Individually Owned: 150,657
Corporate Owned: 137,281
Colorado Spgs Municipal Airport
Aircraft Accident/Incident Report
Colorado Spgs, Colorado 80916
Friday, September 1, 1995 7:37 MDT
NTSB Narrative Summary Released at Completion of Accident
WITNESSES REPORTED THAT THE AIRPLANE DID NOT APPEAR TO BE CLIMBING NORMALLY AFTER TAKEOFF. THE PILOT RECALLED TURNING 'BACK TOWARDS THE RUNWAY.' THE PILOT-RATED PASSENGER RECALLED THERE HAD BEEN A POWER LOSS 'AS IF THE POWER HAD BEEN BROUGHT BACK TO IDLE.' SUBSEQUENTLY, THE LEFT WING DROPPED, AND THE AIRPLANE COLLIDED WITH TERRAIN. THE MIXTURE CONTROL WAS FOUND IN THE FULL RICH POSITION. A 4 INCH BY 3/8 INCH PIECE OF BAFFLE SEAL MATERIAL WAS FOUND NEXT TO THE VENTURI IN THE AIR INTAKE SIDE OF THE CARBURETOR THROAT, LODGED BETWEEN THE ACCELERATOR PUMP DISCHARGE TUBE AND THE POWER JET. THE UNDISTURBED CARBURETOR WAS FACTORY TESTED ON A SIMILAR ENGINE. THE ENGINE OPERATED 'EXTREMELY RICH.' ONE PILOT WHO HAD PREVIOUSLY FLOWN THE AIRPLANE SAID THE ENGINE DID NOT DEVELOP FULL POWER. ANOTHER PILOT-INSTRUCTOR SAID HE NOTICED THE ENGINE REQUIRED 'MORE LEANING' THAN OTHER CESSNA 172S HE HAD FLOWN. ELEVATION AT THE AIRPORT WAS 6172 FEET.
NTSB Probable Cause Narrative
BLOCKAGE OF THE CARBURETOR BY A PIECE OF FOREIGN MATERIAL, WHICH RESULTED IN A LOSS OF ENGINE POWER, AND FAILURE OF THE PILOT TO MAINTAIN AIRSPEED, WHICH RESULTED IN AN INADVERTENT STALL. THE HIGH DENSITY ALTITUDE AND THE PILOT'S FAILURE TO PROPERLY LEAN THE FUEL MIXTURE WERE POSSIBLE FACTORS.
Event Information
| Type of Event | Accident |
| Event Date | 9/1/1995 |
| Event Day of the Week | Friday |
| Time of Event | 737 |
| Event Time Zone | Mountain Daylight Time |
| Event City | COLORADO SPGS |
| Event State | COLORADO |
| Event Country | -- |
| Zipcode of the event site | 80916 |
| Event Date Year | 1995 |
| Event Date Month | 9 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | COLORADO SPGS MUNICIPAL |
| Event Location Nearest Airport ID | COS |
| Indicates whether the acc/inc occurred off or on an airport | On Airport |
| Distance from airport in statute miles | -- |
| Degrees magnetic from airport | -- |
| Airport Elevation | 6172 |
| Weather Briefing Completeness | Not pertinent |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 744 Mountain Daylight Time |
| Direction of event from weather observation facility (degrees) | 0 |
| Weather Observation Facility ID | COS |
| Elevation of weather observation facility | 6172 |
| Distance of event from weather observation facility (units?) | 0 |
| Time Zone of the weather observation | MDT |
| Lighting Conditions | Day |
| 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) | 10 |
| Air Temperature at event time (in degrees celsius) | 17 |
| Dew Point at event time (in degress fahrenheit) | 11 |
| Wind Direction (degrees magnetic) | 100 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 6 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Unknown |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 30 |
| Density Altitude (feet) | 7331 |
| Intensity of Precipitation | Unknown |
| METAR weather report | -- |
| Event Highest Injury | Serious |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | 2 |
| Injury Total All | 2 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 1055 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Sep 1 1995 12:00AM |
| NTSB Notification Time | 813 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Dec 7 2000 4:35PM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N4814F |
| NTSB Number | FTW95LA374 |
| 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 | 172N |
| Aircraft Series Identifier | 172N |
| Aircraft Serial Number | 17273085 |
| Certified Max Gross Weight | 2300 |
| 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 | Fixed |
| Aircraft, Type of Last Inspection | 100 Hour |
| Date of Last Inspection | Aug 24 1995 12:00AM |
| Airframe hours since last inspection | 7 |
| Airframe Hours | 8595 |
| ELT Installed | Yes |
| ELT Activated | Unknown |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | FALCON RENTALS |
| Aircraft Owner Street Address | 1947 AVIATION WAY |
| Aircraft Owner City | COLORADO SPGS |
| Aircraft Owner State | CO |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 80916 |
| 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 | Yes |
| Departure Point Same as Event | Yes |
| Departure Airport Code | COS |
| Departure City | |
| Departure State | |
| Departure Country | |
| Departure Time | 737 |
| Departure Time Zone | MDT |
| 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 | Emergency landing |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jan 2 2001 10:30AM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 35L |
| Runway Length | 11021 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |