Safety Publications Tool

US-2026-20-12 : Turbine - High-Pressure Turbine Interstage Seal - Replacement

Number US-2026-20-12
Issued by United States of America  United States of America
Issue date 2026-10-12
Effective date 2026-10-23
EASA approval number
ATA Chapter 72
Approval Holder
/ Type Designation
  • ENGINE ALLIANCE LLC
    • GP7200
      • GP7270
      • GP7272
      • GP7277
Revision Not applicable
Correction Not applicable
Supersedure None
Publication(s) and related information (i) Engine Alliance (EA) Alert Service Bulletin EAGP7-A72-479, dated 04 September 2026. (3) For EA material identified in this AD, contact Engine Alliance, 411 Silver Lane, East Hartford, CT 06118; phone: (800) 565-0140; email: help24[at]pw.utc[dot]com; website: engineallianceportal[dot]com.
Remarks This AD is considered adopted in accordance with the provisions of ED Decision 2019/018/ED; the ED Decision is available at this link: https://www.easa.europa.eu/en/document-library/agency-decisions/ed-decision-2019018ed. Comments regarding this (E)AD should be referred to the Safety Information Section, Certification Directorate, EASA; E-mail: ADs[at]easa.europa.eu.

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