Sackman Field Airport
Aircraft Accident/Incident Report

Columbia, Illinois 62236
Saturday, June 23, 2007 13:53 CDT

NTSB Narrative Summary Released at Completion of Accident

The airplane impacted terrain following a loss of engine power during a maintenance test flight with a company certified flight instructor (CFI) and mechanic. Earlier on the day of the accident, the airplane experienced a loss of engine power during an instructional flight. The student pilot switched fuel tanks, engine power was regained, and the airplane landed without further incident. Subsequent maintenance inspection revealed no fuel flow when fuel was drained through the gascolator with the right fuel tank selected. The mechanic inspected the airplane and called the CFI to perform a maintenance test flight in the airport traffic pattern. No anomalies were noted during the engine runup for the maintenance test flight. The test flight was planned to be conducted in the airport traffic pattern at traffic pattern altitude. The CFI reported that on the turn to base leg, she adjusted the throttle to 1,700 rpm, and the engine started to sputter and ran rough at an engine speed of 500 rpm. The CFI reported running the engine-out checklist by memory, but it did not accomplish an engine restart. The CFI decided the best option was to land in a cornfield to avoid trees and power lines. A postaccident investigation revealed that there were no detents evident in the fuel selector and that it was difficult to turn. The fuel selector did not possess safety wire on its mounting screws. The carburetor drain valve exhibited a brown colored material consistent with rust. The carburetor float had a green line around the float and rested above its minimum level. The green line was consistent with a reaction of the bronze float with water. The accelerator pump check valve was stuck and material consistent with water corrosion was noted within the accelerator pump. The bottom portion of the carburetor bowl contained a material consistent with rust and shiny gouges consistent with recent tooling marks adjacent to the area possessing rust at the bottom of the bowl. The airplane was operated without shoulder harnesses while providing rental/flight instruction.

NTSB Probable Cause Narrative

The certified flight instructor's (CFI's) inadequate preflight planning/preparation of a test altitude that would afford an on airport landing in the event of engine power loss. Additional causes were the CFI not flying a traffic pattern that would allow for an on airport landing should an engine power loss occur, the partial fuel system obstruction, and the inadequate maintenance by the mechanic. Contributing factors were the improperly serviced fuel selector and the low altitude at the time of engine power loss.

Event Information

Type of Event Accident
Event Date 6/23/2007
Event Day of the Week Saturday
Time of Event 1353
Event Time Zone Central Daylight Time
Event City Columbia
Event State ILLINOIS
Event Country --
Zipcode of the event site 62236
Event Date Year 2007
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport Sackman Field
Event Location Nearest Airport ID H49
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 0.5
Degrees magnetic from airport --
Airport Elevation 4220
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1453 Central Daylight Time
Direction of event from weather observation facility (degrees) 45
Weather Observation Facility ID CPS
Elevation of weather observation facility 413
Distance of event from weather observation facility (units?) 8
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 7000
Lowest Non-Ceiling Height 2200
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 27
Dew Point at event time (in degress fahrenheit) 21
Wind Direction (degrees magnetic) --
Variable Wind Indicator --
Wind Speed (knots) 4
Wind Velocity Indicator --
Wind Gust Indicator Unknown
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.82
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) 23446
NTSB Notification Source
NTSB Notification Date Jun 25 2007 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Apr 30 2008 1:28PM
User who most recently changed record NTSB\johb
Basic weather conditions Visual Meteorological Cond
FAA District Office St. Louis FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N1768T
NTSB Number CHI07LA179
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 PA-28-140
Aircraft Series Identifier --
Aircraft Serial Number 28-7125087
Certified Max Gross Weight 2150
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 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Mar 1 2007 12:00AM
Airframe hours since last inspection 63.74
Airframe Hours 7665.56
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Andrew Mueller
Aircraft Owner Street Address --
Aircraft Owner City St. Louis
Aircraft Owner State MO
Aircraft Owner Country USA
Aircraft Owner Zipcode 63104
Operator is an individual? No
Operator Name St. Louis Sport Aviation LLC
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 2213 Sidney St
Operator City St. Louis
Operator State MO
Operator Country USA
Operator Zip code 63104
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) Flight Test
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code H49
Departure City Columbia
Departure State IL
Departure Country USA
Departure Time 1330
Departure Time Zone CDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code H49
Destination City --
Destination State --
Destination Country --
Specific Phase of Flight Emergency landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Apr 12 2008 12:56AM
User who most recently changed record BOWL
Since inspection or accident Time of Accident
Event Location Runway Number and Location 21
Runway Length 2450
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --