Aircraft Accident/Incident Report

Prosser, Washington 99350
Thursday, October 10, 1996 8:45 PDT

NTSB Narrative Summary Released at Completion of Accident

The airplane departed for a second flight of the day to spray an apple orchard. The pilot had reported, that on the first flight, there was turbulence en route to the orchard, but the winds were calm at the orchard. During the second flight, the airplane impacted hills which were between the departure airport and the orchard. No preimpact malfunction or failure of the aircraft or engine was found.

NTSB Probable Cause Narrative

failure of the pilot to maintain clearance from the terrain, while en route to an apple orchard that he intended to spray. A factor relating to the accident was: the turbulent wind condition over the hills.

Event Information

Type of Event Accident
Event Date 10/10/1996
Event Day of the Week Thursday
Time of Event 845
Event Time Zone Pacific Daylight Time
Event City PROSSER
Event State WASHINGTON
Event Country --
Zipcode of the event site 99350
Event Date Year 1996
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 845 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 60
Weather Observation Facility ID PSC
Elevation of weather observation facility 407
Distance of event from weather observation facility (units?) 31
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 18000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 40
Air Temperature at event time (in degrees celsius) 16
Dew Point at event time (in degress fahrenheit) 9
Wind Direction (degrees magnetic) 330
Variable Wind Indicator Unknown
Wind Speed (knots) 5
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 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) 1515
NTSB Notification Source --
NTSB Notification Date Oct 10 1996 12:00AM
NTSB Notification Time 1000
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 8 2000 10:25AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N2331Y
NTSB Number SEA97LA010
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 Piper
Aircraft Model PA-36-300
Aircraft Series Identifier PA-36-300
Aircraft Serial Number 36-8160004
Certified Max Gross Weight 4450
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 Apr 1 1996 12:00AM
Airframe hours since last inspection 144
Airframe Hours 2373
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name MARVIN BONNY
Aircraft Owner Street Address RT 1, P.O. BOX 1552
Aircraft Owner City PROSSER
Aircraft Owner State WA
Aircraft Owner Country
Aircraft Owner Zipcode 99350
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 WXNG
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 S40
Departure City
Departure State WA
Departure Country
Departure Time 835
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 Cruise
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 --