Aircraft Accident/Incident Report

Mascoutah, Illinois 62258
Sunday, October 22, 1989 15:53 CDT

NTSB Narrative Summary Released at Completion of Accident

THE PLT RPRTD THAT DRG FLT, A SEVERE ENG VIBRATION DEVELOPED, SO HE ELECTED TO MAKE AN EMERGENCY LANDING. HE SELECTED WHAT HE BELIEVED WAS THE BEST FIELD; HOWEVER, DRG THE LANDING, THE ACFT ENCOUNTERED SOFT/UNEVEN TERRAIN & NOSED OVER. AN INSPECTION OF THE ENG FAILED TO REVEAL THE EXACT NATURE OF THE PROBLEM. THE ONLY ENG PROBLEM, THAT WAS VERIFIED, WAS LOW COMPRESSION IN THE #4 CYLINDER.

NTSB Probable Cause Narrative

AN UNDETERMINED POWERPLANT PROBLEM, WHICH RESULTED IN A SEVERE VIBRATION. THE SOFT/UNEVEN TERRAIN WAS CONSIDERED TO BE A CONTRIBUTING FACTOR.

Event Information

Type of Event Accident
Event Date 10/22/1989
Event Day of the Week Sunday
Time of Event 1553
Event Time Zone Central Daylight Time
Event City MASCOUTAH
Event State ILLINOIS
Event Country --
Zipcode of the event site 62258
Event Date Year 1989
Event Date Month 10
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 0
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1555 Central Daylight Time
Direction of event from weather observation facility (degrees) 300
Weather Observation Facility ID BLV
Elevation of weather observation facility 453
Distance of event from weather observation facility (units?) 4
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 25000
Lowest Non-Ceiling Height 15000
Sky/Lowest/Cloud Conditions Scattered
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) 21
Dew Point at event time (in degress fahrenheit) 12
Wind Direction (degrees magnetic) 150
Variable Wind Indicator Unknown
Wind Speed (knots) 10
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
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 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) 1094
NTSB Notification Source --
NTSB Notification Date Oct 22 1989 12:00AM
NTSB Notification Time 1700
Fiche Number and/or location -used to find docket information 39371
Date of most recent change to record Dec 13 2000 1:08PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N100MH
NTSB Number CHI90LA017
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 DE HAVILLAND
Aircraft Model DH82A
Aircraft Series Identifier DH82A
Aircraft Serial Number A17-122
Certified Max Gross Weight 1825
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 Jul 18 1989 12:00AM
Airframe hours since last inspection 15
Airframe Hours --
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name ROLAND A. SHEPARD
Aircraft Owner Street Address RT. 2 BOX 2105
Aircraft Owner City BRUNSWOCK
Aircraft Owner State ME
Aircraft Owner Country
Aircraft Owner Zipcode 04011
Operator is an individual? --
Operator Name
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address
Operator City
Operator State
Operator Country
Operator Zip code
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 MO49
Departure City WASHINGTON
Departure State MO
Departure Country
Departure Time 1450
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code CULL
Destination City CARMI
Destination State IL
Destination Country
Specific Phase of Flight Landing
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 0
Runway Width 0
Sight Seeing flight No
Air Medical Flight No
Medical Flight --