San Marcos Municipal Airport
Aircraft Accident/Incident Report

San Marcos, Texas 78666
Thursday, November 1, 2012 6:05 CDT

NTSB Narrative Summary Released at Completion of Accident

A fixed-base operator employee observed the pilot preflight his twin-engine airplane and then pulled the pilot’s airplane from the hangar. The employee gave the pilot directions to runway 17 but was unable to see him taxi to that location because of fog. The non-instrument-rated pilot subsequently took off in night instrument meteorological conditions with visibility less than 2 1/2 miles. The airplane crashed less than 1 mile south of the airport shortly after takeoff and witnesses saw and heard the resultant explosion. Video footage of the accident revealed that the airplane impacted the ground in a 45-degree nose-down attitude. Examination of the airplane and engines did not reveal any mechanical anomalies that would have precluded normal operation. Based on the wreckage distribution, low visibility, and the pilot’s lack of an instrument rating, the accident is consistent with the pilot’s loss of control due to spatial disorientation.

NTSB Probable Cause Narrative

The non-instrument-rated pilot’s decision to takeoff in night instrument meteorological conditions, which resulted in spatial disorientation and a loss of control.

Event Information

Type of Event Accident
Event Date 11/1/2012
Event Day of the Week Thursday
Time of Event 605
Event Time Zone Central Daylight Time
Event City San Marcos
Event State TEXAS
Event Country --
Zipcode of the event site 78666
Event Date Year 2012
Event Date Month 11
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 295246N
Event Location Longitude 0975259W
Event Location Airport San Marcos Municipal Airport
Event Location Nearest Airport ID KHYI
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 --
Airport Elevation 600
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 555 Central Daylight Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID KHYI
Elevation of weather observation facility 594
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation CDT
Lighting Conditions Night/Dark
Lowest Ceiling Height 400
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions --
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 2
Air Temperature at event time (in degrees celsius) 16
Dew Point at event time (in degress fahrenheit) 14
Wind Direction (degrees magnetic) 310
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 3
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.04
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report METAR KHYI 011055Z 31003KT 2 1/2SM OVC004 16/14 A3
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) 31203
NTSB Notification Source San Marcos Police
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record May 1 2013 4:17PM
User who most recently changed record reej
Basic weather conditions Instrument Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N10PM
NTSB Number CEN13FA039
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire Ground
Aircraft Explosion Ground
Aircraft Manufacturer's Full Name CESSNA
Aircraft Model 320E
Aircraft Series Identifier --
Aircraft Serial Number 320E-0087
Certified Max Gross Weight --
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats 2
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 6
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Feb 3 2011 12:00AM
Airframe hours since last inspection --
Airframe Hours --
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type Unknown
Aircraft Owner Name Clarence Schollmeyer
Aircraft Owner Street Address 790 Highway 22 N
Aircraft Owner City Killdear
Aircraft Owner State ND
Aircraft Owner Country USA
Aircraft Owner Zipcode 58640
Operator is an individual? No
Operator Name Clarence Schollmeyer
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 790 Highway 22 N
Operator City Killdear
Operator State ND
Operator Country USA
Operator Zip code 58640
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation --
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 KHYI
Departure City San Marcos
Departure State TX
Departure Country USA
Departure Time 603
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code --
Destination City --
Destination State --
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Mar 19 2013 5:50PM
User who most recently changed record linj-i
Since inspection or accident --
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --