Aircraft Accident/Incident Report

Sonora, California 95476
Sunday, August 30, 1987 17:30 PDT

NTSB Narrative Summary Released at Completion of Accident

DURING A PLEASURE FLT THE ENGINE SUDDENLY LOST PARTIAL POWER. THE PLT MADE A FORCED LANDING IN A PARKING LOT WHERE THE AIRCRAFT TOUCHED DOWN AND COLLIDED WITH A FENCE THAT BORDERS THE LOT. THE ENGINE WAS INSPECTED AND TEST RUN FOR APPROX 20 MINUTES AT DIFFERENT POWER SETTINGS WITH NO DISCREPANCIES NOTED.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 8/30/1987
Event Day of the Week Sunday
Time of Event 1730
Event Time Zone Pacific Daylight Time
Event City SONORA
Event State CALIFORNIA
Event Country --
Zipcode of the event site 95476
Event Date Year 1987
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 --
Weather Briefing Completeness Unknown
Investigator's weather source Pilot
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) 25
Air Temperature at event time (in degrees celsius) 36
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 90
Variable Wind Indicator Unknown
Wind Speed (knots) 5
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 25
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) 1400
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 2
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 1373
NTSB Notification Source --
NTSB Notification Date Aug 30 1987 12:00AM
NTSB Notification Time 1830
Fiche Number and/or location -used to find docket information 34626
Date of most recent change to record Dec 13 2000 2:43PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N737SL
NTSB Number LAX87LA320
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 172N
Aircraft Series Identifier 172N
Aircraft Serial Number 17269639
Certified Max Gross Weight 2150
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 --
Airframe hours since last inspection 20
Airframe Hours 980
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name GATES, BENNETT E.
Aircraft Owner Street Address 765 JORDAN AVE
Aircraft Owner City LOS ALTOS
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 94022
Operator is an individual? --
Operator Name GATES, BENNETT E.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 765 JORDAN AVENUE
Operator City LOS ALTOS
Operator State CA
Operator Country
Operator Zip code 94022
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 022
Departure City COLUMBIA
Departure State CA
Departure Country
Departure Time 1640
Departure Time Zone PDT
Destination Same as Local Flt --
Destination Airport Code PAO
Destination City PALO ALTO
Destination State CA
Destination Country
Specific Phase of Flight Landing
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 --