### DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2012-1167; Directorate Identifier 2012-NE-36-AD; Amendment 

## !13

## f't:; o& - 01 

### 39-X.XXX* ; AD**2013- ~**  

### RIN 2120-AA64 Airworthiness Directives; Rolls-Royce Deutschland Ltd & 

### Co KG Turbofan Engines**~** 

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

# ~T.J ACTION: Final rule. SUMMARY: We are adopting a new airworthiness directive (AD) for certain RollsRoyce Deutschland Ltd & 

### Co KG (RRD) models Tay 620-15 and Tay 650-15 turbofan engines. This AD was prompted by RRD recalculating the Declared Safe Cyclic Life (DSCL) for certain low-pressure compressor (LPC) rotor disc assemblies operating to the Plan D Flight Mission. This AD requires removing the affected LPC rotor disc assemblies at a new lower recalculated DSCL. We are issuing this AD to prevent failure of the LPC rotor disc assembly , uncontained engine failure, and damage to the airplane. DATES: This AD becomes effective [INSERT DATE 35 DAYS AFTER DATE OF PUBLICATION IN THE FEDERAL REGISTER]. ADDRESSES: The Docket Operations office is located at Docket Management Facility, U .S . Department of Transportation, 1200 New Jersey Avenue SE. , West Building Ground Floor, Room W12-140 , Washington, DC 20590-0001. FOR FURTHER INFORMATION CONTACT: Frederick Zink, Aerospace Engineer, Engine Certification Office , FAA, Engine & 

### Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803 ; phone: 781-238-7779; fax: 781-238-7199; email: Frederick.zink @ faa. gov. DATE 3/4113

I NI

TIALSISIG RLove/B DATE ?/2 5113

### Re: ACTION BY: 3/4/13- 2012-NE-36-AD- Rolls-Royce Tay 620-15 & 

### Tay 650-15 Turbofan Engines LPC Life Limits. FRAN - Ver 2.0 

## G;l Tara Fitzge rald
. ANE-1 11 , Ru le maki ng a nd Pol icy to: Bnan Warner Cc · Alan Rowe , Frederick Zink , James E Gray, John Golinski , Paul · Donato , Roger H Love Brian, 

### I reviewed version 2
. 0 and concur. Tara Brian Warner 

### A ll : P l ease re vi ew and pro v ide co mment 

### I conc u . .. From: Brian Warner/ANE/FAA ANE-11 0 , Standards Staff 02/26/2013 08:45AM

To: Cc : Frederick Zink!ANE/FAA@FAA , Tara Fitzgerald/ANE/FAA@FAA , Roger H Love/ANE/FAA@FAA , John Golinski/ANE/FAA@FAA , Paul Donato/ANE/FAA@FAA , Alan Rowe/ANE/ FAA@FAA , James E Gray/ANE/FAA@FAA Date: Subject:
All : 02/25/2013 01 :22 PM ACTION BY : 3/4/13 - 2012 - NE-36-AD- Rolls-Royce Tay 620-15 & Tay 650-15 Turbofan Engines LPC Life Limits
. FRAN - Ver 2
.0

Please review and provide comment 

### I concurrence . [attachment "12ne36f
. doc" deleted 

### by Tara Fitzgerald/ANE/FAA] Thanks
.. . Brian 

### Brian M
. Warner Federal Aviation Administration Engine and Propeller Directorate Standards Staff, AN E-11 0 Technical Writer 

### I Editor 12 New England Executive Park Burlington , MA 01803 781-238-7169 brian
.warner@faa
.gov Click here to send us your feedback : http://www
.faa
.gov/about/office erg/headquarters offices/avs/stakeholder feedback/a ir/field/

----- Forwarded by Bria n W arne r /AN E/ FAA o n 02/25/2 0 13 0 1: 1 7 PM ----- From: Brian Warner/ANE/FAA ANE - 11 0 , Standards Staff To : Fre d erick Zink!ANE/FAA@FAA , James E Gray/ANE/FAA@FAA ,

### Re: ACTION BY: 3n/13- 2012-NE-36-AD- Rolls-Royce Tay 620-15 

### & Tay 650-15 Turbofan Engines LPC Life Limits. FRAN - Ver 3.0 

# til Vincent Bennett
. ANE 007 Off. f R . 1 C 1 to: Bnan Warner 03/04/2013 10:37 AM

- , 1 ce o eg1ona ounse C
. Alan Rowe, Frederick Zink , James E Gray, John Golinski, Jonathan

c. Galvin, Paul Donato Concur
. However, you need a period on Summary line 

### 6 after DCSL. Regards, 

## v Brian Warner Good Morning Vince , Please review an d provide
... From : To: Brian Warner/ANE/FAA ANE-11 0 , Standards Staff Vincent Bennett/ANE/FAA@FAA, 0 3/01/2013 06:51:31 AM

Cc : Date : Frederick Zink!ANE/FAA@FAA , James E Gray/ANE/FAA@FAA, Jonathan Galvin/ANE/FAA@FAA, Paul Donato/ANE/FAA@FAA, Alan Rowe/ANE/FAA@FAA , John Golinski/ANE/FAA@FAA 03/01/2013 06:51AM Su b j ect: ACTION BY: 3/7/13- 2012-NE-36-AD- Rolls-Royce Tay 620-15 & Tay 650-15 Turbofan Engines LPC Life Limits
. FRAN - Ver 3.0 Good Morning Vince, Please review and provide comment 

### I concurrence on the attached AD
.

12ne36f.doc Thanks
... Brian 

### Brian M
. Warner Federal Aviation Administration Engine and Propeller Directorate Standards Staff, ANE-11 0 Technical Writer 

### I Editor 12 New England Executive Park Burlington , MA 01803 781-238 -7169 brian.warner@faa.gov Click here to send us your feedback : http://www
.faa.gov/about/office org/headguarters offices/avs/stakeholder feedback/air/field/ -----Forwarded by Brian Warner /ANE/FAA on 03/01 /2 013 06:47AM----- From : To: Brian Warner/ANE/FAA ANE-110, Standards Staff Frederick Zink/ANE/FAA@FAA, James E Gray/ANE/FAA@FAA,

# I Re: ACTION BY: 3/4/13- 2012-NE-36-AD- Rolls-Royce Tay 620-15 & 

### Tay 650-15 Turbofan Engines LPC Life Limits. FRAN - Ver 2.0 [)


# - Roger H Love
. AEA-BOS-AEG-67 , Burl ingto n , MA to: Bnan Warner 02/25/2013 01:48PM C
. Alan Rowe , Frederick Zink, James E Gray , John Golinski , Paul

c . Donato, Tara Fitzgerald Brian, 

### I concur with version 2.0
. 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:llwww
.faa
. govlaboutloffice_orglheadquarters_offices/avs/stakeholder_feedbacklafslfieldlsf_aegl
Brian Warner All : Pleas e rev iew and provi de comment 

### I concu ... From: Brian Warner/ANE/FAA ANE-11 0 , Standards Staff 02125/2013 01 :22 :59 PM
To: Cc: Frederick Zink/ANE/FAA@FAA , Tara Fitzgerald/ANE/FAA@FAA , Roger H Love/ANE/FAA@FAA John Golinski/ANE/FAA@FAA , Paul Donato/ANE/FAA@FAA , Alan Rowe/ANE/FAA@FAA , James E Gray/ANE/FAA@FAA Date : Subject: All : 02/25/2013 0 1:22 PM ACTION BY : 3/4/13- 2012-NE-36-AD- Rolls-Royce Tay 620-15 & Tay 650-15 Turbofan Engines LPC Life Limits
. FRAN - Ver 2
.0

Please review and provide comment 

### I concurrence . [attachment " 12ne36f
.doc" deleted by Roger H LoveiANEIFAA] Thanks
. . . Brian 

### Brian M. Warner Federal Aviation Administration Engine and Propeller Directorate Standards Staff , ANE-110 Technical Writer I Ed itor 12 New England Execut ive Park Burlington , MA 01803 781-238-7169 brian.warne r @faa. gov