ANC97LA129

NTSB accident investigation · Piper PA-32-300 · Bethel, AK · August 24, 1997

Accident · Serious injuriesLimited investigationFinal report
Date
August 24, 1997, 14:32 local (22:32 UTC)
Place
Bethel, AK
Injuries
1 serious, 1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N4170RPiper PA-32-300
Weather
Visual (VMC) · Day
Status
Completed · report July 13, 1998
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19970824023329A
Case key
3050

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 improper selection of a fuel tank that did not contain fuel, which resulted in subsequent fuel starvation and loss of engine power. A factor relating to the accident was: the inability to reach suitable terrain for a forced landing.

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) - nonmechanicalClimb
Fluid,fuel - starvationCause
Fuel tank selector position - improperPilot in commandCause
Forced landingEmergency descent/landing
In flight collision with terrain/waterEmergency landing
Terrain condition - none suitableFactor

Analysis

Operator personnel reported that shortly after takeoff, the engine began to lose power at an altitude of about 600 feet mean sea level, and that emergency procedures failed to restore engine power. The pilot turned back toward the departure airport, and selected an emergency landing area about 1 mile from the airport. The airplane touched down on soft tundra covered terrain and received damage to the landing gear, fuselage, and wings. An FAA airworthiness inspector examined the airplane at the accident site. The fuel selector was found positioned to the left wing tip fuel tank. The left tip tank did not contain any fuel. No fuel was found in the fuel line from the gascolator to the fuel pump. No fuel was found in the line from the fuel pump to the engine manifold. After recovery, the engine was started, and it developed full power with, and without, the fuel boast pump in the 'ON' position. During the engine run, the left tip tank was selected. The engine continued to run for 1.5 minutes before quitting.

Factual narrative

On August 24, 1997, at 1432 Alaska daylight time, a Piper PA-32-300, N4170R, crashed during a forced landing about 1 mile east of Bethel, Alaska. The airplane was being operated as a visual flight rules (VFR) on-demand passenger flight, under Title 14 CFR Part 135, when the accident occurred. The airplane, operated by Kusko Aviation Inc., Bethel, sustained substantial damage. The certificated commercial pilot received serious injuries. The sole passenger was not injured. Visual meteorological conditions prevailed. VFR company flight following procedures were in effect.

At 1430:09, the flight departed on runway 36 for a planned flight to Quinhagak, Alaska. The chief pilot for the operator reported that after departure, the flight turned toward the southeast. The airplane engine began to lose power at an altitude of about 600 feet mean sea level. Emergency procedures failed to restore engine power, and the pilot turned back for Bethel.

A review of transcripts of voice recordings from the Bethel Air Traffic Control Tower (ATC), revealed at 1431:47, the pilot contacted the Bethel ATC, and stated: "and Bethel Tower, 70R like to return, don't have a problem, but I wanna check something out." The Bethel ATC controller cleared the airplane to land on any runway. At 1432:25, the pilot stated: "70R's out of --- out of engines."

The pilot performed an emergency landing about 1 mile from the approach end of runway 29 at Bethel. The airplane touched down on soft, tundra covered terrain. The airplane received damage to the landing gear, fuselage, and wings.

The chief pilot for the operator reported the normal company procedure for departing airplanes is to depart with the wing fuel tip tanks full. Fuel is burned from the main fuel tanks first, before using the tip tanks.

A Federal Aviation Administration (FAA) airworthiness inspector from the Anchorage Flight Standards District Office (FSDO), examined the airplane at the accident site. The fuel selector was found positioned on the left wing tip fuel tank. The left tip tank did not contain any fuel. The right wing tip tank was about 1/2 full. The left main fuel tank was slightly less than full. The right main tank was nearly full. The inspector reported that no fuel was found in the fuel line from the gascolator to the fuel pump. No fuel was found in the line from the fuel pump to the engine manifold.

After recovery, the engine was started. The FAA inspector reported the engine developed full power with, and without, the fuel boast pump in the "ON" position. During the engine run, the left tip tank was selected. The engine continued to run for 1.5 minutes before quitting.

Aircraft

Registration
N4170R
Reported as
Piper PA-32-300
Category
Airplane
Serial number
32-40502
Engine
Lycoming IO-540-K1A5, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 135
Operator
Kusko Aviation
Registered owner
Kusko Aviation, Inc
Airworthiness certificate
Standard, Normal
Departed
BET
Destination
AQH · Quinhagak, AK
Flight plan
Company VFR
Airport
BET · Bethel

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
62
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
13,000 total · 7,600 in this make and model · 1,300 as pilot in command · 100 in the last 90 days · 20 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
270° at 6 knots
Visibility
10 statute miles
Lowest ceiling
1,300 ft broken
Temperature
52 °F, dew point 50 °F
Altimeter
29.00 inHg
Observed at
BET, 1 nm away

FAA reports on this event · 1

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

Other investigations on N4170R · 1

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