Individually Owned: 150,657
Corporate Owned: 137,281
Rogue Valley International Airport
Aircraft Accident/Incident Report
Medford, Oregon 97504
Tuesady, June 18, 2002 19:50 PDT
NTSB Narrative Summary Released at Completion of Accident
After takeoff, the pilot discovered that the right main gear had not retracted. He unsuccessfully re-cycled the gear twice, and then deactivated the landing gear system in order to prevent porting of hydraulic fluid. Prior to landing, the pilot lowered the gear and insured that all of the landing gear green (down and locked) lights were illuminated, and that the gear in-transit light was extinguished. Although the touchdown and initial part of the landing roll were uneventful, as the aircraft decelerated to about 55 knots, the right main gear slowly collapsed. A post-accident inspection of the right main gear determined that the roll pin that holds the forward gear pivot pin in its slot in the gear trunnion had fractured, allowing the pivot pin to work its way loose over time, and ultimately resulting in a misaligned gear trunnion that jammed during the retract cycle. The jamming during the attempted retraction exacerbated the misalignment, and that, along with the looseness of the pivot pin, created a situation where a low load force was able to cause the gear to collapse during the landing roll. An inspection of the pin by the NTSB metallurgical laboratory revealed that there was no evidence of fatigue along the fracture surface, and that the fracture features were consistent with overstress. The investigation revealed no evidence of unusual wear or damage in the area of the pivot pin or its phenolic bearing, nor was there a record of any recent event that would have exposed the gear pivot mechanism to an overload situation.
NTSB Probable Cause Narrative
The overstress failure, for undetermined reasons, of the right main landing gear pivot pin roll pin, leading to the misalignment of the gear trunnion and the collapse of the right main gear during the landing roll.
Event Information
| Type of Event | Accident |
| Event Date | 6/18/2002 |
| Event Day of the Week | Tuesday |
| Time of Event | 1950 |
| Event Time Zone | Pacific Daylight Time |
| Event City | Medford |
| Event State | OREGON |
| Event Country | -- |
| Zipcode of the event site | 97504 |
| Event Date Year | 2002 |
| Event Date Month | 6 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 422218N |
| Event Location Longitude | 1225219W |
| Event Location Airport | Rogue Valley International |
| Event Location Nearest Airport ID | MFR |
| 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 | 1330 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Pilot |
| Time of the weather observation | |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | -- |
| Elevation of weather observation facility | -- |
| Distance of event from weather observation facility (units?) | -- |
| Time Zone of the weather observation | -- |
| 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) | 5 |
| Wind Direction (degrees magnetic) | 10 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 11 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.07 |
| 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) | 14097 |
| NTSB Notification Source | FAA Operations Center |
| NTSB Notification Date | Jun 18 2002 12:00AM |
| NTSB Notification Time | 2000 |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Sep 30 2003 9:55AM |
| User who most recently changed record | NTSB\MONR |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | Portland FSDO |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N564AC |
| NTSB Number | SEA02LA095 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | Yes |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Cessna |
| Aircraft Model | 441 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 441-0147 |
| Certified Max Gross Weight | 9925 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | U.S. Registered/U.S. Soil |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | -- |
| Cabin Crew Seats | -- |
| Passenger Seats | -- |
| Total number of seats on the aircraft | 11 |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | 100 Hour |
| Date of Last Inspection | Jun 13 2002 12:00AM |
| Airframe hours since last inspection | 53 |
| Airframe Hours | 9803 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | Erikson Air-Crane, Inc. |
| Aircraft Owner Street Address | PO Box 3247 |
| Aircraft Owner City | Central Point |
| Aircraft Owner State | OR |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 97502-001 |
| Operator is an individual? | No |
| Operator Name | -- |
| Operator Same as Owner? | Yes |
| 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) | Business |
| Second Pilot on Board | No |
| Departure Point Same as Event | No |
| Departure Airport Code | TVL |
| Departure City | So. Lake Tahoe |
| Departure State | CA |
| Departure Country | USA |
| Departure Time | 1820 |
| Departure Time Zone | PDT |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | MFR |
| Destination City | Medford |
| Destination State | OR |
| Destination Country | USA |
| Specific Phase of Flight | Landing - roll |
| Report sent to ICAO? | No |
| Evacuation occurred | No |
| Date of most recent change to record | Jul 16 2003 3:42PM |
| User who most recently changed record | STAM |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | 32 |
| Runway Length | 8798 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |