Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Guistine, California 95322
Sunday, November 19, 2000 12:00 PST
NTSB Narrative Summary Released at Completion of Accident
The airplane nosed over during a forced landing after the pilot encountered smoke in the cockpit. Oil was spewing onto the windshield, the engine was losing oil pressure, and smoke was filling the cockpit. The pilot made an emergency landing on an abandoned dirt strip that was about 1,400 feet long. However, the airplane overran the runway into a ravine and overturned. Maintenance that had been completed the day before the accident included an oil change and replacement of the crankshaft nose seal; a run-up had revealed no oil leaks. The engine sustained no visible damage resulting from the forced landing, and visual examination revealed no evidence of catastrophic mechanical malfunction or fire. A significant amount of engine oil emanated from the nose cowling where the engine and propeller flange protruded. The oil film proceeded aft onto the windscreen as well as the horizontal and vertical stabilizers. The spark plugs, cylinder walls, valves, and pistons exhibited no mechanical damage. Oil lines within the engine compartment were secure on their fittings. The propeller governor was secure and not leaking. The oil filter and oil filter converter plate were properly installed and secure. There were no visible contaminates in the oil filter or suction screen. The propeller was removed, but there was no evidence of oil leakage at the propeller seal. The crankshaft oil seal was out of its bore and resting on the crankshaft. One oil ring was cracked, but no compression rings were broken. There was evidence of overheating from running lean. The breather hose had been mounted over the motor mount rather than under it. In this location the hose was pinched when the cowling was installed. This plugged the breather hose and pressurized the case, forcing oil out through the front seal.
NTSB Probable Cause Narrative
Maintenance personnel misrouted the crankcase breather hose so that it was pinched when the cowling was installed. This pressurized the crankcase displacing the oil seal and forcing oil out of the engine. A factor was the unsuitable terrain encountered during the forced landing.
Event Information
| Type of Event | Accident |
| Event Date | 11/19/2000 |
| Event Day of the Week | Sunday |
| Time of Event | 1200 |
| Event Time Zone | Pacific Standard Time |
| Event City | GUISTINE |
| Event State | CALIFORNIA |
| Event Country | -- |
| Zipcode of the event site | 95322 |
| Event Date Year | 2000 |
| Event Date Month | 11 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 311344N |
| Event Location Longitude | 1212227W |
| Event Location Airport | -- |
| Event Location Nearest Airport ID | -- |
| 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 | Not pertinent |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1150 Pacific Standard Time |
| Direction of event from weather observation facility (degrees) | 93 |
| Weather Observation Facility ID | RHV |
| Elevation of weather observation facility | 133 |
| Distance of event from weather observation facility (units?) | 22 |
| Time Zone of the weather observation | PST |
| Lighting Conditions | Day |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | 25000 |
| Sky/Lowest/Cloud Conditions | Scattered |
| 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) | 13 |
| Dew Point at event time (in degress fahrenheit) | 4 |
| Wind Direction (degrees magnetic) | 320 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 5 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Unknown |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | -- |
| Event Highest Injury | Serious |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | 1 |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 12349 |
| NTSB Notification Source | FAA |
| NTSB Notification Date | Nov 19 2000 12:00AM |
| NTSB Notification Time | 1149 |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Oct 24 2002 3:20PM |
| User who most recently changed record | NTSB\MONR |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N540AK |
| NTSB Number | LAX01LA045 |
| Missing Aircraft Indicator | N |
| 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 | COLLETTE |
| Aircraft Model | GLASSAIR III |
| Aircraft Series Identifier | GLASSAIR I |
| Aircraft Serial Number | 3077 |
| Certified Max Gross Weight | 2500 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | U.S. Registered/U.S. Soil |
| Aircraft is a homebuilt? | Yes |
| Flight Crew Seats | -- |
| Cabin Crew Seats | -- |
| Passenger Seats | -- |
| Total number of seats on the aircraft | 2 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | 100 Hour |
| Date of Last Inspection | Nov 18 2000 12:00AM |
| Airframe hours since last inspection | 2 |
| Airframe Hours | 700 |
| ELT Installed | Yes |
| ELT Activated | Yes |
| ELT Aided Location of Event Site | Yes |
| ELT Type | -- |
| Aircraft Owner Name | MICHAEL K. SNOW |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | CUPERTINO |
| Aircraft Owner State | CA |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 95014 |
| 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) | Personal |
| Second Pilot on Board | No |
| Departure Point Same as Event | No |
| Departure Airport Code | 3O1 |
| Departure City | GUISTINE |
| Departure State | CA |
| Departure Country | USA |
| Departure Time | 1135 |
| Departure Time Zone | PST |
| Destination Same as Local Flt | -- |
| Destination Airport Code | RHV |
| Destination City | SAN JOSE |
| Destination State | CA |
| Destination Country | USA |
| Specific Phase of Flight | Cruise |
| Report sent to ICAO? | -- |
| Evacuation occurred | No |
| Date of most recent change to record | Aug 17 2002 12:41PM |
| User who most recently changed record | COOS |
| Since inspection or accident | Last Inspection |
| Event Location Runway Number and Location | -- |
| Runway Length | 1400 |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |