Individually Owned: 150,657
Corporate Owned: 137,281
Corvallis Muni. Airport
Aircraft Accident/Incident Report
Corvallis, Oregon 97333
Monday, September 2, 1991 12:30 PDT
NTSB Narrative Summary Released at Completion of Accident
IMMEDIATELY FOLLOWING TAKEOFF THE PILOT EXPERIENCED A LOSS OF CLIMB PERFORMANCE AND WAS UNABLE TO DETERMINE WHICH ENGINE WAS AFFECTED. HE CHOSE TO RETURN TO THE AIRPORT AND THEN EXECUTED A 180 DEGREE TURN BACK TO THE AIRPORT. UNABLE TO MAINTAIN ALTITUDE HE EXECUTED A FORCED LANDING IN AN OPEN FIELD AND THE RIGHT MAIN LANDING GEAR SEPARATED AS THE AIRCRAFT CROSSED A DITCH. SUBSEQUENT TEST RUN OF THE LEFT ENGINE REVEALED A DISCONNECTED AIR INDUCTION LINE WITH DEGRADED PERFORMANCE ABOVE 60% POWER. THE RIGHT ENGINE PROPELLER BLADES EXHIBITED AFTWARD TIP CURL AND POLISHING. THE PILOT REPORTED ONLY 35 HOURS OF TOTAL MULTI-ENGINE FLIGHT TIME OF WHICH ONLY 3 HOURS WERE IN THE CESSNA 310 AND NO CESSNA 310 FLIGHT TIME WITHIN THE PREVIOUS 90 DAYS.
NTSB Probable Cause Narrative
A DISCONNECTED AIR INDUCTION LINE, AND THE PILOT'S INFLIGHT DECISION TO EXECUTE A 180 DEGREE TURN BACK TO THE AIRPORT. HIS LACK OF EXPERIENCE IN MULTI-ENGINE AIRCRAFT, HIS OVERALL LACK OF FAMILIARITY AND LACK OF RECENT EXPERIENCE IN THE TYPE AIRCRAFT WERE FACTORS IN THE ACCIDENT.
Event Information
| Type of Event | Accident |
| Event Date | 9/2/1991 |
| Event Day of the Week | Monday |
| Time of Event | 1230 |
| Event Time Zone | Pacific Daylight Time |
| Event City | CORVALLIS |
| Event State | OREGON |
| Event Country | -- |
| Zipcode of the event site | 97333 |
| Event Date Year | 1991 |
| Event Date Month | 9 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | CORVALLIS MUNI. |
| Event Location Nearest Airport ID | CVO |
| Indicates whether the acc/inc occurred off or on an airport | On Airport |
| Distance from airport in statute miles | 0 |
| Degrees magnetic from airport | 0 |
| Airport Elevation | 246 |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Witness |
| Time of the weather observation | 0 |
| Direction of event from weather observation facility (degrees) | 0 |
| Weather Observation Facility ID | |
| Elevation of weather observation facility | 0 |
| Distance of event from weather observation facility (units?) | 0 |
| Time Zone of the weather observation | |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 0 |
| Lowest Non-Ceiling Height | 0 |
| Sky/Lowest/Cloud Conditions | Clear |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 10 |
| Air Temperature at event time (in degrees celsius) | 26 |
| Dew Point at event time (in degress fahrenheit) | -18 |
| Wind Direction (degrees magnetic) | 30 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 11 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Unknown |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | -- |
| Density Altitude (feet) | 0 |
| Intensity of Precipitation | Unknown |
| METAR weather report | -- |
| Event Highest Injury | None |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | 1 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 573 |
| NTSB Notification Source | -- |
| NTSB Notification Date | -- |
| NTSB Notification Time | 0 |
| Fiche Number and/or location -used to find docket information | 44478 |
| Date of most recent change to record | Dec 18 2002 11:28AM |
| User who most recently changed record | NTSB\GIUV |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N6788X |
| NTSB Number | SEA91LA231 |
| Missing Aircraft Indicator | N |
| 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 | 310F |
| Aircraft Series Identifier | 310F |
| Aircraft Serial Number | 3100088 |
| Certified Max Gross Weight | 5000 |
| 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 | 5 |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Unknown |
| Date of Last Inspection | -- |
| Airframe hours since last inspection | 0 |
| Airframe Hours | -- |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | JOHN R. NIENDORF |
| Aircraft Owner Street Address | 60241 TALL PINE |
| Aircraft Owner City | BEND |
| Aircraft Owner State | OR |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 97702 |
| Operator is an individual? | -- |
| Operator Name | JOHN R. NIENDORF |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | 60241 TALL PINE |
| Operator City | BEND |
| Operator State | OR |
| Operator Country | |
| Operator Zip code | 97702 |
| Operator Code | |
| Owner has at least one certificate | None |
| Other Operator of large aircraft? | No |
| Certified for Part 133 or 137 Operation | Unknown |
| 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 | Yes |
| Departure Airport Code | |
| Departure City | |
| Departure State | |
| Departure Country | |
| Departure Time | 1230 |
| Departure Time Zone | PDT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | S07 |
| Destination City | BEND |
| Destination State | OR |
| Destination Country | |
| Specific Phase of Flight | Maneuvering |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jan 2 2001 10:35AM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 35 |
| Runway Length | 5065 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |