CHI99LA159

NTSB accident investigation · Air Tractor AT-802A · Poplar Bluff, MO · May 23, 1999

Accident · No injuriesLimited investigationFinal report
Date
May 23, 1999, 14:00 local (19:00 UTC)
Place
Poplar Bluff, MO
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N6144HAir Tractor AT-802A
Weather
Visual (VMC) · Day
Status
Completed · report October 13, 2000
Report
Approved by Office Director
FAA report
19990523005539A
Case key
46368

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 selecting the wrong runway direction on which to initiate the takeoff and his failure to maintain directional control. Factors associated with the accident were the quartering tailwind condition, the rough terrain encountered, and fatigue.

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.

Loss of control - on ground/waterTakeoff - roll/run
Weather condition - tailwindFactor
Wrong runway - selectedPilot in commandCause
FatiguePilot in commandFactor
Directional control - not maintainedPilot in commandCause
On ground/water encounter with terrain/waterTakeoff - roll/run
Terrain condition - rough/unevenFactor
Main gear collapsedTakeoff - roll/run
Landing gear,main gear - overload

Analysis

The pilot stated that he initiated the takeoff with a '... strong quartering tailwind.' According to the pilot he was taking off to the east with the local winds from 315 degrees at 15 to 20 knots. He reported that the airplane veered to the left and he was unable to compensate for the veer using the rudder. The airplane traveled off the left side of the airstrip and through a rice field where it contacted a levee knocking off the main gear. The pilot stated he started flying at 0700 central daylight time and he had flown 24 loads on the day of the accident.

Factual narrative

On May 23, 1999, at 1400 central daylight time (cdt), an Air Tractor AT-802A, N6144H, operated by a commercial pilot collided with the terrain following a loss of directional control during a takeoff ground run from a private airstrip in Poplar Bluff, Missouri. The pilot was not injured. The airplane was substantially damaged. Visual meteorological conditions prevailed and no flight plan was filed for the local flight. The 14 CFR Part 137 flight was originating at the time of the accident.

The pilot stated he initiated the takeoff with a "... strong quartering tailwind." According to the pilot he was taking off to the east on the 2,600' x 100' paved airstrip and the local winds were from 315 degrees at 15 to 20 knots. He reported the airplane veered to the left and he was unable to compensate for the veer using the rudder. The airplane traveled off the left side of the airstrip and through a rice field where it contacted a levee knocking off the main gear.

The airplane was loaded with 5,000 pounds of fertilizer at the time of the accident. The pilot stated he started flying at 0700 cdt and he had flown 24 loads on the day of the accident.

Aircraft

Registration
N6144H
Reported as
Air Tractor AT-802A
Category
Airplane
Serial number
802-025
Airframe hours
1,441
Engine
P&W PT6-45, 1,100 horsepower, turbo prop
Damage
Substantial damage
Flight
Aerial application · Part 137
Registered owner
John M. Hall
Airworthiness certificate
Special, Restricted (Special)
Last inspection
100 hour · March 21, 1999 · 31 hours before
Airport
Private Airstrip, runway 9, 2,600 × 100 ft, asphalt

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
40
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Center
Flight hours
12,000 total · 1,500 in this make and model · 100 in the last 90 days

Weather

Conditions
Visual (VMC) · Day
Wind
315° at 15 knots, gusting 20
Visibility
15 statute miles
Lowest ceiling
None

FAA reports on this event · 1

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