ANC02LA101

NTSB accident investigation · Helio H-295 · Igiugig, AK · August 15, 2002

Accident · No injuriesLimited investigationFinal report
Date
August 14, 2002, 16:30 local (Aug 15, 2002, 00:30 UTC)
Place
Igiugig, AK
Injuries
4 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N920ASHelio H-295
Weather
Visual (VMC) · Day
Status
Completed · report April 29, 2003
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
FAA-AL-ANC FSDO 03
FAA report
20020814025709A
Case key
55534

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

The pilot's inadequate evaluation of the wind/weather conditions resulting in a collision with an embankment during the takeoff run. A factor contributing to the accident was a sudden wind shift to a tailwind.

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.

On ground/water encounter with weatherTakeoff - roll/run
Weather condition - sudden windshiftFactor
Weather evaluation - inadequatePilot in commandCause
Weather condition - tailwindFactor
In flight collision with terrain/waterTakeoff - roll/run
Terrain condition - dirt bank/rising embankment

Analysis

The airline transport certificated pilot was departing toward the west from a remote lake in a float-equipped airplane. The pilot said the wind conditions at the time of his takeoff were from the west at eight to ten knots. During the takeoff run, the airplane came up on-step, but the pilot said he felt a wind change from a headwind, to a right quartering tailwind of about eight knots. He reported that he had already passed a point where he could safely abort the takeoff, and he saw the airplane approaching the end of the lake. He said he rotated into a climb attitude and the airplane lifted off the water, but the bottom of the float assembly struck the edge of the lake bank. The pilot pulled the engine power to idle, and the airplane slid to a stop on the tundra.

Factual narrative

On August 14, 2002, about 1630 Alaska daylight time, a float-equipped Helio Courier H-295 airplane, N920AS, sustained substantial damage when it collided with an embankment during the takeoff run from a remote lake, about 29 miles east of Igiugig, Alaska. The airplane was being operated as a visual flight rules (VFR) cross-country business flight under Title 14, CFR Part 91, when the accident occurred. The airplane was operated by the Alaska Sportsman Lodge LLC., Igiugig. The airline transport certificated pilot, and the three passengers, were not injured. Visual meteorological conditions prevailed. VFR company flight following procedures were in effect.

During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC), on August 14, the pilot reported that he was departing toward the west from Crosswind Lake to transport lodge guests back to the lodge. The pilot said the wind conditions at the time of his takeoff were from the west at eight to ten knots. During the takeoff run, the airplane came up on-step, but the pilot said he felt a wind change from a headwind, to a right quartering tailwind of about eight knots. He reported that he had already passed a point where he could safely abort the takeoff, and he saw the airplane approaching the end of the lake. He said he rotated into a climb attitude and the airplane lifted off the water, but the bottom of the float assembly struck the edge of the lake bank. The pilot pulled the engine power to idle, and the airplane slid to a stop on the tundra.

Following recovery of the airplane to Igiugig, in a telephone conversation on August 20, with a representative of the lodge, they reported the airplane received damage to the propeller, the left and right float assemblies, and the left wing flap assembly. In addition, the fuselage received structural wrinkling.

Aircraft

Registration
N920AS
Reported as
Helio H-295
Category
Airplane
Serial number
1279
Engine
Continental GO-480-G1D6, 295 horsepower, reciprocating
Damage
Substantial damage
Flight
Business · Part 91
Registered owner
Alaska Sportsman Lodge LLC.
Airworthiness certificate
Standard, Normal
Departed
Igiugig, AK
Destination
Igiugig, 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
55
Injuries
None
Certificates
Flight instructor, Commercial, Flight engineer, Airline transport
Airplane ratings
Single-engine sea, Multi-engine sea, Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Last flight review
July 3, 2002
Seat
Left
Flight hours
20,000 total · 100 in this make and model · 19,000 as pilot in command · 200 in the last 90 days · 100 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
325° at 8 knots
Visibility
30 statute miles
Lowest ceiling
None
Temperature
68 °F

FAA reports on this event · 1

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