Aircraft Accident/Incident Report

Clinton, North Carolina 28328
Wednesday, November 26, 1986 18:23 EST

NTSB Narrative Summary Released at Completion of Accident

WHILE EN ROUTE ON AN IFR FLT PLAN AT FL180, THE PLT ACKNOWLEDGED INSTRUCTIONS TO DSCND TO 16,000'. LATER, THE RADAR CONTROLLER (CLTR) NOTICED THE ACFT HAD DEVIATE FM COURSE & WAS NOT REPLYING WITH MODE 'C' ALT INFO. THE CTLR REQD ALT INFO & THE PLT RESPONDED, '. . . I'VE LOST AN (AWFUL) LOT OF ALT, I GOT MIXED UP IN HERE & LOST ALT, I'M GOIN' BACK UP . . .' WHEN QUERIED, THE PLT RPRTD HE WAS AT 9000' & ACKNOWLEDGED INSTRUCTIONS TO CLIMB TO 14,000'. SHORTLY THERE- AFTER, THE ACFT ENTERED A SPIRAL, THEN RADIO & RADAR CONTACT WERE LOST. AN IN-FLT BREAK-UP OCCURRED & THE WRECKAGE FELL OVR A WIDESPREAD AREA. AN EXAM REVEALED EVIDENCE THE WINGS & RGT HORIZONTAL STABILIZER HAD FAILED FM OVERLOAD, WITH THE WINGS SEPARATING IN AN UPWARD DRCTN. A WX STUDY INDCD THERE WERE CLD LAYERS FM ABOUT 14,000' TO 20,000' WITH LGT TO MOD MIXED ICING IN CLDS ABV 14,000 FT. ALSO, LGT TO MOD TURBC WAS FORECAST BLO 20,000' & WIDELY SCATTERED, IMBEDDED TSTMS WERE FORECAST IN AN AREA NORTH OF THE ACDNT AREA. WITNESSES RPRTD CLDS & OCNL LIGHTNING TO THE EAST.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 11/26/1986
Event Day of the Week Wednesday
Time of Event 1823
Event Time Zone Eastern Standard Time
Event City CLINTON
Event State NORTH CAROLINA
Event Country --
Zipcode of the event site 28328
Event Date Year 1986
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 Full
Investigator's weather source Weather Observation Facility
Time of the weather observation 1748 Eastern Standard Time
Direction of event from weather observation facility (degrees) 270
Weather Observation Facility ID FAY
Elevation of weather observation facility 190
Distance of event from weather observation facility (units?) 30
Time Zone of the weather observation EST
Lighting Conditions Dusk
Lowest Ceiling Height 15000
Lowest Non-Ceiling Height 5000
Sky/Lowest/Cloud Conditions Thin Broken
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) 23
Dew Point at event time (in degress fahrenheit) -18
Wind Direction (degrees magnetic) 210
Variable Wind Indicator Unknown
Wind Speed (knots) 7
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 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 4
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 4
Investigating Agency NTSB
NTSB Docket Number (internal use) 2503
NTSB Notification Source --
NTSB Notification Date Nov 27 1986 12:00AM
NTSB Notification Time 230
Fiche Number and/or location -used to find docket information 33353
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 N122FP
NTSB Number ATL87FA030
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 None
Aircraft Manufacturer's Full Name Piper
Aircraft Model AEROSTAR 601P
Aircraft Series Identifier AEROSTAR 6
Aircraft Serial Number 61P-0412-147
Certified Max Gross Weight 6500
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 6
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Oct 6 1986 12:00AM
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name WILLIAM K. TYUS
Aircraft Owner Street Address 1085 LAKE DESTINY ROAD
Aircraft Owner City MAITLAND
Aircraft Owner State FL
Aircraft Owner Country
Aircraft Owner Zipcode 32751
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 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) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code EWN
Departure City NEW BERN
Departure State NC
Departure Country
Departure Time 1747
Departure Time Zone EST
Destination Same as Local Flt --
Destination Airport Code TYS
Destination City KNOXVILLE
Destination State TN
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 --