Individually Owned: 150,657
Corporate Owned: 137,281
Kwigillingok Airport
Aircraft Accident/Incident Report
Kwigillingok, Alaska 99622
Wednesday, December 21, 2011 10:20 AST
NTSB Narrative Summary Released at Completion of Accident
The pilot reported that he was flying in visual meteorological conditions for most of the flight. As he approached the airport, he inadvertently entered an area of instrument meteorological conditions that resulted in a buildup of ice on the airframe and windscreen. He attempted to make a 180-degree turn to exit the conditions but was unable to maintain sufficient airspeed for flight, and the airplane descended and collided with terrain. The impact resulted in substantial damage to the fuselage, empennage, and wings.
NTSB Probable Cause Narrative
The pilot’s decision to continue visual flight into instrument meteorological conditions with moderate icing, which resulted in structural icing and an aerodynamic stall.
Event Information
| Type of Event | Accident |
| Event Date | 12/21/2011 |
| Event Day of the Week | Wednesday |
| Time of Event | 1020 |
| Event Time Zone | Atlantic Standard Time |
| Event City | Kwigillingok |
| Event State | ALASKA |
| Event Country | -- |
| Zipcode of the event site | 99622 |
| Event Date Year | 2011 |
| Event Date Month | 12 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 595235N |
| Event Location Longitude | 1631007W |
| Event Location Airport | Kwigillingok |
| Event Location Nearest Airport ID | PAGG |
| 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 | 1008 Atlantic Daylight Time |
| Direction of event from weather observation facility (degrees) | 262 |
| Weather Observation Facility ID | PAKI |
| Elevation of weather observation facility | -- |
| Distance of event from weather observation facility (units?) | 26 |
| Time Zone of the weather observation | ADT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 500 |
| Lowest Non-Ceiling Height | 0 |
| Sky/Lowest/Cloud Conditions | Partial Obscuration |
| Sky Condition for Lowest Ceiling | Obscured |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 1 |
| Air Temperature at event time (in degrees celsius) | -6 |
| Dew Point at event time (in degress fahrenheit) | -7 |
| Wind Direction (degrees magnetic) | -- |
| Variable Wind Indicator | Variable |
| Wind Speed (knots) | -- |
| Wind Velocity Indicator | Light and Variable |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 29.55 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | -- |
| 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 | -- |
| Injury Total Serious | -- |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 29676 |
| NTSB Notification Source | Operator |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Feb 23 2012 11:21AM |
| User who most recently changed record | stam |
| Basic weather conditions | Instrument Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N6480H |
| NTSB Number | ANC12CA016 |
| 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 | -- |
| Aircraft Manufacturer's Full Name | CESSNA |
| Aircraft Model | 207A |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 20700540 |
| Certified Max Gross Weight | -- |
| 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 | 7 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Dec 11 2011 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | 11446 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | C91-A |
| Aircraft Owner Name | BETHEL LEASING LLC |
| Aircraft Owner Street Address | 4335 SOUTHPARK BLUFF DR |
| Aircraft Owner City | ANCHORAGE |
| Aircraft Owner State | AK |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 99516-4820 |
| Operator is an individual? | No |
| Operator Name | Flight Alaska Inc |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | -- |
| Operator City | Anchorage |
| Operator State | AK |
| Operator Country | USA |
| Operator Zip code | 99507 |
| Operator Code | YAAA |
| Owner has at least one certificate | Yes - certificate holder |
| 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 | Non-scheduled |
| Indicates Domestic or International Flight | Domestic |
| Operator carrying Pax/Cargo/Mail | |
| Type of Flying (Per_Bus / Primary) | -- |
| Second Pilot on Board | No |
| Departure Point Same as Event | No |
| Departure Airport Code | PABE |
| Departure City | Bethel |
| Departure State | AK |
| Departure Country | USA |
| Departure Time | 932 |
| Departure Time Zone | AST |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | PAGG |
| Destination City | Kwigillingok |
| Destination State | AK |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Mar 8 2012 9:16AM |
| User who most recently changed record | broda |
| 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 | -- |