Aircraft Accident/Incident Report

Dubois, Idaho 83423
Saturday, July 27, 1996 7:00 MDT

NTSB Narrative Summary Released at Completion of Accident

Immediately after takeoff, the pilot began a turn which took him within 75 feet of an operating agricultural irrigation spray device. This device was located 500 feet from the takeoff runway. The pilot reported that as he passed the device, the water stream from the device pivoted and shot a two-to-three-inch stream of water directly in front of the engine air intake of the turboprop-engine-equipped aircraft, resulting in engine flameout. This occurred at an altitude of about 75 feet above ground level. A forced landing was then made in a wheat field, where the airplane nosed over.

NTSB Probable Cause Narrative

failure of the pilot to remain clear of an irrigation spray device, which resulted in inadvertent water ingestion and flameout of the aircraft's turboprop engine. Factors relating to the accident were: the proximity of the irrigation spray device (close to the airstrip), insufficient time available to attempt an engine restart after the flameout, and high vegetation (wheat crop) in the forced landing area.

Event Information

Type of Event Accident
Event Date 7/27/1996
Event Day of the Week Saturday
Time of Event 700
Event Time Zone Mountain Daylight Time
Event City DUBOIS
Event State IDAHO
Event Country --
Zipcode of the event site 83423
Event Date Year 1996
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 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) 20
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 Not Gusting
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 FAA
NTSB Docket Number (internal use) 1508
NTSB Notification Source --
NTSB Notification Date Jul 27 1996 12:00AM
NTSB Notification Time 1402
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 8 2000 10:13AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N5390
NTSB Number SEA96LA172
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 Grumman-Schweizer
Aircraft Model G-164A
Aircraft Series Identifier G-164A
Aircraft Serial Number 1147
Certified Max Gross Weight 7500
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 100 Hour
Date of Last Inspection Jul 19 1996 12:00AM
Airframe hours since last inspection 24
Airframe Hours 4776
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name DENNIS RUCHERT
Aircraft Owner Street Address P.O. BOX 640
Aircraft Owner City POMEROY
Aircraft Owner State WA
Aircraft Owner Country
Aircraft Owner Zipcode 99347
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 WZAG
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 ID
Departure Country
Departure Time 700
Departure Time Zone MDT
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 Emergency landing
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 --