Engine — High Pressure Turbine Rotor Stage 2 Disc — Inspection
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AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators must replace affected high pressure turbine rotor stage 2 discs during the next qualified engine shop visit after 29 June 2020. Installation of affected parts is prohibited unless they have passed the specified ultrasonic inspection. Maintenance teams should follow the instructions in the applicable Engine Shop Manual and the referenced CFM Service Bulletin for inspection and replacement procedures.
Summary
EASA Airworthiness Directive 2020-0135 is an airworthiness directive addressing the inspection and replacement of high pressure turbine rotor stage 2 discs on CFM International LEAP-1A engines. This directive applies to various LEAP-1A engine models installed on Airbus A319, A320, and A321 aircraft. It mandates inspection and replacement of specific affected turbine discs to ensure continued airworthiness.
What changed
EASA Airworthiness Directive 2020-0135 introduces mandatory replacement of certain high pressure turbine rotor stage 2 discs identified as having potential subsurface anomalies from manufacturing. It prohibits installation of affected parts unless they have passed an immersion ultrasonic inspection. This is a new directive and does not supersede any previous AD.
Why it matters
This directive is critical for aviation professionals because undetected defects in the turbine discs could lead to disc failure and release of high-energy debris, posing serious safety risks. Operators and maintenance organizations must ensure compliance to prevent engine damage and maintain aircraft control. Compliance ensures continued airworthiness and regulatory adherence.
More for CFM International LEAP-1A
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