Sitzman Farm Airport
Aircraft Accident/Incident Report

Tappen, North Dakota 58487
Thursday, September 10, 1998 19:10 CDT

NTSB Narrative Summary Released at Completion of Accident

The pilot said that the airplane lifted off normally, but then wanted to set back down. The pilot lowered the flaps to 15-degrees in hopes of keeping the airplane from settling. Lowering flaps did not seem to help. The pilot said that he then went for the dump handle, but could not find it initially. When he did find it, the airplane impacted into a swamp just off the end of the 3,000 foot long airstrip. Examination of the wreckage revealed no anomalies. According to the Takeoff Distance Chart in the PZL M18B Aircraft Flight Manual, an airplane with atomizers and zero flaps extended, weighing 10,700 pounds, at a temperature of 33 degrees Centigrade, and zero headwind, will require a takeoff distance of approximately 3,600 feet.

NTSB Probable Cause Narrative

the pilot's improper preflight preparation resulting in the airplane exceeding the available airstrip distance during takeoff. A factor contributing to this accident was the swamp.

Event Information

Type of Event Accident
Event Date 9/10/1998
Event Day of the Week Thursday
Time of Event 1910
Event Time Zone Central Daylight Time
Event City TAPPEN
Event State NORTH DAKOTA
Event Country --
Zipcode of the event site 58487
Event Date Year 1998
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport SITZMAN FARM
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 1
Degrees magnetic from airport 270
Airport Elevation 1750
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1855 Central Daylight Time
Direction of event from weather observation facility (degrees) 255
Weather Observation Facility ID BIS
Elevation of weather observation facility 1677
Distance of event from weather observation facility (units?) 43
Time Zone of the weather observation CDT
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) 10
Air Temperature at event time (in degrees celsius) 32
Dew Point at event time (in degress fahrenheit) 17
Wind Direction (degrees magnetic) 340
Variable Wind Indicator Unknown
Wind Speed (knots) 7
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) 4
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) 702
NTSB Notification Source --
NTSB Notification Date Sep 10 1998 12:00AM
NTSB Notification Time 2241
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 11 2000 11:45AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N4450M
NTSB Number CHI98LA337
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 WSK PZL Mielec
Aircraft Model PZL M18B
Aircraft Series Identifier PZL M18B
Aircraft Serial Number 1Z027-06
Certified Max Gross Weight 11970
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 --
Airframe hours since last inspection 206
Airframe Hours 206
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name KRATZ AERIAL AG SERVICE
Aircraft Owner Street Address 7342 COUNTY ROAD 60
Aircraft Owner City LAMOURE
Aircraft Owner State ND
Aircraft Owner Country
Aircraft Owner Zipcode 58458
Operator is an individual? --
Operator Name MICHAEL KRATZ
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 10025 81ST STREET SE
Operator City FULLERTON
Operator State ND
Operator Country
Operator Zip code 58441
Operator Code GL21
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 1910
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 Takeoff
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 27
Runway Length 3000
Runway Width 50
Sight Seeing flight No
Air Medical Flight No
Medical Flight --