Aircraft Accident/Incident Report

Calhan, Colorado 80808
Monday, August 23, 2010 10:30 MDT

NTSB Narrative Summary Released at Completion of Accident

Friends and family members reported that the two pilots departed with the objective of completing a flight review for the commercial pilot. According to radar data, the airplane was maneuvering in the practice area, when the airplane was lost on radar. The airplane impacted open terrain in a wings level attitude consistent with a flat spin. An examination of the airplane, its related systems, and both engines revealed no anomalies. The commercial pilot and certified flight instructor (CFI) were both experienced in the airplane. Medical and pathological examination of the commercial pilot and CFI revealed no medical or toxicological issues that would have precluded either the commercial pilot or the CFI from operating the airplane in a safe manner prior to the accident.

NTSB Probable Cause Narrative

The pilots'failure to maintain control of the airplane which resulted in an inadvertent stall and spin.

Event Information

Type of Event Accident
Event Date 8/23/2010
Event Day of the Week Monday
Time of Event 1030
Event Time Zone Mountain Daylight Time
Event City Calhan
Event State COLORADO
Event Country --
Zipcode of the event site 80808
Event Date Year 2010
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 385839N
Event Location Longitude 1041623W
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 --
Investigator's weather source Weather Observation Facility
Time of the weather observation 954 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 225
Weather Observation Facility ID KCOS
Elevation of weather observation facility 6187
Distance of event from weather observation facility (units?) 25
Time Zone of the weather observation MDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 11000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 26
Dew Point at event time (in degress fahrenheit) 11
Wind Direction (degrees magnetic) 60
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 17
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.24
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
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) 28555
NTSB Notification Source FAA ANM ROC
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Aug 10 2011 11:34AM
User who most recently changed record johb
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N896H
NTSB Number CEN10FA493
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 None
Aircraft Explosion None
Aircraft Manufacturer's Full Name CESSNA
Aircraft Model 310C
Aircraft Series Identifier --
Aircraft Serial Number 35996
Certified Max Gross Weight --
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 5
Number of Engines 2
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Aug 3 2009 12:00AM
Airframe hours since last inspection 5
Airframe Hours 4376
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name BOECKING WILLIAM D
Aircraft Owner Street Address 3307 SPRINGRIDGE CIRCLE
Aircraft Owner City COLORADO SPRINGS
Aircraft Owner State CO
Aircraft Owner Country USA
Aircraft Owner Zipcode 80906
Operator is an individual? Yes
Operator Name BOECKING WILLIAM D
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 3307 SPRINGRIDGE CIRCLE
Operator City COLORADO SPRINGS
Operator State CO
Operator Country USA
Operator Zip code 80906
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) Instructional
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code KFLY
Departure City Colorado Spring
Departure State CO
Departure Country USA
Departure Time 1000
Departure Time Zone MDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code KFLY
Destination City Colorado Spring
Destination State CO
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jul 26 2011 12:10PM
User who most recently changed record johb
Since inspection or accident Time of Accident
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --