ASN Wikibase Occurrence # 360226
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Date: | Monday 4 July 1994 |
Time: | 15:00 LT |
Type: | Pitts S-2B |
Owner/operator: | Private |
Registration: | N61PS |
MSN: | 5230 |
Year of manufacture: | 1991 |
Total airframe hrs: | 740 hours |
Engine model: | LYCOMING AEIO-540 |
Fatalities: | Fatalities: 0 / Occupants: 1 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Fort Lauderdale, FL -
United States of America
|
Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
Nature: | Private |
Departure airport: | |
Destination airport: | |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative: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.
Probable Cause: THE POOR WELDING QUALITY OF THE MANUFACTURER, RESULTING IN THE FATIGUE FAILURE OF THE AILERON ATTACHMENT BRACKET.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | MIA94LA171 |
Status: | Investigation completed |
Duration: | 9 months |
Download report: | Final report |
|
Sources:
NTSB MIA94LA171
History of this aircraft
Other occurrences involving this aircraft Revision history:
Date/time | Contributor | Updates |
15-Mar-2024 19:18 |
ASN Update Bot |
Added |
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