Individually Owned: 150,657
Corporate Owned: 137,281
Northway Airport
Aircraft Accident/Incident Report
Northway, Alaska 99764
Thursday, July 12, 2007 12:53 AKD
NTSB Narrative Summary Released at Completion of Accident
The airline transport pilot was landing a twin-engine retractable wheel airplane on a gravel-covered runway while on a cross-country personal flight. He said that after an uneventful touchdown, the right main landing gear collapsed, followed by the left main landing gear, and finally the nose landing gear. The airplane sustained substantial damage to the wings and fuselage. A postaccident inspection of the airplane by an FAA airworthiness inspector disclosed a fractured rod end assembly, which was part of the landing gear extension and retraction system. The FAA inspector noted that he was unable to determine whether the fractured rod end assembly was a factor in the landing gear collapse, or if the rod end fractured as a result of the landing gear collapse.
NTSB Probable Cause Narrative
The collapse of the landing gear during the landing roll for an undetermined reason.
Event Information
| Type of Event | Accident |
| Event Date | 7/12/2007 |
| Event Day of the Week | Thursday |
| Time of Event | 1253 |
| Event Time Zone | -- |
| Event City | Northway |
| Event State | ALASKA |
| Event Country | -- |
| Zipcode of the event site | 99764 |
| Event Date Year | 2007 |
| Event Date Month | 7 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 625710N |
| Event Location Longitude | 1415544W |
| Event Location Airport | Northway |
| Event Location Nearest Airport ID | ORT |
| Indicates whether the acc/inc occurred off or on an airport | On Airport |
| Distance from airport in statute miles | -- |
| Degrees magnetic from airport | -- |
| Airport Elevation | 1716 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1253 Atlantic Daylight Time |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | ORT |
| Elevation of weather observation facility | 1716 |
| Distance of event from weather observation facility (units?) | -- |
| Time Zone of the weather observation | ADT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 15000 |
| Lowest Non-Ceiling Height | 5500 |
| Sky/Lowest/Cloud Conditions | Few |
| Sky Condition for Lowest Ceiling | Broken |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 10 |
| Air Temperature at event time (in degrees celsius) | 19 |
| Dew Point at event time (in degress fahrenheit) | 6 |
| 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) | 29.82 |
| 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) | 23343 |
| NTSB Notification Source | ANC FAA, ROC |
| NTSB Notification Date | Jul 12 2007 12:00AM |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Mar 31 2008 11:52AM |
| User who most recently changed record | NTSB\johb |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | Fairbanks |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N820GW |
| NTSB Number | ANC07LA066 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | VFR |
| Flight plan Was Activated? | Yes |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Beech |
| Aircraft Model | 58 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | TH-13 |
| Certified Max Gross Weight | 5400 |
| 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 | 6 |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Jul 1 2007 12:00AM |
| Airframe hours since last inspection | 29 |
| Airframe Hours | 4497.4 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | Promenfly Corp. |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | Virginia |
| Aircraft Owner State | VA |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 23454 |
| Operator is an individual? | No |
| Operator Name | Glenn R. Carwelll |
| Operator Same as Owner? | No |
| 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 | 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 | No |
| Departure Point Same as Event | No |
| Departure Airport Code | YXY |
| Departure City | WHITEHORSE YT |
| Departure State | -- |
| Departure Country | CA |
| Departure Time | 1045 |
| Departure Time Zone | YDT |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | ORT |
| Destination City | Northway |
| Destination State | AK |
| Destination Country | USA |
| Specific Phase of Flight | Landing - roll |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Mar 24 2008 6:05PM |
| User who most recently changed record | STAM |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | 23 |
| Runway Length | 5100 |
| Runway Width | 100 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |