Accident Pitts S-2B N61PS,
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ASN Wikibase Occurrence # 360226
 
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Date:Monday 4 July 1994
Time:15:00 LT
Type:Silhouette image of generic PTS2 model; specific model in this crash may look slightly different    
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:
cover
  
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
26 May 1994 N61PS Private 0 Keystone Height, FL sub
3 March 2004 N61PS Private 0 Parkland, FL sub
Fuel exhaustion

Revision history:

Date/timeContributorUpdates
15-Mar-2024 19:18 ASN Update Bot Added

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