Aircraft Accident/Incident Report

Tranquillity, California 93668
Wednesday, September 9, 1992 10:00 PDT

NTSB Narrative Summary Released at Completion of Accident

THE PILOT WAS CONDUCTING AN AERIAL APPLICATION FLIGHT OVER AN ALFALFA FIELD. THE PILOT HAD TO FLY OVER TREES AND DESCEND TO ALIGN THE AIRPLANE ON THE SPRAY PATH. THE PILOT SET UP A HIGH DESCENT RATE WHICH HE COULD NOT ARREST. THE AIRPLANE COLLIDED WITH THE TERRAIN, COLLAPSED THE RIGHT MAIN LANDING GEAR AND GROUND LOOPED.

NTSB Probable Cause Narrative

THE PILOT'S IMPROPER INFLIGHT PLANNING; HIS FAILURE TO ATTAIN THE PROPER DESCENT RATE; AND THE EXCESSIVE DESCENT. CONTRIBUTING TO THIS ACCIDENT WAS THE LANDING GEAR COLLAPSE DUE TO OVERLOAD.

Event Information

Type of Event Accident
Event Date 9/9/1992
Event Day of the Week Wednesday
Time of Event 1000
Event Time Zone Pacific Daylight Time
Event City TRANQUILLITY
Event State CALIFORNIA
Event Country --
Zipcode of the event site 93668
Event Date Year 1992
Event Date Month 9
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 0
Degrees magnetic from airport 0
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Pilot
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
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) 30
Air Temperature at event time (in degrees celsius) 26
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Unknown
Wind Speed (knots) 0
Wind Velocity Indicator Calm
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
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) 2154
NTSB Notification Source --
NTSB Notification Date Sep 9 1992 12:00AM
NTSB Notification Time 1610
Fiche Number and/or location -used to find docket information 46944
Date of most recent change to record Dec 11 2000 3:19PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N5674X
NTSB Number LAX92LA379
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 Ayres
Aircraft Model S2R-600
Aircraft Series Identifier S2R-600
Aircraft Serial Number 2433R
Certified Max Gross Weight 8000
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? Unknown
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 Mar 5 1992 12:00AM
Airframe hours since last inspection 436
Airframe Hours 5369
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name WESTERN AG AVIATION
Aircraft Owner Street Address P.O. BOX 666
Aircraft Owner City TRANQUILLITY
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 93668
Operator is an individual? --
Operator Name WESTERN AG AVIATION
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address P.O. BOX 666
Operator City TRANQUILLITY
Operator State CA
Operator Country
Operator Zip code 93668
Operator Code RQIG
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 945
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 Maneuvering
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:35AM
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 --