CEN24LA246

NTSB accident investigation · Air Tractor AT-402 · Helm, MS · June 30, 2024

Accident · No injuriesClass 4 · LimitedFinal report
Date
June 30, 2024, 10:30 local (15:30 UTC)
Place
Helm, MS
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N9185KAir Tractor AT-402
Defining event
Initial climb: Aerodynamic stall/spin
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
20240630006469A
Case key
194585

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 failure to maintain control, which resulted in an aerodynamic stall and impact with terrain.

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.

Temp/humidity/pressure: high density altitudeEnvironmental issues › Conditions/weather/phenomena · Contributed to outcomeAir Tractor AT-402: 1 caseAll aircraft: 278 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotAir Tractor AT-402: 4 casesAll aircraft: 9,295 casesProbable cause
Performance/control parameters: climb rateAircraft › Aircraft oper/perf/capability · Capability exceededAir Tractor AT-402: 1 caseAll aircraft: 265 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 stated that while on takeoff from a 2,200 ft partial concrete and grass private runway, the airplane failed to lift off due to density altitude. He initiated a controlled dump of the hopper load near the end of the runway to increase climb performance. The pilot stated that the airplane then stalled and impacted terrain off the departure end of the private strip, which resulted in substantial damage to both wings, fuselage, and empennage. The pilot reported that there were no preaccident mechanical malfunctions or failures that would have precluded normal operations. The accident occurred after the pilot had conducted several agricultural spray applications with 350 gallon loads. He stated that temperature had reached 96°F and he should have carried a smaller load since conditions were not favorable. At the time of the accident density altitude had increased to about 2,530 ft.

Aircraft

Registration
N9185K
Reported as
Air Tractor AT-402
Category
Airplane
Serial number
402-0908
Built
1993
Airframe hours
15,360
Engine
Pratt & Whitney PT6 -15, 680 horsepower, turbo prop
Damage
Substantial damage
Flight
Aerial application · Part 137
Operator
Love Aero LLC
Registered owner
Love Aero LLC
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · March 31, 2024 · 40 hours before
Departed
PVT · Helm, MS
Destination
PVT · Helm, MS
Airport
PVT · Pvt, runway 18, 2,200 × 150 ft, concrete
Equipment
None

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
36
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Without waivers/limitations
Last flight review
January 31, 2024
Seat
Single
Restraint
4-point
Flight hours
1,451 total · 1,201 in this make and model · 1,451 as pilot in command · 100 in the last 90 days · 40 in the last 30 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
270° at 5 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
93 °F, dew point 81 °F
Altimeter
30.14 inHg
Icing
Unknown
Observed at
KGLH, 6 nm away
METAR
KGLH 301535Z AUTO 27005KT 10SM CLR 34/27 A3014 RMK T03400270

Docket · 3

The files NTSB released with the investigation on October 22, 2024, on NTSB’s docket system: statements, records, photos and specialists’ reports. 5.4 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.