# Proposed AD 2000-NE-41-AD: Rolls-Royce Corporation (Formerly Allison Engine Company) AE 3007A and AE 3007C Model Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2001-19-03
- Action: Notice of proposed rulemaking (NPRM).
- Published: February 22, 2001, 66 FR 11126
- Comments due: April 23, 2001
- Became: [AD 2001-19-03](https://openairdocs.org/ad/2001-19-03)
- Docket: 2000-NE-41-AD
- FR document: 01-4393
- Official PDF: https://openairdocs.org/files/sha256/40/1f/401f8c091d8b72562f49a54fdca402f31c8c2ff5f53d23797591f7eec810c34a (from https://www.govinfo.gov/content/pkg/FR-2001-02-22/pdf/01-4393.pdf)
- Federal Register: https://www.federalregister.gov/documents/2001/02/22/01-4393/airworthiness-directives-rolls-royce-corporation-formerly-allison-engine-company-ae-3007a-and-ae
- Page: https://openairdocs.org/proposed/2000-NE-41-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to Rolls-Royce (RR) Corporation (formerly Allison Engine Company) AE 3007A and AE 3007C model engines with high pressure turbine (HPT) 1st to 2nd stage turbine spacer part number (P/N) 23058369 installed. This proposal would require removal and replacement of the HPT 1st to 2nd stage turbine spacer P/N 23058369 before it reaches its new reduced engine cycle life limit. This proposal is prompted by the results of a detailed component analysis that indicates that the HPT 1st to 2nd stage turbine spacer stresses are higher than predicted. The actions specified by the proposed AD are intended to prevent HPT 1st to 2nd stage turbine spacer failure which could result in an uncontained engine failure and damage to the airplane.

## Notices in this docket

- Feb 22, 2001: Notice of proposed rulemaking (NPRM). (first notice), FR document 01-4393, comments due Apr 23, 2001 (https://www.federalregister.gov/documents/2001/02/22/01-4393/airworthiness-directives-rolls-royce-corporation-formerly-allison-engine-company-ae-3007a-and-ae)

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