Aircraft Accident/Incident Report

Big Lake, Alaska 99652
Wednesday, September 5, 2001 14:30 AKD

NTSB Narrative Summary Released at Completion of Accident

The commercial certificated pilot was in cruise flight about 800 feet agl in a float-equipped airplane, when the engine began to lose power. The pilot reported that he switched the fuel tank selector from the right tank to the "BOTH" position, and the engine continued to run for about another two minutes. He said he did not apply any carburetor heat, and the engine again lost power. The pilot selected a forced landing area on a small, marshy lake. After landing, he noticed leading edge damage on the left horizontal stabilizer. He said the damage appeared to be the result of striking a tree limb during the emergency landing. The pilot, who is also a certificated mechanic, said he replaced the entire leading edge of the stabilizer. The pilot said that after the emergency landing, he did not find any obvious engine problem. The wing fuel tanks contained about 1.5 to 2 inches of fuel, and the fuel screens and the fuel tank sumps were clean. He said he suspected carburetor icing, or water in the fuel, as the engine problem.

NTSB Probable Cause Narrative

A loss of engine power during cruise flight for an undertermined reason.

Event Information

Type of Event Accident
Event Date 9/5/2001
Event Day of the Week Wednesday
Time of Event 1430
Event Time Zone --
Event City BIG LAKE
Event State ALASKA
Event Country --
Zipcode of the event site 99652
Event Date Year 2001
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 613200N
Event Location Longitude 1494800W
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 --
Investigator's weather source Pilot
Time of the weather observation
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID --
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation --
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 3000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 16
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) --
Variable Wind Indicator --
Wind Speed (knots) --
Wind Velocity Indicator Calm
Wind Gust Indicator Unknown
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.94
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 11701
NTSB Notification Source FAA REGIONAL OPERATIONS CENTER
NTSB Notification Date Sep 27 2001 12:00AM
NTSB Notification Time 1545
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Jun 3 2002 12:16PM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office FAA-AL-ANC FSDO 03

Aircraft Involved

Aircraft #1

Aircraft Registration Number N74806
NTSB Number ANC01LA148
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Cessna
Aircraft Model 180
Aircraft Series Identifier --
Aircraft Serial Number 50335
Certified Max Gross Weight 2700
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 May 2 2001 12:00AM
Airframe hours since last inspection 20
Airframe Hours --
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name CHESTER A. MEDER
Aircraft Owner Street Address --
Aircraft Owner City PALMER
Aircraft Owner State AK
Aircraft Owner Country USA
Aircraft Owner Zipcode 99645
Operator is an individual? No
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? --
Certified for Part 133 or 137 Operation --
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) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code --
Departure City LAKE CLARK
Departure State AK
Departure Country USA
Departure Time 1300
Departure Time Zone ADT
Destination Same as Local Flt --
Destination Airport Code 0AK1
Destination City WASILLA
Destination State AK
Destination Country USA
Specific Phase of Flight Emergency descent/landing
Report sent to ICAO? No
Evacuation occurred --
Date of most recent change to record May 1 2002 5:16PM
User who most recently changed record STAM
Since inspection or accident --
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --