ANC09LA023

NTSB accident investigation · Helio H-295 · Healy, AK · March 14, 2009

Accident · No injuriesLimited investigationFinal report
Date
March 13, 2009, 16:00 local (Mar 14, 2009, 00:00 UTC)
Place
Healy, AK
Injuries
3 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N6478VHelio H-295
Defining event
Initial climb: Collision during takeoff/land
Weather
Visual (VMC) · Day
Status
Completed · report June 11, 2009
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
FAA
FAA report
20090313046889A
Case key
73489

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 delay in initiating a climb while he was packing snow with the airplane's skis in preparation for landing, resulting in a collision with brush.

Findings · 3

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Action: delayed actionPersonnel issues › Action/decision · PilotHelio H-295: 2 casesAll aircraft: 894 casesProbable cause
Terrain: snowy/icy terrainEnvironmental issues › Physical environment · Effect on equipmentHelio H-295: 1 caseAll aircraft: 77 cases
Performance/control parameters: climb rateAircraft › Aircraft oper/perf/capability · Not attained/maintainedHelio H-295: 2 casesAll aircraft: 265 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The airline transport pilot was on an on-demand air taxi passenger flight in a ski-equipped airplane. The pilot said that the accident occurred while he was packing snow at the landing site by laying down tracks with the airplane's skis in preparation for landing. During the last pass, he said that as the airplane lifted off the snow, the wings encountered high brush; when he pulled back on the elevator control to clear the brush, he said that he believed that the tail ski contacted the snow and dragged the airplane down into the brush. The pilot said that there were no known mechanical problems with the airplane prior to the accident. The fuselage and empennage sustained structural damage during the encounter with brush and terrain.

Factual narrative

On March 13, 2009, about 1600 Alaska daylight time, a ski-equipped Helio H-295 airplane, N6478V, sustained substantial damage when it impacted terrain while laying down tracks to pack snow on the snow-covered terrain prior to landing, at the Stampede airstrip, about 42 miles west of Healy, Alaska. The airplane was operated by Wright Air Service, Inc., Fairbanks, Alaska, as a visual flight rules (VFR), on-demand passenger flight under Title 14, CFR Part 135, when the accident occurred. The airline transport pilot and two passengers were not injured. Visual meteorological conditions prevailed, and a VFR flight plan was filed. The flight departed Fairbanks, Alaska, about 1510. During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC) on March 14, the pilot said he was laying down tracks with the airplane's ski's to pack the snow on the airstrip prior to landing. He said when the airplane lifted off the snow, the wings encountered high brush, and he pulled back on the elevator control to clear the brush. He said as he did so, he believed the tail ski contacted the snow and dragged the airplane down into the brush. The pilot said there were no known mechanical problems with the airplane prior to the accident. The fuselage and empennage sustained structural damage during the encounter with brush and terrain.

Aircraft

Registration
N6478V
Reported as
Helio H-295
Category
Airplane
Serial number
1431
Airframe hours
8,018
Engine
Lycoming GO-480 SERIES, 295 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 135
Operator
Wright Air Service Inc, doing business as Wright Air Service
Registered owner
Bursiel Equipment Inc
Airworthiness certificate
Standard, Utility; Standard, Normal
Last inspection
100 hour · February 26, 2009
Departed
FAI · Fairbanks, AK
Destination
Healy, AK
Flight plan
VFR
Airport
Z90 · Stampede, runway 33, grass/turf

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
37
Injuries
None
Certificate
Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Without waivers/limitations
Last flight review
October 13, 2008
Seat
Left
Flight hours
12,600 total · 3,500 in this make and model · 11,100 as pilot in command · 140 in the last 90 days · 50 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Variable at 8 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
-20 °F

FAA reports on this event · 1

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