Dupage County Airport
Aircraft Accident/Incident Report

West Chicago, Illinois 60185
Saturday, September 21, 1991 9:09 CDT

NTSB Narrative Summary Released at Completion of Accident

THE PILOT RENTED N65729 FROM AN FBO FOR A LOCAL FLIGHT. WITNESSES STATED THAT SHORTLY AFTER TAKEOFF FROM RUNWAY 15, THEY SAW THE AIRPLANE TRAILING 'LIGHT GRAY SMOKE' AND HEARD THE ENGINE LOSE POWER. THE WITNESSES SAW THE AIRPLANE IN A STEEP LEFT BANK TURN AT AN ALTITUDE OF BETWEEN 300 AND 500 FEET AGL. THE AIRPLANE THEN DESCENDED IN A NOSE LOW ALTITUDE INTO THE PARKING LOT OF AN INDUSTRIAL PLANT. POST ACCIDENT EXAMINATION OF THE ENGINE REVEALED THE TWO PIECE CARBURETOR PRIMARY VENTURI HAD SEPARATED FROM ITS NORMAL MOUNTED POSITION AND WAS INGESTED INTO THE NO. 2 CYLINDER. SEVERAL SERVICE BULLETINS HAD BEEN ISSUED BY THE MANUFACTURER ADDRESSING THE INSTALLATION OF A NEW ONE PIECE VENTURI. PRECISION AIRMOTIVE ISSUED SERVICE BULLETIN MSA 2 ON OCT. 15 90. REVIEW OF THE ENGINE LOGBOOK FOR N65729 REVEALED SERVICE BULLETIN MSA 2 HAD NOT BEEN ACCOMPLISHED.

NTSB Probable Cause Narrative

THE PILOT'S IMPROPER IN-FLIGHT DECISION TO RETURN TO THE AIRPORT FOLLOWING A LOSS OF ENGINE POWER AT A LOW ALTITUDE. THE PILOT FAILED TO MAINTAIN AIRSPEED WHICH RESULTED IN AN INADVERTENT STALL AT AN ALTITUDE INSUFFICIENT FOR RECOVERY. FACTORS CONTRIBUTING TO THE ACCIDENT WERE THE LOSS OF ENGINE POWER DUE TO THE FAILURE OF THE CARBURETOR VENTURI, THE OPERATOR'S DISREGARD OF THE PRECISION AIRMOTIVE SERVICE BULLETIN.

Event Information

Type of Event Accident
Event Date 9/21/1991
Event Day of the Week Saturday
Time of Event 909
Event Time Zone Central Daylight Time
Event City WEST CHICAGO
Event State ILLINOIS
Event Country --
Zipcode of the event site 60185
Event Date Year 1991
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport DUPAGE COUNTY
Event Location Nearest Airport ID DPA
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 1
Degrees magnetic from airport 90
Airport Elevation 757
Weather Briefing Completeness Unknown
Investigator's weather source Witness
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
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) 8
Dew Point at event time (in degress fahrenheit) 4
Wind Direction (degrees magnetic) 180
Variable Wind Indicator Unknown
Wind Speed (knots) 10
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal 2
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 2206
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 45397
Date of most recent change to record Dec 12 2000 10:45AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N65729
NTSB Number NYC91FA246
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed VFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name CESSNA
Aircraft Model 172P
Aircraft Series Identifier 172P
Aircraft Serial Number 17275839
Certified Max Gross Weight 2400
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 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jul 25 1991 12:00AM
Airframe hours since last inspection 94
Airframe Hours 3686
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name QUENTON GOBLISH
Aircraft Owner Street Address 1091 FLORIMOND
Aircraft Owner City ELGIN
Aircraft Owner State IL
Aircraft Owner Country
Aircraft Owner Zipcode 60185
Operator is an individual? --
Operator Name DUPAGE AIRPORT AUTHORITY
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address DUPAGE COUNTY AIRPORT
Operator City WEST CHICAGO
Operator State IL
Operator Country
Operator Zip code 60185
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 Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 907
Departure Time Zone CDT
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 Descent
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:35AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --