Aircraft Accident/Incident Report

Fort Lauderdale, Florida 33341
Monday, July 4, 1994 14:00 EDT

NTSB Narrative Summary Released at Completion of Accident

THE PILOT WAS PERFORMING ACROBATIC MANEUVERS WHEN HE HEARD A 'POP' AND NOTED THAT HIS RIGHT UPPER AILERON WAS LOOSE. HE SLOWED DOWN, AND WAS ABLE TO RETURN AND LAND WITHOUT FURTHER INCIDENT. POSTFLIGHT INSPECTION REVEALED A FAILURE OF THE UPPER RIGHT INBOARD AILERON WELDED BRACKET. FURTHER METALLURGICAL EXAMINATION AT THE SAFETY BOARD LABORATORY REVEALED 3 DISTINCT FATIGUE ORIGINS BETWEEN THE TOE OF THE WELD AND THE WELDED ZONES. THE WELD ITSELF EXHIBITED SHARP AND HIGH WELD CROWNS.

NTSB Probable Cause Narrative

THE POOR WELDING QUALITY OF THE MANUFACTURER, RESULTING IN THE FATIGUE FAILURE OF THE AILERON ATTACHMENT BRACKET.

Event Information

Type of Event Accident
Event Date 7/4/1994
Event Day of the Week Monday
Time of Event 1400
Event Time Zone Eastern Daylight Time
Event City FORT LAUDERDALE
Event State FLORIDA
Event Country --
Zipcode of the event site 33341
Event Date Year 1994
Event Date Month 7
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 --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1345 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 90
Weather Observation Facility ID FXE
Elevation of weather observation facility 24
Distance of event from weather observation facility (units?) 15
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height 20000
Lowest Non-Ceiling Height 3000
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) 15
Air Temperature at event time (in degrees celsius) --
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 100
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) 30
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1351
NTSB Notification Source --
NTSB Notification Date Jul 4 1994 12:00AM
NTSB Notification Time 1750
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 6 2000 11:44AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N61PS
NTSB Number MIA94LA171
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name PITTS
Aircraft Model S2B
Aircraft Series Identifier S2B
Aircraft Serial Number 5230
Certified Max Gross Weight 1700
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 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Dec 15 1993 12:00AM
Airframe hours since last inspection 160
Airframe Hours 740
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name SWARTZ, DAVID J.
Aircraft Owner Street Address 390 LAKEVIEW DRIVE
Aircraft Owner City SUNRISE
Aircraft Owner State FL
Aircraft Owner Country
Aircraft Owner Zipcode 33328
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 L
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 Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 1330
Departure Time Zone EDT
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 Maneuvering
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:34AM
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 --