Aircraft Accident/Incident Report

Jefferson, Wisconsin 53549
Monday, November 16, 1987 8:19 CST

NTSB Narrative Summary Released at Completion of Accident

WHILE CRUISING ABV FRZG LVL AT 12,000', THE FLT WAS CLRD TO DSCND & MAINT 9000'. ABT 1-1/2 MIN LTR, THE FLT DECLARED A MAYDAY (EMERGENCY). RADIO & RADAR CTC WERE LOST & THE ACFT CRASHED IN A NR VERTICAL DSCNT. RADAR DATA SHOWED THAT AFTER STARTING A DSCNT, THE ACFT ENTERED A LEFT/DESCENDING MNVR. SUBSEQUENTLY, THE LEFT OUTBOARD WING PANEL & BOTH ENGS SEPD IN FLT. THE LAST TRANSPONDER REPLY WAS AT 2800'. AN EXAM REVEALED THE LEFT WING PANEL HAD SEPD FM POSITIVE OVERLOAD. NO FATIGUE OR PRE-EXISTING CRACK WAS FND ON ANY FRACTURE AREA. ALSO, DMG WAS FND ON THE LEFT ENG'S INBOARD COWLING THAT MATCHED DMG ON THE VERTICAL & RGT HORIZONTAL STABILIZERS; HOWEVER, SEQUENCE OF COWLING SEPN WAS NOT VERIFIED. THE SEPD WING PANEL & PARTS OF THE ENG COWLING WERE FOUND ABOUT 3/4 MI FM THE MAIN WRECKAGE. AN NTSB TRAJECTORY STUDY INDCD AN IN-FLT SEPN OCCURRED AT AN ALT OF APRX 5600' AS ACFT WAS HDG SE IN A 50 TO 70 DEG DIVE. ELEV TRIM INDCR WAS FND WITH A FULL NOSE UP INDCN. BOTH PLTS WERE INSTRUMENT RATED.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 11/16/1987
Event Day of the Week Monday
Time of Event 819
Event Time Zone Central Standard Time
Event City JEFFERSON
Event State WISCONSIN
Event Country --
Zipcode of the event site 53549
Event Date Year 1987
Event Date Month 11
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 753 Central Standard Time
Direction of event from weather observation facility (degrees) 295
Weather Observation Facility ID MSN
Elevation of weather observation facility 862
Distance of event from weather observation facility (units?) 22
Time Zone of the weather observation CST
Lighting Conditions Day
Lowest Ceiling Height 2300
Lowest Non-Ceiling Height 2300
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) 5
Air Temperature at event time (in degrees celsius) 9
Dew Point at event time (in degress fahrenheit) 6
Wind Direction (degrees magnetic) 180
Variable Wind Indicator Unknown
Wind Speed (knots) 14
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 Light
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 8
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 8
Investigating Agency NTSB
NTSB Docket Number (internal use) 2516
NTSB Notification Source --
NTSB Notification Date Nov 16 1987 12:00AM
NTSB Notification Time 905
Fiche Number and/or location -used to find docket information 37173
Date of most recent change to record Dec 13 2000 2:59PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N334DP
NTSB Number CHI88MA026
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 None
Aircraft Explosion None
Aircraft Manufacturer's Full Name BEECH
Aircraft Model 200
Aircraft Series Identifier 200
Aircraft Serial Number BB-1188
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 10
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Continuous Airworthiness
Date of Last Inspection Oct 23 1987 12:00AM
Airframe hours since last inspection 14
Airframe Hours 1050
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name DANPAR AVIATION, INC.
Aircraft Owner Street Address 1209 ORANGE STREET
Aircraft Owner City WILMINGTON
Aircraft Owner State DE
Aircraft Owner Country
Aircraft Owner Zipcode 19801
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) Business
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code CGX
Departure City CHICAGO
Departure State IL
Departure Country
Departure Time 751
Departure Time Zone CST
Destination Same as Local Flt --
Destination Airport Code C85
Destination City BARABOO
Destination State WI
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 --