### Version 3
. 1 (2115 /2013) [4910-13-P] DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2012-1031; Directorate Identifier 2012-NE-31-AD; Amendment**39-~;** 

### AD 200X-XX-XX]

# ~?191**~D>3 l>JS-)'J**  RIN 2120-AA64 Airworthiness Directives; Rolls-Royce Deutschland Ltd & 

### Co KG Turbofan Engines AGENCY: Federal Aviation Administration (FAA) , DOT. ACTION: Final rule. SUMMARY: We are adopting a new airworthiness directive (AD) for certain RollsRoyce Deutschland Ltd & 

### Co KG (RRD) Tay 611-8 turbofan engines. This AD requires inspection and replacement, if necessary , of affected bolts. This AD was prompted by a quality review determination that bolts with reduced material properties may have been installed in some engines. We are issuing this AD to prevent uncontained turbine disc fracture 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 Wl2-140 , Washington, DC 20590-0001. v

ONCU RRENCES ROUT I NG SYMBOL ANE-110

I N I T I ALS/ SURNAME VB enn ett/D A
DATE 212 0113
ROUT I NG SY MBOL ANE-111

INITI ALS/ SU RNAME AStrom /DA

ATE 

# 3/ B /1 3

### Re: ACTION BY 2/21/2013: 12-NE-31-AD, Rolls-Royce Deutschland Ltd 

## & Co 

### KG Turbofan Engines, Final Rule -- Version 3.1 Vince nt Bennett t D 1A 02120120 13 04 32 PM ANE-007 , Offi ce o f Reg iona l Co un se l o: rexe ce : Legal concurs. regards , 

## v Drexel Ace From: To: C1.: James E Gray, John Golinski, Paul Donato, Frederick Zink

.Hi V in ce , Please se e Version 3
. 1 of thi s fi na l rul.
. . Drexel Ace/ANE/FAA ANE-11 0 , Standards Staff Vincent Bennett/ANE/FAA@FAA, 02/15/2 01 3 04 :1 0:28 P M

Cc: James E Gray/ANE/FAA@FAA, John Golinski/ANE/FAA@FAA, Paul Donato/ANE/FAA@FAA, Frederick Zink/ANE/FAA@FAA Date: 02/15/2013 04 : 10PM Subj ect: Re : ACTION BY 2/21/2013: 12-NE-31-AD , Rolls-Royce Deutschland Ltd & Co KG Turbofan Engines , Final Rule --Version 3
. 1 Hi Vince, Please see Version 3.1 of this final rule, attached for your review 

### I concurrence . This version incorporates all of your edits 

### I comments
. The reporting requirement has been deleted. Changes are denoted with revision marks and/or h i ghlighting
. Thanks.

12ne31f
.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! Vincent Bennett Drexel Ace With c omments
. R , Hi Vi n ce , Version 3. 0 is attached for your re view
... 02/11/201311:57:19AM 02/07/2013 02:30 : 16 PM

### Re: ACTION BY 2/11/2013: 12-NE-31-AD, Rolls-Royce Deutschland Ltd & 

### Co 

### KG Turbofan Engines, Final Rule --Version 2.0 Ro g er H Love AEA-BOS -A EG-6 7, Bu rlington , MA 

### to : Drexel Ace C

. Frederick Zink, James E Gray, John Golinski , Paul Donato , Tara

c. Fitzgerald 

### I concur with version 2.0. Roger H. Love Propulsion Specialist Boston Aircraft Evaluation Group (AEA-BOS-AEG-67) 781-238-7891, fax 7898 02/06/2013 08:08 AM

We value your comments, please fill out the form using the following link : http ://www.faa.gov/about/office_org/headquarters_offices/avs/stakeholder_feedback/afs/field/sf_aeg/

Fro m : Vers i on 2.0 is attach e d for your review 

### I concurr. .. Drexel Ace/ANE/FAA ANE-11 0 , Standards Staff ... .. ... ... . .. . . ... . .. . ., 02/05/2013 01 : 57 : 20 PM

To : Cc: Date: Frederick Zink/ANE/FAA@FAA, Tara Fitzgerald/ANE/FAA@FAA, Roger H Love/ANE/FAA@FAA Paul Donato/ANE/FAA@FAA, John Golinski/ANE/FAA@FAA, James E Gray/ANE/FAA@FAA 02/05/2013 01 :57 PM Su b ject: ACTION BY 2/1112013: 12-NE-31-AD, Rolls-Royce Deutschland Ltd & Co KG Turbofan Engines, Final Rule --Version 2.0 Version 2
. 0 is attached for your review 

### I concurrence . This is a Final Rule after notice , based on MCAI. Thanks
. --Drexel [attachment "12ne31f
. doc" deleted by Roger H Love/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. l}_~r_** **!**

### Re: Redirecting to Alan Strom: ACTION BY 2/11/2013: 12-NE-31-AD, Rolls-Royce Deutschland Ltd & 

### Co 

### KG Turbofan Engines, Final Rule -- Version 2.0**~** Alan Stro m to· Drexel Ace 02/07/2013 09 : 16AM Cc: Tara Fitzgerald, James E Gray Drexel, 

### I concur with version 2
. 0
. 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 Drexel Ace From : To: Cc : Date : Hi Al a n , Version 2.0 

### is attached for your re vi ew/

. . . Drexel Ace/ANE/FAA ANE-11 0, Standards Staff Alan Strom/ANE/FAA@FAA Tara Fitzgerald/ANE/FAA@FAA 02/07/2013 07 :56AM 02/07/2013 07:56 :44 AM

Subject: Redirecting to Alan Strom: ACTION BY 2/11/2013 : 12-NE-31-AD , Rolls-Royce Deutschland Ltd 

### & Co KG Turbofan Engines, Final Rule -- Version 2
.0 Hi Alan , Version 2.0 is attached for your review 

### I concurrence . Thank You. --Drexel 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 !

--- -- Forwarded b y Drexel Ace/ANE/ FAA on 02/07/20 1 3 07 :53A M---- - From : Drexel Ace/ANE/FAA ANE-11 0 , Standards Staff