# Proposed AD FAA-2009-0045: Rolls-Royce Deutschland Ltd & Co KG Model BR700-715A1-30, BR700-715B1-30, and BR700-715C1-30 Turbofan Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2009-21-04
- Products: Rolls-Royce Deutschland
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: February 12, 2009, 74 FR 7004
- Comments due: March 16, 2009
- Became: [AD 2009-21-04](https://openairdocs.org/ad/2009-21-04)
- Docket: FAA-2009-0045 (https://www.regulations.gov/docket/FAA-2009-0045, where comments are filed)
- Project: 2007-NE-53-AD
- FR document: E9-3017
- Official PDF: https://openairdocs.org/files/sha256/d8/66/d86608029beb7c4acf48b8744b2c552e146603b83d609bf456f2bceb3e91caa8 (from https://www.govinfo.gov/content/pkg/FR-2009-02-12/pdf/E9-3017.pdf)
- Federal Register: https://www.federalregister.gov/documents/2009/02/12/E9-3017/airworthiness-directives-rolls-royce-deutschland-ltd-and-co-kg-model-br700-715a1-30-br700-715b1-30
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9D85556DA9F967448625755B00751E8B.0001
- Page: https://openairdocs.org/proposed/FAA-2009-0045

## Summary

We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:

Repair Scheme BRG3086 Issue 1 instructs the repair of the High Pressure (HP) Compressor Front Drum Assembly Damping Grooves. This repair has an impact on the life of the High Pressure (HP) Compressor Front Drum Assembly.

We are proposing this AD to prevent failure of front HP compressor rotors, which could result in an uncontained engine failure and damage to the airplane.

## Notices in this docket

- Feb 12, 2009: Notice of proposed rulemaking (NPRM). (first notice), FR document E9-3017, comments due Mar 16, 2009 (https://www.federalregister.gov/documents/2009/02/12/E9-3017/airworthiness-directives-rolls-royce-deutschland-ltd-and-co-kg-model-br700-715a1-30-br700-715b1-30)

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