Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Healy, Alaska 99743
Friday, August 3, 2001 12:50 AKD
NTSB Narrative Summary Released at Completion of Accident
The certificated commerical pilot was flying the second airplane in a flight of two airplanes, within an area of mountainous terrain. Shortly after takeoff he lost sight of the first airplane, but was able to maintain radio contact. As the flight progressed, it began to rain, accompanied by diminished visibility and low ceilings. He then became disoriented to his exact position, and he mistakenly turned into a small valley. The pilot said that once he entered the valley, the terrain began rising, so he initiated a climb. The valley became too narrow to turn around, and the clouds began to close around the airplane as he continued to climb. The terrain continued to rise, and he noticed his airspeed was decreasing. Shortly thereafter, the airplane collided with rising terrain, and sustained substantial damage.
NTSB Probable Cause Narrative
The pilot's continued flight into adverse weather conditions after becoming lost/disoriented. Factors in the accident were rising terrain, a blind/box canyon, low clouds, and rain.
Event Information
| Type of Event | Accident |
| Event Date | 8/3/2001 |
| Event Day of the Week | Friday |
| Time of Event | 1250 |
| Event Time Zone | -- |
| Event City | Healy |
| Event State | ALASKA |
| Event Country | -- |
| Zipcode of the event site | 99743 |
| Event Date Year | 2001 |
| Event Date Month | 8 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 634200N |
| Event Location Longitude | 1481200W |
| 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 | Full |
| 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 | 0 |
| 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) | 0.25 |
| Air Temperature at event time (in degrees celsius) | 13 |
| Dew Point at event time (in degress fahrenheit) | -- |
| Wind Direction (degrees magnetic) | -- |
| Variable Wind Indicator | -- |
| Wind Speed (knots) | -- |
| Wind Velocity Indicator | Light and Variable |
| Wind Gust Indicator | Unknown |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | -- |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | Moderate |
| 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 | 6 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 11694 |
| NTSB Notification Source | |
| NTSB Notification Date | Aug 3 2001 12:00AM |
| NTSB Notification Time | 1345 |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Jun 3 2002 12:16PM |
| User who most recently changed record | NTSB\MONR |
| Basic weather conditions | Instrument Meteorological Cond |
| FAA District Office | Anchorage FSDO |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N9794M |
| NTSB Number | ANC01LA099 |
| 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 | Cessna |
| Aircraft Model | 207 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 20700730 |
| Certified Max Gross Weight | 3800 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | U.S. Registered/U.S. Soil |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | -- |
| Cabin Crew Seats | -- |
| Passenger Seats | -- |
| Total number of seats on the aircraft | 6 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | 100 Hour |
| Date of Last Inspection | Jul 21 2001 12:00AM |
| Airframe hours since last inspection | 60.6 |
| Airframe Hours | 6438 |
| ELT Installed | Yes |
| ELT Activated | Yes |
| ELT Aided Location of Event Site | Yes |
| ELT Type | -- |
| Aircraft Owner Name | Ronald D. Rosso |
| Aircraft Owner Street Address | P.O.Box 82 |
| Aircraft Owner City | Denali National Park |
| Aircraft Owner State | AK |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 99755 |
| Operator is an individual? | No |
| Operator Name | Denali Air Taxi, Inc. |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | P.O.Box 82 |
| Operator City | Denali Park, |
| Operator State | AK |
| Operator Country | USA |
| Operator Zip code | 99755 |
| Operator Code | DLIA |
| Owner has at least one certificate | -- |
| 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 | 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 | Yes |
| Departure Airport Code | HRR |
| Departure City | Healy |
| Departure State | AK |
| Departure Country | USA |
| Departure Time | 1250 |
| Departure Time Zone | ADT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | AK06 |
| Destination City | Denali Airstrip |
| Destination State | AK |
| Destination Country | USA |
| Specific Phase of Flight | Cruise |
| Report sent to ICAO? | No |
| Evacuation occurred | No |
| Date of most recent change to record | Apr 4 2002 3:26PM |
| User who most recently changed record | STAM |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | -- |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |