CEN21LA354

NTSB accident investigation · Air Tractor AT-502 · Wooster, OH · August 4, 2021

Accident · Serious injuriesClass 4 · LimitedFinal report
Date
August 4, 2021, 10:25 local (14:25 UTC)
Place
Wooster, OH
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N1519UAir Tractor AT-502
Defining event
Maneuvering-low-alt flying: Low altitude operation/event
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Central Region
Parties
FAA
FAA report
20210804014189A
Case key
103629

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The pilot inadvertently collided with powerline wires during an agricultural spraying flight, resulting in a loss of aircraft control and subsequent impact with the ground.

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.

Object/animal/substance: wireEnvironmental issues › Physical environment · Effect on equipmentAir Tractor AT-502: 6 casesAll aircraft: 588 casesProbable cause
Use of equip/info: use of equip/systemPersonnel issues › Task performance · PilotAir Tractor AT-502: 1 caseAll aircraft: 1,391 casesProbable cause
Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Attain/maintain not possibleAir Tractor AT-502: 6 casesAll aircraft: 3,958 casesProbable cause

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 he was conducting an aerial application flight and was spraying his third field of the day when while maneuvering to make his next pass under high-tension powerlines he heard a “pop” and the airplane pitched up and started to “fishtail”. The pilot pitched the airplane down to regain control and attempted to maneuver to an open field to land the airplane. The airplane rolled and it felt as if the right wing stalled. The airplane then struck the wires next to the road and cartwheeled into the yard on the opposite side of the street. The airplane sustained substantial damage to the forward fuselage, both wings, the aft fuselage, and empennage. There were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operations.

Aircraft

Registration
N1519U
Reported as
Air Tractor AT-502
Category
Airplane
Serial number
502-0154
Built
1991
Engine
Pratt & Whitney PT6A-60A, turbo prop
Damage
Substantial damage
Flight
Aerial application · Part 137
Operator
Carlson Production Services LLC, doing business as Carlson Ag Aviation
Registered owner
Carlson Production Services LLC
Airworthiness certificate
Special, Restricted (Special)
Departed
BJJ · Wooster, OH
Airport
BJJ

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
24
Injuries
Serious
Certificate
Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2
Seat
Single
Flight hours
1,037 total · 310 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
90° at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
72 °F, dew point 55 °F
Altimeter
30.15 inHg
Observed at
KBJJ, 5 nm away
METAR
METAR KBJJ 041356Z AUTO 09004KT 10SM CLR 22/13 A3015 RMK AO2 SLP204 T02220128=

Docket · 2

The files NTSB released with the investigation on April 6, 2022, on NTSB’s docket system: statements, records, photos and specialists’ reports. 395 KB 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 N1519U · 1

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