CHI98LA305

NTSB accident investigation · Air Tractor AT-301 · Edgeley, ND · August 9, 1998

Accident · No injuriesLimited investigationFinal report
Date
August 8, 1998, 19:45 local (Aug 9, 1998, 00:45 UTC)
Place
Edgeley, ND
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N4443SAir Tractor AT-301
Weather
Visual (VMC) · Dawn
Status
Completed · report January 18, 2001
Report
Approved by Office Director
FAA report
19980808020119A
Case key
43637

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'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.

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 - in flightTakeoff - initial climb
Weather condition - high density altitudeFactor
Airspeed - not maintainedPilot in commandCause
Aircraft weight and balance - exceededPilot in commandFactor
Stall/mush - encounteredPilot in command
Load jettison - delayedPilot in commandFactor
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - roadway/highwayFactor
Terrain condition - cropFactor

Analysis

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.'

Factual 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.

Aircraft

Registration
N4443S
Reported as
Air Tractor AT-301
Category
Airplane
Serial number
103
Engine
P&W R-1340, 600 horsepower, reciprocating
Damage
Substantial damage
Flight
Aerial application · Part 137
Operator
Tom Kiefer
Registered owner
Northland Aviation Inc.
Airworthiness certificate
Special, Restricted (Special)
Airport
51D · Edgeley Municipal, runway 26, 2,485 × 35 ft, asphalt

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
27
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Center
Flight hours
2,800 total · 1,400 in this make and model · 2,600 as pilot in command · 500 in the last 90 days · 150 in the last 30 days · 10 in the last 24 hours

Weather

Conditions
Visual (VMC) · Dawn
Wind
180° at 8 knots
Visibility
15 statute miles
Lowest ceiling
25,000 ft broken
Temperature
82 °F, dew point 61 °F
Altimeter
29.00 inHg
Observed at
JMS, 32 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.