Individually Owned: 150,657
Corporate Owned: 137,281
North Las Vegas Airport
Aircraft Accident/Incident Report
Mt Charleston, Nevada 89124
Sunday, September 27, 2009 18:30 PDT
NTSB Narrative Summary Released at Completion of Accident
The pilot stated that he was orbiting at 50 knots about 100 feet above the 11,800-foot mean sea level (msl) mountain peak. As he flew the helicopter out of the leeward side of the peak, he encountered a downdraft. He maneuvered the helicopter toward a wide open valley that descended about 5,000 feet below. The downdraft pushed the helicopter into the face of the mountain, despite the pilot's application of full collective and descending flight into the valley. The helicopter impacted the mountain slope, caught fire, and tumbled. The pilot and his two passengers egressed the burning helicopter with minor injuries. The pilot hiked to the peak, and called for rescue using a cell phone. The calculated density altitude for the conditions was 13,918 feet. The published maximum operating density altitude for the helicopter was 14,000 feet. The pilot stated that the helicopter had no mechanical failures or malfunctions during the flight.
NTSB Probable Cause Narrative
The pilot's failure to maintain aircraft control and terrain clearance while maneuvering at a low altitude above high terrain. Contributing to the accident was a downdraft and high density altitude.
Event Information
| Type of Event | Accident |
| Event Date | 9/27/2009 |
| Event Day of the Week | Sunday |
| Time of Event | 1830 |
| Event Time Zone | Pacific Daylight Time |
| Event City | Mt Charleston |
| Event State | NEVADA |
| Event Country | -- |
| Zipcode of the event site | 89124 |
| Event Date Year | 2009 |
| Event Date Month | 9 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 361616N |
| Event Location Longitude | 1154145W |
| Event Location Airport | North Las Vegas |
| Event Location Nearest Airport ID | KVGT |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | 35 |
| Degrees magnetic from airport | -- |
| Airport Elevation | 2205 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1953 Pacific Daylight Time |
| Direction of event from weather observation facility (degrees) | 90 |
| Weather Observation Facility ID | KVGT |
| Elevation of weather observation facility | 2205 |
| Distance of event from weather observation facility (units?) | 35 |
| Time Zone of the weather observation | PDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | -- |
| Sky/Lowest/Cloud Conditions | Clear |
| 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) | 32 |
| Dew Point at event time (in degress fahrenheit) | -2 |
| Wind Direction (degrees magnetic) | 260 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 5 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 29.78 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | Weather conditions on scene as reported by the pil |
| Event Highest Injury | Minor |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | -- |
| Injury Total Minor | 1 |
| Injury Total None | 2 |
| Injury Total Serious | -- |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 26191 |
| NTSB Notification Source | FAA Operations Center |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Oct 21 2009 6:17PM |
| User who most recently changed record | coos |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N29LE |
| NTSB Number | WPR09CA470 |
| 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 | Ground |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | ROBINSON HELICOPTER COMPANY |
| Aircraft Model | R44 II |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 10269 |
| Certified Max Gross Weight | 2500 |
| Aircraft Category | Helicopter |
| 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 | Jun 19 2009 12:00AM |
| Airframe hours since last inspection | 94 |
| Airframe Hours | 2492 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | BANK OF UTAH TRUSTEE |
| Aircraft Owner Street Address | 200 E SOUTH TEMPLE STE 210 |
| Aircraft Owner City | SALT LAKE CITY |
| Aircraft Owner State | UT |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 84111-1346 |
| Operator is an individual? | No |
| Operator Name | Mojave Aviation |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | -- |
| Operator City | Henderson |
| Operator State | NV |
| Operator Country | USA |
| Operator Zip code | 89052 |
| 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 | No |
| Departure Airport Code | KVGT |
| Departure City | Las Vegas |
| Departure State | NV |
| Departure Country | USA |
| Departure Time | 1754 |
| Departure Time Zone | PDT |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | KVGT |
| Destination City | Las Vegas |
| Destination State | NV |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Oct 21 2009 6:17PM |
| User who most recently changed record | coos |
| 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 | -- |