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 

INITIALSISIG 

RLove/B 

DATE 

?/25113 
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 Fitzgerald . 

ANE-1 11 , Rulemaking and Policy 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 All: Please review and prov ide comment I concu ... 

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/air/field/ 

----- Forwarded by Brian Warner/ANE/FAA on 02/25/2013 01:17 PM -----

From: Brian Warner/ANE/FAA 

ANE-11 0, Standards Staff 

To: Frederick 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 - , 1ce 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 and provide ... 

From: 

To: 

Brian Warner/ANE/FAA 

ANE-11 0, Standards Staff 

Vincent Bennett/ANE/FAA@FAA, 

03/01/2013 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 

Subject: 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 /2013 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, Burlington, 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 : Please review and provide 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 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 Roger H LoveiANEIFAA] 

Thanks ... 

Brian 

Brian M. Warner 

Federal Aviation Administration 

Engine and Propeller Directorate 

Standards Staff, ANE-110 

Technical Writer I Editor 

12 New England Executive Park 

Burlington, MA 01803 

781-238-7169 

brian. warner@faa. gov