Individually Owned: 150,657
Corporate Owned: 137,281
Walker Field Airport
Aircraft Accident/Incident Report
Grand Junction, Colorado 81501
Saturday, July 16, 2005 20:30 MDT
NTSB Narrative Summary Released at Completion of Accident
The instructor pilot said he was on short final when he encountered wind shear and turbulence. He initiated a go-around, failed to maintain control of the airplane, lost airspeed, stalled, and subsequently impacted terrain. According to the tower controller, the airplane was cleared to land on runway 11. While on short final, the airplane encountered a wind gust or downdraft, and the flight instructor reported to the controller he was initiating a go-around. Approximately 200 feet agl, the airplane entered an uncontrolled descent and impacted the runway surface. At 2032, the automated surface observing system (ASOS) reported the wind from 210 degrees at 9 knots, gusting to 37 knots. At 2027, ASOS reported a peak wind at 310 degrees at 37 knots. Cumulonimbus clouds, virga, and wind shear were reported in the area at the time of the accident
NTSB Probable Cause Narrative
the pilot's failure to maintain aircraft control during aborted landing and failure to maintain airspeed, which resulted in an inadvertent stall. A contributing factor was the encounter with wind shear during final approach and landing.
Event Information
| Type of Event | Accident |
| Event Date | 7/16/2005 |
| Event Day of the Week | Saturday |
| Time of Event | 2030 |
| Event Time Zone | Mountain Daylight Time |
| Event City | Grand Junction |
| Event State | COLORADO |
| Event Country | -- |
| Zipcode of the event site | 81501 |
| Event Date Year | 2005 |
| Event Date Month | 7 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 390720N |
| Event Location Longitude | 1083136W |
| Event Location Airport | Walker Field Airport |
| Event Location Nearest Airport ID | GJT |
| 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 | 4858 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 832 Mountain Daylight Time |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | GJT |
| Elevation of weather observation facility | 4858 |
| Distance of event from weather observation facility (units?) | -- |
| Time Zone of the weather observation | MDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | 7000 |
| 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) | 35 |
| Dew Point at event time (in degress fahrenheit) | 1 |
| Wind Direction (degrees magnetic) | 210 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 9 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Gusting |
| Wind Gust (knots) | 37 |
| Altimeter Setting at event time (in. Hg) | 29.92 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | -- |
| Event Highest Injury | Serious |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| 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) | 18939 |
| NTSB Notification Source | FAA Comm Ctr |
| NTSB Notification Date | Jul 16 2005 12:00AM |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Jan 31 2006 7:35AM |
| User who most recently changed record | NTSB\JOHB |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | Salt Lake City, Utah |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N735AC |
| NTSB Number | DEN05LA112 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | No |
| Damage | Destroyed |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Cessna |
| Aircraft Model | 182Q |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 18265262 |
| Certified Max Gross Weight | 2950 |
| 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 | 4 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | 100 Hour |
| Date of Last Inspection | Feb 1 2005 12:00AM |
| Airframe hours since last inspection | 18 |
| Airframe Hours | 5118 |
| ELT Installed | Yes |
| ELT Activated | -- |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | Larry G. Kempton Jr. |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | Grand Junction |
| Aircraft Owner State | CO |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 81505 |
| Operator is an individual? | No |
| Operator Name | -- |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 607 26th Rd. |
| Operator City | Grand Junction |
| Operator State | CO |
| Operator Country | USA |
| Operator Zip code | 81505 |
| Operator Code | -- |
| Owner has at least one certificate | None |
| Other Operator of large aircraft? | -- |
| 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 | Yes |
| Departure Airport Code | GJT |
| Departure City | Grand Junction |
| Departure State | CO |
| Departure Country | USA |
| Departure Time | 1945 |
| Departure Time Zone | MDT |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | GJT |
| Destination City | -- |
| Destination State | -- |
| Destination Country | -- |
| Specific Phase of Flight | Landing - aborted |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Oct 20 2005 4:33PM |
| User who most recently changed record | MCBM |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 11 |
| Runway Length | 10501 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |