CEN21LA005

NTSB accident investigation · Air Tractor AT402 · Egypt, AR · October 2, 2020

Accident · No injuriesClass 4 · LimitedFinal report
Date
October 2, 2020, 07:30 local (12:30 UTC)
Place
Egypt, AR
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N4540FAir Tractor AT402
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 FSDO
FAA report
20201002012259A
Case key
102087

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’s failure to maintain clearance from a tree limb during a low-level aerial application flight.

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: tree(s)Environmental issues › Physical environment · Contributed to outcomeAir Tractor AT-402: 1 caseAll aircraft: 933 casesProbable cause
Performance/control parameters: altitudeAircraft › Aircraft oper/perf/capability · Not attained/maintainedAir Tractor AT-402: 1 caseAll aircraft: 1,310 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 was flying an aerial application pass to a rice field when the right wing struck a tree limb at the edge of the field. After the collision, the airplane was “descending slowly and trying to roll.” He executed a forced landing to an open field. The airplane sustained substantial damage to both wings. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Aircraft

Registration
N4540F
Reported as
Air Tractor AT402
Category
Airplane
Serial number
402-0784
Built
1990
Engine
Pratt & Whitney PT6A-28, 715 horsepower, turbo prop
Damage
Substantial damage
Flight
Aerial application · Part 137
Operator
Over The Top Aviation Inc.
Registered owner
Over The Top Aviation Inc.
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · August 11, 2020 · 28 hours before
Departed
9AR9 · Cash, AR
Airport
9AR9 · Over the Top Aviation
Equipment
Stall warning system

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
32
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Without waivers/limitations
Last flight review
November 2, 2019
Seat
Single
Restraint
3-point
Flight hours
1,090 total · 560 in this make and model · 1,000 as pilot in command · 274 in the last 90 days · 15 in the last 30 days · 0.5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
350° at 5 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
50 °F, dew point 41 °F
Altimeter
30.27 inHg
Observed at
JBR, 14 nm away

Docket · 2

The files NTSB released with the investigation on July 2, 2021, on NTSB’s docket system: statements, records, photos and specialists’ reports. 3.7 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.