Individually Owned: 150,657
Corporate Owned: 137,281
Crescent City Airport
Aircraft Accident/Incident Report
Crescent City, California 95531
Tuesady, March 4, 2003 22:45 PST
NTSB Narrative Summary Released at Completion of Accident
The right main landing gear scissors separated during the landing roll, resulting in a ground loop and the collapse of the right main landing gear. Post accident examination of the right landing gear scissors assembly revealed that a hinge bolt assembly had failed. Recent maintenance had reportedly been performed on both main landing gears. A Cessna Service Information Letter, ME83-37, dated November 23, 1983, recommended main landing gear scissor washer replacement for airplanes with serial numbers that included the accident airplane. The Service Letter recommended replacement of the two outer washers on the main landing gear scissor link for improved service life, and main gear wheel alignment retension. The Service Letter called for the installation of a new AN175-20 scissor bolt, and one 5045018-2 washer under the head of the bolt for each main landing gear scissors. Post accident examination of the scissor assembly revealed two damaged washers under the head of the scissors bolt, with diameters only slightly larger than the extreme hex points of the bolt head. The two washers were significantly smaller than the recommended washers, and were extruded, or bent towards, the scissor bolt head, which allowed the upper and lower scissor assembly to disconnect.
NTSB Probable Cause Narrative
The separation of the upper and lower right main landing gear scissor links due to improper maintenance, which resulted in a ground loop, and the collapse of the right main landing gear during the landing roll.
Event Information
| Type of Event | Accident |
| Event Date | 3/4/2003 |
| Event Day of the Week | Tuesday |
| Time of Event | 2245 |
| Event Time Zone | Pacific Standard Time |
| Event City | Crescent City |
| Event State | CALIFORNIA |
| Event Country | -- |
| Zipcode of the event site | 95531 |
| Event Date Year | 2003 |
| Event Date Month | 3 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 414649N |
| Event Location Longitude | 1241411W |
| Event Location Airport | Crescent City |
| Event Location Nearest Airport ID | CEC |
| 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 | 57 |
| Weather Briefing Completeness | Not pertinent |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 2256 Pacific Daylight Time |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | CEC |
| Elevation of weather observation facility | 57 |
| Distance of event from weather observation facility (units?) | -- |
| Time Zone of the weather observation | PDT |
| Lighting Conditions | Night |
| 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) | 8 |
| Air Temperature at event time (in degrees celsius) | 9 |
| Dew Point at event time (in degress fahrenheit) | 8 |
| Wind Direction (degrees magnetic) | 350 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 12 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Gusting |
| Wind Gust (knots) | 19 |
| Altimeter Setting at event time (in. Hg) | 30.02 |
| 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 | 3 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 16914 |
| NTSB Notification Source | FAA |
| NTSB Notification Date | Mar 4 2003 12:00AM |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Dec 28 2004 12:45PM |
| User who most recently changed record | NTSB\JOHB |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | WP-OAK-FSDO |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N26533 |
| NTSB Number | LAX03LA106 |
| 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 | Cessna |
| Aircraft Model | 421C |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 421C0686 |
| Certified Max Gross Weight | 7450 |
| 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 | 8 |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Feb 20 2003 12:00AM |
| Airframe hours since last inspection | 13 |
| Airframe Hours | 5886.3 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | WESTLOG INC. |
| Aircraft Owner Street Address | 202 DALE RUPERT RD |
| Aircraft Owner City | CRESCENT CITY |
| Aircraft Owner State | CA |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 95531 |
| 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) | Positioning |
| Second Pilot on Board | No |
| Departure Point Same as Event | No |
| Departure Airport Code | MFR |
| Departure City | Medford |
| Departure State | OR |
| Departure Country | USA |
| Departure Time | -- |
| Departure Time Zone | PST |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | CEC |
| Destination City | Crescent City |
| Destination State | CA |
| Destination Country | USA |
| Specific Phase of Flight | Landing |
| Report sent to ICAO? | No |
| Evacuation occurred | No |
| Date of most recent change to record | Nov 5 2004 5:03PM |
| User who most recently changed record | COOS |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 35 |
| Runway Length | 5002 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |