Individually Owned: 150,657
Corporate Owned: 137,281
King Salmon Airport
Aircraft Accident/Incident Report
King Salmon, Alaska 99613
Thursday, July 15, 2010 11:37 AKD
NTSB Narrative Summary Released at Completion of Accident
The pilot reported that the weather at his destination airport had deteriorated to a 500-700 foot ceiling with 10 miles of visibility. He was instructed by air traffic control personnel to hold outside the airport's controlled airspace, and to expect a special visual flight rules clearance in 30 minutes. Throughout the hold, the pilot cycled the carburetor heat intermittently on and off. After about 25 minutes holding, he decided to reposition to a location between his destination and alternate airport. As he started to fly towards this new position, the engine began losing rpm and running rough. He applied carburetor heat and full mixture, but the engine continued to run rough. He made a forced landing along the edge of a stream, during which the right wing and fuselage received substantial damage. About the time of the accident, the destination airport reported both the temperature and dew point as 07 degrees Celsius. According to the Federal Aviation Administration Carburetor Icing Probability Chart, an aircraft encountering those ambient conditions could expect serious carburetor icing while at cruise power. Examination of the airplane and engine revealed no mechanical failures or malfunctions that would have precluded normal operation.
NTSB Probable Cause Narrative
The pilot's failure to use continuous carburetor heat while operating in carburetor icing conditions, resulting in carburetor ice and subsequent partial loss of engine power.
Event Information
| Type of Event | Accident |
| Event Date | 7/15/2010 |
| Event Day of the Week | Thursday |
| Time of Event | 1137 |
| Event Time Zone | -- |
| Event City | King Salmon |
| Event State | ALASKA |
| Event Country | -- |
| Zipcode of the event site | 99613 |
| Event Date Year | 2010 |
| Event Date Month | 7 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 584542N |
| Event Location Longitude | 1563630W |
| Event Location Airport | King Salmon |
| Event Location Nearest Airport ID | PAKN |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | 5 |
| Degrees magnetic from airport | -- |
| Airport Elevation | 73 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1154 Atlantic Daylight Time |
| Direction of event from weather observation facility (degrees) | 180 |
| Weather Observation Facility ID | PAKN |
| Elevation of weather observation facility | 73 |
| Distance of event from weather observation facility (units?) | 5 |
| Time Zone of the weather observation | ADT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 500 |
| 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) | 10 |
| Air Temperature at event time (in degrees celsius) | 7 |
| Dew Point at event time (in degress fahrenheit) | 7 |
| Wind Direction (degrees magnetic) | 210 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 8 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.2 |
| 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 | 4 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 28618 |
| 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 | Jul 1 2011 6:29PM |
| User who most recently changed record | stam |
| Basic weather conditions | Instrument Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N5126H |
| NTSB Number | ANC10LA061 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | No |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | PIPER |
| Aircraft Model | PA-14 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 14-135 |
| Certified Max Gross Weight | 1850 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | -- |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | 1 |
| Cabin Crew Seats | -- |
| Passenger Seats | 3 |
| Total number of seats on the aircraft | 4 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Jun 18 2010 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | 4408 |
| ELT Installed | Yes |
| ELT Activated | Yes |
| ELT Aided Location of Event Site | No |
| ELT Type | C126 |
| Aircraft Owner Name | BRADBURY DOUGLAS |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | NORTH POLE |
| Aircraft Owner State | AK |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 99705-6281 |
| Operator is an individual? | No |
| Operator Name | BRADBURY DOUGLAS |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | -- |
| Operator City | NORTH POLE |
| Operator State | AK |
| Operator Country | USA |
| Operator Zip code | 99705-6281 |
| 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 | KAIG |
| Departure City | Igiugig |
| Departure State | AK |
| Departure Country | USA |
| Departure Time | 1030 |
| Departure Time Zone | ADT |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | PAKN |
| Destination City | King Salmon |
| Destination State | AK |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jul 1 2011 6:25PM |
| User who most recently changed record | stam |
| Since inspection or accident | Last Inspection |
| Event Location Runway Number and Location | N/A |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |