Individually Owned: 151,845
Corporate Owned: 143,699
Portland Airport
Aircraft Accident/Incident Report
Portland, Oregon 97218
Thursday, March 20, 2008 10:26 PDT
NTSB Narrative Summary Released at Completion of Accident
The pilot reported that when he was preparing to land at his destination, he found that the right main landing gear failed to extend. The pilot diverted back to the originating airport. Maintenance personnel discussed the problem with the pilot and various remedial actions were tried without success. The pilot declared an emergency, and landed with the right main gear retracted. During the recovery efforts, the airplane was jacked up in order to extend the right main landing gear, which locked in place. The airplane was then towed to a hangar. Examination revealed that the upper pivot bolt had not been installed through the pivot hole in the upper end of the actuating rod during recent maintenance. The mechanic who did the repair and the inspector who signed off the repair did not detect the discrepancy.
NTSB Probable Cause Narrative
The failure of company maintenance personnel to install the upper pivot bolt through the pivot hole in the upper end of the landing gear actuating rod, and the company maintenance inspector's inadequate inspection of the work performed.
Event Information
| Type of Event | Accident |
| Event Date | 3/20/2008 |
| Event Day of the Week | Thursday |
| Time of Event | 1026 |
| Event Time Zone | Pacific Daylight Time |
| Event City | Portland |
| Event State | OREGON |
| Event Country | -- |
| Zipcode of the event site | 97218 |
| Event Date Year | 2008 |
| Event Date Month | 3 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 453519N |
| Event Location Longitude | 1223627W |
| Event Location Airport | Portland |
| Event Location Nearest Airport ID | PDX |
| 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 | -- |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 948 Pacific Daylight Time |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | PDX |
| Elevation of weather observation facility | 30 |
| Distance of event from weather observation facility (units?) | -- |
| Time Zone of the weather observation | PDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 2400 |
| Lowest Non-Ceiling Height | 1800 |
| Sky/Lowest/Cloud Conditions | Scattered |
| 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) | 8 |
| Dew Point at event time (in degress fahrenheit) | 3 |
| Wind Direction (degrees magnetic) | 200 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 9 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.18 |
| 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 | 1 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 23461 |
| NTSB Notification Source | FAA |
| NTSB Notification Date | Mar 20 2008 12:00AM |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Apr 30 2008 1:28PM |
| User who most recently changed record | NTSB\johb |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | Portland FSDO |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N4098A |
| NTSB Number | LAX08LA080 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 135: Air Taxi & Commuter |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | Yes |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Piper |
| Aircraft Model | PA-31-350 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 31-8152200 |
| Certified Max Gross Weight | 7000 |
| 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 | 2 |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | AAIP |
| Date of Last Inspection | Mar 1 2008 12:00AM |
| Airframe hours since last inspection | 3 |
| Airframe Hours | 16547 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | UAS Transervices, Inc. |
| Aircraft Owner Street Address | 3280 E. Foothill Blvd |
| Aircraft Owner City | Pasadena |
| Aircraft Owner State | CA |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 91107 |
| Operator is an individual? | No |
| Operator Name | Ameriflight LLC |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 4700 Empire Av, HGR 1 |
| Operator City | Burbank |
| Operator State | CA |
| Operator Country | USA |
| Operator Zip code | 91505 |
| Operator Code | JIKA |
| Owner has at least one certificate | -- |
| 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 | Non-scheduled |
| Indicates Domestic or International Flight | Domestic |
| Operator carrying Pax/Cargo/Mail | Cargo |
| Type of Flying (Per_Bus / Primary) | -- |
| Second Pilot on Board | No |
| Departure Point Same as Event | Yes |
| Departure Airport Code | PDX |
| Departure City | Portland |
| Departure State | OR |
| Departure Country | USA |
| Departure Time | 745 |
| Departure Time Zone | PDT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | RBG |
| Destination City | Roseburg |
| Destination State | OR |
| Destination Country | USA |
| Specific Phase of Flight | Landing - roll |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Apr 12 2008 3:58PM |
| User who most recently changed record | STAM |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | 03 |
| Runway Length | 7001 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |