Baxter County Airport
Aircraft Accident/Incident Report

Mountain Home, Arkansas 72653
Friday, June 28, 1991 10:50 CDT

NTSB Narrative Summary Released at Completion of Accident

THE PILOT EXPERIENCED A POWER LOSS SHORTLY AFTER TAKEOFF AND SUBSEQUENTLY EXECUTED A FORCED LANDING IN TREES. THERE WERE NO OTHER SUITABLE FORCED LANDING AREAS. THE OCCUPANTS COULD NOT OPEN THE SLIDING CANOPY AND HAD TO EXIT THROUGH THE WINDSHIELD. THE AIRCRAFT WAS THEN DESTROYED BY A POST CRASH FIRE. NEITHER THE PILOT NOR THE PASSENGERS COULD SAY WHETHER OR NOT THE ENGINE HAD COMPLETELY QUIT. INVESTIGATION REVEALED CONTAMINATION IN THE FORM OF GRIT AND LINT THROUGHOUT THE FUEL DELIVERY SYSTEM. IN ADDITION, IT WAS DETERMINED THAT THE FOREIGN MATERIAL HAD BLOCKED THE VAPOR RETURN ORIFICE IN THE CARBURETOR. THE SOURCE OF THE CONTAMINATION WAS NOT DETERMINED; HOWEVER, IT WAS NOT GENERIC TO THE CARBURETOR OR FUEL SYSTEM. IT WAS ALSO DETERMINED THAT THE AIRPLANE WAS BEING OPERATED WITH EXCESSIVE MAGNETO DROP ON BOTH MAGNETOS.

NTSB Probable Cause Narrative

THE CONTAMINATION OF THE AIRPLANE'S FUEL SYSTEM AND THE FOREIGN OBJECT BLOCKAGE OF THE VAPOR RETURN ORIFICE WHICH INDUCED THE POWER LOSS. A FACTOR WAS THE LACK OF SUITABLE TERRAIN.

Event Information

Type of Event Accident
Event Date 6/28/1991
Event Day of the Week Friday
Time of Event 1050
Event Time Zone Central Daylight Time
Event City MOUNTAIN HOME
Event State ARKANSAS
Event Country --
Zipcode of the event site 72653
Event Date Year 1991
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport BAXTER COUNTY
Event Location Nearest Airport ID 2M9
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 1
Degrees magnetic from airport 230
Airport Elevation 919
Weather Briefing Completeness Not pertinent
Investigator's weather source Witness
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 2300
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 11
Air Temperature at event time (in degrees celsius) 26
Dew Point at event time (in degress fahrenheit) 20
Wind Direction (degrees magnetic) 150
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) 30
Density Altitude (feet) 2085
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None --
Injury Total Serious 3
Injury Total All 3
Investigating Agency NTSB
NTSB Docket Number (internal use) 2171
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 45062
Date of most recent change to record Dec 12 2000 10:19AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N91108
NTSB Number FTW91FA109
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed VFR
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name NORTH AMERICAN
Aircraft Model NA1
Aircraft Series Identifier NA1
Aircraft Serial Number NAV4-11
Certified Max Gross Weight 2850
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 4
Number of Engines 1
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection May 1 1991 12:00AM
Airframe hours since last inspection 40
Airframe Hours 1823
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name DIANE H. MULLINS
Aircraft Owner Street Address 1200 SYCAMORE
Aircraft Owner City BANDERA
Aircraft Owner State TX
Aircraft Owner Country
Aircraft Owner Zipcode 78002
Operator is an individual? --
Operator Name DIANE H. MULLINS
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 1200 SYCAMORE
Operator City BANDERA
Operator State TX
Operator Country
Operator Zip code 78002
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) Personal
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 1048
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code HSV
Destination City HUNTSVILLE
Destination State AL
Destination Country
Specific Phase of Flight Takeoff
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 23
Runway Length 4510
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --