### Version 3.0 (3 /20/2013) 

### [4910-13-P] DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. 

### FAA-2013-0052; Directorate Identifier 2013-NE-02-AD] RIN 2120-AA64 Airworthiness Directives; Rolls-Royce pic Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT. 

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

### SUMMARY: We propose to adopt a new airworthiness directive (AD) for all RollsRoyce plc (RR) RB211-535E4-37 , RB211-535E4-B-37 , RB211-535E4-C-37 , and RB211-535E4-B-75 turbofan engines. This proposed AD was prompted by RR updating the low-cycle-fatigue life analysis for the low pressure turbine (LPT) stage 2 discs. This proposed AD would require removal of affected parts using a drawdown plan. We are proposing this AD to prevent LPT stage 2 disc failure, which could result in uncontained engine damage 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 by any ofthe following methods:
• Federal eRulemaking Portal: Go to http ://www.regu lations.gov and follow the instructions for sending your comments electronically.

### Re: ACTION BY 3/26/13: 13-NE-02-AD, Rolls-Royce pic Turbofan Engines, NPRM --Version 3.0 

## Lit

Legal concurs . Regards, 

# v Drexel Ace Fro m : To : V i nce nt Ben nett to : Drexel Ace ANE- 007 , Off ice o f Reg io nal Co un se l C , James E Gray , John Golinski, Jonathan Galvin, Robert Green , Roger

c H Love, Tara Fitzgerald

Hi Vince , Please see Version 3
.0 , whi ch is attac . .. Drexel Ace/ANE/FAA ANE-11 0, Standards Staff Vincent Bennett/ANE/FAA@FAA , 03/2112013 09:55AM

03/20/2013 02:08 : 32 PM

Cc : Date : Robert Green/ANE/FAA@FAA, John Golinski/ANE/FAA@FAA , Jonathan Galvin/ANE/FAA@FAA, James E Gray/ANE/FAA@FAA, Tara Fitzgerald/ANE/FAA@FAA, Roger H Love/ANE/FAA@FAA 03/20/2013 02 :08 PM Su bj ect : ACTION BY 3/26/13: 13-NE-02-AD, Rolls-Royce pic Turbofan Engines, NPRM --Version 3.0 Hi Vince, Please see Version 3
.0, which is attached for your review 

### I concurrence . Thanks. --Drexel

13ne02n
.doc Drexel Ace Technical Writer-Editor Federal Aviation Administration Air Certification Service Engine & Propeller Directorate Standards Staff, ANE-11 0 Burlington , MA Phone: 781-238-7197 To send us your feedback, click here!

### Re: ACTION BY 3/22/13: 13-NE-02-AD, Rolls-Royce pic Turbofan Engines, NPRM --Version 2.0 G£1 Tara Fitzge ral d ANE 111 R I k. d P 1 . to : Drexel Ace 03/19/2013 02:13PM

- , u em a 1 ng an o 1 cy
Drexel, C . James E Gray, John Golinski, Jonathan Galvin, Robert Green, Roger c. H Love

Bob explained the context for me . 

### I concur with version 2.0
. Tara Fitzgerald Federal Aviation Administration Engine & Propeller Directorate Rulemaking and Policy , ANE-111 12 New England Executive Park Burlington, MA 01803 781-238-7130 Drexel Ace From : Plea se see Version 2
.0 , which is attached for yo . .. Drexel Ace/ANE/FAA ANE-11 0, Standards Staff 03/19/20 13 10:36 : 05 AM
To : Cc: Date: Robert Green/ANE/FAA@FAA, Tara Fitzgerald/ANE/FAA@FAA, Roger H Love/ANE/FAA@FAA, John Golinski/ANE/FAA@FAA , Jonathan Galvin/ANE/FAA@FAA, James E Gray/ANE/FAA@FAA 03/19/2013 10 :36 AM Subj ect: ACTION BY 3/22/13 : 13-NE-02-AD , Rolls-Royce pic Turbofan Engines , NPRM --Version 2
.0 Please see Version 2.0, which is attached for your review 

### I concurrence. Thanks
. --Drexel [attachment "13ne02n
.doc" deleted by Tara Fitzgerald/ANE/FAA] Drexel Ace Technical Writer-Editor Federal Aviation Administration Air Certification Service Engine & Propeller Directorate Standards Staff, ANE-11 0 Burlington , MA Phone: 781-238-7197 To send us your feedback,**click I]_~J~** **!**

### Re: ACTI NPRM -- 3-NE-02-AD, Rolls-Royce pic Turbofan Engines,

Roger H. Love Propulsion Specialist Boston Aircraft Evaluation Group (AEA-BOS-AEG-67) 781-238-7891, fax 7898 03/20/2013 12:14 PM

We value your comments , please fill out the form using the following link: http://www
.faa
.gov/about/office_org/headquarters_offices/avs/stakeholder_feedbacklafs/field/sf_aeg/**Roger~** Love
.. I have reviewed version 2
.0 and concur except f
.. . From : To: Roger H Love/ANE/FAA AEA-BOS-AEG-67, Burlington , MA Drexel Ace/ANE/FAA@FAA, 03/19/2013 1 1:2 9 :54 AM

Cc : James E Gray/ANE/FAA@FAA, John Golinski/ANE/FAA@FAA, Jonathan Galvin/ANE/FAA@FAA, Robert Green/ANE/FAA@FAA, Tara Fitzgerald/ANE/FAA@FAA Date : 03/19/2013 11 :29 AM S u b j ect: Re: ACTION BY 3/22/13 : 13-NE-02-AD, Rolls-Royce pic Turbofan Engines, NPRM --Version 2
.0 I have reviewed version 2.0 and concur except for the spelling of (disk) Disc
. to match the EASA AD and ASB. Also please send me SB72-D365 for my files? Thanks 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/headquarters_offices/avs/stakeholder

_feedbacklafs/field/sf_aeg/
Drexel Ace Please see Ve rsion 2
.0 , which is atta c hed for yo .. . 03/19/2013 10:36:05 AM