Aircraft Accident/Incident Report

Markham, Illinois 60426
Saturday, May 2, 1992 14:40 CDT

NTSB Narrative Summary Released at Completion of Accident

THE LIGHT SINGLE-ENGINED AIRPLANE HAD DESCENDED TO A NEW ALTITUDE. THE PILOT ADVANCED THE THROTTLE WITH THE INTENT OF OBTAINING CRUISE POWER. THE ENGINE DID NOT RESPOND TO THE POWER APPLICATION. IT REMAINED AT THE PREVIOUSLY SET IDLE RPM AND BEGAN GRADUALLY LOOSING THE RPM. THE PILOT CHOSE A FLAT AREA ADJACENT TO A POND FOR THE FORCED LANDING. THE PILOT STATED HE DID NOT TOUCH DOWN ON THE FLAT AREA BECAUSE THE AIRPLANE'S AIRSPEED WAS TOO FAST. THE AIRPLANE TOUCHED DOWN ON THE RIDGE THAT WAS AT THE END OF THE FLAT AREA AND WAS SUBSTANTIALLY DAMAGED. AN ON SCENE INVESTIGATION REVEALED THE THROTTLE ROD END BEARING WAS NOT ATTACHED TO THE THROTTLE RACKET. THE ATTACHING BOLT WAS MISSING. BOTH COMPONENTS WERE COMPLETELY SEPARATEED RATHER THAN ATTACHED.

NTSB Probable Cause Narrative

THE RESULT OF AN INADEQUATE ANNUAL INSPECTION BY OTHER MAINTENANCE PERSONNEL AND, AS A RESULT, A TOTAL FAILURE OF THE THROTTLE LINKAGE. A FACTOR WAS THE PILOT OVERSHOT HIS INTENDED EMERGENCY LANDING AREA, DUE TO EXCESSIVE SPEED.

Event Information

Type of Event Accident
Event Date 5/2/1992
Event Day of the Week Saturday
Time of Event 1440
Event Time Zone Central Daylight Time
Event City MARKHAM
Event State ILLINOIS
Event Country --
Zipcode of the event site 60426
Event Date Year 1992
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport
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 0
Degrees magnetic from airport 0
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1445 Central Daylight Time
Direction of event from weather observation facility (degrees) 360
Weather Observation Facility ID MDW
Elevation of weather observation facility 619
Distance of event from weather observation facility (units?) 11
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 10000
Lowest Non-Ceiling Height 10000
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 20
Air Temperature at event time (in degrees celsius) 22
Dew Point at event time (in degress fahrenheit) 5
Wind Direction (degrees magnetic) 290
Variable Wind Indicator Unknown
Wind Speed (knots) 15
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
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 Minor
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
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) 2354
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 47066
Date of most recent change to record Dec 11 2000 2:55PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N1814T
NTSB Number CHI92LA139
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 PIPER
Aircraft Model PA-28-140D
Aircraft Series Identifier PA-28-140D
Aircraft Serial Number 28-7125166
Certified Max Gross Weight 2150
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 Feb 6 1992 12:00AM
Airframe hours since last inspection 25
Airframe Hours 6376
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name JAN J. TOOF/JOHN FLANNERY
Aircraft Owner Street Address 5454 SOUTH SHORE DR.
Aircraft Owner City CHICAGO
Aircraft Owner State IL
Aircraft Owner Country
Aircraft Owner Zipcode 60615
Operator is an individual? --
Operator Name JAN J. TOOF/JOHN FLANNERY
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 5454 SOUTH SHORE DR.
Operator City CHICAGO
Operator State IL
Operator Country
Operator Zip code 60615
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 No
Departure Airport Code 50I
Departure City KENTLAND
Departure State IN
Departure Country
Departure Time 1355
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code MDW
Destination City CHICAGO
Destination State IL
Destination Country
Specific Phase of Flight Cruise
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 --