Aircraft Accident/Incident Report

Port Alsworth, Alaska 99653
Friday, August 30, 1996 15:30 AKD

NTSB Narrative Summary Released at Completion of Accident

The pilot had landed at a field site to pick up two passengers. After the landing, he drained the fuel from the left fuel tank to store for future use. The operator stated this is their normal practice, and as a result, operate the airplanes with the fuel selector valve in the right fuel tank position. When the airplane was approximately 5 minutes from the destination, the engine stopped producing power. The airplane landed and nosed over. Subsequent examination showed that the right fuel tank contained 7.3 gallons of usable fuel and the left fuel tank contained 3.1 gallons of usable fuel. The engine was started and it operated normally. The passengers stated the pilot did not dip the fuel tank prior to departure and that the return flight was turbulent.

NTSB Probable Cause Narrative

The fuel starvation caused by the unporting of the right fuel tank, and the pilot's inadequate preflight by not dipping the fuel tank to ensure sufficient fuel quantity to prevent the unporting.

Event Information

Type of Event Accident
Event Date 8/30/1996
Event Day of the Week Friday
Time of Event 1530
Event Time Zone --
Event City PORT ALSWORTH
Event State ALASKA
Event Country --
Zipcode of the event site 99653
Event Date Year 1996
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport
Event Location Nearest Airport ID
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Pilot
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Day
Lowest Ceiling Height 2500
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 25
Air Temperature at event time (in degrees celsius) 18
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Variable
Wind Speed (knots) 4
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor 1
Injury Total None 1
Injury Total Serious 1
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 859
NTSB Notification Source --
NTSB Notification Date Aug 30 1996 12:00AM
NTSB Notification Time 1628
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 8 2000 10:16AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N8241V
NTSB Number ANC96LA134
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 135: Air Taxi & Commuter
Type of Flight Plan filed Company VFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Cessna
Aircraft Model 180
Aircraft Series Identifier 180
Aircraft Serial Number 18051743
Certified Max Gross Weight 2800
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Aug 20 1996 12:00AM
Airframe hours since last inspection 36
Airframe Hours 9357
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name GLEN & JEAN ALSWORTH
Aircraft Owner Street Address BOX 1
Aircraft Owner City PORT ALSWORTH
Aircraft Owner State AK
Aircraft Owner Country
Aircraft Owner Zipcode 99653
Operator is an individual? --
Operator Name LAKE CLARK AIR INC.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address
Operator City
Operator State
Operator Country
Operator Zip code
Operator Code HXXC
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not Non-scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Passenger Only
Type of Flying (Per_Bus / Primary) Unknown
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code
Departure City MULCHATNA RIVER
Departure State AK
Departure Country
Departure Time 0
Departure Time Zone
Destination Same as Local Flt crash at destination city
Destination Airport Code 5NW
Destination City
Destination State AK
Destination Country
Specific Phase of Flight Cruise
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:34AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --