N/A Airport
Aircraft Accident/Incident Report

St. Joesph, Illinois 61873
Friday, June 20, 2014 19:35 CDT

NTSB Narrative Summary Released at Completion of Accident

On June 20, 2014, about 1935 central daylight time, an experimental amateur-built Schumacher model Challenger II airplane, N441MS, was substantially damaged when it collided with power lines and terrain during a forced landing near St. Joseph, Illinois. The private pilot and passenger were not injured. The airplane was registered to and operated by the pilot under the provisions of 14 Code of Federal Regulations Part 91 without a flight plan. Day visual meteorological conditions prevailed for the local area flight that departed at 1900 from the pilot's private airstrip near Sidney, Illinois. The pilot reported that during cruise flight, about 1,200 feet mean sea level, the engine experienced a sudden and total loss of engine power. He was unsuccessful in reestablishing engine power and selected a nearby soybean field for a forced landing. The pilot stated that as he maneuvered the airplane toward the selected field, the setting sun temporarily obstructed his forward visibility and the airplane collided with power lines. He reported that following the collision with the power lines, the airplane entered an aerodynamic stall and impacted terrain with the left wing down. The airplane spun 180 degrees before coming to a stop in an upright attitude. The pilot and passenger unbuckled their seat restraints and exited the airplane uninjured. A postaccident examination of the airplane and its engine was performed by an aviation mechanic. The single fuel tank contained fuel and no anomalies were noted with its vented fuel cap. The engine produced suction/compression at each cylinder in conjunction with crankshaft rotation. Inspection of the spark plugs revealed features consistent with normal engine operation. Mechanical continuity was established between the cockpit engine controls and their respective engine components. An operational test run of the engine established the engine was capable of producing power. Following the operational test run, the intake and exhaust manifolds were removed to examine the pistons. The forward cylinder piston exhibited scoring and a lack of proper oil lubrication adjacent to the intake and exhaust ports. The rear cylinder piston did not exhibit scoring; however, evidence of oil starvation was observed. Further examination of the oil system revealed that the mechanical oil pump had seized within its housing. Additionally, the oil pump nylon drive-coupling had fractured. The oil pump was a non-serviceable component that prevented further disassembly. The pilot reported that the engine was not originally manufactured with an oil pump and that he had it modified with the oil pump about 50 hours before the accident.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 6/20/2014
Event Day of the Week Friday
Time of Event 1935
Event Time Zone Central Daylight Time
Event City St. Joesph
Event State ILLINOIS
Event Country --
Zipcode of the event site 61873
Event Date Year 2014
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 400445N
Event Location Longitude 0880326W
Event Location Airport N/A
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 Weather Observation Facility
Time of the weather observation 1953 Central Daylight Time
Direction of event from weather observation facility (degrees) 256
Weather Observation Facility ID CMI
Elevation of weather observation facility 755
Distance of event from weather observation facility (units?) 12
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 5000
Sky/Lowest/Cloud Conditions Few
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) 26
Dew Point at event time (in degress fahrenheit) 22
Wind Direction (degrees magnetic) 320
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) 29.95
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report METAR KCMI 210053Z 32004KT 10SM FEW050 26/22 A2995
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) --
NTSB Notification Source Central Region Duty Officer -
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Aug 13 2014 11:55AM
User who most recently changed record foxt
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N441MS
NTSB Number CEN14LA309
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 SCHUMACHER
Aircraft Model CHALLENGER II
Aircraft Series Identifier --
Aircraft Serial Number CH2-1200-CW-2039
Certified Max Gross Weight 950
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? Yes
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 Conditional
Date of Last Inspection May 2 2014 12:00AM
Airframe hours since last inspection --
Airframe Hours 430
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type C91-A
Aircraft Owner Name Michael Schumacher
Aircraft Owner Street Address --
Aircraft Owner City Sidney
Aircraft Owner State IL
Aircraft Owner Country USA
Aircraft Owner Zipcode 61877
Operator is an individual? Yes
Operator Name Michael Schumacher
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City Sidney
Operator State IL
Operator Country USA
Operator Zip code 61877
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 PVT
Departure City Sidney
Departure State IL
Departure Country USA
Departure Time 1900
Departure Time Zone CDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code PVT
Destination City Sidney
Destination State IL
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Aug 13 2014 11:55AM
User who most recently changed record foxt
Since inspection or accident Time of Accident
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --