Aircraft Accident/Incident Report

Agoura, California 91301
Sunday, September 26, 1982 13:08 PDT

NTSB Narrative Summary Released at Completion of Accident

DURING DEPARTURE, THE PILOT CLIMBED IN IFR CONDITIONS TO 600O FT. AFTER LEVELING, A FREQUENCY CHANGE WAS MADE AND HE WAS CLEARED TO 8000 FT, WHICH HE ACKNOWLEDGED. ABOUT 2 MIN LATER, THE CONTROLLER RADIOED TO THE PILOT THAT HE WAS ABOUT 4 MI NORTH OF THE AIRWAY, BUT THERE WAS NO REPLY FROM THE PILOT. SHORTLY AFTER THAT RADAR CONTACT WAS LOST AND THE PLANE CRASHED IN MOUNTAINOUS TERRAIN. SEVERAL RESIDENTS IN THE AREA REPORTED HEARING EXTREMELY LOUD ENGINE NOISES FOLLOWED BY COMPLETE SILENCE. AN INVESTIGATION REVEALED THAT BOTH WINGS HAD SEPARATED OUTBOARD OF THEIR RESPECTIVE ENGINE NACELLE ASSEMBLIES. AN EXAMINATION OF THE FRACTURES REVEALED THE WINGS HAD SEPARATED FROM POSITIVE OVERLOAD. THE LEADING EDGES OF BOTH WINGS HAD BALLOONED UPWARD, INDICATIVE OF EXTREME AIRSPEED. THE EMPENNAGE HAD SEPARATED IN A YAW AND FROM RIGHT TORSIONAL OVERLOAD. PARTS OF THE AIRCRAFT WERE FOUND WITHIN A 1 MI ARC, NORTH OF THE MAIN IMPACT AREA. THE PILOT'S RECENT INSTRUMENT EXPERIENCE COULD NOT BE VERIFIED. TURBC WAS FCSTD BLO 8000 FT.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 9/26/1982
Event Day of the Week Sunday
Time of Event 1308
Event Time Zone Pacific Daylight Time
Event City AGOURA
Event State CALIFORNIA
Event Country --
Zipcode of the event site 91301
Event Date Year 1982
Event Date Month 9
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 0
Weather Briefing Completeness Full
Investigator's weather source Unknown
Time of the weather observation 1250
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID LAX
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 20
Time Zone of the weather observation
Lighting Conditions Day
Lowest Ceiling Height 900
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 5
Air Temperature at event time (in degrees celsius) 67
Dew Point at event time (in degress fahrenheit) 0
Wind Direction (degrees magnetic) 250
Variable Wind Indicator Unknown
Wind Speed (knots) 15
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) 0
Intensity of Precipitation Light
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) 3365
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information
Date of most recent change to record Oct 31 2002 4:04PM
User who most recently changed record NTSB\ZUZL
Basic weather conditions Instrument Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N2622B
NTSB Number LAX82FA357
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name AERO COMMANDER
Aircraft Model 520
Aircraft Series Identifier 520
Aircraft Serial Number 134
Certified Max Gross Weight 5700
Aircraft Category Airplane
Aircraft Registration Class Unknown
Aircraft is a homebuilt? Unknown
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 6
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection --
Airframe hours since last inspection 249
Airframe Hours 5198
ELT Installed Yes
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name DONALD NELSON
Aircraft Owner Street Address 3 AQUA VISTA
Aircraft Owner City ORINDA
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 94563
Operator is an individual? --
Operator Name DONALD NELSON
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 3 AQUA VISTA
Operator City ORINDA
Operator State CA
Operator Country
Operator Zip code 94563
Operator Code
Owner has at least one certificate Yes - certificate holder
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) Business
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code HHR
Departure City HAWTHORNE
Departure State CA
Departure Country
Departure Time 1253
Departure Time Zone
Destination Same as Local Flt --
Destination Airport Code SBP
Destination City SAN LUIS OBISPO
Destination State CA
Destination Country
Specific Phase of Flight Climb
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Sep 18 2002 4:50PM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length 0
Runway Width 0
Sight Seeing flight No
Air Medical Flight No
Medical Flight --