Aircraft Accident/Incident Report

Ansonia, Ohio 45303
Thursday, January 18, 1990 5:51 EST

NTSB Narrative Summary Released at Completion of Accident

AT 0515 EST, THE FLT WAS CLRD FOR TAKEOFF ON A FLT FM YPLISANTA, MI TO LOUISVILLE, KY. ABT 17 MIN LATER, THE FLT CREW BGN TO DISPLAY INDCNS OF A DETERIORATION OF THEIR ABILITY TO CTL THE ACFT. AT 1ST, THEY DEVIATED FM INSTRNS TO HOLD WEST OF THE FINDLAY VOR AT FL220. AS THE FLT CONTD & WAS CLRD TO FL270, THE CREW DISPLAYED CONFUSION ABT MAG HDGS & BASIC INSTRNS. AT 1048 EST, THE ACFT DEVIATED FM THE EN ROUTE HDG & THE WRONG HDG WAS READ BACK AFTER A HDG CORRECTION WAS GIVEN. ALSO, THE ACFT CONTD CLIMBING (TO FL291), THEN RADAR & RADIO CTC WERE LOST AT 0551 EST. THE CTLR NOTED THE PLT'S SPEECH WAS SLURRED & SOME PORTIONS OF THE CONVERSATION WERE UNINTELLIGIBLE. SUBSEQUENTLY, THE ACFT CRASHED IN A STEEP DIVE. NO PREIMPACT PART FAILURE WAS VERIFIED, THOUGH IMPACT FORCES & POST-CRASH FIRE RESULTED IN EXTSV DMG OF THE ACFT. THE ACFT WAS EQUIPPED WITH OXYGEN & PRESSURIZATION SYS. NO AUDIBLE WARNING WAS NOTED ON ATC RECORDINGS TO INDC THE CABIN ALT HAD EXCEEDED 10,000', THOUGH THE ACFT WAS EQUIPPED WITH SUCH A DEVICE.

NTSB Probable Cause Narrative

THE FLIGHT CREW BECAME INCAPACITATED FOR UNDETERMINED REASONS AND LOST CONTROL OF THE AIRPLANE.

Event Information

Type of Event Accident
Event Date 1/18/1990
Event Day of the Week Thursday
Time of Event 551
Event Time Zone Eastern Standard Time
Event City ANSONIA
Event State OHIO
Event Country --
Zipcode of the event site 45303
Event Date Year 1990
Event Date Month 1
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 600 Eastern Standard Time
Direction of event from weather observation facility (degrees) 120
Weather Observation Facility ID DAY
Elevation of weather observation facility 1009
Distance of event from weather observation facility (units?) 42
Time Zone of the weather observation EST
Lighting Conditions Night/Dark
Lowest Ceiling Height 1100
Lowest Non-Ceiling Height 800
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) 5
Air Temperature at event time (in degrees celsius) -18
Dew Point at event time (in degress fahrenheit) -18
Wind Direction (degrees magnetic) 330
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) --
Density Altitude (feet) 0
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) 2158
NTSB Notification Source --
NTSB Notification Date Jan 18 1990 12:00AM
NTSB Notification Time 700
Fiche Number and/or location -used to find docket information 43957
Date of most recent change to record Dec 18 2002 11:28AM
User who most recently changed record NTSB\GIUV
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N331DP
NTSB Number ATL90MA051
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire Ground
Aircraft Explosion Ground
Aircraft Manufacturer's Full Name LEARJET
Aircraft Model 23
Aircraft Series Identifier 23
Aircraft Serial Number 067
Certified Max Gross Weight 12500
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 3
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection --
Airframe hours since last inspection 0
Airframe Hours --
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name
Aircraft Owner Street Address
Aircraft Owner City
Aircraft Owner State
Aircraft Owner Country
Aircraft Owner Zipcode
Operator is an individual? --
Operator Name AERO SMITH LEASING
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address WILLOW RUN AIRPORT
Operator City YPSILANTI
Operator State MI
Operator Country
Operator Zip code 48198
Operator Code
Owner has at least one certificate Yes - certificate holder
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) Unknown
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code YIP
Departure City YPLISANTA
Departure State MI
Departure Country
Departure Time 520
Departure Time Zone EST
Destination Same as Local Flt --
Destination Airport Code SDF
Destination City LOUISVILLE
Destination State KY
Destination Country
Specific Phase of Flight Descent
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 --