# Proposed AD FAA-2004-19157: Withdrawal - Rolls-Royce Deutschland (RRD) (Formerly Rolls-Royce plc) Tay 650-15 Series Turbofan Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Withdrawn
- Products: Rolls-Royce Deutschland
- Product type: Engine
- Action: Proposed rule; withdrawal.
- Published: April 5, 2006, 71 FR 17033
- Comments due: March 29, 2006
- Docket: FAA-2004-19157 (https://www.regulations.gov/docket/FAA-2004-19157, where comments are filed)
- Project: 2004-NE-30-AD
- FR document: E6-4923
- Official PDF: https://openairdocs.org/files/sha256/7e/6d/7e6d0c6de2eebe26ffdc91d76425274b575203db2b7f7e8c654bdab3c69669b0 (from https://www.govinfo.gov/content/pkg/FR-2006-04-05/pdf/E6-4923.pdf)
- Federal Register: https://www.federalregister.gov/documents/2006/04/05/E6-4923/airworthiness-directives-rolls-royce-deutschland-rrd-formerly-rolls-royce-plc-tay-650-15-series
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/3B65B8358F64E40D86257147005500FF.0001
- Page: https://openairdocs.org/proposed/FAA-2004-19157

## Summary

This action withdraws a notice of proposed rulemaking (NPRM). That NPRM proposed a new airworthiness directive (AD) that applies to certain RRD Tay 650-15 series turbofan engines. That proposed action would have required initial and repetitive inspections of the high pressure compressor (HPC) shaft and high pressure turbine (HPT) shaft for spline flank wear. Since we issued that NPRM, the Luftfahrt-Bundesamt (LBA), which is the airworthiness authority for Germany, notified us that the spline flank wear inspections are now downgraded by RRD from "mandatory'' to "recommended''. Accordingly, we withdraw the proposed rule.

## Notices in this docket

- Oct 4, 2004: Notice of proposed rulemaking (NPRM). (first notice), FR document 04-22192, comments due Dec 3, 2004 (https://www.federalregister.gov/documents/2004/10/04/04-22192/airworthiness-directives-rolls-royce-deutschland-rrd-formerly-rolls-royce-plc-tay-650-15-series)
- Apr 5, 2006: Proposed rule; withdrawal., FR document E6-4923, comments due Mar 29, 2006 (https://www.federalregister.gov/documents/2006/04/05/E6-4923/airworthiness-directives-rolls-royce-deutschland-rrd-formerly-rolls-royce-plc-tay-650-15-series)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.