CEN22LA408

NTSB accident investigation · Air Tractor AT-602 · Murray, NE · August 25, 2022

Accident · No injuriesClass 4 · LimitedFinal report
Date
August 25, 2022, 10:30 local (15:30 UTC)
Place
Murray, NE · Wet landing strip near aerial application operations
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N5951BAir Tractor AT-602
Defining event
Landing: Loss of control on ground
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
20220825013779A
Case key
105862

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 airplane control during landing resulting in an impact with crop and a subsequent ground-loop. Contributing was the wet turf airstrip.

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.

Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotAir Tractor AT-602: 17 casesAll aircraft: 9,295 casesProbable cause
Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedAir Tractor AT-602: 7 casesAll aircraft: 3,958 casesProbable cause
Runway/land/takeoff/taxi surface: wet surfaceEnvironmental issues › Physical environment · Contributed to outcomeAir Tractor AT-602: 3 casesAll aircraft: 141 casesProbable cause
Object/animal/substanceEnvironmental issues › Physical environment · Contributed to outcomeAir Tractor AT-602: 1 caseAll aircraft: 224 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 that there had been light rain in the morning prior to the flight and when he took off from the turf airstrip to conduct an aerial application flight, the turf was wet from the rain. Following applying fertilizer to a nearby cornfield, the pilot returned to the airstrip to land. After the main landing gear and tailwheel touched down and as the pilot applied brakes to steer, the airplane skidded, and the right wing struck cornstalks in the adjacent field. The airplane then ground-looped and rolled over. The airplane sustained substantial damage to the fuselage and left wing and aileron. The pilot reported that there were no other preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation, and that there were no mechanical malfunctions with the brake system.

Aircraft

Registration
N5951B
Reported as
Air Tractor AT-602
Category
Airplane
Serial number
602-1209
Built
2011
Airframe hours
3,563
Engine
P&W PT6A-60AG, 1,050 horsepower, turbo prop
Damage
Substantial damage
Flight
Aerial application · Part 137
Operator
Murdoch Aerial Spraying LLC
Registered owner
Murdoch Aerial Spraying LLC
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · August 2, 2022 · 349 hours before
Destination
Same as departure
Airport
NE82 · Nolte Farms Airport, runway 22, 2,500 × 75 ft, grass/turf
Equipment
Satellite tracking device, ADS-B

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
40
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Without waivers/limitations
Last flight review
May 18, 2022
Seat
Single
Restraint
5-point
Flight hours
3,607 total · 1,450 in this make and model · 300 in the last 90 days · 70 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Lowest ceiling
10,000 ft broken
Temperature
75 °F, dew point 71 °F
Altimeter
30.05 inHg
Observed at
PMV, 4 nm away

Docket · 2

The files NTSB released with the investigation on October 13, 2022, on NTSB’s docket system: statements, records, photos and specialists’ reports. 14.0 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.