Mcalester Airport
Aircraft Accident/Incident Report

Mcalester, Oklahoma 74501
Thursday, July 25, 1991 12:00 CDT

NTSB Narrative Summary Released at Completion of Accident

DURING A DAYLIGHT FLIGHT FROM ENNIS, OKLAHOMA, TO OSHKOSH, WISCONSIN, THE NON-INSTRUMENT RATED PILOT TRANSITIONED FROM VFR TO IFR FLIGHT. THE PRIVATE PILOT WAS FULLY AWARE OF THE FORECASTED INSTRUMENT CONDITIONS AND EXPRESSED HIS CONCERN AS TO THE WEATHER. HE DISCUSSED THE WEATHER WITH OTHER PILOTS, AND THEY RECOMMENDED THAT HE NOT PROCEED WITH THE FLIGHT UNTIL THE WEATHER FRONT HAD PASSED. THE AIRPLANE IMPACTED THE GROUND IN A LEVEL ATTITUDE WITH NO FORWARD MOVEMENT AND WITH EVIDENCE OF SOME ROTATION.

NTSB Probable Cause Narrative

THE PILOT'S ATTEMPTED FLIGHT INTO IMC AND HIS SUBSEQUENT LOSS OF CONTROL DUE TO SPATIAL DISORIENTATION.

Event Information

Type of Event Accident
Event Date 7/25/1991
Event Day of the Week Thursday
Time of Event 1200
Event Time Zone Central Daylight Time
Event City MCALESTER
Event State OKLAHOMA
Event Country --
Zipcode of the event site 74501
Event Date Year 1991
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport MCALESTER
Event Location Nearest Airport ID MLC
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 11
Degrees magnetic from airport 347
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1150 Central Daylight Time
Direction of event from weather observation facility (degrees) 167
Weather Observation Facility ID MLC
Elevation of weather observation facility 770
Distance of event from weather observation facility (units?) 11
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 900
Lowest Non-Ceiling Height 600
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) 6
Air Temperature at event time (in degrees celsius) 24
Dew Point at event time (in degress fahrenheit) 22
Wind Direction (degrees magnetic) 150
Variable Wind Indicator Unknown
Wind Speed (knots) 8
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
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 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 FAA
NTSB Docket Number (internal use) 1511
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 45338
Date of most recent change to record Dec 12 2000 10:31AM
User who most recently changed record dbo
Basic weather conditions Instrument Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N413P
NTSB Number FTW91DPJ03
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 GRIMM
Aircraft Model CAVALIER SA102.5
Aircraft Series Identifier CAVALIER S
Aircraft Serial Number SA1025-72215
Certified Max Gross Weight 1800
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? Yes
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 Unknown
Date of Last Inspection Jun 10 1991 12:00AM
Airframe hours since last inspection 79
Airframe Hours 2301
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site Yes
ELT Type --
Aircraft Owner Name GRIMM, LARRY W.
Aircraft Owner Street Address 2105 COUNTRY CLUB ROAD
Aircraft Owner City ENNIS
Aircraft Owner State TX
Aircraft Owner Country
Aircraft Owner Zipcode 75119
Operator is an individual? --
Operator Name GRIMM, LARRY W.
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 2105 COUNTRY CLUB ROAD
Operator City ENNIS
Operator State TX
Operator Country
Operator Zip code 75119
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 F41
Departure City ENNIS
Departure State TX
Departure Country
Departure Time 1000
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code OSH
Destination City OSHKOSH
Destination State WI
Destination Country
Specific Phase of Flight Descent
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 --