### DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. 

### FAA-2007-28059; Directorate Identifier 2007-NE-13-AD] RIN 2120-AA64 Airworthiness Directives; Rolls-Royce plc Turbofan Engines 

### AGENCY: Federal Aviation Administration (FAA), DOT. 

### ACTION: Notice ofproposed rulemaking (NPRM). 

### SUMMARY: We propose to supersede an existing airworthiness directive (AD) for all DATE 3/8/ 13



### Rolls-Royce plc (RR) RB211-Trent 553-61 , 553A2-61, 556-61, 556A2-61, 556B-61 , 55682-61,560-61 , 560A2-61, 768-60,772-60, 7728-60, 875-17,877-17,884-17 ,**884B-b::r n~** **AL """'** **;-;c- G**  

### - + 17, 892-17, 892B-17, and 895-17 turbofan engines. The existing AD currently requires inspection ofthe intermediate-pressure (IP) compressor rotor shaft rear balance land for NE-lli 

### cracks. Since we issued that AD, a crack was detected in a Trent 500 IP compressor roto I N lTIALs/ s r G shaft rear balance land during a shop visit, and further engineering evaluation done by RR concluded that the cracking may also exist in Trent 900 engines. This proposed AD would require inspections ofthe IP compressor rotor shaft as required by the existing A . ._...,=""""":---t

### while adding**tepstiti~n-wing** 

### inspections for the Trent 500 engines , and on-wing and in-shop inspections for the Trent 900 engines . We are proposing this AD to detect cracking on the IP compressor rotor shaft rear balance land, which could lead to uncontained engine failure and damage to the airplane. 

### DATES: We must receive comments on this proposed AD by [INSERT DATE 60 DAYS AFTER DATE OF PUBLICATION IN THE FEDERAL REGISTER]. 

### ADDRESSES: You may send comments, using the procedures found in 14 CFR 11.43 and 11.45, by any ofthe following methods:

# I I

. 

### Re: ACTION BY: 2/8/13 - 2007-NE-13-AD - Rolls-Royce RB211 Trent Turbofan Engines- IP Compressor rotor shaft Rear Balance Land. NS - Ver 2.2**~** Roger H Love . AEA-BOS-AEG -67 , Burlington , MA to : Bnan Warner 03/06/2013 10:27 AM C
. Alan Rowe, Alan Strom, Frederick Zink, James E Gray , John

c. Golinski, Jonathan Galvin, Tara Fitzgerald 

### I concur with version 2.2. Roger 

### H. Love Propulsion Specialist Boston Aircraft Evaluation Group (AEA-BOS-AEG-67) 781-238-7891, fax 7898 We value your comments, please fill out the form using the following link: http ://www.faa. gov /about/ office_org/headqua rters_offices/avs/sta keholder _feed backlafs/field/sf_ aeg/
Brian Warner Fred/Roger/Alan , Please review and provide co . .. From: Brian Warner/ANE/FAA ANE-11 0, Standards Staff 03/06/2013 1 0 :23: 02 AM
To: Cc: Frederick Zink/ANE/FAA@FAA, Roger H Love/ANE/FAA@FAA, Alan Strom/ANE/FAA@FAA, Tara Fitzgerald/ANE/FAA@FAA, James E Gray/ANE/FAA@FAA, John Golinski/ANE/FAA@FAA, Jonathan Galvin/ANE/FAA@FAA, Alan Rowe/ANE/FAA@FAA Date : Subject: 03/06/2013 10:23 AM ACTION BY: 2/8/13- 2007-NE-13-AD- Rolls-Royce BR211 Trent Turbofan Engines- IP Compressor rotor shaft Rear Balance Land. NS- Ver 2.2 Fred/Roger/Alan, Please review and provide comment 

### I concurrence at Version 2.2. There are three new changes having to do with SB titles. The new changes are highlighted in green. Please expedite if possible as we are approaching the metric on this one. [attachment "07ne13ns1.doc" deleted by Roger H Love/ANE/FAA] Thanks
... Brian


### Brian M. Warner EP&D SAIB 

## I MCAI Coordinator Technical Writer-Editor Engine & Propeller Directorate Standards Staff, ANE-11 0 Phone: 781-238-7169Brian, 

### Re: ACTION BY: 2/8/13 - 2007-NE-13-AD - Rolls-Royce BR211 Trent Turbofan Engines - IP Compressor rotor shaft Rear Balance Land. NS - Ver 2.2**~** Alan Stro m . ANE - 111, Rulemakin g and Po licy to: Bnan Warner 03/06/2013 10:57 AM C
. Alan Rowe, Frederick Zink, James E Gray, John Golinski, Jonathan

c. Galvin, Roger H Love, Tara Fitzgerald


### I concur with version 2
.2
. Regards, Alan Alan B
. Strom Aerospace Engineer Aircraft Certification Service Engine 

### & Propeller Directorate Standards Staff ANE-110 12 New England Executive Park Burlington , MA 01803 T (781) 238-7143 F (781) 238-7199 Brian Warner
.. ........ . FredfRogertA ia n, Please review and provide co . : . · . ....... 63/()6/261310:23 :6 ? JAM From: To : Cc: Date : Subj ect: Brian Warner/ANE/FAA ANE-11 0, Standards Staff Frederick Zink!ANE/FAA@FAA, Roger H Love/ANE/FAA@FAA, Alan Strom/ANE/FAA@FAA, Tara Fitzgerald/ANE/FAA@FAA, James E Gray/ANE/FAA@FAA, John Golinski/ANE/FAA@FAA, Jonathan Galvin/ANE/FAA@FAA, Alan Rowe/ANE/FAA@FAA 03/06/201310 :23 AM ACTION BY : 2/8/13- 2007-NE-13-AD- Rolls-Royce BR211 Trent Turbofan Engines- IP Compressor rotor shaft Rear Balance Land. NS- Ver 2.2 Fred/Roger/Alan, Please review and provide comment I concurrence at Version 2
.2. There are three new changes having to do with SB titles. The new changes are highlighted in green. Please expedite if possible as we are approaching the metric on this one . [attachment "07ne13ns1
.doc" deleted by Alan Strom/ANE/FM] Thanks
... Brian

### Re: Fw: ACTION BY: 2/12/13- 2007-NE-13-AD- Rolls-Royce BR211 Trent Turbofan Engines - IP Compressor rotor shaft Rear Balance Land. NS - Ver 3.2 []') Vincent Bennett
. ANE-007 , Office of Regiona l Coun se l to: Bnan Warner C
. James E Gray, Frederick Zink, Alan Rowe, John Golinski, Jonathan

c. Galvin Brian : One nit. Once removed from page 9 legal concurs . No need to resend
. Regards , 

# v

From: To: 07ne13ns1 7mar v2. doc
.doc Vince , Please review and provide comment I co . . . Brian Warner/ANE/FAA ANE-11 0 , Standards Staff Vincent BennetUANE/FAA@FAA, 03/07/2013 03:44PM

03/07/2013 01:47 :56

Cc: James E Gray/ANE/FAA@FAA , Frederick Zink!ANE/FAA@FAA, Alan Rowe/ANE/FAA@FAA , John Golinski/ ANE/FAA@FAA, Jonathan Galvin/ AN E/FAA@FAA Date : Subject: Vince, 03/07/2013 01:47PM Re: Fw: ACTION BY: 2/12/13- 2007-NE-13-AD- Rolls-Royce BR211 Trent Turbofan Engines- IP Compressor rotor shaft Rear Balance Land. NS- Ver 3.2
Please review and provide comment I concurrence .
07ne13ns1.doc Thanks
.. . Brian 

### Brian M
. Warner EP&D SAIB 

## I MCAI Coordinator Technical Writer-Editor Engine & Propeller Directorate Standards Staff, ANE-11 0 Phone : 781-238-7169 Fax: 781-238-7199 We value your feedback. Please consider completing the AVS Customer Feedback Form at: http://www
.faa.gov/aboutloffice erg/headquarters offices/avs/stakeholder feedback/air /field/To : Cc: Bee: Su b ject: Fw: 07ne13 Final Version 3
.2 

### Sincerely, Frederick Zink Aerospace Engineer Engine Certification Office
. ANE-142 Tel. 781-238-7779 http://www.faa.gov/aboutloffice_org/headquarters_offices/avs/stakeholder_feedback/air/field/

----- Forwa rded by Frede ri ck Zin k/A N E/FAA on 03/08/2013 1 1 :21 AM ----- From: To : Date: Subject: 

### Fred , Brian , James E Gray/ANE/FM ANE-140 , Engine Certification Office Brian Warner/ANE/FM@FM, Frederick Zink/ANE/FM@FM , 03/08/2013 10 :59 AM Re : 07ne13 Final Version 3
.2


### I concur with 07ne13 grid. Fred- Please print out this checklist and put it on the front of the AD package and give to Karen. Alsoplease print out this email as my concurrence and include it in the folder.
COSPM_Grid_Review Checklist_Rev2

_07ne13
.doc 

### James Gray Aerospace Engineer Engine Certification Office , ANE-142 Office: (781) 238-7742 Cell : (617) 285-6706 Fax : (781) 238-7199 E-mail: james.e
.gray@faa
.gov Brian Warner Brian Warner Frederick Zink Brian Warner James, Attached , please find the final 07ne13 th
.. . Thank you . . . . Bri a n M
. Wa rner EP&D SAIB 

### I MC
.. . Yes, leave the cost as is due to the fact th at som . .. Fred , We're ready for final grid sign off and issue
.. . 03/08/2013 08:2 6 :52 AM 03/08/2013 08 : 1 4:48 AM 03/08/2013 08:11 :45 AM 03/08/2013 07 :46:29 AM