Aircraft Accident/Incident Report

Portola, California 96106
Monday, May 23, 1983 14:30 PDT

NTSB Narrative Summary Released at Completion of Accident

THE HOME BUILT ACFT COLLIDED WITH TREES & CRASHED ON RISING TERRAIN WHILE THE PLT & PASSENGER WERE ON A SIGHT-SEEING FLT. THE ACCIDENT OCCURRED AT AN ELEVATION OF 7000 FT, THE DENSITY ALTITUDE WAS ESTIMATED TO BE APRX 10000 FT. THE WRECKAGE WAS SCATTERED APRX 290 FT ALONG A SOUTHERLY DIRECTION. ABOUT 40 MILES EAST OF THE CRASH SITE, THE WIND WAS FROM 360 DEG AT 10 KTS. THE PLT HAD BEEN USING AUTOMOTIVE FUEL IN THE ENG. THE OWNER'S MANUAL STATED, 'AUTO GAS, ESPECIALLY THE HIGH AEROMATIC CONTENT NO-LEAD, SHOULD NOT BE USED.' NO EVIDENCE OF A PREIMPACT STRUCTURAL FAILURE WAS REPORTED.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 5/23/1983
Event Day of the Week Monday
Time of Event 1430
Event Time Zone Pacific Daylight Time
Event City PORTOLA
Event State CALIFORNIA
Event Country --
Zipcode of the event site 96106
Event Date Year 1983
Event Date Month 5
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 Weather Observation Facility
Time of the weather observation 1349 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 85
Weather Observation Facility ID RNO
Elevation of weather observation facility 4412
Distance of event from weather observation facility (units?) 40
Time Zone of the weather observation PDT
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) 40
Air Temperature at event time (in degrees celsius) 28
Dew Point at event time (in degress fahrenheit) 2
Wind Direction (degrees magnetic) 360
Variable Wind Indicator Unknown
Wind Speed (knots) 10
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 10000
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 2
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 1132
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 21440
Date of most recent change to record Jan 2 2001 9:15AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N882BF
NTSB Number LAX83FA246
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 None
Aircraft Explosion None
Aircraft Manufacturer's Full Name HERPST
Aircraft Model VARIEZE
Aircraft Series Identifier VARIEZE
Aircraft Serial Number 882
Certified Max Gross Weight 1050
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 Fixed
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection May 3 1983 12:00AM
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name ROLAND GORDON HERBST
Aircraft Owner Street Address P.O. BOX 100
Aircraft Owner City CLIO
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 96106
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 002
Departure City BECKWOURTH
Departure State CA
Departure Country
Departure Time 1315
Departure Time Zone PDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Unknown
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:36AM
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 --