Big Lake Airport
Aircraft Accident/Incident Report

Big Lake, Alaska 99652
Saturday, April 12, 2008 19:00 AKD

NTSB Narrative Summary Released at Completion of Accident

The solo commercial pilot said the airplane lifted off the runway, climbed about 50 feet, and the engine quit. He said the airplane descended into trees at the end of the runway, sustaining structural damage to both wings, the tail, and fuselage. The pilot, who is a certificated aircraft mechanic, said the airplane had not flown in about a year, and that he had spent the day getting the airplane ready for the flight. He said that the airplane had fuel, and seemed to run fine on the ground. The pilot reported that he had moved the airplane around, raised the tail, and drained about 1-2 gallons of clear fuel from the airplane. He said he also preheated the engine for several hours prior to the accident flight. A detailed examination of the engine was not done, and the reason for the loss of engine power was not determined.

NTSB Probable Cause Narrative

A loss of engine power during takeoff/initial climb for an undetermined reason.

Event Information

Type of Event Accident
Event Date 4/12/2008
Event Day of the Week Saturday
Time of Event 1900
Event Time Zone --
Event City Big Lake
Event State ALASKA
Event Country --
Zipcode of the event site 99652
Event Date Year 2008
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 613206N
Event Location Longitude 1494830W
Event Location Airport Big Lake
Event Location Nearest Airport ID BGQ
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 158
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1858 Atlantic Daylight Time
Direction of event from weather observation facility (degrees) 350
Weather Observation Facility ID PAWS
Elevation of weather observation facility 100
Distance of event from weather observation facility (units?) 12
Time Zone of the weather observation ADT
Lighting Conditions Day
Lowest Ceiling Height 6000
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) -1
Dew Point at event time (in degress fahrenheit) -9
Wind Direction (degrees magnetic) 200
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 4
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor 1
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 23722
NTSB Notification Source FAA Anchorage, ROC
NTSB Notification Date Apr 12 2008 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Jun 30 2008 11:48AM
User who most recently changed record NTSB\johb
Basic weather conditions Visual Meteorological Cond
FAA District Office Anchorage FSDO-03

Aircraft Involved

Aircraft #1

Aircraft Registration Number N38149
NTSB Number ANC08LA052
Missing Aircraft Indicator --
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 J5A
Aircraft Series Identifier --
Aircraft Serial Number 5-896
Certified Max Gross Weight 1450
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 3
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jan 1 2008 12:00AM
Airframe hours since last inspection --
Airframe Hours 5300
ELT Installed Yes
ELT Activated --
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Thane Weythman
Aircraft Owner Street Address --
Aircraft Owner City Fairbanks
Aircraft Owner State AK
Aircraft Owner Country USA
Aircraft Owner Zipcode 99508
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 Yes
Departure Airport Code BGQ
Departure City Big Lake
Departure State AK
Departure Country USA
Departure Time --
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 - initial climb
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jun 2 2008 1:06PM
User who most recently changed record STAM
Since inspection or accident Last Inspection
Event Location Runway Number and Location 25
Runway Length 2435
Runway Width 70
Sight Seeing flight No
Air Medical Flight No
Medical Flight --