Mark Anton Airport
Aircraft Accident/Incident Report

Dayton, Tennessee 37321
Thursday, February 24, 1983 7:00 EST

NTSB Narrative Summary Released at Completion of Accident

THE CESSNA 421 COLLIDED WITH TREES DURING THE LANDING APPROACH WHILE ON A CORPORATE FLIGHT. THE WEATHER WAS IMC AT THE ACCIDENT SITE AND THE ACFT WAS ON AN IFR FLIGHT PLAN. THE ACFT WAS SUBSTANTIALLY DAMAGED BUT THE PILOT WAS NOT INJURED. THE ACFT CONTACTED TREES 5 MILES NORTH OF THE AIRPORT. THE ACCIDENT OCCURRED DURING AN RNAV APPROACH TO RUNWAY 21 AT MARK ANTON FIELD, DAYTON, TN. THE PILOT STATED THAT AT WHAT HE THOUGHT TO BE THE FINAL APPROACH FIX A DESCENT WAS BEGUN FROM 2300 FT TO 1520 FT. AT 2000 FT COLLISION WITH TREES OCCURRED, (ON THE 170 DEGREE RADIAL 12 NM FROM THE HINCH MOUNTAIN VOR). A MISSED APPROACH WAS EXECUTED AND THE ACFT WAS FLOWN TO KNOXVILLE. NO MALFUNCTIONS WERE FOUND IN THE RNAV SYSTEM. THE PILOT SAID HE COULD HAVE 'MISSED KEYING IN' THE APPROPRIATE WAYPOINT.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 2/24/1983
Event Day of the Week Thursday
Time of Event 700
Event Time Zone Eastern Standard Time
Event City DAYTON
Event State TENNESSEE
Event Country --
Zipcode of the event site 37321
Event Date Year 1983
Event Date Month 2
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport MARK ANTON
Event Location Nearest Airport ID 2A0
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport 350
Airport Elevation 717
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 647 Eastern Standard Time
Direction of event from weather observation facility (degrees) 207
Weather Observation Facility ID CHA
Elevation of weather observation facility 682
Distance of event from weather observation facility (units?) 30
Time Zone of the weather observation EST
Lighting Conditions Day
Lowest Ceiling Height 1600
Lowest Non-Ceiling Height 1600
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) 7
Wind Direction (degrees magnetic) 190
Variable Wind Indicator Unknown
Wind Speed (knots) 5
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 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 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 166
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 20326
Date of most recent change to record Jan 2 2001 9:15AM
User who most recently changed record dbo
Basic weather conditions Instrument Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N123SM
NTSB Number ATL83LA120
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name CESSNA
Aircraft Model 421
Aircraft Series Identifier 421
Aircraft Serial Number 421-0193
Certified Max Gross Weight 6800
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 7
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection Oct 20 1982 12:00AM
Airframe hours since last inspection 86
Airframe Hours 4065
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name ROBINSON MANUFACTURING CO./INC
Aircraft Owner Street Address P.O. BOX 338
Aircraft Owner City DAYTON
Aircraft Owner State TN
Aircraft Owner Country
Aircraft Owner Zipcode 37321
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) Executive/Corporate
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code TYS
Departure City KNOXVILLE
Departure State TN
Departure Country
Departure Time 635
Departure Time Zone EST
Destination Same as Local Flt crash at destination city
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Approach
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 21
Runway Length 4500
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --