Aircraft Accident/Incident Report

Essex, California 92332
Friday, August 5, 1983 19:30 PDT

NTSB Narrative Summary Released at Completion of Accident

WHEN THE CROSS-COUNTRY FLIGHT DID NOT ARRIVE AT ITS DESTINATION, CONCERNED RELATIVES REPORTED IT OVERDUE. A SEARCH WAS INITIATED, BUT THE AIRPLANE WAS NOT FOUND DURING THAT SEARCH. HOWEVER, IT WAS LOCATED ON 11/19/91, WHILE A SEARCH WAS BEING MADE FOR ANOTHER AIRPLANE. AN NTSB WEATHER STUDY DISCLOSED THAT VISUAL METEOROLOGICAL CONDITIONS PREVAILED AT THE TIME OF THE ACCIDENT. AN EXAMINATION DISCLOSED THE AIRPLANE HAD STRUCK THE GROUND IN A STEEP, NOSE DOWN, HIGH VELOCITY, RIGHT WING DOWN ATTITUDE. THE WRECKAGE GROUND PATH EXTENDED ABOUT 246 FEET WITH DEBRIS SCATTERED ABOUT A 120 DEGREE FAN SHAPED ARC FROM THE INITIAL IMPACT CRATER. ALL OF THE AIRPLANE'S FLIGHT CONTROLS & MAJOR COMPONENTS WERE FOUND AT THE MAIN WRECKAGE AREA. THE PROPELLER BLADES DISPLAYED EXTENSIVE ENGINE POWER SIGNATURES. THE AUTOPILOT SLIDE SWITCH WAS FOUND IN THE ON POSITION AND THE PITCH TRIM WHEEL WAS IN THE MAX UP POSITION. NO PREIMPACT AIRFRAME FAILURE WAS FOUND.

NTSB Probable Cause Narrative

AN IN-FLIGHT LOSS OF CONTROL FOR UNDETERMINED REASONS.

Event Information

Type of Event Accident
Event Date 8/5/1983
Event Day of the Week Friday
Time of Event 1930
Event Time Zone Pacific Daylight Time
Event City ESSEX
Event State CALIFORNIA
Event Country --
Zipcode of the event site 92332
Event Date Year 1983
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 Weather Observation Facility
Time of the weather observation 2000 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 260
Weather Observation Facility ID DAG
Elevation of weather observation facility 1927
Distance of event from weather observation facility (units?) 77
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 15000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 35
Air Temperature at event time (in degrees celsius) --
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Unknown
Wind Speed (knots) 0
Wind Velocity Indicator Calm
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 Fatal
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal 3
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 3
Investigating Agency NTSB
NTSB Docket Number (internal use) 2708
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 23005
Date of most recent change to record Aug 22 2002 2:29PM
User who most recently changed record NTSB\HAMG
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N3624H
NTSB Number LAX83LA468
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 MOONEY
Aircraft Model M20K
Aircraft Series Identifier M20K
Aircraft Serial Number 25-0432
Certified Max Gross Weight 2900
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 Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jan 1 1983 12:00AM
Airframe hours since last inspection --
Airframe Hours 152
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name ROBERT D. WAKEMAN
Aircraft Owner Street Address 611 W. HERMOSA DR.
Aircraft Owner City FULLERTON
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 92635
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 GCN
Departure City GRAND CANYON
Departure State AZ
Departure Country
Departure Time 1830
Departure Time Zone PDT
Destination Same as Local Flt --
Destination Airport Code FUL
Destination City FULLERTON
Destination State CA
Destination Country
Specific Phase of Flight Descent
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Aug 22 2002 2:29PM
User who most recently changed record NTSB\HAMG
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 --