Aircraft Accident/Incident Report

Mcintosh, South Dakota 57641
Tuesady, December 21, 1993 19:30 MST

NTSB Narrative Summary Released at Completion of Accident

THE PILOT OBTAINED FOUR WEATHER BRIEFINGS PRIOR TO DEPARTING ON A NIGHT CROSS COUNTRY FLIGHT. THE FSS BRIEFER TOLD THE PILOT VFR FLIGHT WAS NOT RECOMMENDED DUE TO A FAST MOVING COLD FRONT WITH SNOW AND LOW CEILINGS WHICH WAS APPROACHING THE PILOT'S DESTINATION. DURING THE FIRST UPDATE, THE PILOT WAS TOLD THAT THERE WERE NO FLIGHT PRECAUTIONS FOR HIS ROUTE, BUT THE FORECAST ADVISED OF LIGHT SNOW AND FOUR MILES VISIBILITY. DURING A SECOND BRIEFING THE PILOT WAS ADVISED THAT A SATELLITE SHOWED A '... PULSE OF MOISTURE ...' WAS WEST OF HIS COURSE. THE PILOT LATER TOLD ATC HE WAS DESCENDING FROM HIS PRESENT ALTITUDE BECAUSE HE WAS IN SNOW SHOWERS AND WAS HAVING DIFFICULTY SEEING THE GROUND. THE PILOT DID NOT RESPOND TO ATC'S RADIO CALL. THE PILOT'S LOGBOOK SHOWED A TOTAL OF .4 HOUR OF INSTRUMENT FLIGHT TIME OBTAINED APPROXIMATELY TWO YEARS BEFORE THE ACCIDENT FLIGHT.

NTSB Probable Cause Narrative

was continued VFR flight into IMC and the failure to maintain clearance with the terrain. Factors associated with this accident were an inaccurate weather evaluation by the pilot, snow and the rising terrain.

Event Information

Type of Event Accident
Event Date 12/21/1993
Event Day of the Week Tuesday
Time of Event 1930
Event Time Zone Mountain Standard Time
Event City MCINTOSH
Event State SOUTH DAKOTA
Event Country --
Zipcode of the event site 57641
Event Date Year 1993
Event Date Month 12
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 Full
Investigator's weather source Weather Observation Facility
Time of the weather observation 1952 Mountain Standard Time
Direction of event from weather observation facility (degrees) 160
Weather Observation Facility ID PIR
Elevation of weather observation facility 1742
Distance of event from weather observation facility (units?) 85
Time Zone of the weather observation MST
Lighting Conditions Night/Dark
Lowest Ceiling Height 2800
Lowest Non-Ceiling Height 1900
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) 5
Air Temperature at event time (in degrees celsius) -4
Dew Point at event time (in degress fahrenheit) -6
Wind Direction (degrees magnetic) 250
Variable Wind Indicator Unknown
Wind Speed (knots) 7
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) --
Intensity of Precipitation Moderate
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 1
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 2113
NTSB Notification Source --
NTSB Notification Date Dec 21 1993 12:00AM
NTSB Notification Time 1030
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 11 2000 1:47PM
User who most recently changed record dbo
Basic weather conditions Instrument Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N8003P
NTSB Number CHI94LA056
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed VFR
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name PIPER
Aircraft Model PA-24-250
Aircraft Series Identifier PA-24-250
Aircraft Serial Number 24-3243
Certified Max Gross Weight 2800
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 4
Number of Engines 1
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Apr 15 1993 12:00AM
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name GERALD S. OLMSTEAD
Aircraft Owner Street Address P.O. BOX 95
Aircraft Owner City BERRYTON
Aircraft Owner State KS
Aircraft Owner Country
Aircraft Owner Zipcode 66409
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 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 No
Departure Airport Code 00V
Departure City CO. SPRINGS
Departure State CO
Departure Country
Departure Time 1540
Departure Time Zone MST
Destination Same as Local Flt --
Destination Airport Code MOT
Destination City MINOT
Destination State ND
Destination Country
Specific Phase of Flight Descent
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 --