Individually Owned: 150,657
Corporate Owned: 137,281
Glacier Park Intl Airport
Aircraft Accident/Incident Report
Kalispell, Montana 59901
Sunday, October 1, 2006 18:00 MDT
NTSB Narrative Summary Released at Completion of Accident
While extending the landing gear the pilot heard a "loud bang" in the nose of the airplane. With both main landing gear having extended normally and the nose gear failing to extend, the pilot carried out the emergency landing gear checklist, but was unable to get the nose gear to extend. Air traffic control tower personnel subsequently confimred that the nose landing gear had not extended after the pilot did two flybys. The pilot then landed the airplane on both main landing gear, letting the aircraft settle onto its nose as airspeed bleed off, and it came to rest approximately 2,000 feet down the runway. A post-accident examination revealed that the adjusting bellcrank was fractured at the upper end where the fork bolt is normally inserted. The fracture features were consistent with overstress, and there was no evidence of any preexisting damage. The deformation and fractures appeared consistent with the bellcrank rotating relative to a stationary fork bolt during nose gear extension, such as could occur as a result of some obstruction or binding in the linkage forward of the bellcrank. The nature and cause of the binding in the linkages could not be determined.
NTSB Probable Cause Narrative
The fracture of the adjusting bellcrank in overstress due to binding in a linkage forward of the bell crank.
Event Information
| Type of Event | Accident |
| Event Date | 10/1/2006 |
| Event Day of the Week | Sunday |
| Time of Event | 1800 |
| Event Time Zone | Mountain Daylight Time |
| Event City | Kalispell |
| Event State | MONTANA |
| Event Country | -- |
| Zipcode of the event site | 59901 |
| Event Date Year | 2006 |
| Event Date Month | 10 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 481838N |
| Event Location Longitude | 1141518W |
| Event Location Airport | Glacier Park Intl Airport |
| Event Location Nearest Airport ID | GPI |
| 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 | 2977 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1755 Mountain Daylight Time |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | GPI |
| Elevation of weather observation facility | 2977 |
| Distance of event from weather observation facility (units?) | -- |
| Time Zone of the weather observation | MDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | -- |
| Sky/Lowest/Cloud Conditions | Clear |
| Sky Condition for Lowest Ceiling | None |
| 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) | -1 |
| Wind Direction (degrees magnetic) | -- |
| Variable Wind Indicator | Variable |
| Wind Speed (knots) | 3 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 29.83 |
| 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) | 21347 |
| NTSB Notification Source | Regional Operations Center |
| NTSB Notification Date | Oct 1 2006 12:00AM |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Apr 25 2007 2:54PM |
| User who most recently changed record | NTSB\lema |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | Helena, Montana |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N1920E |
| NTSB Number | SEA07LA002 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | -- |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Cessna |
| Aircraft Model | 340A |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 340A0669 |
| Certified Max Gross Weight | 5990 |
| 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 | 5 |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Mar 1 2006 12:00AM |
| Airframe hours since last inspection | 3.4 |
| Airframe Hours | 6648.2 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | Northwestern Tire Inc. |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | Columbia Falls |
| Aircraft Owner State | MT |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 59912 |
| Operator is an individual? | No |
| Operator Name | James D. Roth |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | -- |
| Operator City | Columbia Falls |
| Operator State | MT |
| Operator Country | USA |
| Operator Zip code | 59912 |
| 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) | Instructional |
| Second Pilot on Board | Yes |
| Departure Point Same as Event | Yes |
| Departure Airport Code | GPI |
| Departure City | Kalispell |
| Departure State | MT |
| Departure Country | USA |
| Departure Time | 1630 |
| Departure Time Zone | MDT |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | GPI |
| Destination City | Kalispell |
| Destination State | MT |
| Destination Country | USA |
| Specific Phase of Flight | Landing - roll |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Apr 13 2007 4:18PM |
| User who most recently changed record | NTSB\HAMG |
| Since inspection or accident | Last Inspection |
| Event Location Runway Number and Location | 02 |
| Runway Length | 9007 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |