- Date
- October 2, 2002, 14:30 local (19:30 UTC)
- Place
- Marmaduke, AR
- Injuries
- 1 minor
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- N155HFAir Tractor AT-400
- Weather
- Visual (VMC) · Day
- Status
- Completed · report November 25, 2003
- Report
- Approved by Office Director
- Parties
- FAA FSDO
- FAA report
- 20021002031339A
- Case key
- 55824
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's failure to maintain aircraft control. A contributing factor was the towering cumulus in all quadrants.
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.
Analysis
During the aerial application flight, two fields were being sprayed from east to the west with a set of power lines running north and south between the fields. The pilot would fly the airplane over the power lines and then descend to spray the field. During the accident swath descent to spray the east field, the airplane struck the ground. The pilot and local authorities reported that the winds were "strong" from the southwest. The weather observation facility, located approximately 22 nautical miles southwest of the accident site, reported the wind from 250 degrees at 4 knots, visibility 10 statute miles, few clouds at 4,000 feet agl and a broken ceiling at 5,500 feet agl, temperature 31 degrees Celsius, dew point 22 degrees Celsius, an altimeter setting of 30.01 inches of Mercury, and towering cumulus clouds in all quadrants.
Factual narrative
On October 2, 2002, at 1430 central daylight time, an Air Tractor AT-400, agricultural airplane, N155HF, sustained substantial damage following a loss of control during an aerial application flight near Marmaduke, Arkansas. The airplane was owned and operated by Kuntz Aviation of Carthage, Mississippi, under Code of Federal Regulations Part 137. The commercial pilot, sole occupant, received minor injuries. Visual meteorological conditions prevailed for the local flight, and a flight plan was not filed. The flight originated at an unknown time.
The pilot and local authorities reported that the winds were "strong" from the southwest. During the aerial application entry to the cotton field a gust of wind struck the airplane and the airplane struck the ground. Subsequently, the airplane skidded approximately 39 feet, the left main landing gear collapsed, and the airplane skidded an additional 366 feet before coming to rest upright in the cotton field. The empennage separated from the airframe and the left wing was damaged.
On the Pilot/Operator Aircraft Accident Form (NTSB Form 6120.1/2) the operator reported that two fields were being sprayed from east to the west with a set of power lines running north and south between the fields. The pilot would fly the airplane over the power lines and then descend to spray the field. During the accident swath descent to spray the field, the airplane struck the ground.
At 1453, the weather observation facility at Jonesboro, Arkansas, located approximately 22 nautical miles southwest of the accident site, reported the wind from 250 degrees at 4 knots, visibility 10 statute miles, few clouds at 4,000 feet agl and a broken ceiling at 5,500 feet agl, temperature 31 degrees Celsius (88 degrees Fahrenheit), dew point 22 degrees Celsius (71 degrees Fahrenheit), and an altimeter setting of 30.01 inches of Mercury. Towering cumulus clouds were reported in all quadrants.
Aircraft
- Registration
- N155HF
- Reported as
- Air Tractor AT-400
- Category
- Airplane
- Serial number
- 0488
- Airframe hours
- 6,200
- Engine
- Pratt & Whitney PT6A-20, 550 horsepower, turbo prop
- Damage
- Substantial damage
- Flight
- Aerial application · Part 137
- Registered owner
- Glenn Kuntz
- Airworthiness certificate
- Special, Restricted (Special)
- Last inspection
- Annual · March 28, 2002 · 400 hours before
- Departed
- Marmaduke, AR
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
- 39
- Injuries
- Minor
- Certificate
- Commercial
- Airplane ratings
- Single-engine land
- Medical
- Class 2, Valid Medical--no waivers/lim.
- Seat
- Center
- Flight hours
- 11,000 total
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 250° at 4 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- 5,500 ft broken
- Temperature
- 88 °F, dew point 72 °F
- Altimeter
- 30.01 inHg
- Observed at
- JBR, 22 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.
Other investigations on N155HF · 1
Matched to the same aircraft by N-number and date.