# Airworthiness Directives; BMW Rolls-Royce GmbH Models BR700-710A1-10 and BR700-710A2-20 Turbofan Engines
> **Rule** · Final rule; request for comments. · Published 2001-03-14 · Effective 2001-03-29 · 66 FR 14826
## Document
- **Document number:** 01-5736
- **Category:** airworthiness
- **Manufacturer:** BMW Rolls-Royce GmbH Models BR700-710A1-10 and BR700-710A2-20 Turbofan
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 66 FR 14826
- **Publication date:** 2001-03-14
- **Effective date:** 2001-03-29
- **FAA docket:** Docket No. 2000-NE-48-AD
## Abstract

This amendment adopts a new airworthiness directive (AD) that is applicable to BMW Rolls-Royce (RR) GmbH models BR700-710A1-10 turbofan engines with fan disk part numbers (P/N's) BRR18803, BRR19248, or BRR20791 installed, and BR700-710A2-20 turbofan engines with fan disks P/N's BRR19248 or BRR20791 installed. This action requires initial and repetitive inspections of these fan disks for cracks, and if necessary replacement with serviceable parts. This amendment is prompted by reports of cracks in several fan disks in the dovetail area. The actions specified in this AD are intended to detect cracks in the fan disk, that could result in an uncontained engine failure and damage to the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2001/03/14/01-5736/airworthiness-directives-bmw-rolls-royce-gmbh-models-br700-710a1-10-and-br700-710a2-20-turbofan)
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