Aircraft Accident/Incident Report

Stockton, California 95201
Thursday, May 4, 1989 16:30 PDT

NTSB Narrative Summary Released at Completion of Accident

PRIOR TO DEPARTURE THE PILOT INDICATED THAT HE MIGHT TRY TO ROLL HIS AIRPLANE DURING HIS RETURN FLIGHT HOME. DURING THE FLIGHT THE PILOT WAS RECEIVING VFR RADAR TRAFFIC ADVISORIES WHILE CRUISING BETWEEN 8,400 AND 8,600 FT. AT 1629:23 THE AIRPLANE'S TRANSPONDER INDICATED IT WAS AT 8,600 FT. 12 SECS LATER IT WAS AT 7,800 FT, AND THEN 4 SECS LATER THE CONTROLLER HEARD AN ELT. AT 1629:45 THE CONTROLLER HEARD A MAYDAY AND RADAR CONTACT WAS LOST. WITNESSES OBSERVED THE AIRPLANE DESCENDING IN A 60-90 DEG NOSE-DOWN ATTITUDE. BOTH WINGS, VERTICAL STABILIZER, RUDDER, AND STABILATOR SEPARATED IN FLIGHT. NO RECORD OF THE PILOT RECEIVING AEROBATIC INSTRUCTION.

NTSB Probable Cause Narrative

THE PILOT'S IMPROPER DECISION TO PERFORM AEROBATICS WHICH RESULTED IN THE DESIGN STRESS LIMITS OF THE AIRPLANE BEING EXCEEDED DUE TO EXCESSIVE AIRSPEED. CONTRIBUTING FACTORS TO THE ACCIDENT WERE THE PILOT'S OVERCONFIDENCE IN HIS AND THE AIRPLANE'S ABILITY, AND HIS LACK OF AEROBATIC FLIGHT EXPERIENCE.

Event Information

Type of Event Accident
Event Date 5/4/1989
Event Day of the Week Thursday
Time of Event 1630
Event Time Zone Pacific Daylight Time
Event City STOCKTON
Event State CALIFORNIA
Event Country --
Zipcode of the event site 95201
Event Date Year 1989
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 Not pertinent
Investigator's weather source Pilot
Time of the weather observation 1655 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 120
Weather Observation Facility ID SCK
Elevation of weather observation facility 30
Distance of event from weather observation facility (units?) 15
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height 10000
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
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) 31
Dew Point at event time (in degress fahrenheit) 14
Wind Direction (degrees magnetic) 290
Variable Wind Indicator Unknown
Wind Speed (knots) 13
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 1
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 2376
NTSB Notification Source --
NTSB Notification Date May 4 1989 12:00AM
NTSB Notification Time 1710
Fiche Number and/or location -used to find docket information 43015
Date of most recent change to record Dec 13 2000 12:40PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N8133A
NTSB Number LAX89FA178
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 PIPER
Aircraft Model PA-28-201T
Aircraft Series Identifier PA-28-201T
Aircraft Serial Number 28-7921056
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 Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Oct 1 1988 12:00AM
Airframe hours since last inspection 92
Airframe Hours 627
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site Yes
ELT Type --
Aircraft Owner Name BELTRAN INVESTMENTS, INC.
Aircraft Owner Street Address 3300 PAYNE AVE.
Aircraft Owner City SAN JOSE
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 95117
Operator is an individual? --
Operator Name PAUL J. THURSTON
Operator Same as Owner? No
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 RNO
Departure City RENO
Departure State NV
Departure Country
Departure Time 1535
Departure Time Zone PDT
Destination Same as Local Flt --
Destination Airport Code SJC
Destination City SAN JOSE
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 --