Aircraft Accident/Incident Report

Escondido, California 92026
Monday, September 18, 1989 11:10 PDT

NTSB Narrative Summary Released at Completion of Accident

THE PILOT WAS CLEARED FOR A CLIMB TO CRUISE AND WAS ADVISED TO MAINTAIN VFR. A POST-ACCIDENT WEATHER STUDY INDICATED THAT HE WOULD HAVE BEEN IN IMC CONDITIONS FROM ABOUT 3000 FEET THROUGH 7500 FEET MSL. AFTER INITIATING A CLIMB ON COURSE, THE PILOT LOST CONTROL OF THE AIRPLANE AT 7100 FEET AND IT ENTERED A RIGHT DESCENDING SPIRAL. DURING THE UNCONTROLLED DESCENT, JUST PRIOR TO GROUND IMPACT, THE OUTER 1/2 OF THE RIGHT WING SEPARATED IN OVERSTRESS. THE NON-INSTRUMENT RATED PILOT HAD LOGGED A TOTAL OF 5 HOURS OF ACTUAL AND 14 HOURS OF HOOD TIME, THE LAST OF WHICH WAS LOGGED 2-1/2 YEARS BEFORE THE ACCIDENT. THE OPERATOR DID NOT HAVE AN INSTRUMENT OR INADVERTENT IMC TRAINING PROGRAM.

NTSB Probable Cause Narrative

SPATIAL DISORIENTATION OF THE PILOT AFTER HE INITIATED FLIGHT INTO IMC CONDITIONS, AND HIS EXCEEDING THE DESIGN STRESS LIMITS OF THE AIRPLANE DURING THE ATTEMPTED RECOVERY. RELATED FACTORS WERE: THE PILOT'S LACK OF TOTAL AND RECENT INSTRUMENT FLIGHT EXPERIENCE, AND THE OPERATOR'S INADEQUATE RECURRENT TRAINING PROGRAM.

Event Information

Type of Event Accident
Event Date 9/18/1989
Event Day of the Week Monday
Time of Event 1110
Event Time Zone Pacific Daylight Time
Event City ESCONDIDO
Event State CALIFORNIA
Event Country --
Zipcode of the event site 92026
Event Date Year 1989
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 --
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1046 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 225
Weather Observation Facility ID CRQ
Elevation of weather observation facility 328
Distance of event from weather observation facility (units?) 18
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height 5000
Lowest Non-Ceiling Height 2000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 30
Air Temperature at event time (in degrees celsius) --
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 230
Variable Wind Indicator Unknown
Wind Speed (knots) 5
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
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 2
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 2370
NTSB Notification Source --
NTSB Notification Date Sep 18 1989 12:00AM
NTSB Notification Time 1445
Fiche Number and/or location -used to find docket information 43010
Date of most recent change to record Dec 13 2000 1:03PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N566B
NTSB Number FTW89GA170
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 BEECH
Aircraft Model A35
Aircraft Series Identifier A35
Aircraft Serial Number D-1586
Certified Max Gross Weight 2650
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 Feb 1 1989 12:00AM
Airframe hours since last inspection 107
Airframe Hours 6261
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name ROBERT J. DUFFIELD
Aircraft Owner Street Address 1684 DAWN RIDGE
Aircraft Owner City CORONA
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 91718
Operator is an individual? --
Operator Name U.S. COAST GUARD
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 2100 SECOND STREET SW
Operator City WASHINGTON
Operator State DC
Operator Country
Operator Zip code 20593
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) Public Use
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code SDB
Departure City SAN DIEGO
Departure State CA
Departure Country
Departure Time 900
Departure Time Zone PDT
Destination Same as Local Flt --
Destination Airport Code L66
Destination City CORONA
Destination State CA
Destination Country
Specific Phase of Flight Descent
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 --