Aircraft Accident/Incident Report

Corona, California 92880
Monday, December 30, 2002 11:48 PST

NTSB Narrative Summary Released at Completion of Accident

The day before the accident the pilot/builder of the experimental airplane had installed an air/oil separator on the airplane. In the process, he had removed a high-pressure oil line from the oil cooler and then reattached it "firmly" with a screw clamp "as best he could." A taxi test was conducted with the engine cowling removed to check for oil leaks, and none were found. During climb out, at 6,500 feet, the engine lost oil pressure, and the pilot decided to make an emergency landing on an interstate highway. During final approach, the engine seized, and the airplane struck the roof of a motor home and came to rest on its belly. According to the pilot, the engine seized after the "hi presssure oil line to oil cooler was pushed or pulled off, draining all oil" from the engine.

NTSB Probable Cause Narrative

The pilot/builder's improper maintenance procedure for reattaching a high-pressure oil line, which resulted in the oil line disconnecting during flight, followed by a loss of oil and engine seizure.

Event Information

Type of Event Accident
Event Date 12/30/2002
Event Day of the Week Monday
Time of Event 1148
Event Time Zone Pacific Standard Time
Event City CORONA
Event State CALIFORNIA
Event Country --
Zipcode of the event site 92880
Event Date Year 2002
Event Date Month 12
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 335300N
Event Location Longitude 1173600W
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 --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1153 Pacific Standard Time
Direction of event from weather observation facility (degrees) 320
Weather Observation Facility ID CNO
Elevation of weather observation facility 652
Distance of event from weather observation facility (units?) 25
Time Zone of the weather observation PST
Lighting Conditions Day
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) 9
Air Temperature at event time (in degrees celsius) 14
Dew Point at event time (in degress fahrenheit) 6
Wind Direction (degrees magnetic) --
Variable Wind Indicator Variable
Wind Speed (knots) --
Wind Velocity Indicator Calm
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.23
Density Altitude (feet) 514
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) 15935
NTSB Notification Source FAA
NTSB Notification Date Dec 30 2002 12:00AM
NTSB Notification Time 1208
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Jul 29 2004 7:30AM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office WP-RAL-FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N364M
NTSB Number LAX03LA056
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 NICHOLSON
Aircraft Model LANCAIR 320
Aircraft Series Identifier --
Aircraft Serial Number 1
Certified Max Gross Weight 1800
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 Unknown
Date of Last Inspection --
Airframe hours since last inspection 22
Airframe Hours 22
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name KENNETH F. NICHOLSON
Aircraft Owner Street Address --
Aircraft Owner City ANAHEIM
Aircraft Owner State CA
Aircraft Owner Country USA
Aircraft Owner Zipcode 92807
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 CNO
Departure City CHINO
Departure State CA
Departure Country USA
Departure Time 1130
Departure Time Zone PST
Destination Same as Local Flt --
Destination Airport Code F70
Destination City MURRIETA/TEMECU
Destination State CA
Destination Country USA
Specific Phase of Flight Cruise
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record May 26 2004 6:04PM
User who most recently changed record COOS
Since inspection or accident Time of Accident
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --