Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Livermore, California 94550
Tuesady, August 22, 1989 23:08 PDT
NTSB Narrative Summary Released at Completion of Accident
THE FLIGHT HAD DEPARTED LIVERMORE ON 8/18 FOR AN EXTENDED TRIP. WHILE THE PILOT WAS AWAY, LAWRENCE LIVERMORE LABORATORY HAD INSTALLED ELECT TRANSMISSION LINES ON 200-FT TOWERS ON HILLS 6 MI EAST OF THE ARPT. THE LINES CROSSED A HIGHWAY AND WERE ABOUT 300-400 FT ABOVE THE VALLEY FLOOR. ACCORDING TO LOCAL PILOTS, WHEN FOG OR LOW CEILINGS COVERED THE ARPT, IT IS COMMON PRACTICE TO OVERFLY THE ARPT IN AN EASTERLY DIRECTION UNTIL THE GROUND IS VISIBLE, DESCEND, AND REVERSE COURSE UNDER THE CLOUDS FOLLOWING THE HIGHWAY WESTWARD TO THE ARPT. THE MAIN WRECKAGE WAS FOUND 300 YARDS WEST OF THE LINES AND NORTH OF THE HIGHWAY. THE RIGHT WING TIP WAS TORN FROM THE WING, AND WAS LOCATED UNDER THE LINES. GROUND WITNESSES STATED THE SKY WAS OVERCAST AND ESTIMATED THE CEILING AS 200 FT.
NTSB Probable Cause Narrative
THE PILOT'S DECISION TO CONDUCT LOW LEVEL NIGHT FLIGHT UNDER LOW CEILINGS. CONTRIBUTING FACTORS WERE: THE DARK NIGHT, LOW CEILING, AND HIGH OBSTRUCTIONS.
Event Information
| Type of Event | Accident |
| Event Date | 8/22/1989 |
| Event Day of the Week | Tuesday |
| Time of Event | 2308 |
| Event Time Zone | Pacific Daylight Time |
| Event City | LIVERMORE |
| Event State | CALIFORNIA |
| Event Country | -- |
| Zipcode of the event site | 94550 |
| Event Date Year | 1989 |
| Event Date Month | 8 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | |
| Event Location Nearest Airport ID | |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | 0 |
| Degrees magnetic from airport | 0 |
| Airport Elevation | 0 |
| Weather Briefing Completeness | Partial - limited by pilot |
| 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 | Night/Dark |
| Lowest Ceiling Height | 200 |
| Lowest Non-Ceiling Height | 0 |
| Sky/Lowest/Cloud Conditions | Unknown |
| Sky Condition for Lowest Ceiling | Overcast |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 0 |
| Air Temperature at event time (in degrees celsius) | -18 |
| Dew Point at event time (in degress fahrenheit) | -18 |
| Wind Direction (degrees magnetic) | 0 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 0 |
| 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 | Fatal |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | 4 |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 4 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 6017 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Aug 23 1989 12:00AM |
| NTSB Notification Time | 1 |
| Fiche Number and/or location -used to find docket information | 41980 |
| Date of most recent change to record | Dec 18 2002 11:28AM |
| User who most recently changed record | NTSB\GIUV |
| Basic weather conditions | Instrument Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | CFSAB |
| NTSB Number | LAX89FA275 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | -- |
| Damage | Destroyed |
| Aircraft Fire | Ground |
| Aircraft Explosion | Ground |
| Aircraft Manufacturer's Full Name | MOONEY |
| Aircraft Model | M20F |
| Aircraft Series Identifier | M20F |
| Aircraft Serial Number | 680193 |
| Certified Max Gross Weight | 2740 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | Foreign Registered/U.S. Soil |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | -- |
| Cabin Crew Seats | -- |
| Passenger Seats | -- |
| Total number of seats on the aircraft | 4 |
| Number of Engines | 1 |
| 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 | DILOR RESEARCH, LTD |
| Aircraft Owner Street Address | 234 W. ST. JAMES ROAD |
| Aircraft Owner City | VANCOUVER |
| Aircraft Owner State | CD |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | |
| Operator is an individual? | -- |
| 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? | 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 | No |
| Departure Airport Code | BLI |
| Departure City | BELLINGHAM |
| Departure State | WA |
| Departure Country | |
| Departure Time | 1630 |
| Departure Time Zone | PDT |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | |
| Destination City | |
| Destination State | |
| Destination Country | |
| Specific Phase of Flight | Approach |
| 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 | 0 |
| Runway Length | 0 |
| Runway Width | 0 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |