20080720841709A

Accident · Substantial damage

FAA accident report · Airtrc AT-402B · Deerfield, KS · July 20, 2008

Date
July 20, 2008 · 08:25 local
Place
Deerfield, KS
Phase of flight
Low Level Operations
Operating rules
Agricultural (Part 137)
Operator
RBKG
Damage
Substantial damage
Aircraft
N61318
NTSB investigation
NTSBDEN08LA125
Reported as
Airtrc AT402B
Reported engine
Pratt & Whitney PT6A34AG
Fatal injuries
0
Pilot’s flight hours
2,862 total193 in this make and model235 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.

(-23) On 07-20-08 at approx. 0800 hrs local the aircraft departed lakin airport (36K)on an agricultural spray mission. Prior to departure 375 gal of chemical mix and 40 gal of fuel were added to the aircrat. After fueling it was noted that the left tank contained approx. 1/2 and the right tank was approx. 3/4 full. During the spray operation 2 fields adjacent to each other were sprayed using the reverse race track pattern. For the last pass the pilot climbed over a set of powerlines on the south side of the field and sprayed allowing the chemical to drift under the powerlines. During this operation the pilot slipped the aircraft with the left wing up for the length of the field. Following this pass the pilot executed a 60 degree climbing right turn. During this turn the pilot was not looking at the instruments, but looking at the spray pattern. At approx. 100 ft AGL the pilot attempted to level the aircraft on a west heading, but was unable to. The right wing continued to drop followed by the nose. The pilot attempted to add power to the aircraft, the the engine did not respond. The aircraft struck a irrigation pivot with the right wing causing the aircraft to impact the ground in a vertical position sliding to a stop inverted.

As the FAA filed it

(-23) ON 07-20-08 AT APPROX. 0800 HRS LOCAL THE AIRCRAFT DEPARTED LAKIN AIRPORT (36K)ON AN AGRICULTURAL SPRAY MISSION. PRIOR TO DEPARTURE 375 GAL OF CHEMICAL MIX AND 40 GAL OF FUEL WERE ADDED TO THE AIRCRAT. AFTER FUELING IT WAS NOTED THAT THE LEFT TANK CONTAINED APPROX. 1/2 AND THE RIGHT TANK WAS APPROX. 3/4 FULL. DURING THE SPRAY OPERATION 2 FIELDS ADJACENT TO EACH OTHER WERE SPRAYED USING THE REVERSE RACE TRACK PATTERN. FOR THE LAST PASS THE PILOT CLIMBED OVER A SET OF POWERLINES ON THE SOUTH SIDE OF THE FIELD AND SPRAYED ALLOWING THE CHEMICAL TO DRIFT UNDER THE POWERLINES. DURING THIS OPERATION THE PILOT SLIPPED THE AIRCRAFT WITH THE LEFT WING UP FOR THE LENGTH OF THE FIELD. FOLLOWING THIS PASS THE PILOT EXECUTED A 60 DEGREE CLIMBING RIGHT TURN. DURING THIS TURN THE PILOT WAS NOT LOOKING AT THE INSTRUMENTS, BUT LOOKING AT THE SPRAY PATTERN. AT APPROX. 100 FT AGL THE PILOT ATTEMPTED TO LEVEL THE AIRCRAFT ON A WEST HEADING, BUT WAS UNABLE TO. THE RIGHT WING CONTINUED TO DROP FOLLOWED BY THE NOSE. THE PILOT ATTEMPTED TO ADD POWER TO THE AIRCRAFT, THE THE ENGINE DID NOT RESPOND. THE AIRCRAFT STRUCK A IRRIGATION PIVOT WITH THE RIGHT WING CAUSING THE AIRCRAFT TO IMPACT THE GROUND IN A VERTICAL POSITION SLIDING TO A STOP INVERTED.

NTSB investigation

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