[Final Rule] Engine - High Pressure Turbine Stage 1/2 Disks - Inspection
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of aircraft with affected IAE V2522-A5, V2524-A5, V2527-A5, V2527E-A5, V2527M-A5, V2530-A5, and V2533-A5 engines must perform ultrasonic inspections of the HPT 1st-stage and 2nd-stage disks within 10 flight cycles from the effective date of July 19, 2021. Disks that fail inspection must be removed from service immediately. Stakeholders should also review the referenced IAE service bulletins for detailed inspection procedures.
Summary
[Final Rule] Engine - High Pressure Turbine Stage 1/2 Disks - Inspection is a Federal Aviation Administration (FAA) airworthiness directive addressing certain International Aero Engines AG V2522-A5, V2524-A5, V2527-A5, V2527E-A5, V2527M-A5, V2530-A5, and V2533-A5 turbofan engines. It mandates ultrasonic inspections of high-pressure turbine (HPT) 1st-stage and 2nd-stage disks due to an uncontained failure event that caused high-energy debris to penetrate the engine cowling. The directive aims to prevent potential engine and aircraft damage or loss resulting from similar failures.
What changed
This new airworthiness directive introduces mandatory ultrasonic inspections of affected HPT 1st-stage and 2nd-stage disks on specified IAE turbofan engines. Depending on inspection results, it requires removal of disks found to be at risk. It follows an earlier emergency AD and expands the affected disk population based on recent investigative findings.
Why it matters
This directive is critical for aviation professionals because it addresses a serious safety risk involving uncontained turbine disk failures that can cause significant engine and aircraft damage. Operators and maintenance organizations must comply promptly to ensure continued airworthiness and flight safety. The inspections and potential removals help mitigate the risk of in-flight engine failures and associated hazards.
More for International Aero Engines Ag V2500-( )5
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- EASA AD US-2025-19-13Engine - High-Pressure Turbine 1st-stage and 2nd-stage Hubs - ReplacementSep 26, 2025
- EASA AD US-2025-17-16Turbine Engine - Airworthiness Limitations Section - RevisionSep 8, 2025
- EASA AD US-2024-11-03Engine - 1st-Stage Hubs and 2nd-Stage Hubs - Inspection / ReplacementJun 20, 2024
- EASA AD US-2022-02-09
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