CHI96LA258

NTSB accident investigation · Air Tractor AT-301 · Liberal, KS · July 28, 1996

Accident · Serious injuriesLimited investigationFinal report
Date
July 27, 1996, 19:20 local (Jul 28, 1996, 00:20 UTC)
Place
Liberal, KS
Injuries
1 serious
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N8837SAir Tractor AT-301
Weather
Visual (VMC) · Day
Status
Completed · report December 23, 1996
Report
Approved by Office Director
FAA report
19960727020199A
Case key
10328

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 did not maintain aircraft control. A factor was a low altitude flight maneuver was performed.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Vortex turbulence encounteredManeuvering - aerial application
Low altitude flight/maneuver - performedPilot in commandFactor
Loss of control - in flightManeuvering - aerial application
Aircraft control - not maintainedPilot in commandCause
In flight collision with terrain/waterManeuvering - aerial application

Analysis

While completing the last spraying pass, the pilot made a 270 degree right turn to spray the last area in the field. The pilot said he flew back through his prop wash and lost control of the airplane. The airplane impacted the terrain in a vertical angle.

Factual narrative

On July 27, 1996, at 1920 central daylight time (cdt), an Air Tractor AT-301, N8837S, owned and operated by a commercial pilot, was destroyed during a collision with terrain while conducting aerial spraying. The pilot reported serious injuries. Visual meteorological conditions prevailed at the time of the accident. The 14 CFR Part 137 flight was not operating on a flight plan. The flight departed Liberal, Kansas, at 1845 cdt.

According to the pilot's written statement, after spraying a field, the pilot made a 270 degree right turn to spray the last area of the field. The pilot stated, "When I reentered the field, I must have flown back through my prop wash causing me to lose control of the aircraft, causing me to hit the ground at a vertical angle."

Aircraft

Registration
N8837S
Reported as
Air Tractor AT-301
Category
Airplane
Serial number
301-0211
Engine
P&W R-1340, 600 horsepower, reciprocating
Damage
Destroyed
Flight
Aerial application · Part 137
Registered owner
Shannon Dickson
Airworthiness certificate
Special, Restricted (Special)
Departed
LBL
Destination
LBL

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
41
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Center
Flight hours
8,189 total · 4,500 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
150° at 10 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
82 °F, dew point 66 °F
Altimeter
30.00 inHg
Observed at
DDC, 31 nm away

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.