[Correction] Engine - Low-Pressure Turbine 1st- and 3rd-Stage Disk - Removal / Replacement
- Published
- Effective
- Deadline
- Replaces
- 2018-24-01
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Affected operators must remove the specified LPT 1st- and 3rd-stage disks from service and replace them with eligible parts within 30 days after April 10, 2019, or at the next piece-part exposure not exceeding specified cycle limits. Maintenance teams should verify serial numbers against the corrected lists in the AD and coordinate with the FAA for any alternative methods of compliance if needed.
Summary
The document titled "[Correction] Engine - Low-Pressure Turbine 1st- and 3rd-Stage Disk - Removal / Replacement" is a Federal Aviation Administration (FAA) Airworthiness Directive (AD 2019-06-01) concerning International Aero Engines (IAE) PW1133G-JM, PW1133GA-JM, PW1130G-JM, PW1127G-JM, PW1127GA-JM, PW1127G1-JM, PW1124G-JM, PW1124G1-JM, and PW1122G-JM turbofan engines. It addresses the removal and replacement of certain low-pressure turbine (LPT) 1st- and 3rd-stage disks due to manufacturing defects. This AD aims to prevent potential failure of these disks, which could lead to engine and aircraft damage.
What changed
This AD supersedes AD 2018-24-01 by correcting previously incorrect and omitted serial numbers of affected LPT disks. The requirements remain the same as the prior AD, mandating removal and replacement of specified LPT disks, but with updated serial number listings to accurately identify the affected parts.
Why it matters
This AD is critical for aviation professionals because it addresses an unsafe condition that could cause uncontained disk failure, posing serious safety risks to aircraft and passengers. Operators and maintenance organizations must ensure compliance to prevent engine damage and maintain airworthiness. Accurate identification of affected parts is essential for effective maintenance and regulatory compliance.
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