Sikorsky S-92A Helicopters — Fuselage Cabin Structure Inspection
- Published
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of Sikorsky S-92A helicopters with 2,500 or more flight hours as of March 30, 2011, who have not performed the cabin structure modifications per SSI 92-037 (latest revision), should conduct 100-hour recurring visual inspections of the cabin structure at STA 328 and STA 361 following ASB No. 92-53-007. Performing the modifications per SSI 92-037 eliminates the need for these recurring inspections. Contact Sikorsky or the FAA for further technical support if needed.
Summary
The FAA Special Airworthiness Information Bulletin SW-12-23 provides guidance for Sikorsky Aircraft Corporation Model S-92A helicopters regarding inspection of the fuselage cabin structure. It alerts operators to follow Sikorsky Alert Service Bulletin No. 92-53-007 for recurring visual inspections of cabin structure at stations STA 328 and STA 361 to detect cracks. This bulletin is informational and does not mandate regulatory action under 14 CFR part 39.
What changed
This bulletin introduces a recommendation for recurring visual inspections of the cabin structure at specific fuselage stations for Sikorsky S-92A helicopters with over 2,500 flight hours. It also highlights Sikorsky Special Service Instructions SSI No. 92-037B, which, if accomplished, eliminate the need for these recurring inspections. Additionally, it updates inspection procedures in the Aircraft Maintenance Manual via a Temporary Revision.
Why it matters
This information is important for operators and maintenance personnel to ensure early detection of cracks in critical cabin frame areas, thereby maintaining structural integrity and safety. Compliance with the recommended inspections or modifications helps prevent potential structural failures and supports continued airworthiness. It also aids in planning maintenance schedules and resource allocation for Sikorsky S-92A helicopter fleets.
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