Aircraft Accident/Incident Report

Newellton, Louisiana 71357
Thursday, October 8, 1998 8:20 CDT

NTSB Narrative Summary Released at Completion of Accident

The agricultural airplane, flown by the non-instrument rated commercial pilot, descended into a lake following a loss of control during an inadvertent entry into adverse weather conditions. A 'very dense' fog bank extending from the ground to 300 to 400 feet agl moved rapidly into the area. The National Weather Service reported that throughout northeastern Louisiana, the weather conditions were: winds calm to 3 knots from the north, 1/4 statute mile visibility in fog, ceiling of 100 feet, and a temperature dewpoint spread of 2 degrees Celsius. The pilot had accumulated over 20,000 hours of aerial application flying including over 4,000 hours in the accident aircraft. The aircraft was not equipped for flight into instrument meteorological conditions. No pre-impact anomalies were found with the airframe or the engine.

NTSB Probable Cause Narrative

The pilot's failure to maintain aircraft control during an inadvertent entry into adverse weather conditions. A related factor was the fog.

Event Information

Type of Event Accident
Event Date 10/8/1998
Event Day of the Week Thursday
Time of Event 820
Event Time Zone Central Daylight Time
Event City NEWELLTON
Event State LOUISIANA
Event Country --
Zipcode of the event site 71357
Event Date Year 1998
Event Date Month 10
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport
Event Location Nearest Airport ID
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 814 Central Daylight Time
Direction of event from weather observation facility (degrees) 185
Weather Observation Facility ID NTZ
Elevation of weather observation facility 272
Distance of event from weather observation facility (units?) 20
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 100
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Partial Obscuration
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 0.25
Air Temperature at event time (in degrees celsius) 13
Dew Point at event time (in degress fahrenheit) 11
Wind Direction (degrees magnetic) 360
Variable Wind Indicator Unknown
Wind Speed (knots) 3
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal 1
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 1612
NTSB Notification Source --
NTSB Notification Date Oct 8 1998 12:00AM
NTSB Notification Time 935
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 11 2000 11:49AM
User who most recently changed record dbo
Basic weather conditions Instrument Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N4531M
NTSB Number FTW99FA004
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 137: Agricultural
Type of Flight Plan filed Company VFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Air Tractor
Aircraft Model AT-401
Aircraft Series Identifier AT-401
Aircraft Serial Number 401-0764
Certified Max Gross Weight 6000
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 1
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Feb 20 1998 12:00AM
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name NATHAN O. KIFER
Aircraft Owner Street Address P.O. BOX 177
Aircraft Owner City NEWELLTON
Aircraft Owner State LA
Aircraft Owner Country
Aircraft Owner Zipcode 71357
Operator is an individual? --
Operator Name
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address
Operator City
Operator State
Operator Country
Operator Zip code
Operator Code SFNG
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Agriculture
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not Unknown
Indicates Domestic or International Flight Unknown
Operator carrying Pax/Cargo/Mail Unknown
Type of Flying (Per_Bus / Primary) Aerial Application
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code 9M2
Departure City
Departure State
Departure Country
Departure Time 815
Departure Time Zone CDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Maneuvering
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:34AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --