Airworthiness DirectiveEASA AD US-2025-17-16

Turbine Engine - Airworthiness Limitations Section - Revision

Published: Sep 8, 2025
Effective: Oct 10, 2025

International Aero Engines Ag V2500-( )5

AI-generated summary of the official EASA document. Verify against the PDF before acting.

What to do

Affected operators must revise the airworthiness limitations section of their maintenance manuals or instructions for continued airworthiness and update their approved maintenance or inspection programs to include the specified inspection tasks. These revisions must be completed by the effective date of October 10, 2025. Operators should coordinate with OEMs and repair shops to ensure proper incorporation of the new inspection tasks and clarify responsibilities for performing inspections.

Summary

The Turbine Engine - Airworthiness Limitations Section - Revision is a final rule airworthiness directive issued by the FAA that applies to certain International Aero Engines AG models including V2522-A5, V2524-A5, V2525-D5, V2527-A5, V2527E-A5, V2527M-A5, V2528-D5, V2530-A5, V2531-E5, and V2533-A5. This directive addresses an unsafe condition caused by an uncontained failure of a high-pressure turbine 1st-stage hub in the V2533-A5 engine. It mandates revisions to the airworthiness limitations section of maintenance manuals and inspection programs to include new inspections of critical rotating parts.

What changed

This new airworthiness directive introduces a requirement to revise the airworthiness limitations section and approved maintenance or inspection programs to incorporate inspections of the high-pressure turbine 1st-stage and 2nd-stage hubs. It updates inspection task references and clarifies responsibilities for operators and repair shops. The directive does not supersede previous ADs but adds two new inspections at piece-part exposure.

Why it matters

This directive is critical for aviation professionals because it enhances safety by addressing a known risk of uncontained turbine failures that can cause engine damage and potential hazards. Operators and maintenance organizations must update their maintenance manuals and inspection programs to comply, ensuring continued airworthiness and regulatory compliance. Failure to comply could result in unsafe engine operation and regulatory penalties.

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