- Date
- July 19, 2013, 08:07 local (13:07 UTC)
- Place
- Steward, IL
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- N155HFAir Tractor AT-400
- Defining event
- Maneuvering-low-alt flying: Low altitude operation/event
- Weather
- Visual (VMC) · Day
- Status
- Completed · report January 30, 2014
- Report
- Approved by Office Director
- NTSB office
- Central Region
- Parties
- FAA DuPage FDSO
- FAA report
- 20130719012309A
- Case key
- 87528
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
The pilot's failure to maintain clearance from the guy wires during an aerial application maneuver. Contributing to the accident was the pilot's failure to identify potential obstructions in the area before beginning low-altitude maneuvers.
Findings · 3
NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.
Sequence of events
The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.
Analysis
The pilot reported that he circled the field to check for obstacles before beginning to apply the agricultural product, but did not see any obstructions. He made the first aerial application pass without incident; however, during the second pass, the airplane hit guy wires "head on." The guy wires extended farther into the field than the pilot was accustomed to and can be difficult to see. The airplane impacted the cornfield, and the two adjacent towers were toppled by the impact with the guy wires. The pilot reported that there was no preaccident malfunction or system failure of the airplane that would have precluded normal operation.
Factual narrative
On July 19, 2013, about 0807 central daylight time, an Air Tractor AT-400, N155HF, sustained substantial damage when it impacted a guy wire and subsequently impacted the terrain near Steward, Illinois. The commercial pilot, the sole occupant, was seriously injured. The airplane was registered to Woodley Aerial Leasing LLC and operated by the pilot under the provisions of the 14 Code of Federal Regulations Part 137 as an aerial application flight. Visual meteorological conditions prevailed at the time of the accident, and no flight plan was filed. The flight originated from a local airstrip about 0740.The pilot reported that he circled the field to check for obstacles prior to beginning the application pass, but he did not see the guy wires reaching further into the field than he was normally accustomed. He made the first pass without incident, and then during the second pass the airplane hit the guy wires "head on." The airplane impacted the cornfield, and two towers were toppled by the impact with the guy wires. The pilot reported that there was no malfunction or system failure of the airplane before the accident.
Aircraft
- Registration
- N155HF
- Reported as
- Air Tractor AT-400
- Category
- Airplane
- Serial number
- AT400-0488
- Airframe hours
- 5,826
- Engine
- Pratt & Whitney PT-6A-27, 680 horsepower, turbo prop
- Damage
- Substantial damage
- Flight
- Aerial application · Part 137
- Operator
- Timothy Malsberg
- Registered owner
- Woodley Aerial Leasing LLC
- Airworthiness certificate
- Special, Restricted (Special)
- Last inspection
- Annual · July 15, 2013
- Departed
- C73 · Dixon, IL
- Destination
- C73 · Dixon, IL
- Airport
- C73 · Dixon Municipal
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 60
- Injuries
- None
- Certificate
- Commercial
- Airplane ratings
- Single-engine land
- Medical
- Class 2, With waivers/limitations
- Last flight review
- February 8, 2013
- Seat
- Center
- Flight hours
- 8,651 total · 1,440 in this make and model · 8,651 as pilot in command · 120 in the last 90 days · 15 in the last 30 days
Weather
- Conditions
- Visual (VMC) · Day
- Visibility
- 10 statute miles
- Temperature
- 75 °F
- Observed at
- 14 nm away
Docket · 7
The files NTSB released with the investigation on December 5, 2013, on NTSB’s docket system: statements, records, photos and specialists’ reports. 20.0 MB in all.
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.
Other investigations on N155HF · 1
Matched to the same aircraft by N-number and date.