Aircraft Accident/Incident Report

Rapelje, Montana 59067
Monday, May 13, 1985 15:15 MDT

NTSB Narrative Summary Released at Completion of Accident

THE ACFT SETTLED BACK TO GROUND CONTACT AFTER REACHING AN ALT (EST BY THE PLT) OF 60 FT AGL DURING TAKEOFF INITIAL CLIMB. THE PLT STATED THAT HE RECOGNIZED THE ACFT WAS SETTLING TOWARD THE GROUND & NOTICED A DISSIPATION OF AIRSPEED. THE PLT SAID THAT HE THEN 'ELECTED TO HOLD LOAD AS LONG AS POSSIBLE BEFORE DUMPING. I DUMPED THE LOAD 20 FT ABOVE THE POINT WHERE I KNEW I WAS GOING TO IMPACT THE GROUND.' THE DENSITY ALT WAS COMPUTED TO BE 4700 FT (ARPT FLE 3800 FT) BY THE IIC. IN THE AREA OF THE PLTS REPORT RESERVED FOR RECCOMMENDATIONS FOR PREVENTION (OF THIS ACCIDENT TYPE) THE PLT WROTE 'I BELIEVE THAT I GOT INTO A SITUATION KNOWN AS'REGION OF REVERSE COMMAND.'' THE DEFINITION OF THIS PHENOMENONDESCRIBES AN AERODYNAMIC SITUATION IN WHICH THE TOTAL DRAG OF THE ACFT INCREASES AS THE AIRSPEED DECREASES. THIS DRAG INCREASES TO A POINT WHERE INSUFFICIENT POWER IS AVAILABLE TO MAINTAIN ALTITUDE. THE PLT ALSO REPORTED THAT THE ACFT LOAD CONSISTED OF 200 GALLONS OF 2,4,D & ROUNDUP, IN ADDITION TO 55 GALLONS OF AVIATION FUEL ON BOARD.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 5/13/1985
Event Day of the Week Monday
Time of Event 1515
Event Time Zone Mountain Daylight Time
Event City RAPELJE
Event State MONTANA
Event Country --
Zipcode of the event site 59067
Event Date Year 1985
Event Date Month 5
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 Dawn
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 10000
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) 50
Air Temperature at event time (in degrees celsius) 18
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 220
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) --
Density Altitude (feet) 4700
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) 200
NTSB Notification Source --
NTSB Notification Date May 13 1985 12:00AM
NTSB Notification Time 1700
Fiche Number and/or location -used to find docket information 27466
Date of most recent change to record Jan 2 2001 9:15AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N44260
NTSB Number DEN85LA133
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 137: Agricultural
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name PIPER
Aircraft Model PA-36
Aircraft Series Identifier PA-36
Aircraft Serial Number 376460028
Certified Max Gross Weight 4800
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 Apr 3 1985 12:00AM
Airframe hours since last inspection 16
Airframe Hours 2050
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name MICHAEL VISSER
Aircraft Owner Street Address HCR #BOX,
Aircraft Owner City RAPELJE
Aircraft Owner State MT
Aircraft Owner Country
Aircraft Owner Zipcode
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
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 NA
Departure City
Departure State MT
Departure Country
Departure Time 1515
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 Descent
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:36AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 22
Runway Length 2600
Runway Width 50
Sight Seeing flight No
Air Medical Flight No
Medical Flight --