Aircraft Accident/Incident Report

Tillar, Arkansas 71670
Thursday, August 27, 1987 9:07 CDT

NTSB Narrative Summary Released at Completion of Accident

THE PILOT STATED THAT THE PROP RPM BECAME ERRATIC. ON APPROACH, THE PROP RAN COMPLETELY OUT OF CONTROL, CAUSING THE AIRCRAFT TO NOSE DOWN INTO A PLOWED FIELD JUST SHORT OF THE LANDING AREA. THE A/C HIT ON THE MAIN LANDING GEAR, BROKE THEM OFF, THEN IT NOSED OVER. INSPECTION OF THE PROPELLER FOUND THAT ALL OF THE DOWEL PINS THAT FIX THE DOME STATIONARY TO THE HUB ASSEMBLY HAD FAILED. THIS FAILURE WAS THE RESULT OF THE BARREL SHIMS BEING PARTIALLY INSTALLED ALONG THE EDGE OF THE DOME INSTEAD OF FLAT AGAINST THE DOME SHELF IN THE HUB. THE RESULT WAS THE BLADES BECOMING DISENGAGED FROM THE GEARING.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 8/27/1987
Event Day of the Week Thursday
Time of Event 907
Event Time Zone Central Daylight Time
Event City TILLAR
Event State ARKANSAS
Event Country --
Zipcode of the event site 71670
Event Date Year 1987
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport
Event Location Nearest Airport ID AR04
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 1
Degrees magnetic from airport 150
Airport Elevation 0
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1351 Central Standard Time
Direction of event from weather observation facility (degrees) 140
Weather Observation Facility ID PBF
Elevation of weather observation facility 206
Distance of event from weather observation facility (units?) 40
Time Zone of the weather observation CST
Lighting Conditions Day
Lowest Ceiling Height 10000
Lowest Non-Ceiling Height 1500
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 7
Air Temperature at event time (in degrees celsius) 28
Dew Point at event time (in degress fahrenheit) 23
Wind Direction (degrees magnetic) 22
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) 30
Density Altitude (feet) 1450
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None --
Injury Total Serious 1
Injury Total All 1
Investigating Agency FAA
NTSB Docket Number (internal use) 2119
NTSB Notification Source --
NTSB Notification Date Aug 27 1987 12:00AM
NTSB Notification Time 1015
Fiche Number and/or location -used to find docket information 35709
Date of most recent change to record Dec 13 2000 2:44PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N3159X
NTSB Number MKC87DPG03
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 AIR TRACTOR
Aircraft Model AT-301
Aircraft Series Identifier AT-301
Aircraft Serial Number 301-0475
Certified Max Gross Weight 5000
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 Mar 6 1987 12:00AM
Airframe hours since last inspection 607
Airframe Hours 2807
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name DELTA SPRAYERS, INC.
Aircraft Owner Street Address P.O. BOX 98
Aircraft Owner City TILLAR
Aircraft Owner State AR
Aircraft Owner Country
Aircraft Owner Zipcode 71670
Operator is an individual? --
Operator Name ROBERT R. JACOBS.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address BOS 82, HWYY. 65
Operator City TILLAR
Operator State AR
Operator Country
Operator Zip code 71670
Operator Code 2JBG
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 No
Departure Airport Code AR04
Departure City TILLAR
Departure State AR
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 Descent
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 0
Runway Width 0
Sight Seeing flight No
Air Medical Flight No
Medical Flight --