# Proposed AD 2003-NE-21-AD: International Aero Engines AG (IAE) V2522-A5, V2524-A5, V2527-A5, V2527E-A5, V2527M-A5, V2530-A5, and V2533-A5 Turbofan Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2003-11-23
- Products: International Aero Engines
- Product type: Engine
- Action: Supplemental notice of proposed rulemaking (SNPRM); reopening of comment period.
- Published: January 17, 2006, 71 FR 2491
- Comments due: March 20, 2006
- Became: [AD 2003-11-23](https://openairdocs.org/ad/2003-11-23)
- Docket: 2003-NE-21-AD
- FR document: E6-379
- Official PDF: https://openairdocs.org/files/sha256/84/42/844255f9816d1c31a45a39ecae5902cfa0f1304dfefd97a464891e8825b40625 (from https://www.govinfo.gov/content/pkg/FR-2006-01-17/pdf/E6-379.pdf)
- Federal Register: https://www.federalregister.gov/documents/2006/01/17/E6-379/airworthiness-directives-international-aero-engines-ag-iae-v2522-a5-v2524-a5-v2527-a5-v2527e-a5
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D675EEA99BFB551F862570F90057BC43.0001
- Page: https://openairdocs.org/proposed/2003-NE-21-AD

## Summary

This notice revises an earlier proposed airworthiness directive (AD) that applies to certain IAE V2522-A5, V2524-A5, V2527- A5, V2527E-A5, V2527M-A5, V2530-A5, and V2533-A5 turbofan engines. That proposal would have required initial and repetitive inspections of the master magnetic chip detector (MCD) or the No. 1, 2, 3 bearing chamber MCD. That proposal would also have required replacing certain No. 3 bearings and replacing or recoating certain high pressure compressor (HPC) stubshaft assemblies as mandatory terminating actions to the repetitive MCD inspections. That proposal resulted from IAE developing a terminating action to the repetitive inspections of the chip detectors. This action revises the proposed rule by expanding its applicability to include additional serial-numbered engines with certain No. 3 bearings installed. We are proposing this AD to prevent failure of the No. 3 bearing, which could result in an in-flight shutdown (IFSD) and smoke in the cockpit and cabin.

## Notices in this docket

- Sep 17, 2003: Notice of proposed rulemaking (NPRM). (first notice), FR document 03-23674, comments due Nov 17, 2003 (https://www.federalregister.gov/documents/2003/09/17/03-23674/airworthiness-directives-international-aero-engines-ag-iae-v2522-a5-v2524-a5-v2527-a5-v2527e-a5)
- Jan 17, 2006: Supplemental notice of proposed rulemaking (SNPRM); reopening of comment period., FR document E6-379, comments due Mar 20, 2006 (https://www.federalregister.gov/documents/2006/01/17/E6-379/airworthiness-directives-international-aero-engines-ag-iae-v2522-a5-v2524-a5-v2527-a5-v2527e-a5)

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