Aircraft Accident/Incident Report

Zeigler, Illinois 62999
Thursday, April 21, 1988 8:45 CDT

NTSB Narrative Summary Released at Completion of Accident

UPON COMPLETION OF A PRACTICE EMERGENCY LANDING PROCEDURE DURING AN INSTRUCTIONAL FLIGHT, THE ENGINE STARTED TO RUN ROUGH AND THEN QUIT. THE INSTRUCTOR WAS ABLE TO REGAIN PARTIAL POWER, AND MADE FORCED LANDING IN FRESHLY PLOWED FIELD. THE AIRCRAFT NOSED OVER JUST BEFORE IT CAME TO A COMPLETE STOP. THE ENGINE WAS TEST RUN ON THE AIRFRAME, AND RAN VERY ROUGH. DIFFERENTIAL COMPRESSION CHECK WAS PERFORMED WITH LOW COMPRESSION ON CYLINDERS #2 AND #4. FURTHER INVESTIGATION REVEALED THAT THE #2 AND #4 EXHAUST VALVES WERE BINDING WHEN THE VALVES WERE APPROXIMATELY 0.25 INCHES FROM THE SEAT. THE VALVE STEMS WERE EXAMINED AND FOUND TO HAVE A CARBON-LIKE DEPOSIT SURROUNDING THE STEM FROM THE VALVE FACE TO THE AREA ON THE STEM WHERE IT ENTERS THE VALVE GUIDE.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 4/21/1988
Event Day of the Week Thursday
Time of Event 845
Event Time Zone Central Daylight Time
Event City ZEIGLER
Event State ILLINOIS
Event Country --
Zipcode of the event site 62999
Event Date Year 1988
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport
Event Location Nearest Airport ID NONE
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 0
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 945 Central Daylight Time
Direction of event from weather observation facility (degrees) 225
Weather Observation Facility ID MDH
Elevation of weather observation facility 450
Distance of event from weather observation facility (units?) 20
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 25000
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 7
Air Temperature at event time (in degrees celsius) 18
Dew Point at event time (in degress fahrenheit) 7
Wind Direction (degrees magnetic) 140
Variable Wind Indicator Unknown
Wind Speed (knots) 6
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 None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1481
NTSB Notification Source --
NTSB Notification Date Apr 21 1988 12:00AM
NTSB Notification Time 1300
Fiche Number and/or location -used to find docket information 37606
Date of most recent change to record Dec 13 2000 11:40AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N9410U
NTSB Number CHI88LA099
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 CESSNA
Aircraft Model 150M
Aircraft Series Identifier 150M
Aircraft Serial Number 15078358
Certified Max Gross Weight 1600
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 Annual
Date of Last Inspection Apr 4 1988 12:00AM
Airframe hours since last inspection 29
Airframe Hours 4866
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name AIR INSTITUTE AND SERVICE
Aircraft Owner Street Address CARBONDALE AIRPORT
Aircraft Owner City CARBONDALE
Aircraft Owner State IL
Aircraft Owner Country
Aircraft Owner Zipcode 62901
Operator is an individual? --
Operator Name SOUTHERN ILLINOIS UNIVERSITY
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address SOUTHERN ILLINOIS AIRPORT
Operator City CARBONDALE
Operator State IL
Operator Country
Operator Zip code 62901
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) Instructional
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code MDH
Departure City CARBONDALE
Departure State IL
Departure Country
Departure Time 800
Departure Time Zone CDT
Destination Same as Local Flt crash at destination city
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:30AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length 0
Runway Width 0
Sight Seeing flight No
Air Medical Flight No
Medical Flight --