Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Ilimana, Alaska 99606
Sunday, March 12, 2006 13:20 AST
NTSB Narrative Summary Released at Completion of Accident
The commercial helicopter pilot was flying one passenger on an on-demand, Title 14, CFR Part 135 air taxi flight to a remote site in an area surrounded by snow-covered, flat, featureless terrain. Low fog, reduced visibility, and flat light conditions reduced his ability to discern a horizon or terrain. He said that the visibility deteriorated to about 1 or 2 miles, and he was unable to discern any topographic features on the snow-covered terrain, and he elected to make a precautionary landing to wait for better visibility. After about 10 minutes, he decided to continue to his destination. Just after takeoff, flat light conditions again reduced his ability to recognize any topographical features on the snow-covered terrain. He reported that while he was attempting to establish a stable hover, and erroneously believing that the helicopter was not moving, the helicopter's right skid struck the snow-covered terrain. The helicopter rolled to the right, and the main rotor blades struck the ground. As the main rotor blades struck the ground, the helicopter rolled onto its right side. The helicopter sustained substantial damage to the fuselage, tail boom assembly, and the main and tail rotor drive systems. The pilot reported that there were no preaccident mechanical anomalies with the helicopter.
NTSB Probable Cause Narrative
The pilot's continued flight into adverse weather conditions, and his spatial disorientation and loss of control during a subsequent landing attempt. Factors associated with the accident are flat light and whiteout conditions, fog, and snow-covered terrain.
Event Information
| Type of Event | Accident |
| Event Date | 3/12/2006 |
| Event Day of the Week | Sunday |
| Time of Event | 1320 |
| Event Time Zone | Atlantic Standard Time |
| Event City | Ilimana |
| Event State | ALASKA |
| Event Country | -- |
| Zipcode of the event site | 99606 |
| Event Date Year | 2006 |
| Event Date Month | 3 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 594800N |
| Event Location Longitude | 1551908W |
| 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 | Pilot |
| Time of the weather observation | |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | -- |
| Elevation of weather observation facility | -- |
| Distance of event from weather observation facility (units?) | -- |
| Time Zone of the weather observation | -- |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 200 |
| Lowest Non-Ceiling Height | 100 |
| Sky/Lowest/Cloud Conditions | Scattered |
| Sky Condition for Lowest Ceiling | Overcast |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 3 |
| Air Temperature at event time (in degrees celsius) | -5 |
| Dew Point at event time (in degress fahrenheit) | -- |
| Wind Direction (degrees magnetic) | -- |
| Variable Wind Indicator | -- |
| Wind Speed (knots) | -- |
| Wind Velocity Indicator | Calm |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | -- |
| 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) | 20468 |
| NTSB Notification Source | ANC FAA, ROC |
| NTSB Notification Date | Mar 12 2006 12:00AM |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Oct 31 2006 8:45AM |
| User who most recently changed record | NTSB\JOHB |
| Basic weather conditions | Instrument Meteorological Cond |
| FAA District Office | Anchorage FSDO |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N7528Z |
| NTSB Number | ANC06LA025 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 135: Air Taxi & Commuter |
| Type of Flight Plan filed | Company VFR |
| Flight plan Was Activated? | Yes |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Robinson |
| Aircraft Model | R44 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 10384 |
| 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 | Feb 1 2006 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | 1360 |
| ELT Installed | Yes |
| ELT Activated | Yes |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | Pollux Aviation LTD |
| Aircraft Owner Street Address | 6205 E. Beechcraft Road |
| Aircraft Owner City | Wasilla |
| Aircraft Owner State | AK |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 99654 |
| 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 | -- |
| Other Operator of large aircraft? | -- |
| Certified for Part 133 or 137 Operation | External Load |
| Operator Certificate Number | -- |
| Indicates whether an air carrier operation was scheduled or not | Non-scheduled |
| Indicates Domestic or International Flight | Domestic |
| Operator carrying Pax/Cargo/Mail | Passenger Only |
| Type of Flying (Per_Bus / Primary) | -- |
| Second Pilot on Board | No |
| Departure Point Same as Event | No |
| Departure Airport Code | ILI |
| Departure City | ILIAMNA |
| Departure State | AK |
| Departure Country | USA |
| Departure Time | 1305 |
| Departure Time Zone | AST |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | ILI |
| Destination City | Ilimana |
| Destination State | AK |
| Destination Country | USA |
| Specific Phase of Flight | Maneuvering |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Aug 2 2006 6:12PM |
| User who most recently changed record | STAM |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | NA |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |