Chambers County-Winnie Stowell Airport
Aircraft Accident/Incident Report

Winnie, Texas 77665
Wednesday, May 8, 2013 19:30 CDT

NTSB Narrative Summary Released at Completion of Accident

The pilot stated that, on previous flights, he noticed that the cockpit fuel quantity gauge indicated greater fuel consumption from the left fuel tank than the right fuel tank. However, during the accident flight, the fuel quantity gauge indicated greater fuel consumption from the right fuel tank than the left fuel tank. The airplane was not equipped with a fuel tank selector switch. Due to his concern about the fuel quantity imbalance, the pilot decided to land at an alternate airport. However, the engine experienced a total loss of power while the pilot was banking the airplane for landing, so he chose to land the airplane on a rough field. The airplane's left wing struck the ground, and the left main landing gear broke off. Postaccident examination of the airplane found no usable fuel in the right wing fuel tank and about 22.9 gallons of fuel in the left wing fuel tank. No contamination was found within the fuel supply. The airplane manufacturer issued Service Letters Nos. 178 and 178A in 1999 and reissued them in 2002, 2004, and 2009, to advise operators that a fuel imbalance could occur and lead to fuel starvation. A warning placard was never incorporated on AT-302 airplanes, only on later models, and no warning about this issue was added to the AT-302 flight manual.

NTSB Probable Cause Narrative

The improper decision by the pilot to attempt a flight with a known fuel system-related maintenance discrepancy, which resulted in a fuel imbalance and subsequent fuel starvation during an approach to an alternate airport with a rough field. Contributing to the accident were the manufacturer's failure to incorporate a warning on AT-302 airplanes and to add a warning about this issue in the AT-302 flight manual.

Event Information

Type of Event Accident
Event Date 5/8/2013
Event Day of the Week Wednesday
Time of Event 1930
Event Time Zone Central Daylight Time
Event City Winnie
Event State TEXAS
Event Country --
Zipcode of the event site 77665
Event Date Year 2013
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 294908N
Event Location Longitude 0942552W
Event Location Airport Chambers County-Winnie Stowell
Event Location Nearest Airport ID T90
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 350
Airport Elevation 25
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1850 Central Daylight Time
Direction of event from weather observation facility (degrees) 270
Weather Observation Facility ID EFD
Elevation of weather observation facility 33
Distance of event from weather observation facility (units?) 28
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 4000
Sky/Lowest/Cloud Conditions Few
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) --
Dew Point at event time (in degress fahrenheit) 16
Wind Direction (degrees magnetic) 150
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 10
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 32245
NTSB Notification Source FAA
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Nov 18 2013 4:45PM
User who most recently changed record galm
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N3650B
NTSB Number CEN13LA283
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name AIR TRACTOR INC
Aircraft Model AT-302
Aircraft Series Identifier --
Aircraft Serial Number 302-0223
Certified Max Gross Weight --
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 1
Number of Engines --
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours 2789
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name Airborn AG Services
Aircraft Owner Street Address --
Aircraft Owner City Chiefland
Aircraft Owner State FL
Aircraft Owner Country USA
Aircraft Owner Zipcode --
Operator is an individual? No
Operator Name Airborn AG Services
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City Chiefland
Operator State FL
Operator Country USA
Operator Zip code --
Operator Code --
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? --
Certified for Part 133 or 137 Operation --
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) Business
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code ASD
Departure City Slidell
Departure State LA
Departure Country USA
Departure Time 1830
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code --
Destination City Anahuac
Destination State TX
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Nov 18 2013 4:45PM
User who most recently changed record galm
Since inspection or accident Time of Accident
Event Location Runway Number and Location 17
Runway Length 3600
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --