Kodiak (Lily Lake) Airport
Aircraft Accident/Incident Report

Kodiak, Alaska 99615
Saturday, July 18, 1998 15:54 AKD

NTSB Narrative Summary Released at Completion of Accident

The pilot taxied with carburetor heat on, and removed it just before takeoff from a lake. The engine ran rough at 300 feet above the water during takeoff. The pilot applied carburetor heat and the engine smoothed out. The pilot removed carburetor heat, and the engine lost total power. The airplane landed on a gravel road at the end of the lake, collapsing the struts. Inspection of the airplane, engine, and carburetor revealed no anomalies. The engine operated normally on a test stand. The temperature dew point combination falls within the 'moderate icing - cruise power' range of the Transport Canada carburetor icing chart.

NTSB Probable Cause Narrative

The loss of engine power due to carburetor icing and the pilot's improper use of the carburetor heat control. A factor associated with the accident is the rough and uneven terrain at the forced landing area.

Event Information

Type of Event Accident
Event Date 7/18/1998
Event Day of the Week Saturday
Time of Event 1554
Event Time Zone --
Event City KODIAK
Event State ALASKA
Event Country --
Zipcode of the event site 99615
Event Date Year 1998
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport KODIAK (LILY LAKE)
Event Location Nearest Airport ID 9Z3
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 139
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1553 Atlantic Daylight Time
Direction of event from weather observation facility (degrees) 210
Weather Observation Facility ID ADQ
Elevation of weather observation facility 73
Distance of event from weather observation facility (units?) 6
Time Zone of the weather observation ADT
Lighting Conditions Day
Lowest Ceiling Height 14000
Lowest Non-Ceiling Height 6000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 14
Dew Point at event time (in degress fahrenheit) 4
Wind Direction (degrees magnetic) 80
Variable Wind Indicator Unknown
Wind Speed (knots) 8
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Minor
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 --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 643
NTSB Notification Source --
NTSB Notification Date Jul 18 1998 12:00AM
NTSB Notification Time 1715
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 11 2000 11:35AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N8162C
NTSB Number ANC98LA102
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 Piper
Aircraft Model PA-18
Aircraft Series Identifier PA-18
Aircraft Serial Number 18-3618
Certified Max Gross Weight 1750
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 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Apr 16 1998 12:00AM
Airframe hours since last inspection 11
Airframe Hours 4261
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name JIM VENABLE
Aircraft Owner Street Address 1296 SGT CREEK ROAD
Aircraft Owner City KODIAK
Aircraft Owner State AK
Aircraft Owner Country
Aircraft Owner Zipcode 99615
Operator is an individual? --
Operator Name JOHN R. MORTON
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address PO BOX 44
Operator City KODIAK
Operator State AK
Operator Country
Operator Zip code 99615
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) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code 9Z3
Departure City LILY LAKE
Departure State AK
Departure Country
Departure Time 1548
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 Takeoff
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 2
Runway Length 2100
Runway Width 300
Sight Seeing flight No
Air Medical Flight No
Medical Flight --