Individually Owned: 150,657
Corporate Owned: 137,281
Dillingham Airport
Aircraft Accident/Incident Report
Dillingham, Alaska 99576
Wednesday, June 19, 2013 8:40 AKD
NTSB Narrative Summary Released at Completion of Accident
The airplane departed with 24 gallons of usable fuel, which normally allows for 4.5 hours of flight. About 2.5 hours into the flight, the engine started running rough. The pilot confirmed the mixture was rich and the carburetor heat was on. About 5 minutes later the engine quit and the pilot executed a forced landing to an area of tundra-covered terrain, substantially damaging the undercarriage, fuselage, and left wing strut. A postaccident examination by a Federal Aviation Administration inspector revealed that the carburetor had separated from the engine during the forced landing, and the gascolator drain had tundra embedded in it. The pilot stated that he had turned the fuel selector to the OFF position about 30 minutes after the landing.
The carburetor icing chart indicated the possibility of serious carburetor icing at the reported atmospheric conditions. The Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25A) states that first indication of carburetor ice in an airplane with a fixed-pitch propeller is a decrease in engine rpm. Additionally, it states that when conditions are conductive to carburetor icing that carburetor heat should be applied immediately and should be left ON until the pilot is certain all the ice has been removed. If ice is present applying partial heat or leaving heat on for an insufficient time might aggravate the situation.
Postaccident examination of the airframe and engine revealed no preimpact mechanical malfunctions or failure that would have precluded normal operation.
NTSB Probable Cause Narrative
A loss of engine power due to carburetor icing.
Event Information
| Type of Event | Accident |
| Event Date | 6/19/2013 |
| Event Day of the Week | Wednesday |
| Time of Event | 840 |
| Event Time Zone | -- |
| Event City | Dillingham |
| Event State | ALASKA |
| Event Country | -- |
| Zipcode of the event site | 99576 |
| Event Date Year | 2013 |
| Event Date Month | 6 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 590418N |
| Event Location Longitude | 1580222W |
| Event Location Airport | Dillingham Airport |
| Event Location Nearest Airport ID | PADL |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | 13 |
| Degrees magnetic from airport | -- |
| Airport Elevation | 82 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 845 Atlantic Daylight Time |
| Direction of event from weather observation facility (degrees) | 90 |
| Weather Observation Facility ID | PADL |
| Elevation of weather observation facility | 82 |
| Distance of event from weather observation facility (units?) | 13 |
| Time Zone of the weather observation | ADT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 6500 |
| Lowest Non-Ceiling Height | -- |
| Sky/Lowest/Cloud Conditions | -- |
| Sky Condition for Lowest Ceiling | Broken |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 15 |
| Air Temperature at event time (in degrees celsius) | 14 |
| Dew Point at event time (in degress fahrenheit) | 10 |
| Wind Direction (degrees magnetic) | 300 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 6 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 29.84 |
| 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) | 31839 |
| 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 | Sep 28 2013 3:02PM |
| User who most recently changed record | stam |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N620Y |
| NTSB Number | ANC13CA056 |
| 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 | CUB CRAFTERS INC |
| Aircraft Model | CC11-100 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | CC11-00005 |
| Certified Max Gross Weight | 1320 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | -- |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | 1 |
| Cabin Crew Seats | -- |
| Passenger Seats | -- |
| Total number of seats on the aircraft | 2 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Jun 16 2013 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | 487 |
| ELT Installed | Yes |
| ELT Activated | Yes |
| ELT Aided Location of Event Site | Yes |
| ELT Type | C126 |
| Aircraft Owner Name | Walla Walla University |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | College Place |
| Aircraft Owner State | WA |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 99324 |
| Operator is an individual? | No |
| Operator Name | Walla Walla University |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | -- |
| Operator City | College Place |
| Operator State | WA |
| Operator Country | USA |
| Operator Zip code | 99324 |
| 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) | Personal |
| Second Pilot on Board | -- |
| Departure Point Same as Event | No |
| Departure Airport Code | PAMR |
| Departure City | Anchorage |
| Departure State | AK |
| Departure Country | USA |
| Departure Time | 615 |
| Departure Time Zone | ADT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | PADL |
| Destination City | Dillingham |
| Destination State | AK |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Sep 28 2013 3:02PM |
| 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 | -- |