Horizontal Stabilizer Forward Root / Strut Fittings - Life Limit / Inspection
- Published
- Effective
- Deadline
- Replaces
- 2020-26-13
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Affected operators must comply with the new inspection intervals and replacement criteria for specified part-numbered forward root fittings and stabilizer strut fittings. The AD is effective June 27, 2022, and requires ongoing repetitive inspections and prohibitions on installing certain stabilizer assemblies. Operators should consult the Sikorsky S-92 Maintenance Manual Temporary Revision 55-33 for detailed procedures.
Summary
The Federal Aviation Administration's Airworthiness Directive 2022-11-04 addresses Sikorsky Aircraft Corporation Model S-92A helicopters. It focuses on the horizontal stabilizer forward root fittings and stabilizer strut fittings, correcting part numbers and requiring additional inspections to ensure continued airworthiness and safety.
What changed
This directive supersedes AD 2020-26-13 by correcting incorrect part numbers and expanding inspection requirements for certain stabilizer components. It retains previous prohibitions on installing specific stabilizer assemblies and incorporates an approved global Alternative Method of Compliance for part removals.
Why it matters
This AD is critical for maintaining the structural integrity of the horizontal stabilizer assemblies on Sikorsky S-92A helicopters, preventing potential failures due to wear, corrosion, or damage. Operators, maintenance organizations, and compliance teams must adhere to these updated inspection and replacement requirements to ensure flight safety and regulatory compliance.
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