FTW01LA137

NTSB accident investigation · Air Tractor AT-400 · Oil Trough, AR · June 8, 2001

Accident · No injuriesLimited investigationFinal report
Date
June 8, 2001, 14:00 local (19:00 UTC)
Place
Oil Trough, AR
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N400ZRAir Tractor AT-400
Weather
Visual (VMC) · Day
Status
Completed · report October 9, 2001
Report
Approved by Office Director
Parties
Federal Aviation Administration
FAA report
20010608014559A
Case key
52449

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 refuel the airplane which resulted in the loss of engine power due to fuel exhaustion. A contributory factor was the lack of suitable terrain for the forced landing.

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 engine power(total) - nonmechanicalCruise
Fluid,fuel - exhaustionCause
Refueling - not performedPilot in commandCause
Forced landingEmergency descent/landing
In flight collision with terrain/waterLanding - roll
Terrain condition - none suitableFactor
Terrain condition - crop
Terrain condition - wet

Analysis

While returning to the private grass airstrip, the agricultural airplane's engine lost power, and the pilot executed a forced landing to a field. During the landing roll, the airplane impacted crops, ground looped, and came to rest upright in the field. Examination by an FAA inspector found that the airplane's fuel tank was empty. The pilot stated that fuel starvation occurred.

Factual narrative

On June 8, 2001, at 1400 central daylight time, an Air Tractor AT-400 agricultural airplane, N400ZR, was substantially damaged during impact with terrain following a loss of engine power during cruise near Oil Trough, Arkansas. The commercial pilot, sole occupant of the airplane, was not injured. The airplane was owned and operated by Hankins Flying Service, of Oil Trough, Arkansas. Visual meteorological conditions prevailed and a flight plan was not filed for the 14 Code of Federal Regulations Part 137 aerial application flight. The flight originated from the Hankins Flying Service private grass airstrip at 1350.

On the Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1/2), the pilot stated that the flight was returning to the airstrip after completing the aerial application of fertilizer onto a rice field. When the airplane was approximately 300-400 feet agl, the "engine started losing power." The pilot turned the fuel boost pump "ON" and dumped the remainder of fertilizer from the airplane's hopper. The pilot attempted a forced landing to a bean field. The airplane cleared a highline, however, it landed in a rice field about 50-70 yards short of the bean field. The pilot stated that, in his opinion, "fuel starvation occurred."

According to the FAA inspector, who responded to the accident site, the airplane impacted crops, ground looped, and came to rest upright in the field. The FAA inspector found the airplane's fuel tank empty. Both wings were found separated from the fuselage, and the fuselage was found separated in half.

Aircraft

Registration
N400ZR
Reported as
Air Tractor AT-400
Category
Airplane
Serial number
400-0516
Airframe hours
6,500
Engine
P&W PT6-11AG, 528 horsepower, turbo prop
Damage
Substantial damage
Flight
Aerial application · Part 137
Registered owner
Hankins Flying Service
Airworthiness certificate
Special, Restricted (Special)
Last inspection
100 hour · May 12, 2001 · 100 hours before
Departed
N/A · Oil Trough, AR
Airport
Private, runway 36, 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
36
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--no waivers/lim.
Last flight review
September 27, 1999
Seat
Center
Flight hours
7,500 total · 1,500 in this make and model · 7,500 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
90° at 5 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
84 °F, dew point 64 °F
Altimeter
30.02 inHg
Observed at
BVX

FAA reports on this event · 1

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