20101021050599A

Accident · Substantial damage

FAA accident report · Air Tractor AT-802 · Fort Hunter Lig, CA · October 21, 2010

Date
October 21, 2010 · 16:00 local
Place
Fort Hunter Lig, CA
Airport
Schoonover Landing Strip
Phase of flight
Landing: Touchdown
Operating rules
General operating rules (Part 91)
Damage
Substantial damage
Aircraft
N4247U
NTSB investigation
NTSBWPR11CA023
Reported as
Air Tractor AT-802
Reported engine
Pratt & Whitney Canada PT6A-67F
People aboard
2
Fatal injuries
0
Other injuries
0
Pilot’s certificate
Commercial pilot
Pilot’s flight hours
20,000 total1,200 in this make and model45 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.

Accident aircraft an Air Tractor A-802 N4247U departed Schoonover Landing Strip, fort Hunter liggett at approximately 1600 local time. The purpose of the flight was a demonstration test flight. All segments of the flight were normal except Landing. The pilot stated he was attempting a short field Landing. During the final phase of the Landing with flaps fully extended, the tail wheel of the aircraft struck a 10 to 12 foot high berm at the end of runway 12. This initiated the nose of the aircraft to pitch down causing the main Landing gear and propeller to strike the ground. The aircraft became airborne after impacting the ground. The pilot then attempted a go-around. During that time the left wing stalled. The aircraft returned to the ground in a left wing low attitude, striking the ground causing the aircraft to start veering off the runway. The pilot stated he applied full right rudder in an attempt to maintain control of the aircraft. The aircraft returned to a wings level position but continued veering left off the runway. The next event was the failure of the right main Landing gear and tail wheeel. Both items separated from the aircraft. This caused the aircraft to turn abruptly to the right skidding on the right wing. The aircraft came to rest perpendicular to the runway 12 in a small ditch. Damage was limited to the right wing, right Landing gear, tail wheel, propeller and engine.

As the FAA filed it

ACCIDENT AIRCRAFT AN AIR TRACTOR A-802 N4247U DEPARTED SCHOONOVER LANDING STRIP, FORT HUNTER LIGGETT AT APPROXIMATELY 1600 LOCAL TIME. THE PURPOSE OF THE FLIGHT WAS A DEMONSTRATION TEST FLIGHT. ALL SEGMENTS OF THE FLIGHT WERE NORMAL EXCEPT LANDING. THE PILOT STATED HE WAS ATTEMPTING A SHORT FIELD LANDING. DURING THE FINAL PHASE OF THE LANDING WITH FLAPS FULLY EXTENDED, THE TAIL WHEEL OF THE AIRCRAFT STRUCK A 10 TO 12 FOOT HIGH BERM AT THE END OF RUNWAY 12. THIS INITIATED THE NOSE OF THE AIRCRAFT TO PITCH DOWN CAUSING THE MAIN LANDING GEAR AND PROPELLER TO STRIKE THE GROUND. THE AIRCRAFT BECAME AIRBORNE AFTER IMPACTING THE GROUND. THE PILOT THEN ATTEMPTED A GO-AROUND. DURING THAT TIME THE LEFT WING STALLED. THE AIRCRAFT RETURNED TO THE GROUND IN A LEFT WING LOW ATTITUDE, STRIKING THE GROUND CAUSING THE AIRCRAFT TO START VEERING OFF THE RUNWAY. THE PILOT STATED HE APPLIED FULL RIGHT RUDDER IN AN ATTEMPT TO MAINTAIN CONTROL OF THE AIRCRAFT. THE AIRCRAFT RETURNED TO A WINGS LEVEL POSITION BUT CONTINUED VEERING LEFT OFF THE RUNWAY. THE NEXT EVENT WAS THE FAILURE OF THE RIGHT MAIN LANDING GEAR AND TAIL WHEEEL. BOTH ITEMS SEPARATED FROM THE AIRCRAFT. THIS CAUSED THE AIRCRAFT TO TURN ABRUPTLY TO THE RIGHT SKIDDING ON THE RIGHT WING. THE AIRCRAFT CAME TO REST PERPENDICULAR TO THE RUNWAY 12 IN A SMALL DITCH. DAMAGE WAS LIMITED TO THE RIGHT WING, RIGHT LANDING GEAR, TAIL WHEEL, PROPELLER AND ENGINE.

NTSB investigation

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