Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Alpine, Wyoming 83128
Friday, November 18, 2005 9:00 MST
NTSB Narrative Summary Released at Completion of Accident
The civil air patrol (CAP) pilot was en route to administer a checkride to another CAP member. A state trooper had made a traffic stop on U.S. 26 at milepost 125. While he wrote the ticket, the violator saw an airplane fly past her position in a canyon following a river. She told the trooper what she had seen and said the airplane was below the highway and treetops. Shortly thereafter, the trooper located the inverted airplane submerged in the river. The trooper said there were no clouds in the sky and visibility was unlimited. Investigation revealed the airplane had struck and severed a 7/8-inch SSC (stainless steel conduit) EEIP (Extra Extra Improved Plow) braided cable. The cable was used by the United States Geological Survey (USGS) to monitor river flow and depth. The length of the cable (from support to support) was 324 feet, and had a "breaking strength" of 80,000 pounds. It was anchored in concrete blocks approximately 30 feet above the river's surface. Slack placed the cable about 25 feet above the surface at midspan (lowest point). Evidence indicates the airplane struck the cable at about the 107 foot mark. The cable broke about 6 feet from the anchor on the other side of the river.
NTSB Probable Cause Narrative
the pilot's intentional low level flight/maneuver. A contributing factor was his exercising poor judgment.
Event Information
| Type of Event | Accident |
| Event Date | 11/18/2005 |
| Event Day of the Week | Friday |
| Time of Event | 900 |
| Event Time Zone | Mountain Standard Time |
| Event City | Alpine |
| Event State | WYOMING |
| Event Country | -- |
| Zipcode of the event site | 83128 |
| Event Date Year | 2005 |
| Event Date Month | 11 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 431180N |
| Event Location Longitude | 1105353W |
| 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 | 855 Mountain Standard Time |
| Direction of event from weather observation facility (degrees) | 350 |
| Weather Observation Facility ID | JAC |
| Elevation of weather observation facility | 6451 |
| Distance of event from weather observation facility (units?) | 33 |
| Time Zone of the weather observation | MST |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 1400 |
| 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) | 10 |
| Air Temperature at event time (in degrees celsius) | -9 |
| Dew Point at event time (in degress fahrenheit) | -11 |
| Wind Direction (degrees magnetic) | 0 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 0 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.49 |
| 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 | 1 |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 20824 |
| NTSB Notification Source | Jackson Hole Sheriff's Departm |
| NTSB Notification Date | Nov 18 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 2007 9:40AM |
| User who most recently changed record | NTSB\johb |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | Casper, Wyoming |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N9928H |
| NTSB Number | DEN06GA017 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Public Use |
| 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 | 182R |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 18268119 |
| Certified Max Gross Weight | 3100 |
| 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 | -- |
| Date of Last Inspection | -- |
| Airframe hours since last inspection | -- |
| Airframe Hours | -- |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | -- |
| ELT Type | -- |
| Aircraft Owner Name | Civil Air Patrol, Inc. |
| Aircraft Owner Street Address | 105 S. Hansell St. |
| Aircraft Owner City | Maxwell Air Force Base |
| Aircraft Owner State | AL |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 36112 |
| Operator is an individual? | No |
| 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? | -- |
| 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) | Public Use |
| Second Pilot on Board | No |
| Departure Point Same as Event | No |
| Departure Airport Code | JAC |
| Departure City | Jackson |
| Departure State | WY |
| Departure Country | USA |
| Departure Time | 843 |
| Departure Time Zone | MST |
| Destination Same as Local Flt | -- |
| Destination Airport Code | AFO |
| Destination City | Afton |
| Destination State | WY |
| Destination Country | USA |
| Specific Phase of Flight | Maneuvering |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | May 10 2006 4:55PM |
| User who most recently changed record | BOWL |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | NA |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |