ANC05LA035

NTSB accident investigation · Bellanca 8GCBC · Koyukuk, AK · February 15, 2005

Accident · Minor injuriesLimited investigationFinal report
Date
February 15, 2005, 13:00 local (17:00 UTC)
Place
Koyukuk, AK
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N86911Bellanca 8GCBC
Weather
Visual (VMC) · Day
Status
Completed · report December 20, 2005
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
FAA-AL-FAI FSDO 01
FAA report
20050215002639A
Case key
61018

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 selection of unsuitable terrain for takeoff, which resulted in an in flight collision with the snow during takeoff initial climb. A factor contributing to the accident was soft snow conditions.

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 terrain/waterTakeoff - initial climb
Terrain condition - snow covered
Unsuitable terrain or takeoff/landing/taxi area - selectedPilot in commandCause
Terrain condition - softFactor

Analysis

After taxiing to the north end of a remote, snow-covered lake that was 3,000 feet long, the private certificated pilot took off in a ski-equipped airplane. The pilot said the snow was about 5 feet deep, and the temperature was about 40 degrees F, making the snow conditions sticky. He indicated that his departure was toward the south, and the wind was from the south, about 10 knots. He applied full engine power and began the takeoff run, which was initially slow until the skis of the airplane dropped into previously compacted ski tracks. The airplane lifted off from the snow near the south end of the lake, and climbed to about 5 feet above the snow. The pilot said he began a gentle left turn in an attempt to avoid spruce trees at the south end of the lake, but the left wingtip of the airplane brushed the snow, pulling the airplane slightly left and slowing the climb. The pilot said he knew the airplane would not clear the trees, and he landed the airplane in deep snow. The airplane rapidly decelerated and nosed down. It received structural damage to the right wing and right main landing gear.

Factual narrative

On February 15, 2005, about 1300 Alaska standard time, a ski-equipped Bellanca 8GCBC airplane, N86911, sustained substantial damage when it collided with snow-covered terrain during takeoff from a remote area, about 26 nautical miles north-northwest of Koyukuk, Alaska. The airplane was being operated as a visual flight rules (VFR) cross-country personal flight under Title 14, CFR Part 91, when the accident occurred. The airplane was operated by the pilot. The private certificated pilot, the sole occupant, received minor injuries. Visual meteorological conditions prevailed. The flight was en route to Galena, Alaska, and no flight plan was filed, nor was one required.

During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC), on February 16, the pilot reported that he and a mechanic flew to a remote, snow-covered lake to repair an engine magneto on the accident airplane, which had been disabled at the lake for about one month. The lake is about 3,000 feet long. After engine repairs were completed, the engine was started, and the pilot taxied the airplane to the north end of the lake. The pilot said the snow was about 5 feet deep, and the temperature was about 40 degrees F, making the snow conditions sticky. He indicated that his departure was toward the south, and the wind was from the south, about 10 knots. He applied full engine power and began the takeoff run, which was initially slow until the skis of the airplane dropped into previously compacted ski tracks. The airplane lifted off from the snow near the south end of the lake, and climbed to about 5 feet above the snow. The pilot said he began a gentle left turn in an attempt to avoid spruce trees at the south end of the lake, but the left wingtip of the airplane brushed the snow, pulling the airplane slightly left and slowing the climb. The pilot said he knew the airplane would not clear the trees, and he landed the airplane in deep snow. The airplane rapidly decelerated and nosed down. It received structural damage to the right wing and right main landing gear.

Aircraft

Registration
N86911
Reported as
Bellanca 8GCBC
Category
Airplane
Serial number
25-74
Engine
Lycoming O-360-C2A, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
James W. Sears Jr.
Airworthiness certificate
Standard, Normal
Departed
Koyukuk, AK
Destination
PAGA · Galena

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
38
Injuries
Minor
Certificate
Private
Airplane ratings
Single-engine sea, Single-engine land
Medical
Class 2, Without waivers/limitations
Last flight review
July 1, 2004
Seat
Front
Flight hours
1,207 total · 120 in this make and model · 1,140 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 10 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
39 °F

FAA reports on this event · 1

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