Aircraft Accident/Incident Report

Donnybrook, North Dakota 58734
Saturday, August 4, 1990 19:50 CDT

NTSB Narrative Summary Released at Completion of Accident

THE PILOT AND PASSENGER HAD TAKEN OFF FROM A GRAVEL ROAD FOR A LOCAL PLEASURE FLIGHT. THE AIRPLANE SUBSEQUENTLY IMPACTED THE SIDE OF A STEEP HILLSIDE APRX 100 FT BELOW A RIDGE LINE. IMPACT WAS NOSE DOWN, AND THE AIRPLANE HAD MOVED SLIGHTLY REARWARD FROM THE INITIAL IMPACT POINT.

NTSB Probable Cause Narrative

THE PILOT'S FAILURE TO MAINTAIN AIRSPEED WHILE MANEUVERING IN HILLY TERRAIN. CONTRIBUTING FACTORS WERE THE PILOT'S FAILURE TO MAINTAIN ADEQUATE ALTITUDE AND THE SURROUNDING STEEPLY RISING TERRAIN.

Event Information

Type of Event Accident
Event Date 8/4/1990
Event Day of the Week Saturday
Time of Event 1950
Event Time Zone Central Daylight Time
Event City DONNYBROOK
Event State NORTH DAKOTA
Event Country --
Zipcode of the event site 58734
Event Date Year 1990
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
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 Weather Observation Facility
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID MOT
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Dusk
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) 20
Air Temperature at event time (in degrees celsius) 22
Dew Point at event time (in degress fahrenheit) 6
Wind Direction (degrees magnetic) 360
Variable Wind Indicator Unknown
Wind Speed (knots) 8
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 0
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal 2
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 1301
NTSB Notification Source --
NTSB Notification Date Aug 4 1990 12:00AM
NTSB Notification Time 2130
Fiche Number and/or location -used to find docket information 42613
Date of most recent change to record Dec 12 2000 5:15PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N10094
NTSB Number CHI90FA214
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name CESSNA
Aircraft Model 150L
Aircraft Series Identifier 150L
Aircraft Serial Number 15074790
Certified Max Gross Weight 1600
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 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection May 1 1990 12:00AM
Airframe hours since last inspection 185
Airframe Hours 3866
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name PIETSCM FLYING SERVICE
Aircraft Owner Street Address BOX 14, MINOT INT'S AIRPORT
Aircraft Owner City MINOT
Aircraft Owner State ND
Aircraft Owner Country
Aircraft Owner Zipcode 58701
Operator is an individual? --
Operator Name PIETSCH FLYING SERVICE
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address MINOT INTERNATIONAL AIRPORT
Operator City MINOT
Operator State ND
Operator Country
Operator Zip code 58701
Operator Code
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Personal
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 0
Departure Time Zone
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 Maneuvering
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 --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --