# Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG Turbofan Engines
> **Rule** · Final rule. · Published 2012-09-14 · Effective 2012-10-19 · 77 FR 56756
## Document
- **Document number:** 2012-22533
- **Category:** airworthiness
- **Manufacturer:** Rolls-Royce Deutschland Ltd & Co KG Turbofan
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 77 FR 56756
- **Publication date:** 2012-09-14
- **Effective date:** 2012-10-19
- **FAA docket:** Docket No. FAA-2012-0008
## Abstract

We are adopting a new airworthiness directive (AD) for certain Rolls-Royce Deutschland Ltd & Co KG (RRD) BR700-715A1-30, BR700-715B1- 30, and BR700-715C1-30 turbofan engines. This AD was prompted by the discovery of a manufacturing defect on certain part number (P/N) and serial number (S/N) low-pressure (LP) compressor booster rotors. This AD requires initial and repetitive fluorescent penetrant inspections of certain P/N and S/N LP compressor booster rotors and rework or replacement of them as terminating action to the repetitive inspections. We are issuing this AD to prevent failure of the LP compressor booster rotor, uncontained engine failure, and damage to the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/09/14/2012-22533/airworthiness-directives-rolls-royce-deutschland-ltd-and-co-kg-turbofan-engines)
---
*AI Analytics · CC0 1.0*