Aircraft Accident/Incident Report

Bartlett, Texas 76511
Monday, June 2, 1986 21:42 CDT

NTSB Narrative Summary Released at Completion of Accident

ABOUT 6 MIN AFTER TAKEOFF, AT 2138:31 CDT, THE PLT RPRTD LEVEL AT 9000 FT MSL. AT 2140:17, HE TRANSMITTED THAT HE HAD TROUBLE & SAID HE COULD NOT CONTROL OR DISCONNECT THE AUTOPILOT (A/P) WHICH WAS CAUSING THE ACFT TO DESCEND. AT 2141:14,HE STATED HE WAS DESCENDING AT 6000 FT/MIN. ANOTHER COMPANY PLT IN ANOTHER ACFT ASKED IF HE COULD FIND THE BREAKER, MEANING THE A/P CIRCUIT BREAKER. AT 2141:27, THE PLT OF N8CC REPLIED, 'CALL YOU BACK.' SECONDS LATER, RADIO & RADAR CONTACT WITH N8CC WERE LOST. A SEARCH WAS INITIATED, BUT THE ACFT WAS NOT FND UNTIL THE FOLLOWING MORNING. AN EXAM REVEALED THE ACFT IMPACTED IN A STEEP, NOSE DOWN, INVERTED ATTITUDE WHILE AT HIGH SPEED; MUCH OF THE WRECKAGE WAS BURIED. NO PREIMPACT PART FAILURE/MALFUNCTION WAS FND. WITH THE A/P ENGAGED, BACK PRESSURE ON THE CONTROL COLUMN WOULD HAVE CAUSED THE A/P TO TRIM NOSE DOWN. SUBSEQUENTLY, THE MANUFACTURER ISSUED A PRECAUTIONARY ADVISORY TO ALL MU-2 OWNER/OPERATORS REGARDING PROPER OPERATION OF THE A/P AND THE VARIOUS WAYS IN WHICH IT CAN BE DISENGAGED.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 6/2/1986
Event Day of the Week Monday
Time of Event 2142
Event Time Zone Central Daylight Time
Event City BARTLETT
Event State TEXAS
Event Country --
Zipcode of the event site 76511
Event Date Year 1986
Event Date Month 6
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 4
Degrees magnetic from airport 360
Airport Elevation 0
Weather Briefing Completeness Full
Investigator's weather source Weather Observation Facility
Time of the weather observation 2142 Central Daylight Time
Direction of event from weather observation facility (degrees) 210
Weather Observation Facility ID AUS
Elevation of weather observation facility 632
Distance of event from weather observation facility (units?) 35
Time Zone of the weather observation CDT
Lighting Conditions Night/Dark
Lowest Ceiling Height 3800
Lowest Non-Ceiling Height 3800
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Broken
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) 26
Dew Point at event time (in degress fahrenheit) 24
Wind Direction (degrees magnetic) 110
Variable Wind Indicator Unknown
Wind Speed (knots) 6
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 1
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 1785
NTSB Notification Source --
NTSB Notification Date Jun 2 1986 12:00AM
NTSB Notification Time 2240
Fiche Number and/or location -used to find docket information 32244
Date of most recent change to record Jan 2 2001 9:14AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N8CC
NTSB Number FTW86MA097
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 135: Air Taxi & Commuter
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name MITSUBISHI
Aircraft Model MU-2B-35
Aircraft Series Identifier MU-2B-35
Aircraft Serial Number 569
Certified Max Gross Weight 8930
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 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection May 3 1986 12:00AM
Airframe hours since last inspection 42
Airframe Hours 3293
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name BARRON THOMAS AVIATION, INC.
Aircraft Owner Street Address PO BOX 7293
Aircraft Owner City DALLAS
Aircraft Owner State TX
Aircraft Owner Country
Aircraft Owner Zipcode 75209
Operator is an individual? --
Operator Name MARTINAIRE, INC.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 2850 BURBANK
Operator City DALLAS
Operator State TX
Operator Country
Operator Zip code 75235
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 Non-scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Cargo
Type of Flying (Per_Bus / Primary) Unknown
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code AUS
Departure City AUSTIN
Departure State TX
Departure Country
Departure Time 2130
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code DFW
Destination City D/FW AIRPORT
Destination State TX
Destination Country
Specific Phase of Flight Descent
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:36AM
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 --