Individually Owned: 151,845
Corporate Owned: 143,699
Jean Airport
Aircraft Accident/Incident Report
Jean, Nevada 89124
Wednesday, May 25, 2005 9:45 PDT
NTSB Narrative Summary Released at Completion of Accident
During a 180-degree practice autorotation, the main rotor rpm decayed and the helicopter tail boom collided with a boundary fence short of the intended landing spot. As the helicopter rolled out of the 180-degree turn onto final approach, the certified flight instructor and student both noticed that the main rotor rpm had decayed. The student then increased the throttle in attempt to go around and the instructor took the controls. At this point the instructor noticed that the main rotor rpm was at 92 percent and the helicopter was descending. The CFI was unable to stop the decent rate, and the helicopter collided with the fence short of the intended touchdown point and then impacted the terrain. The instructor and student both stated that the helicopter and engine had no mechanical failures or malfunctions during the flight. The density altitude was calculated to be about 5,590 feet.
NTSB Probable Cause Narrative
the student's failure to maintain adequate main rotor rpm when performing a180-degree autorotation, and the instructor's inadequate supervision and delayed remedial action. A factor in the accident was the high density altitude.
Event Information
| Type of Event | Accident |
| Event Date | 5/25/2005 |
| Event Day of the Week | Wednesday |
| Time of Event | 945 |
| Event Time Zone | Pacific Daylight Time |
| Event City | Jean |
| Event State | NEVADA |
| Event Country | -- |
| Zipcode of the event site | 89124 |
| Event Date Year | 2005 |
| Event Date Month | 5 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 354606N |
| Event Location Longitude | 1151946W |
| Event Location Airport | Jean Airport |
| Event Location Nearest Airport ID | 0L7 |
| 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 | 2832 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 956 Pacific Daylight Time |
| Direction of event from weather observation facility (degrees) | 25 |
| Weather Observation Facility ID | KLAS |
| Elevation of weather observation facility | 2181 |
| Distance of event from weather observation facility (units?) | 21 |
| 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) | 33 |
| Dew Point at event time (in degress fahrenheit) | 2 |
| Wind Direction (degrees magnetic) | 60 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 7 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 29.93 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | -- |
| Event Highest Injury | None |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | 2 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 18301 |
| NTSB Notification Source | FAA |
| NTSB Notification Date | May 25 2005 12:00AM |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Sep 13 2005 12:54PM |
| User who most recently changed record | NTSB\JOHB |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | WP-LAS-FSDO |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N192SH |
| NTSB Number | LAX05CA188 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | Unknown |
| Flight plan Was Activated? | -- |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Robinson |
| Aircraft Model | R-22 Beta II |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 3459 |
| Certified Max Gross Weight | 1370 |
| 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 | -- |
| 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 | -- |
| ELT Activated | -- |
| ELT Aided Location of Event Site | -- |
| ELT Type | -- |
| Aircraft Owner Name | Jan Air, LLC |
| Aircraft Owner Street Address | 549 Mercey Springs Rd. |
| Aircraft Owner City | Los Banos |
| Aircraft Owner State | CA |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 93635 |
| Operator is an individual? | No |
| Operator Name | Silver State Helicopters |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 500 E. Cheyenne |
| Operator City | N. Las Vegas |
| Operator State | NV |
| Operator Country | USA |
| Operator Zip code | 89030 |
| 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 | -- |
| Departure Point Same as Event | No |
| Departure Airport Code | KVGT |
| Departure City | Las Vegas |
| Departure State | NV |
| Departure Country | USA |
| Departure Time | -- |
| Departure Time Zone | -- |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | 0L7 |
| Destination City | Jean |
| Destination State | NV |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jun 16 2005 2:51PM |
| User who most recently changed record | COOS |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 2L |
| Runway Length | 4600 |
| Runway Width | 75 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |