- Date
- July 30, 2022, 13:00 local (18:00 UTC)
- Place
- Ute, IA
- Injuries
- 1 fatal
- Damage
- Destroyed
- Phase of flight
- Maneuvering
- Aircraft
- N501MWAir Tractor AT502
- Defining event
- Maneuvering-low-alt flying: Low altitude operation/event
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- Investigation class
- Class 3
- NTSB office
- Central Region
- Parties
- FAA FSDO, Air Tractor
- FAA report
- 20220730007609A
- Case key
- 105624
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 inflight collision with a power line during aerial application.
Findings · 4
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
While conducting an aerial application flight, the airplane’s left wing contacted a power line on the western edge of the field. The airplane subsequently impacted the ground nose-low and a postimpact fire ensued. Examination of the wreckage did not reveal any anomalies which would have precluded normal operation of the airplane.
Factual narrative
On July 30, 2022, about 1300 central daylight time, an Air Tractor AT-502A airplane, N501MW, was destroyed when was involved in an accident near Ute, Iowa. The pilot was fatally injured. The airplane was operated under the provisions of Title 14 Code of Federal Regulations Part 137 as an aerial application flight. The airplane was applying chemicals to a field. The airplane struck a wire on the western edge of the field and subsequently impacted terrain. A postcrash fire ensued. There are no known witnesses to the accident. No ADS-B data was located for the accident flight. Toxicology was conducted on samples from the pilot. Testing was negative for carbon monoxide and ethanol. Loratadine and desloratadine were detected which are a nonprescription sedating antihistamine used to treat allergies. The airplane wreckage came to rest on a paved road, upright, facing a magnetic heading of 130°. The field that the pilot was spraying was to the east of the accident site and was bordered on three sides by power lines. Damaged power lines were located on the western edge of the field. Portions of the left wing were scattered around the powerlines and to the north of the wreckage. The airplane engine was driven near vertical into the edge of a paved road about 7 yards west of the damaged powerlines. A post-impact fire consumed a majority of the left wing, fuselage, and empennage. Figure 1 Accident Site (Photo from Monona County Sheriff's Office) Examination of the airplane did not reveal any preimpact anomalies which would have precluded normal operation.
Aircraft
- Registration
- N501MW
- Reported as
- Air Tractor AT502 (A)
- Category
- Airplane
- Serial number
- 502A-3232
- Built
- 2020
- Airframe hours
- 748.5
- Engine
- P&W Canada PT6A-140AG, 867 horsepower, turbo prop
- Damage
- Destroyed
- Fire
- On-Ground
- Flight
- Aerial application · Part 137
- Operator
- Midwest Custom Ag Aviation, doing business as Midwest Custom Ag Aviation
- Registered owner
- Bank Of Utah Trustee
- Airworthiness certificate
- Special, Restricted (Special)
- Last inspection
- Annual · March 11, 2022
- Departed
- KMEY · Mapleton, IA
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
- 45
- Injuries
- Fatal
- Certificate
- Commercial
- Airplane ratings
- Single-engine sea, Single-engine land
- Medical
- Class 2, Without waivers/limitations
- Last flight review
- November 18, 2021
- Seat
- Single
- Restraint
- 4-point
- Toxicology
- Performed
- Flight hours
- 5,900 total · 1,370 in this make and model · 200 in the last 90 days
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 210° at 8 knots, gusting 15
- Visibility
- 9 statute miles
- Lowest ceiling
- None
- Temperature
- 81 °F, dew point 59 °F
- Altimeter
- 30.16 inHg
- Observed at
- KDNS, 15 nm away
- METAR
- KDNS 301755Z AUTO 21008G15KT 180V240 9SM CLR 27/15 A3016 RMK AO2
Docket · 6
The files NTSB released with the investigation on February 28, 2024, on NTSB’s docket system: statements, records, photos and specialists’ reports. 10.1 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.