DFW06LA121

NTSB accident investigation · Air Tractor AT-802A · Jasper, TX · May 1, 2006

Accident · Minor injuriesLimited investigationFinal report
Date
May 1, 2006, 08:00 local (13:00 UTC)
Place
Jasper, TX
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N8504TAir Tractor AT-802A
Weather
Visual (VMC) · Day
Status
Completed · report October 31, 2006
Report
Approved by Office Director
Parties
FAA FSDO
FAA report
20060501006959A
Case key
63646

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 NTSB’s determination of the probable cause, and any contributing factors.

The loss of engine power due to fuel exhaustion. A contributing factor was the lack of suitable landing for the pilot to execute the forced landing.

Analysis

The turbine powered agricultural airplane was loaded with a payload of 5,500 pounds of chemicals prior to a local aerial application flight. The 8,500-hour non-instrument rated commercial pilot reported to local authorities that while in-flight he experienced some problems with the on-board agricultural-navigation system; however, he elected to proceed to the field to be sprayed. While en route to the field, the engine surged a couple of times and lost power. The pilot attempted to execute a forced landing to a pasture. During the approach, the pilot was forced to make a sharp turn to avoid colliding with a fence, resulting in a hard landing and a subsequent loss of directional control. The payload of chemicals was found in the hopper, and the reason why the pilot did not elect to dump the load following the loss of engine power was not determined. The 2005 model airplane sustained major structural damage in the area aft of the engine firewall. Examination of the airplane by a Federal Aviation Administration inspector, who traveled to the accident site, revealed less than a cup of fuel in one tank and less than 5 gallons in the other. A completed Pilot/Operator Aircraft Accident/Incident Report (NTSB Form 6120.1) was never received from neither the pilot nor the operator.

Factual narrative

On 1 May 2006, at 0800 central daylight time, a single-engine Air Tractor AT-802A agricultural airplane, N8504T, was substantially damaged during a forced landing following a reported loss of engine power near Jasper, Texas. The commercial pilot, sole occupant of the airplane, sustained minor injuries. The airplane was registered to Ag Pilots, Inc., of Onalaska, Texas, and was being operated by Thrash Aviation. Visual meteorological conditions prevailed for the aerial application flight for which a flight plan was not filed. The local flight originated from the Jasper County Airport (JAS) at time unknown.

The turbine powered agricultural airplane was loaded with a payload of 5,500 pounds of chemicals prior to a local aerial application flight. The 8,500-hour non-instrument rated commercial pilot reported to local authorities that while in-flight he experienced some problems with the on-board agricultural-navigation system; however, he elected to proceed to the field to be sprayed. While enroute to the field, the PT6A series engine surged a couple of time and lost power. The pilot attempted to execute a forced landing to a pasture. During the approach, the pilot was forced to make a sharp turn to avoid colliding with a fence, resulting in a hard landing and a loss of directional control.

The payload of chemicals was found in the hopper, and the reason why the pilot was unable to dump the load following the loss of engine power was not determined. The 2005 model airplane sustained major structural damage in the area aft of the engine firewall.

Examination of the airplane by a Federal Aviation Administration inspector, who traveled to the accident site, revealed less of a cup of fuel was found in one tank and less than 5 gallons were found in the other. A completed Pilot/Operator Aircraft Accident/Incident Report (NTSB Form 6120.1) was not received from either the pilot or the operator.

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 powerManeuvering - aerial application
Fluid,fuel - exhaustionCause
Refueling - not performedPilot in command
Forced landingEmergency descent/landing
In flight collision with terrain/waterEmergency landing
Terrain condition - congested/confined area
Terrain condition - none suitableFactor

Aircraft

Registration
N8504T
Reported as
Air Tractor AT-802A
Category
Airplane
Serial number
802A-0218
Engine
Pratt & Whitney Canada PT6A, 800 horsepower, turbo prop
Damage
Substantial damage
Flight
Aerial application · Part 137
Operator
Jimmy Thrash, doing business as Thrash Aviation
Registered owner
AG Pilots Incorporated
Airworthiness certificate
Special, Restricted (Special)
Departed
JAS · Jasper, TX

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
42
Injuries
Minor
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, With waivers/limitations
Seat
Center
Flight hours
8,500 total · 150 in this make and model

Weather

Conditions
Visual (VMC) · Day
Visibility
10 statute miles
Lowest ceiling
None

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 N8504T · 1

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