20110823018369A

Accident · Destroyed

FAA accident report · Air Tractor AT-400 · Monago, ND · August 23, 2011

Date
August 23, 2011 · 19:30 local
Place
Monago, ND
Airport
Edgeley Municipal
Phase of flight
Maneuver
Operating rules
Agricultural (Part 137)
Operator
XUDG
Damage
Destroyed
Aircraft
N23720
NTSB investigation
NTSBCEN11LA593
Reported as
Air Tractor AT-400
Reported engine
Pratt & Whitney PT6A series
People aboard
1
Fatal injuries
0
Other injuries
1
Pilot’s certificate
Commercial pilot

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.

Pilot was spraying field NE of Monago ndin a "race track" type spray pattern. Sprayed 3 fields going east and west north of 85th st, then was spraying last fields north and south. South of 85th st. according to the pilot he does not remeber the accident only that he was coming in to spray the last pass. Aircraft struck tree north of field being sprayed, with right wing tip which caused the outboard 3 feet of the wing to depart. Debris field was from tree to the northwest in the direction of where the aircraft came to rest. Tree limbs and aircraft parts were spread out about 300'. Aircraft crashed heading south on the south side of 85th st. ditch. No impact marks noted on road way and power lines on north side of road were not hit. No post crash fire, no fuel smell at scence next morning when FAA personal arrived. Light chemical smell present. Aircraft fuselage had been had been removed from crash site Tuesday night. Wings, engine and landing gear along with final clean up was in progress when FAA inspectors arrived, wing tip and tree limbs were still undisturbed. Gound impact marks were made by left wing and nose of aircraft. Inspection of right wing showed signs of tree inpact as FAR in as about 6' from tip. One propeller blade was found about 50' forward and to the right about the 2 o'cloack position from the aircraft broken at the hub and about 6" from tip. Minor chord wise scrapes and mud spray. Garmin GPS 196 was discoved in aircraft which showed flight path. Satcom GPS card removed from receiver and both sent to NTSB.enigne inspection reveled propeller shaft broken off, power section broken off of the engine and burner can bend downword and pratialy torn off at c flange. Fuel control was broke apart. Fcu flyweights along with pump to fcu drive shaft showed signs of roation. Fuel filter bowl was removed and found to have fuel in it. Sample was taking, and filter also pulled. High pressure filter removed, fuel noted there as well and filter rmoved. Supply line at flow divider pulled and fuel was found in line. Pilot subustained injuries to face, ankle and ribs, but was able to get out of the aircraft and call for help.

As the FAA filed it

PILOT WAS SPRAYING FIELD NE OF MONAGO NDIN A "RACE TRACK" TYPE SPRAY PATTERN. SPRAYED 3 FIELDS GOING EAST AND WEST NORTH OF 85TH ST, THEN WAS SPRAYING LAST FIELDS NORTH AND SOUTH. SOUTH OF 85TH ST.ACCORDING TO THE PILOT HE DOES NOT REMEBER THE ACCIDENT ONLY THAT HE WAS COMING IN TO SPRAY THE LAST PASS.AIRCRAFT STRUCK TREE NORTH OF FIELD BEING SPRAYED, WITH RIGHT WING TIP WHICH CAUSED THE OUTBOARD 3 FEET OF THE WING TO DEPART. DEBRIS FIELD WAS FROM TREE TO THE NORTHWEST IN THE DIRECTION OF WHERE THE AIRCRAFT CAME TO REST. TREE LIMBS AND AIRCRAFT PARTS WERE SPREAD OUT ABOUT 300'. AIRCRAFT CRASHED HEADING SOUTH ON THE SOUTH SIDE OF 85TH ST. DITCH. NO IMPACT MARKS NOTED ON ROAD WAY AND POWER LINES ON NORTH SIDE OF ROAD WERE NOT HIT. NO POST CRASH FIRE, NO FUEL SMELL AT SCENCE NEXT MORNING WHEN FAA PERSONAL ARRIVED. LIGHT CHEMICAL SMELL PRESENT. AIRCRAFT FUSELAGE HAD BEEN HAD BEEN REMOVED FROM CRASH SITE TUESDAY NIGHT. WINGS, ENGINE AND LANDING GEAR ALONG WITH FINAL CLEAN UP WAS IN PROGRESS WHEN FAA INSPECTORS ARRIVED, WING TIP AND TREE LIMBS WERE STILL UNDISTURBED. GOUND IMPACT MARKS WERE MADE BY LEFT WING AND NOSE OF AIRCRAFT.INSPECTION OF RIGHT WING SHOWED SIGNS OF TREE INPACT AS FAR IN AS ABOUT 6' FROM TIP. ONE PROPELLER BLADE WAS FOUND ABOUT 50' FORWARD AND TO THE RIGHT ABOUT THE 2 O'CLOACK POSITION FROM THE AIRCRAFT BROKEN AT THE HUB AND ABOUT 6" FROM TIP. MINOR CHORD WISE SCRAPES AND MUD SPRAY. GARMIN GPS 196 WAS DISCOVED IN AIRCRAFT WHICH SHOWED FLIGHT PATH. SATCOM GPS CARD REMOVED FROM RECEIVER AND BOTH SENT TO NTSB.ENIGNE INSPECTION REVELED PROPELLER SHAFT BROKEN OFF, POWER SECTION BROKEN OFF OF THE ENGINE AND BURNER CAN BEND DOWNWORD AND PRATIALY TORN OFF AT C FLANGE. FUEL CONTROL WAS BROKE APART. FCU FLYWEIGHTS ALONG WITH PUMP TO FCU DRIVE SHAFT SHOWED SIGNS OF ROATION. FUEL FILTER BOWL WAS REMOVED AND FOUND TO HAVE FUEL IN IT. SAMPLE WAS TAKING, AND FILTER ALSO PULLED. HIGH PRESSURE FILTER REMOVED, FUEL NOTED THERE AS WELL AND FILTER RMOVED. SUPPLY LINE AT FLOW DIVIDER PULLED AND FUEL WAS FOUND IN LINE.PILOT SUBUSTAINED INJURIES TO FACE, ANKLE AND RIBS, BUT WAS ABLE TO GET OUT OF THE AIRCRAFT AND CALL FOR HELP.

NTSB investigation

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

Other reports on N23720 · 1

Matched to the same aircraft by N-number and date.