MKC89LA190

NTSB accident investigation · Air Tractor AT-401 · Wabbaseka, AR · August 26, 1989

Accident · No injuriesLimited investigationFinal report
Date
August 25, 1989, 19:15 local (Aug 26, 1989, 00:15 UTC)
Place
Wabbaseka, AR
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N10103Air Tractor AT-401
Weather
Visual (VMC) · Day
Status
Completed · report June 18, 1990
Report
Approved by Office Director
FAA report
19890825032139A
Case key
34858

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

Improper planning/decision by the pilot which resulted in his failure to maintain clearance from the tall vegetation (grass). The tall vegetation & high density altitude were considered to be contributing factors.

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.

In flight collision with terrain/waterTakeoff - roll/run
Weather condition - high density altitudeFactor
Planning/decision - improperPilot in commandCause
Terrain condition - high vegetationFactor
Clearance - not maintainedPilot in commandCause
Load jettison - not attained
Terrain condition - dirt bank/rising embankmentFactor

Analysis

The pilot said that shortly after taking off on an aerial application flt, he began a shallow right turn & the acft settled. The right wing and spray boom contacted tall grass. The acft then veered into a rice field where it struck a levee & damaged the landing gear. The plt believed the high temp (87 deg) & relatively high density altitude (2000') may have contributed to the occurrence. Also, he rprtd that he did not have enough time to dump the chemical load.

Aircraft

Registration
N10103
Reported as
Air Tractor AT-401
Category
Airplane
Serial number
401-0709
Airframe hours
435
Engine
P&W R-1340-AN1, 600 horsepower, reciprocating
Damage
Substantial damage
Flight
Aerial application · Part 137
Registered owner
Jerry'S Flying Service
Airworthiness certificate
Special, Restricted (Special)
Last inspection
100 hour · August 20, 1989 · 10 hours before
Airport
Jerry'S Pvt, runway 18, 2,700 × 90 ft, grass/turf

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
29
Certificate
Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
4,600 total · 364 in this make and model · 200 in the last 90 days · 100 in the last 30 days · 9 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Visibility
20 statute miles
Lowest ceiling
None
Temperature
88 °F, dew point -0 °F

FAA reports on this event · 1

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

Other investigations on N10103 · 1

Matched to the same aircraft by N-number and date.