Engine - High-Pressure Turbine Stator Cases - Removal / Replacement
- Published
- Effective
- Deadline
- Replaces
- 2018-16-07
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Affected operators must remove and replace the specified high-pressure turbine stator cases with parts eligible for installation by the effective date of February 25, 2019. They should consult the referenced General Electric service bulletins for detailed procedures and ensure compliance within the shortened timeframes. Comments on the directive are accepted until March 25, 2019.
Summary
The Federal Aviation Administration's Airworthiness Directive 2019-02-01 addresses certain General Electric Company GEnx turbofan engines, including models GEnx-1B54 through GEnx-2B67 variants. This directive mandates the removal and replacement of affected high-pressure turbine stator cases due to a manufacturing quality escape that could lead to engine failure and fire. The directive updates previous requirements by reducing compliance times for these actions to enhance safety.
What changed
Airworthiness Directive 2019-02-01 supersedes AD 2018-16-07 by retaining the removal and replacement requirements for affected high-pressure turbine stator cases but reduces the compliance times based on new fatigue life data. It introduces shorter deadlines for operators to comply with the removal and replacement to mitigate the risk of turbine case failure.
Why it matters
This directive is critical for aviation professionals because it addresses a serious safety risk involving potential engine fire and damage due to defective turbine stator cases. Operators and maintenance organizations must act promptly to avoid in-service failures, ensuring continued airworthiness and regulatory compliance. The reduced compliance times require accelerated maintenance planning and resource allocation.
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