20120507007879A

Accident · Substantial damage

FAA accident report · Air Tractor AT-502B · El Campo, TX · May 7, 2012

Date
May 7, 2012 · 14:00 local
Place
El Campo, TX
Airport
Rasmusson Air Strip
Phase of flight
Takeoff: Rotation
Operating rules
Agricultural (Part 137)
Operator
KFYG
Damage
Substantial damage
Aircraft
N5016P
NTSB investigation
NTSBCEN12CA301
Reported as
Air Tractor AT-502B
Reported engine
Pratt & Whitney PT6A series
People aboard
1
Fatal injuries
0
Other injuries
0
Pilot’s certificates
Commercial pilot, flight instructor
Pilot’s flight hours
6,921 total2,945 in this make and model140 in the last 90 days

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

During agricultural operations for the dispersement of fertilizer, the pilot failed to maintain control of the aircraft. While operating out of a packed dirt and grass, farm runway, the pilot encountered stationary farm equipment in his field of vision. This raised the pilot's level of concern for his safety. The pilot elected to take off at a less than desirable Air speed, with regards tor the fertilizer load and temperature of the day. Unable to separate from ground effect and maintain altitude, the aircraft clipped a barb wire and wooden post fence at approximately 4 1/2 feet AGL. The aircraft continued in a direction approximately 30 degrees to the north of the departure end of the runway. Approximately 125 feet further in this same direction the aircraft contacted another fence of the same constructed material. The aircraft was right wing low at this contact point, causing the outboard leading edge to contact the fence and separate from the aircraft. The outboard leading edge skin was present at the base of the fence during this investigation. The aircraft continued across county road (cr) 391. The right wing and/or the right main gear were making contact with the road as the aircraft continued settling to the ground. On the FAR side of CR391, was another fence of the same construction as the first two, a berm, created from a drainage ditch and a wooden structure with heavy corrugated steel. The aircraft left main gear appeared to contact the berm first with enough impact force to spin the aircraft approximately 180 degrees. The tail wheel appeared to contact the ground with considerable force during the rotation of the aircraft causing the empennage and tail section to buckle in front of the vertical fin leading edge. The left wing came in contact with the wooden and steel structure destroying the outer 8-10 feet of the aircraft left wing. Damages, other than those described, were the propeller and landing gear. There was no post crash fire and the pilot was not injured.

As the FAA filed it

DURING AGRICULTURAL OPERATIONS FOR THE DISPERSEMENT OF FERTILIZER, THE PILOT FAILED TO MAINTAIN CONTROL OF THE AIRCRAFT. WHILE OPERATING OUT OF A PACKED DIRT AND GRASS, FARM RUNWAY, THE PILOT ENCOUNTERED STATIONARY FARM EQUIPMENT IN HIS FIELD OF VISION. THIS RAISED THE PILOT'S LEVEL OF CONCERN FOR HIS SAFETY. THE PILOT ELECTED TO TAKE OFF AT A LESS THAN DESIRABLE AIR SPEED, WITH REGARDS TOR THE FERTILIZER LOAD AND TEMPERATURE OF THE DAY. UNABLE TO SEPARATE FROM GROUND EFFECT AND MAINTAIN ALTITUDE, THE AIRCRAFT CLIPPED A BARB WIRE AND WOODEN POST FENCE AT APPROXIMATELY 4 1/2 FEET AGL. THE AIRCRAFT CONTINUED IN A DIRECTION APPROXIMATELY 30 DEGREES TO THE NORTH OF THE DEPARTURE END OF THE RUNWAY. APPROXIMATELY 125 FEET FURTHER IN THIS SAME DIRECTION THE AIRCRAFT CONTACTED ANOTHER FENCE OF THE SAME CONSTRUCTED MATERIAL. THE AIRCRAFT WAS RIGHT WING LOW AT THIS CONTACT POINT, CAUSING THE OUTBOARD LEADING EDGE TO CONTACT THE FENCE AND SEPARATE FROM THE AIRCRAFT. THE OUTBOARD LEADING EDGE SKIN WAS PRESENT AT THE BASE OF THE FENCE DURING THIS INVESTIGATION. THE AIRCRAFT CONTINUED ACROSS COUNTY ROAD (CR) 391. THE RIGHT WING AND/OR THE RIGHT MAIN GEAR WERE MAKING CONTACT WITH THE ROAD AS THE AIRCRAFT CONTINUED SETTLING TO THE GROUND. ON THE FAR SIDE OF CR391, WAS ANOTHER FENCE OF THE SAME CONSTRUCTION AS THE FIRST TWO, A BERM, CREATED FROM A DRAINAGE DITCH AND A WOODEN STRUCTURE WITH HEAVY CORRUGATED STEEL. THE AIRCRAFT LEFT MAIN GEAR APPEARED TO CONTACT THE BERM FIRST WITH ENOUGH IMPACT FORCE TO SPIN THE AIRCRAFT APPROXIMATELY 180 DEGREES. THE TAIL WHEEL APPEARED TO CONTACT THE GROUND WITH CONSIDERABLE FORCE DURING THE ROTATION OF THE AIRCRAFT CAUSING THE EMPENNAGE AND TAIL SECTION TO BUCKLE IN FRONT OF THE VERTICAL FIN LEADING EDGE. THE LEFT WING CAME IN CONTACT WITH THE WOODEN AND STEEL STRUCTURE DESTROYING THE OUTER 8-10 FEET OF THE AIRCRAFT LEFT WING. DAMAGES, OTHER THAN THOSE DESCRIBED, WERE THE PROPELLER AND LANDING GEAR. THERE WAS NO POST CRASH FIRE AND THE PILOT WAS NOT INJURED.

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.