Aircraft Accident/Incident Report

Pasco, Washington 99301
Thursday, July 9, 1998 10:00 PDT

NTSB Narrative Summary Released at Completion of Accident

The pilot reported that while taking off to the west and climbing through about 40 feet above ground, the engine went to idle. He stated that he dropped his chemical load and immediately landed in an open potato field. The landing roll was crosswise to the furrows and the aircraft ultimately nosed over. FAA on-site inspection revealed a disconnect of the throttle linkage just forward of the firewall where it attaches to a 90 degree bell-crank designed to translate forward/aft motion into left/right lateral motion. The threads on the bell-crank attach end of the longitudinal throttle tube were found to be heavily worn.

NTSB Probable Cause Narrative

Separation of the throttle linkage which resulted in the loss of power. Factors include worn throttle linkage parts and the furrows in the plowed field which was the available field for the forced landing.

Event Information

Type of Event Accident
Event Date 7/9/1998
Event Day of the Week Thursday
Time of Event 1000
Event Time Zone Pacific Daylight Time
Event City PASCO
Event State WASHINGTON
Event Country --
Zipcode of the event site 99301
Event Date Year 1998
Event Date Month 7
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 Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 953 Pacific Standard Time
Direction of event from weather observation facility (degrees) 238
Weather Observation Facility ID PSC
Elevation of weather observation facility 407
Distance of event from weather observation facility (units?) 7
Time Zone of the weather observation PST
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 27
Dew Point at event time (in degress fahrenheit) 17
Wind Direction (degrees magnetic) 350
Variable Wind Indicator Unknown
Wind Speed (knots) 3
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1248
NTSB Notification Source --
NTSB Notification Date Jul 10 1998 12:00AM
NTSB Notification Time 945
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 11 2000 11:38AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N4996X
NTSB Number SEA98LA125
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 137: Agricultural
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Rockwell
Aircraft Model S-2R
Aircraft Series Identifier S-2R
Aircraft Serial Number 2138R
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 Continuous Airworthiness
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours 14000
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name TITUS, GERALD, R.
Aircraft Owner Street Address 815 WEST 22ND PLACE
Aircraft Owner City KENNEWICK
Aircraft Owner State WA
Aircraft Owner Country
Aircraft Owner Zipcode 99337
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 WZKG
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
Departure City
Departure State
Departure Country
Departure Time 1000
Departure Time Zone PDT
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 Takeoff
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 --