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Aviation safety reports, made easier to study

NTSB Reports is an independent research and search tool for public aviation accident and incident records. It brings NTSB aviation reports, structured fields, docket files, extracted figures, photos, videos, and update history into one searchable interface.

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NTSB Report

August 9, 1998 · Air Tractor AT-301 · N4443S

Edgeley, ND

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
August 9, 1998
Injury Outcomes
No injuries (1 uninjured)
Location
Edgeley, ND
Aircraft
Air Tractor AT-301
Tail Number
N4443S
Operator
Tom Kiefer
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CHI98LA305

The agricultural aircraft's certificated gross weight was 5,000 pounds. The pilot reported departing at 5,895 pounds. The temperature was 84 degrees F. with light and variable winds, and the pilot reported that the crash was a result of high density altitude. The pilot departed from a 2,485-foot asphalt runway to the west. He stated that 'Upon reaching the end of the runway, I proceeded to pull up. The a/c [aircraft] went into a 3pt attitude. I began to dump my load. The a/c flew in an uncontrolled manner for 100 yds then the right wing struck a gravel road sending me sideways into a cornfield for 300 ft then the a/c came to a stop.'

NTSB Probable Cause

The pilot's failure to maintain flying airspeed resulting in a stall/mush condition during the initial climb. Contributing factors were the high density altitude, high aircraft weight, and pilot's delayed jettison of the load, as well as the roadway and crop.

Full Narrative

On August 8, 1998, at 1945 central daylight time, an Air Tractor AT-301, N4443S, operated by a commercial pilot, received substantial damage on collision with crops and terrain during takeoff on runway 26 (2,485 feet by 30 feet, asphalt/turf/aggregate friction seal coat) at Edgeley Municipal Airport near Edgeley, North Dakota. As the aircraft lost altitude the pilot realized that the load was too heavy and dropped the load. The aircraft hit the ground twice and rolled into a cornfield. Visual meteorological conditions prevailed at the time of the accident. The 14 Part 137 local agricultural flight was not operating on a flight plan. The pilot reported no injuries. The flight originated at Edgely Municipal Airport. In a written statement, the pilot reported the following: "...I attempted a takeoff to the west. I had 40 gallons of fuel and 250 gal. of H2O in the hopper. Upon reaching the end of the runway, I proceeded to pull up. The a/c went into a 3pt attitude. I began to dump my load. The a/c flew in an uncontrolled manner for 100 yds then the right wing struck a gravel road sending me sideways into a cornfield for 300 ft then the a/c came to a stop." The pilot also reported that the crash was a result of density altitude. According to a Federal Aviation Inspector, the pilot stated to the highway patrol that he had 320 gallons of product. The aircraft was loaded to 5,895 lbs. The temperate was 84 degrees F with light and variable winds at the time of the accident. The aircraft had a certified gross weight of 5,000 lbs.

Flight

Event TypeAccident
Event Time19:45 CDT
Nearest AirportEdgeley Municipal (0nm W)
Runway26
Runway Length2485 ft
Runway Width35 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftAir Tractor AT-301
Tail NumberN4443S
Aircraft CategoryAir
DamageSubstantial
OperatorTom Kiefer
Operating RulePart 137
Engines1
Engine TypeReciprocating
Engine DetailsP&W · R-1340 · Reciprocating · 600
Seats1

People & Injuries

Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 27 · Second Class

Conditions

ConditionsVMC
LightDawn
Wind180° @ 8 kt
Visibility15 sm
CeilingBroken clouds 25000 ft
Temperature / Dew Point61 F
Altimeter29.00 inHg
Observation Time00:50
Weather SourceWFAC

Appendix: Source Data