ANC03LA099

NTSB accident investigation · de Havilland DHC-2 · King Salmon, AK · August 15, 2003

Accident · No injuriesLimited investigationFinal report
Date
August 15, 2003, 13:00 local (21:00 UTC)
Place
King Salmon, AK
Injuries
5 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N11GAde Havilland DHC-2
Weather
Visual (VMC) · Day
Status
Completed · report March 30, 2004
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
Federal Aviation Administration
FAA report
20030815037099A
Case key
57860

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 an unsuitable landing area, which resulted in an overrun and an on ground/water collision with terrain. A factor associated with the accident was 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.

OverrunLanding - roll
Unsuitable terrain or takeoff/landing/taxi area - selectedPilot in commandCause
Weather condition - tailwindFactor
On ground/water encounter with terrain/waterLanding - roll
Terrain condition - dirt bank/rising embankment

Analysis

The certificated commercial pilot was landing a float-equipped airplane on a small lake, and due to terrain clearance, a downwind approach was required. The pilot estimated the wind to be about 5 to 7 knots. Just after landing, he determined that he would not be able to stop the airplane before reaching the shoreline, so he applied full left rudder in an attempt to avoid the collision with the shore. During the turn, as the airplane came off of the step, the airplane's right float struck the shore. The airplane sustained structural damage to the right wing, and right wing lift strut. The pilot reported that there were no preaccident mechanical anomalies with the airplane.

Factual narrative

On August 15, 2003, about 1300 Alaska daylight time, a float-equipped de Havilland DHC-2 airplane, N11GA, sustained substantial damage when it collided with the shoreline during landing at a remote lake, located about 56 miles southeast of King Salmon, Alaska. The commercial certificated pilot, and the four passengers, were not injured. The Title 14, CFR Part 91 business flight was operated in support of a sport fish guiding business. The flight operated in visual meteorological conditions and company flight following procedures were in effect. The flight was en route from another remote lake at the time of the accident.

During a telephone conversation with the National Transportation Safety Board investigator-in-charge (IIC) on August 18, the pilot related that he was attempting to land on a small lake, and due to terrain clearance, a downwind approach was required. The pilot estimated the wind to be about 5 to 7 knots. He said that just after landing, he determined that he would not be able to stop the airplane before reaching the shoreline, so he applied full left rudder in an attempt to avoid the collision with the shore. He reported that during the turn, as the airplane came off of the step, the airplane's right float struck the shore. The airplane sustained structural damage to the right wing, and right wing lift strut.

The pilot reported that there were no preaccident mechanical anomalies with the airplane.

Neither the operator, nor the pilot, submitted an NTSB Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1/2).

Aircraft

Registration
N11GA
Reported as
de Havilland DHC-2
Category
Airplane
Serial number
1111
Engine
Pratt & Whitney R-985, 450 horsepower, reciprocating
Damage
Substantial damage
Flight
Business · Part 91
Operator
Alaska Anglers, Inc.
Registered owner
Ultimate Air LLC
Airworthiness certificate
Standard, Normal
Departed
AKN · King Salmon, AK
Destination
AKN · King Salmon, AK
Flight plan
Company VFR

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
56
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
9,000 total

Weather

Conditions
Visual (VMC) · Day
Wind
90° at 7 knots
Visibility
10 statute miles
Lowest ceiling
1,000 ft overcast

FAA reports on this event · 1

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