Aircraft Accident/Incident Report

Wasilla, Alaska 99687
Saturday, July 29, 1989 13:25 AKD

NTSB Narrative Summary Released at Completion of Accident

THE PLT FLEW THE FLOAT PLANE TO COTTONWOOD LAKE FOR MAINTENANCE. A QUICK DRAIN WAS INSTALLED IN ONE WING OF THE ACFT & THE OTHER WING TANK WAS DRAINED. THE PLT WAS AWARE OF THE LOW FUEL CONDITION, BUT DID NOT VISUALLY INSPECT THE TANKS BEFORE THE FLT. THE MECHANIC, WHO WORKED ON THE ACFT, TOLD THE PLT OF THE LOW FUEL CONDITION, BUT THE PLT BELIEVED THERE WAS SUFFICIENT FUEL TO FLY TO WASILLA LAKE, WHICH WAS JUST 3 MI WEST OF COTTONWOOD LAKE. SHORTLY AFTER TAKEOFF, THE ENG LOST POWER. THE PLT TRIED TO TURN BACK TO COTTONWOOD LAKE TO LAND, BUT DIDN'T HAVE ENOUGH ALT. HE SAID THE ACFT STALLED & CRASHED INTO TREES AS HE WAS TURNING AWAY FROM A HOUSE. LESS THAN ONE GAL OF FUEL WAS FOUND IN ONE TANK & THE OTHER TANK HAD ABOUT 1 QUART OF FUEL REMAINING. ACCORDING TO THE OWNER'S MANUAL, 1.5 GAL OF FUEL WAS UNUSABLE IN MANEUVERING FLT & ONE GAL WAS UNUSABLE IN LEVEL FLT.

NTSB Probable Cause Narrative

INADEQUATE PREFLIGHT BY THE PILOT WHICH RESULTED IN FUEL STARVATION DUE TO AN INADEQUATE SUPPLY OF FUEL AND HIS FAILURE TO MAINTAIN ADEQUATE AIRSPEED WHILE MANEUVERING BACK TOWARD THE LAKE WHICH RESULTED IN AN INADVERTENT STALL. THE HOUSE & TREES WERE CONSIDERED TO BE CONTRIBUTING FACTORS.

Event Information

Type of Event Accident
Event Date 7/29/1989
Event Day of the Week Saturday
Time of Event 1325
Event Time Zone --
Event City WASILLA
Event State ALASKA
Event Country --
Zipcode of the event site 99687
Event Date Year 1989
Event Date Month 7
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 0
Degrees magnetic from airport 0
Airport Elevation 0
Weather Briefing Completeness Unknown
Investigator's weather source Unknown
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 7000
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 30
Air Temperature at event time (in degrees celsius) 13
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 60
Variable Wind Indicator Unknown
Wind Speed (knots) 15
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 25
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation Light
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 --
Injury Total None --
Injury Total Serious 1
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 1007
NTSB Notification Source --
NTSB Notification Date Jul 30 1989 12:00AM
NTSB Notification Time 1338
Fiche Number and/or location -used to find docket information 39169
Date of most recent change to record Dec 13 2000 12:50PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N9681B
NTSB Number ANC89FA130
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name CESSNA
Aircraft Model 180A
Aircraft Series Identifier 180A
Aircraft Serial Number 32978
Certified Max Gross Weight 2650
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 Apr 14 1989 12:00AM
Airframe hours since last inspection 184
Airframe Hours 3311
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name ERICH P. NAPFLIN
Aircraft Owner Street Address P.O. BOX 873095
Aircraft Owner City WASILLA
Aircraft Owner State AK
Aircraft Owner Country
Aircraft Owner Zipcode 99687
Operator is an individual? --
Operator Name
Operator Same as Owner? Yes
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
Owner has at least one certificate None
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 --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Ferry
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 1323
Departure Time Zone ADT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Maneuvering
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:35AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length 0
Runway Width 0
Sight Seeing flight No
Air Medical Flight No
Medical Flight --