CEN25LA002

NTSB accident investigation · Air Tractor AT-402A · Moffett, OK · October 1, 2024

Accident · No injuriesClass 4 · LimitedFinal report
Date
October 1, 2024, 16:20 UTC
Place
Moffett, OK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N45472Air Tractor AT-402A
Defining event
Landing: Sys/Comp malf/fail (non-power)
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
20241001014609A
Case key
195238

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 tail wheel assembly’s fractured bolt which resulted in the pilot’s loss of directional control during landing.

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.

Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Attain/maintain not possibleAir Tractor AT-402A: 1 caseAll aircraft: 3,958 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotAir Tractor AT-402A: 2 casesAll aircraft: 9,295 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

During the landing roll on a dirt strip, the pilot felt the airplane’s tail section “bottom out”. The pilot lost rudder control, and the airplane veered off the strip into vegetation and ground looped. During the ground loop, the left wing struck the ground, which resulted in substantial damage to the left wing and aileron. A postaccident examination of the airplane found that one of the bolts which secured the tail wheel spring to the tail wheel housing assembly had fractured. The pilot did not submit the National Transportation Safety Board Pilot/Operator Aircraft Accident/Incident Report Form 6120.1.

Aircraft

Registration
N45472
Reported as
Air Tractor AT-402A
Category
Airplane
Serial number
402A-0794
Built
1991
Engine
PWC PT6A-20, 550 horsepower, turbo prop
Damage
Substantial damage
Flight
Aerial application · Part 137
Operator
Hookin A Ag Inc, doing business as Hookin A Ag Inc
Registered owner
Allard Evan Wade DBA
Airworthiness certificate
Special, Restricted (Special)
Airport
NA · Private strip, runway 270, dirt
Equipment
Unknown

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
35
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Medical
Class 2, Without waivers/limitations
Seat
Single
Restraint
4-point

Weather

Conditions
Visual (VMC) · Day
Wind
10° at 8 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
88 °F, dew point 55 °F
Altimeter
30.09 inHg
Observed at
KFSM, 5 nm away
METAR
KFSM 012053Z 01008KT 10SM CLR 31/13 A3009 RMK AO2 SLP185 T03060133 56016

Docket · 3

The files NTSB released with the investigation on June 5, 2025, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.8 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.