Aircraft Accident/Incident Report

Van Horn, Texas 79855
Thursday, September 9, 1999 18:00 CDT

NTSB Narrative Summary Released at Completion of Accident

According to the pilot, who was the new owner of the airplane, the previous owner stated that the auxiliary fuel tank had not been used since he owned the airplane. The pilot filled the auxiliary fuel tank prior to the cross-country flight, sumped the tank twice for sediment and/or water, and found none. During the first two legs of the flight the auxiliary fuel tank appeared to be draining into the main fuel tank; however, during the third leg of the flight, the main fuel tank quantity went down to 1-2 gallons of fuel and the auxiliary fuel tank remained full. The pilot elected to make a precautionary landing in an open area. During the landing roll, the main landing gear impacted a rut and collapsed. A mechanic, who helped recover the airplane, stated that the auxiliary fuel tank had drained into the main fuel tank by the time they recovered the airplane a few days after the accident.

NTSB Probable Cause Narrative

A restriction within the auxiliary fuel supply system and the rough terrain during the subsequent precautionary landing resulting on main gear collapse.

Event Information

Type of Event Accident
Event Date 9/9/1999
Event Day of the Week Thursday
Time of Event 1800
Event Time Zone Central Daylight Time
Event City VAN HORN
Event State TEXAS
Event Country --
Zipcode of the event site 79855
Event Date Year 1999
Event Date Month 9
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 --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1753 Central Daylight Time
Direction of event from weather observation facility (degrees) 120
Weather Observation Facility ID FST
Elevation of weather observation facility 3010
Distance of event from weather observation facility (units?) 30
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
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) 22
Dew Point at event time (in degress fahrenheit) 17
Wind Direction (degrees magnetic) 140
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) 30
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) 1411
NTSB Notification Source --
NTSB Notification Date Sep 13 1999 12:00AM
NTSB Notification Time 730
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Jan 23 2001 9:38AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N9044E
NTSB Number FTW99LA267
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Aeronca
Aircraft Model 11AC
Aircraft Series Identifier 11AC
Aircraft Serial Number 11AC-675
Certified Max Gross Weight 1250
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 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name RONALD W. LAWRENCE
Aircraft Owner Street Address 24163 ROAD 68
Aircraft Owner City TULARE
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 93274
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) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code FST
Departure City FORT STOCKTON
Departure State TX
Departure Country
Departure Time 1610
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code VHN
Destination City VAN HORN
Destination State TX
Destination Country
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 23 2001 11:29AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --