# Proposed AD FAA-2009-0294: International Aero Engines AG (IAE) V2500-A1, V2527E-A5, V2530-A5, and V2528-D5 Turbofan Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2009-22-06
- Products: International Aero Engines
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: June 29, 2009, 74 FR 30981
- Comments due: August 28, 2009
- Became: [AD 2009-22-06](https://openairdocs.org/ad/2009-22-06)
- Docket: FAA-2009-0294 (https://www.regulations.gov/docket/FAA-2009-0294, where comments are filed)
- Project: 2009-NE-08-AD
- FR document: E9-15250
- Official PDF: https://openairdocs.org/files/sha256/b0/70/b0702f45823294e38cf9439abf76bd677888ed5afa658ea22639b63680e1c2a1 (from https://www.govinfo.gov/content/pkg/FR-2009-06-29/pdf/E9-15250.pdf)
- Federal Register: https://www.federalregister.gov/documents/2009/06/29/E9-15250/airworthiness-directives-international-aero-engines-ag-iae-v2500-a1-v2527e-a5-v2530-a5-and-v2528-d5
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F17D15B9AA0F80A9862575E400608BB8.0001
- Page: https://openairdocs.org/proposed/FAA-2009-0294

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for International Aero Engines AG (IAE) V2500-A1, V2527E-A5, V2530-A5, and V2528-D5 turbofan engines. This proposed AD would require reducing the published life limit of certain high-pressure compressor (HPC) stage 9-12 disc assemblies. This proposed AD would also remove from service those HPC stage 9-12 disc assemblies using a drawdown schedule. This proposed AD results from IAE updating the low-cycle-fatigue (LCF) life analysis for certain HPC stage 9-12 disc assemblies. We are proposing this AD to prevent an uncontained failure of the HPC stage 9- 12 disc assembly, resulting in an in-flight engine shutdown and possible damage to the airplane.

## Notices in this docket

- Jun 29, 2009: Notice of proposed rulemaking (NPRM). (first notice), FR document E9-15250, comments due Aug 28, 2009 (https://www.federalregister.gov/documents/2009/06/29/E9-15250/airworthiness-directives-international-aero-engines-ag-iae-v2500-a1-v2527e-a5-v2530-a5-and-v2528-d5)

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