# Proposed AD 99-NE-26-AD: Rolls-Royce plc Tay 620-15, Tay 650-15, and Tay 651-54 Series Turbofan Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 99-24-01
- Action: Notice of proposed rulemaking (NPRM).
- Published: June 23, 1999, 64 FR 33435
- Comments due: August 23, 1999
- Became: [AD 99-24-01](https://openairdocs.org/ad/99-24-01)
- Docket: 99-NE-26-AD
- FR document: 99-15904
- Official PDF: https://openairdocs.org/files/sha256/1a/0e/1a0e1d43da67629db47f9553918250935f7a9fdd07b0d4e4d7dc2b99502bd7ab (from https://www.govinfo.gov/content/pkg/FR-1999-06-23/pdf/99-15904.pdf)
- Federal Register: https://www.federalregister.gov/documents/1999/06/23/99-15904/airworthiness-directives-rolls-royce-plc-tay-620-15-tay-650-15-and-tay-651-54-series-turbofan
- Page: https://openairdocs.org/proposed/99-NE-26-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to Rolls-Royce plc Tay 620-15, Tay 650-15, and Tay 651-54 series turbofan engines. This proposal would require initial and repetitive visual inspections of the emergency fuel shutoff cable for broken strands or failed cables, and, if necessary, replacement with serviceable parts. This proposal is prompted by reports of broken strands and failed emergency fuel shutoff cables. The actions specified by the proposed AD are intended to prevent emergency fuel shutoff cable failure, which could result in the non-operation of the emergency fuel shut-off system in the event of a low pressure shaft failure.

## Notices in this docket

- Jun 23, 1999: Notice of proposed rulemaking (NPRM). (first notice), FR document 99-15904, comments due Aug 23, 1999 (https://www.federalregister.gov/documents/1999/06/23/99-15904/airworthiness-directives-rolls-royce-plc-tay-620-15-tay-650-15-and-tay-651-54-series-turbofan)

---
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.