Aircraft Accident/Incident Report

Borup, Minnesota 56519
Tuesady, July 27, 1993 18:30 CDT

NTSB Narrative Summary Released at Completion of Accident

THE PILOT REPORTED THE AIRPLANE LOST ENGINE POWER DURING AN AERIAL APPLICATION SPRAY RUN. HE MADE A FORCED LANDING ON A SOFT FIELD AND THE AIRPLANE NOSED OVER. EXAMINATION OF THE ENGINE REVEALED THAT THE NUMBER SEVEN CYLINDER HEAD WAS CRACKED BETWEEN THE SPARK PLUGS.

NTSB Probable Cause Narrative

the loss of engine power due to a cracked cylinder head.

Event Information

Type of Event Accident
Event Date 7/27/1993
Event Day of the Week Tuesday
Time of Event 1830
Event Time Zone Central Daylight Time
Event City BORUP
Event State MINNESOTA
Event Country --
Zipcode of the event site 56519
Event Date Year 1993
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) 15
Air Temperature at event time (in degrees celsius) 32
Dew Point at event time (in degress fahrenheit) 16
Wind Direction (degrees magnetic) 110
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) --
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) 1662
NTSB Notification Source --
NTSB Notification Date Jul 30 1993 12:00AM
NTSB Notification Time 2053
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 11 2000 1:28PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N6637Q
NTSB Number CHI93LA303
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 Schweizer
Aircraft Model G167B
Aircraft Series Identifier G167B
Aircraft Serial Number 167
Certified Max Gross Weight 6500
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 May 10 1993 12:00AM
Airframe hours since last inspection 213
Airframe Hours 8385
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name ROBERT M. JOHNSON
Aircraft Owner Street Address RR 2 BOX 15
Aircraft Owner City ADA
Aircraft Owner State MN
Aircraft Owner Country
Aircraft Owner Zipcode 56510
Operator is an individual? --
Operator Name ROBERT M. JOHNSON
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address RR 2 BOX 15
Operator City ADA
Operator State MN
Operator Country
Operator Zip code 56510
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 No
Departure Airport Code
Departure City ADA
Departure State MN
Departure Country
Departure Time 1815
Departure Time Zone CST
Destination Same as Local Flt crash at destination city
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Maneuvering
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 --