South County Airport
Aircraft Accident/Incident Report

San Martin, California 95046
Monday, January 30, 1989 15:45 PST

NTSB Narrative Summary Released at Completion of Accident

SHORTLY AFTER TAKEOFF, THE ENGINE LOST PARTIAL POWER. THE PILOT ATTEMPTED TO RELAND AT THE AIRPORT, HOWEVER, THE ENGINE LOST POWER COMPLETELY AND AN EMERGENCY LANDING WAS MADE IN A FIELD. INSPECTION OF THE ENGINE REVEALED THAT A SPARK PLUG WAS LOOSE. THE REMAINING PLUGS WERE SEVERELY LEAD AND CARBON FOULED. THE ENGINE WAS SUCCESSFULLY TEST RUN AFTER THE ACCIDENT.

NTSB Probable Cause Narrative

ENGINE FAILURE DUE TO A LOOSE SPARK PLUG WITH THE REMINAING PLUGS FOULED WITH CARBON DEPOSITS.

Event Information

Type of Event Accident
Event Date 1/30/1989
Event Day of the Week Monday
Time of Event 1545
Event Time Zone Pacific Standard Time
Event City SAN MARTIN
Event State CALIFORNIA
Event Country --
Zipcode of the event site 95046
Event Date Year 1989
Event Date Month 1
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport SOUTH COUNTY
Event Location Nearest Airport ID Q99
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 --
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1545 Pacific Standard Time
Direction of event from weather observation facility (degrees) 302
Weather Observation Facility ID SJC
Elevation of weather observation facility 56
Distance of event from weather observation facility (units?) 26
Time Zone of the weather observation PST
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 20000
Sky/Lowest/Cloud Conditions Thin Broken
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) 20
Dew Point at event time (in degress fahrenheit) 2
Wind Direction (degrees magnetic) 350
Variable Wind Indicator Unknown
Wind Speed (knots) 2
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor 4
Injury Total None --
Injury Total Serious --
Injury Total All 4
Investigating Agency NTSB
NTSB Docket Number (internal use) 175
NTSB Notification Source --
NTSB Notification Date Jan 30 1989 12:00AM
NTSB Notification Time 1622
Fiche Number and/or location -used to find docket information 38494
Date of most recent change to record Dec 13 2000 12:25PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N8163F
NTSB Number LAX89LA098
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed VFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name PIPER
Aircraft Model PA-28-161
Aircraft Series Identifier PA-28-161
Aircraft Serial Number 28-8016201
Certified Max Gross Weight 2325
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 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Nov 7 1988 12:00AM
Airframe hours since last inspection 75
Airframe Hours 1851
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name DALE L. DORR
Aircraft Owner Street Address 1533 MANHATTAN
Aircraft Owner City GROVER CITY
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 93433
Operator is an individual? --
Operator Name CONDOR AVIATION
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 56142 AIR PARK DR.
Operator City OCEANO
Operator State CA
Operator Country
Operator Zip code 93445
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 Q99
Departure City SAN MARTIN
Departure State CA
Departure Country
Departure Time 1542
Departure Time Zone PST
Destination Same as Local Flt --
Destination Airport Code L52
Destination City OCEANO
Destination State CA
Destination Country
Specific Phase of Flight Takeoff
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 --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --