Individually Owned: 151,845
Corporate Owned: 143,699
Private Airport
Aircraft Accident/Incident Report
Wisner, Louisiana 71378
Wednesday, July 18, 2012 11:00 CDT
NTSB Narrative Summary Released at Completion of Accident
The pilot reported that the airplane lifted off of the 2,500-foot long, rough, turf airstrip about 100 feet before the end of the runway. However, the airplane did not climb out of ground effect, and it settled into a bean field. He stated that there were no mechanical issues with the airplane during the accident takeoff. The pilot had reduced the chemical load for the agricultural application flight due to the runway length and ambient temperature, and he had elected to conduct the accident takeoff with the wing flaps extended to about 25 degrees. He reported a gross weight for the accident takeoff of 10,100 lbs. Performance data indicated that a takeoff distance of about 2,600 feet was required to clear a 50-foot obstacle. However, that data was applicable to a hard surface runway at a maximum certificated gross takeoff weight of 8,000 lbs with 10 degrees of flaps. The airplane flight manual did not contain takeoff data for weights or flap settings in excess of 8,000 lbs and 10 degrees, respectively. The airplane manufacturer recommended that takeoffs not be attempted with more than 10 degrees of flap. Regulations and guidance related to agricultural application flights in restricted category airplanes allowed for operations up to 31 percent above the certificated gross takeoff weight. The pilot reported that the maximum gross weight for the airplane was 10,480 lbs, which corresponded to the 31 percent limit. FAA guidance suggested that an increase in takeoff gross weight of 31 percent will increase the required takeoff distance by about 90 percent. The reduced acceleration due to the rough, turf runway and the excess flap deflection selected by the pilot, combined with operating near the maximum permitted takeoff gross weight, resulted in the airplane's inability to attain a positive rate of climb after liftoff.
NTSB Probable Cause Narrative
The pilot’s inadequate takeoff planning that did not consider the reduced acceleration due to a rough, turf runway and his use of an improper flap setting, which resulted in a collision with terrain during takeoff.
Event Information
| Type of Event | Accident |
| Event Date | 7/18/2012 |
| Event Day of the Week | Wednesday |
| Time of Event | 1100 |
| Event Time Zone | Central Daylight Time |
| Event City | Wisner |
| Event State | LOUISIANA |
| Event Country | -- |
| Zipcode of the event site | 71378 |
| Event Date Year | 2012 |
| Event Date Month | 7 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 315646N |
| Event Location Longitude | 0913346W |
| Event Location Airport | Private |
| Event Location Nearest Airport ID | PVT |
| 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 | -- |
| Airport Elevation | 60 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1055 Central Daylight Time |
| Direction of event from weather observation facility (degrees) | 145 |
| Weather Observation Facility ID | HEZ |
| Elevation of weather observation facility | 272 |
| Distance of event from weather observation facility (units?) | 22 |
| Time Zone of the weather observation | CDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | 2400 |
| 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) | 30 |
| Dew Point at event time (in degress fahrenheit) | 22 |
| Wind Direction (degrees magnetic) | -- |
| Variable Wind Indicator | -- |
| Wind Speed (knots) | -- |
| Wind Velocity Indicator | Calm |
| Wind Gust Indicator | -- |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.07 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | -- |
| Event Highest Injury | Serious |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | 1 |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 30254 |
| NTSB Notification Source | FAA-BTR FSDO |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Sep 26 2012 7:47PM |
| User who most recently changed record | snyg |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N205SK |
| NTSB Number | CEN12LA459 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 137: Agricultural |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | -- |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | AIR TRACTOR INC |
| Aircraft Model | AT-502B |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 502B-0628 |
| 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 | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | 100 Hour |
| Date of Last Inspection | Jul 2 2012 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | 6658 |
| ELT Installed | No |
| ELT Activated | Unknown |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | Delta Dusters LLC |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | Newellton |
| Aircraft Owner State | LA |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 71357-0177 |
| Operator is an individual? | No |
| Operator Name | Delta Dusters LLC |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | -- |
| Operator City | Newellton |
| Operator State | LA |
| Operator Country | USA |
| Operator Zip code | 71357-0177 |
| Operator Code | -- |
| Owner has at least one certificate | Yes - certificate holder |
| Other Operator of large aircraft? | No |
| Certified for Part 133 or 137 Operation | Agriculture |
| 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) | Aerial Application |
| Second Pilot on Board | No |
| Departure Point Same as Event | Yes |
| Departure Airport Code | PVT |
| Departure City | Wisner |
| Departure State | LA |
| Departure Country | USA |
| Departure Time | 1100 |
| Departure Time Zone | CDT |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | PVT |
| Destination City | Wisner |
| Destination State | LA |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jul 30 2012 12:54PM |
| User who most recently changed record | sort |
| Since inspection or accident | Last Inspection |
| Event Location Runway Number and Location | 09 |
| Runway Length | 2300 |
| Runway Width | 75 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |