ANC03CA088

NTSB accident investigation · de Havilland DHC-2 · Iliamna, AK · June 25, 2003

Accident · No injuriesData collectionFinal report
Date
June 25, 2003, 15:30 local (23:30 UTC)
Place
Iliamna, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N930TGde Havilland DHC-2
Weather
Visual (VMC) · Day
Status
Completed · report November 25, 2003
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Case key
57647

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 incorrect selection of the fuel selector valve position during takeoff which resulted in fuel starvation. A factor associated with the accident was inadequate transition training provided to the pilot by the company/operator management.

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.

Loss of engine power(total) - nonmechanicalTakeoff - initial climb
Fuel tank selector position - incorrectPilot in commandCause
Inadequate transition/upgrade trainingCompany/operator managementFactor
Fluid,fuel - starvationCause
Forced landingDescent - emergency
In flight collision with terrain/waterEmergency landing after takeoff
Terrain condition - roadway/highway

Analysis

The solo commercial certificated pilot was departing from a remote lake in a float-equipped airplane. The pilot reported that this was the first time he had been assigned to fly the accident airplane, and that the airplane's main fuel valve was different than that of any other DHC-2 he had previously flown. Prior to takeoff, he placed the fuel selector valve in the "up" position, believing he had selected the center fuel tank. Just after takeoff, as the airplane climbed to about 30 feet above the water, the engine lost all power, and the airplane descended and struck a gravel-covered road at the departure end of the lake. The airplane sustained substantial damage to the fuselage. The pilot noted that a postaccident inspection of the airplane revealed that when he placed the fuel valve in the "up" position, he inadvertently selected the "off" position. The pilot added that the operator did not inform him of the differences associated with the accident airplane's fuel valve.

Factual narrative

On June 25, 2003, about 1530 Alaska daylight time, a float-equipped de Havilland DHC-2 airplane, N930TG, sustained substantial damage when it collided with a gravel-covered road following a loss of engine power on takeoff from a lake located adjacent to the Iliaska Lodge, Iliamna, Alaska. The airplane was being operated by Iliaska Lodge as a visual flight rules (VFR) business flight under Title 14, CFR Part 91, when the accident occurred. The solo commercial certificated pilot was not injured. Visual meteorological conditions prevailed, and a VFR flight plan was in effect. The flight originated at the accident lake, about 1525.

During a telephone conversation with a National Transportation Safety Board investigator on August 4, the pilot reported that he was positioning the airplane in order to pick up a group of passengers who were clients of Iliaska Lodge. He said that this was the first time he had been assigned to fly the accident airplane, and that the airplane's main fuel valve was different than that of any other DHC-2 he had previously flown. The pilot stated that prior to takeoff, he placed the fuel selector valve in the "up" position, believing he had selected the center fuel tank. Just after takeoff, as the airplane climbed to about 30 feet above the water, the engine lost all power, and the airplane descended and struck a gravel-covered road at the departure end of the lake. The airplane sustained substantial damage to the fuselage.

The pilot noted that a postaccident inspection of the airplane revealed that when he placed the fuel valve in the "up" position, he inadvertently selected the "off" position. The pilot added that the operator did not inform him of the differences associated with the accident airplane's fuel valve.

Aircraft

Registration
N930TG
Reported as
de Havilland DHC-2
Category
Airplane
Serial number
1041
Engine
Pratt & Whitney 985, 450 horsepower, reciprocating
Damage
Substantial damage
Flight
Business · Part 91
Registered owner
Iliaska Lodge
Airworthiness certificate
Standard, Normal
Departed
ILI · Iliamna, AK
Destination
ILI · Iliamna, AK
Flight plan
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
64
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land, Single-engine sea
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
4,470 total · 1,100 in this make and model · 4,320 as pilot in command · 37 in the last 90 days · 19 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day

Other investigations on N930TG · 2

Matched to the same aircraft by N-number and date.