27, 2006

Accident · Serious injuriesLimited investigationFinal report
Date
July 27, 2006, 07:55 local (15:55 UTC)
Place
Skagway, AK
Injuries
1 serious, 2 minor, 3 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N301THEurocopter AS 350B2
Weather
Visual (VMC) · Day
Status
Completed · report February 26, 2007
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
FAA-AL-JNU FSDO 05
FAA report
20060727014689A
Case key
64238

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 adequate clearance from trees while hovering, which resulted in a main rotor strike with trees, an uncontrolled descent, and a collision with terrain.

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 objectHover
Object - tree(s)
Clearance - not maintainedPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - ground
Roll overDescent - uncontrolled

Analysis

The commercial certificated pilot was landing a helicopter on a remote wooden platform/helipad during a Title 14, CFR Part 135 sightseeing flight. While at a hover, as the pilot began a pedal turn to position the helicopter over the helipad, the helicopter drifted left. The main rotor struck a tree, the helicopter descended, collided with the ground, and rolled onto its right side.

Factual narrative

On July 27, 2006, about 0755 Alaska daylight time, a high skid-equipped Eurocopter AS 350B2 helicopter, N301TH, sustained substantial damage after a main rotor blade struck a tree while hovering over a remote landing area, about 9 miles northeast of Skagway, Alaska. The helicopter was being operated as a visual flight rules (VFR) local area sightseeing flight under Title 14, CFR Part 135, when the accident occurred. The helicopter was operated by Temsco Helicopters Inc., Ketchikan, Alaska. The commercial certificated pilot and two passengers were not injured. One passenger/guide received serious injuries, and two passengers received minor injuries. Visual meteorological conditions prevailed, and VFR company flight following procedures were in effect. The flight originated at the Skagway Airport, about 0735.

During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC), on July 27, the director of operations for the operator reported that the accident helicopter was one of two helicopters transporting passengers and guides to helipads located adjacent to Glacier Station, along the White Pass and Yukon Railroad. The accident flight was a combination sightseeing and hiking tour in conjunction with Packer Expeditions’ tour guides from Skagway. After landing at the helipads, the passengers and guides would hike a remote trail, and board the White Pass train for a return to Skagway. The director of operations indicated that the helipads are wooden platforms constructed next to the railroad, and have several trees adjacent to the pads. He said that the first helicopter landed at one helipad, and the accident pilot began his landing approach to the other helipad. The accident pilot made a pedal turn to position the helicopter over the helipad, but drifted left. The main rotor struck a tree, the helicopter descended, collided with the ground, and rolled onto its right side.

Aircraft

Registration
N301TH
Reported as
Eurocopter AS 350B2
Category
Helicopter
Serial number
9022
Airframe hours
2,834
Engine
Turbomeca 1D1, 745 horsepower, turbo shaft
Damage
Substantial damage
Flight
Part 135
Registered owner
Temsco Helicopters Inc.
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · July 1, 2006 · 59 hours before
Departed
PAGY · Skagway, 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
25
Injuries
None
Certificates
Commercial, Flight instructor
Instrument ratings
Helicopter
Medical
Class 2, Without waivers/limitations
Last flight review
May 1, 2006
Seat
Front
Flight hours
1,280 total · 206 in this make and model · 1,230 as pilot in command · 206 in the last 90 days · 88 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
225° at 15 knots
Visibility
6 statute miles
Lowest ceiling
1,500 ft broken
Temperature
50 °F
Altimeter
30.01 inHg

FAA reports on this event · 1

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