DFW08CA235

NTSB accident investigation · Gulfstream-Schweizer A/C Gulfstream · Patterson, LA · September 18, 2008

Accident · No injuriesData collectionFinal report
Date
September 18, 2008, 10:00 local (15:00 UTC)
Place
Patterson, LA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N425LSGulfstream-Schweizer A/C Gulfstream
Defining event
Maneuvering: Fuel contamination
Weather
Visual (VMC) · Day
Status
Completed · report December 3, 2008
Report
Approved by Office Director
Parties
FAA FSDO
FAA report
20080918848079A
Case key
68968

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 loss of engine power due to fuel contamination. Contributing to the accident was the unsuitable muddy terrain for the forced landing.

Findings · 2

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Fluids: fuelAircraft › Fluids/misc hardware · Fluid conditionGulfstream-Schweizer A/C GULFSTREAM AM G-164B: 1 caseAll aircraft: 1,695 casesProbable cause
Terrain: wet/muddy terrainEnvironmental issues › Physical environment · Contributed to outcomeGulfstream-Schweizer A/C GULFSTREAM AM G-164B: 1 caseAll aircraft: 110 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The commercial pilot had refueled and reloaded chemical and departed the airport en route to his third spray mission of the day when the aircraft lost power. The pilot selected an open field next to the cane field that he intended to spray and set up for his forced landing. When the airplane touched down the wheels sank into the mud and nosed over coming to rest inverted. The pilot was uninjured. The airplane sustained substantial damage to the wings and wing struts. The pilot stated in the pilot operator report that water was found in the fuel resupply truck and in the airplane fuel tanks.

Factual narrative

The commercial pilot had refueled and reloaded chemical and departed the airport en route to his third spray mission of the day when the aircraft lost power. The pilot selected an open field next to the cane field that he intended to spray and set up for his forced landing. When the airplane touched down the wheels sank into the mud and nosed over coming to rest inverted. The pilot was uninjured. The airplane sustained substantial damage to the wings and wing struts. The pilot stated in the pilot operator report that water was found in the fuel resupply truck and in the airplane fuel tanks.

Aircraft

Registration
N425LS
Reported as
Gulfstream-Schweizer A/C Gulfstream
Category
Airplane
Serial number
598B
Engine
Pratt And Whitney PT6A, 650 horsepower, turbo prop
Damage
Substantial damage
Flight
Aerial application · Part 137
Operator
B & S Flyers Inc, doing business as B & S Flyers Inc
Registered owner
B & S Flyers Inc
Airworthiness certificate
Special, Restricted (Special)
Departed
KPTN · Patterson, LA
Destination
KPTN · Patterson, LA
Airport
KPTN · Harry P Williams Memorial

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
59
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, With waivers/limitations
Seat
Single
Flight hours
15,000 total · 13,500 in this make and model · 14,000 as pilot in command · 450 in the last 90 days · 150 in the last 30 days · 10 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
80° at 3 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
84 °F, dew point 72 °F
Altimeter
30.04 inHg
Observed at
KPTN

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 N425LS · 1

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