# Airworthiness Directives; Rolls-Royce Deutschland Ltd. & Co KG (formerly Rolls-Royce plc), Models Spey 555-15, 555-15H, 555-15N, and 555-15P Turbojet Engines
> **Rule** · Final rule. · Published 2004-11-24 · Effective 2004-12-29 · 69 FR 68251
## Document
- **Document number:** 04-25790
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 69 FR 68251
- **Publication date:** 2004-11-24
- **Effective date:** 2004-12-29
- **FAA docket:** Docket No. 2003-NE-51-AD
## Abstract

The FAA is adopting a new airworthiness directive (AD) for Rolls-Royce Deutschland Ltd. & Co KG (RRD) (formerly Rolls-Royce plc), models Spey 555-15, 555-15H, 555-15N, and 555-15P turbojet engines, with magnesium split low pressure (LP) compressor case, part number (P/ N) EU.73418A installed. This AD requires replacement of the magnesium split LP compressor case with a serviceable compressor case that is a combination of a steel front LP compressor case and a shortened split compressor case. This AD results from several reports of bird ingestion and LP compressor stage 1 rotor blade failures that have resulted in penetration of the magnesium LP compressor case, and damage to the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2004/11/24/04-25790/airworthiness-directives-rolls-royce-deutschland-ltd-and-co-kg-formerly-rolls-royce-plc-models-spey)
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