DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 (4910-1 3 -P]

(Docket No

. FAA-2012-0004; Directorate Id ent ifier 2012-NE-01-AD; Amendment 39-17390 ; AD 2013-05-18] RIN 2120-AA64 Airworthiness Directives ; Rolls - Royce pic Turbofan Engines AGENCY: Federal Av iatio n Adm i nistration (FAA), D OT. ACTION: Final rul e; reques t for co mme n ts. SUMMARY: We arc s upersed ing an exist in g airw orthin ess directi ve (AD) for all R o ll sRo yce p ic (RR) RB 2 11 T rent 500 series turbof an eng ines. T hat AD currently requires a
o ne-ti me inspecti on o f the fuel tub es and fuel tub e c lip s for ev idence of damage, wear , and fue l leakage. Thi s AD requir es th e s ame in spec tio n , and adds add it io nal repetiti ve inspec ti o n s . Thi s AD was prompted by additiona l 

### RR e ngin ee ring analy s is . We are issuin g thi s AD to preve nt engine fue l leak s, w hi ch could res ult in engine damage and damage to the a irpl ane. DATES: This AD is effecti ve [IN SERT DATE 1 5 DAYS AFTER DATE OF P UBLI CATIO N IN T HE F ED ERAL REGIST E R]. T he Dir ecto r of the Fede r a l R egister ap proved the incorporation by refere nce of a certain publication li s ted in th e AD as of [IN SERT DATE 1 5 DAYS AFTER DATE OF PUBLI C ATION J N THE FEDERA L REG ISTE R]. W e must rece ive any com me nt s on thi s A D by [IN SERT DATE 45 DAY S A FTER D A TE OF P U BLI CATJ ON IN TH E FE DERAL REGISTER]. A DDRESSES : You may se nd comme nt s, u s in g the procedur es found in 14 CFR 11 .43
and 11 .45 , by any of th e followin g methods:• Federal eRulemakin g Porta l : Go t o http: //www.rcgulation s .Qo v. Follow the in stru c ti o n s f or s u bm i ttin g commen ts.
• Fax: 202-493

- 2251

. • Mail: U.S. Department ofTransportat ion , Docket Operations , M-30, West Bu i lding G round F loor , Room Wl2-140 , 1200 New Je rsey Avenue SE. , Washington , DC 20590.
• Hand De li very: U.S

. Departme n t of T ranspo rtati on, Docket Ope ratio n s, M-30, Wes t B ui ld in g Grou nd Fl oor, Room W 12 -1 40 , 120 0 New J ersey Ave nue SE., Wash i ngton , DC 20590, between 9 a.m. and 5 p.m. , Mon d ay through Friday, except Federal ho lidays. Fo r serv ice i n fom1ation ide n tified in this AD, contact Ro ll s - Royce pic, Corporate Co m m un icat io n s , P.O

. Box 31 , De rby , Eng land, DE248BJ; phone: 01 1-44-1332- 24 2424; fax: 0 11 -44

- 1332

- 249936; or ema il : http://www.ro ll sroyce.com/ co n tactlc iv il

_ team.jsp. You may view th is service information at the FAA , Engi ne & Propeller D irectorat e , 12 New England Executive Park , Burli ngton, MA 01803. Fo r information o n the avai lability of this mate rial at the FAA , call 78 1- 238

- 7125. E xaminin g th e A D Docket You may exam ine the A D docket o n the Internet at http: //www .rcaulations

. gov;
or in person at the Docket Manageme nt Fac i lity between 9 a.m. and 5 p.m. , Mo nday through Friday , except Federal holidays. The AD doc ket contai n s this AD , the regulatory
eva luation , any comments rece ived , and other info nnation. T he stree t address fo r the Docket Office (phone: 800

- 647-5527) is in the ADDRESSES section. Co m me nt s will be
a vail ab le in th e A D docket s ho rtl y afte r r eceipt. FOR F U RTH E R INFORMATIO N C ONTA CT: Robert Green, Aerospace E nginee r, Engine Certificatio n Office, FAA , Engi ne 

### & Prope ll er Directorate , 12 New England

2Executive Park, Burlington , MA 01803; phone: 781-238-7754 ; fax: 781-238-7199; email: Robert.Green @ faa.gov. 

### SUPPLEMENTARY INFORMATION: Discussion On January 19 , 2012 , we issued AD 2012-02-04, Amendment 39-16927 (77 FR 6668 , February 9 , 2012), for all RR RB211 Trent 500 series turbofan engines. That AD requires a one-time inspection of the fuel tubes and fuel tube clips for evidence of damage , wear, and fuel leakage. That AD resulted from reports of wear found between the securing clips and the low-pressure (LP) fue l tube outer surface, which reduces the fuel tube wall thickn ess, leading to fracture of the fuel tube and consequent fuel leakage. We issued that AD to prevent engine fuel leaks , which could result in engine damage and damage to the airplane. Actions Since AD was Issued S ince we issued AD 2012-02-04, Amendment 39 -16927 (77 FR 6668, February 9 , 20 12) , RR e ngineering determined that additional repetitive inspections are required. The E uropean Aviation Safety Agency (EASA) has notified us of this unsafe condition and corrective actions in EASA AD 2012-0237R1 , dated November 14 , 2012. Relevant Service Information We r eviewe d RR Alert Non-Modification Service Bulletin (NMSB) RB.211-73- AG948, dated September 28 , 2012. The NMSB d escri bes procedures for inspection and possible removal and replacement of the LP fuel tubes, fuel tube clips , and fuel-to-oil heat exchanger mounts. FAA's Determination We are is s uing this AD because we evaluated all the relevant information and d e termin ed the unsafe condition described pre viously is likely to exist or develop in other products of the same type design. 3

### AD Requirements This AD requires a one-time inspection , and additional repetitive inspections of the fuel tubes , fuel tube clips , and fue l-to-oi l heat exchanger mounts for evidence of damage , wear, and fuel leakage. 

### FAA's Justification and Determination of the Effec tive Date The FAA has found that notice and comment prior to adoption of this rul e is unnecessary b e cause no engines are used on U.S. registered airp lan es. Therefore , we find that good cause ex ists for making this amendment eff e ct i ve in l ess than 30 days. 

### Comments Invited This AD is a final rule that involves requirements aff e cting flight safety , and we did not provide you with notice and an opportunity to provide your comments before it becomes effective. However , we invite you to send any written data, views , or arguments about this AD. Send your comments to an address li sted under the ADDRESSES section. Include the docket number FAA

- 20 12-0004 and directorate identifier 20 1 2-N E -0 1-AD at the beginning of your comments
. We specifica ll y invite comments on the overall regulatory , economic, environmental , and energy aspects of this AD. We will consider all comments received by the closing date and may amend th is AD because of those comments. We will post a ll comments we receive , without change, to ht tp: //www . re gula t io n s .gov, including any personal information you provide. We will also post a report summarizing each substantive verbal contact we receive about this AD. 

### Costs of Compliance We estimate that this AD will not affect any engines installed on airplanes of U.S. registry. Therefore , w e estimate th e cost of this AD to U.S. operators to be $0.

4Authority for this Rulemaking Title 49 of the United States Code specifie s the FAA 's au thority to issue rules on aviation s afety. Subt it le I , Sec ti on 1 06 , describes the authority of the FAA Administrator. Subt it le VII , Aviati on Programs , describes in more detail the scope of the Agency ' s authority. We are issuing this rulemaking under the au th ority described in Subtitle VII, Part A , Subpa rt 

### IJI , Sectio n 44701, "General r equ irements." Under that section , Congress
c harges the FAA with promoting safe fli g ht of c ivil aircraft in air commerce by prescribing regulations for practices, methods , and procedw·es the Administrator finds necessary for safety in air commerce. This regulation is within the scope of that authority because it addresses an unsafe condition that is li kely to exist or develop on products identified in this rulemaking action. Regulatory Find in gs T hi s A D w ill not have federa li sm implications under Executive Order 1 3132. This AD will not have a substantial direct effect on the State s, on the relationship between the national governme nt and the States, or on the distribution of power and responsibilities
amo n g the various levels of government. For the reasons discussed above, I certify th at this AD: 

### (I) Is not a "significa nt regu latory act i on " under Executive Order 12866, (2) Is not a " significant rule" und er DOT Regulatory Policies and Procedures (44 FR II 034 , February 26 , 1979) , (3) Will not affect intrastate aviation in Ala s ka , and (4) W ill not have a significant econom ic im pac t , po s itive o r negative , on a
s ub s tantial number of sma ll enti ties under the criteria of the Regulatory F lexibility Act. Li st of Subjects in 14 CFR Part 39 Ai r transportation, Aircraft, Aviation saf e ty , Incorporation by refere nc e, Safety.


### 5Adoption of the Amendment 

### Accordingly , under the authority delegated to me by the Administrator , the FAA amends part 39 of the Federal Aviation Regulations (14 CFR part 39) as follows: PART 39 -AIRWORTHINESS DIRECTIVES 

### 1. The authority c itation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113 , 44701. 

### § 39.13 [Amended] 

### 2. The FAA amends§ 39.13 by removing airworthiness directive (AD) 2012 -02- 04 , Amendment 39-16927 (77 FR 6668, February 9 , 2012) and adding the fo ll ow in g new AD: 2013 -05-18 Rolls-Royce pic: 

### Amendment 39-17390; Docket No
. FAA-20 12-0004; Directorate Identifier 20 12-NE-0 l-AD. (a) Effective Date 

### This AD is effective [INSERT DATE 15 DAYS AFTER DATE OF PUBLICATION IN THE FEDERAL REGISTER]. (b) Affected ADs 

### This AD supersedes AD 2012-02-04, Amendment 39-16927 (77 FR 6668, February 9 , 2012). (c) Applicability 

### This AD applies to Rolls-Royce plc (RR) RB211 Trent 553-61 , RB211 Trent 553A2-61 , R8211 Trent 556-61, R8211 Trent 556A2-61, R8211 Trent 5568-61 , RB211 Trent 55682-61 , RB211 Trent 560-61, and RB211 Trent 560A2-61 turbofan engines that have any of the following fuel tube part numbers installed: FW57605, FW17689, FW57604 , FK30710 , FW57578 , or FK30713.



### 6

### {d) Unsafe Condition This AD was prompted by reports of wear found between the securing clips and the low-pressure (LP) fuel tube outer surface, which reduces the fuel tube wall thickness , leading to fracture of the fuel tube and consequent fuel leakage. We are issuing this AD to prevent engine fuel leaks, which could result in engine damage and damage to the airplane. (c) 

### Actions and Compliance Unless already done , do the following actions. ( 1) Inspect the LP fuel system of engines that are on wing within 1 , 600 flight hours after February 24 , 2012 , or before the next flight after the effective date of this AD , whichever occurs later. Use the procedures in the Accomplishment Instructions, paragraph 3.A , ofRR Alert Non-Modification Service Bulletin (NMSB) RB.211-73- AG948 , dated September 28, 2012 , to do the inspection. (2) For engines that are in shop for any reason, after the effective date of this AD , inspect the LP fuel system. Use the procedures in the Accomplishment Instructions, paragraph 3.8 , ofRR Alert NMSB RB.211-73-AG948 , dated September 28 , 2012 , to do the inspection. (3) Thereafter, reinspect the LP fuel system within every 6,000 flight hours since last inspection. Reinspection may be on-wing or in the shop. Use the procedures in the Accomplishment Instructions , paragraph 3.A or 3.8, as appropriate , ofRR Alert NMSB RB.211-73-AG948 , dated September 28 , 2012 , to do the inspection. (4) If the LP fuel system fails the inspections required by this AD , replace the part(s) that failed the inspection with hardware eligible for installation. 

### (f) Definitions For the purpose of this AD , a shop visit is the induction of an engine into the shop for maintenance or overhaul. The separation of engine flanges solely for the purposes of
7transporting th e e ngi n e without s ub s e quent e ng in e ma inte nance do es no t co n s titute a n engi ne s hop vis it. (g) Cre di t for Previous Actions You may take credit for the initial inspection re quired by paragraph (e)( I) o f this AD i f you performed the initial in spectio n before th e effec ti ve d ate ofth i s A D using RR Alert NMSB RB.21 1 -73-AG948 , d at ed Septe mber 28 , 20 12; RR NMSB RB .21 1- 73- G723, dated September 26, 2011 , o r R ev is ion I , dated J anuary 31, 20 12 ; o r RR Alert NMSB RB.21l-7 3-AG797 , date d October 26 , 201 1 , o r Revis ion 1 , dated January 31 , 2012 , or Revision 2 , dated June 13 , 2012. ( h) Alternative Methods of Compliance (AMOCs) The Manager , Engine Certification Offic e , FAA , may approve AM OCS for thi s A D
. Use the p roce dures f o und in 14 CFR 39. 1 9 to make yo ur reques t. (i) Related Information (1) For mo re information abo ut thi s AD, contact: Robert Gree n , Aerospace E ngineer, En g in e Cert ific atio n Offi c e, FAA , Engine 

### & Propeller Dir ectorate , 12 New En g land Exec uti ve Park , Burlin gton , MA 0 18 03 ; pho ne: 78 1 -238-7754 ; fax: 78 1-238- 7199; e mail: Rob e n .G r e en @ fa a .go v . (2) Refer to Eu rop ean Aviation Safety Agency AD 2012 -0237 R1 , dated Novembe r 14 , 20 12 , for related information. (j) Material Incorporated by Reference ( 1 ) The Dir ec tor of th e F e dera l Re g ister approve d the incorporati o n by refere nc e of th e serv ice infonnation li sted in this paragrap h under 5 U.S.C. 552(a) an d 1 CFR p art 51. (2) You mu st u se this service infom1ation as app licable to do th e actio ns required by thi s AD , unl ess the A D specifies oth erw ise .


### 8(i) Rolls-Royce plc (RR) Alert Non

- Mod ifi cation Service Bull e tin RB.211 -7 3

- AG948 , dated September 28 , 2012. (ii) R e s e rved. (3) For RR service i nformation ide ntifi e d in this AD , contact Rolls-Royce plc , Co rp orate Communi cat ions , P.O. Box 31 , Derby , England , DE248BJ ; phone: 011-44

- 1332

- 242424 ; fax: 0 11 -4 4- 1 332-249936; email: http://www.rollsroyce. com/ contact/ ci v i 1

_team.j sp. (4) Yo u may v iew this serv ice infonnation at FAA , Engine & Propeller Directorate , 12 New Eng la nd Executive Park, Burlington , MA 01803. For information on the availab ili ty ofthis material at the FAA , call 781-238-7125. (5) You may view this serv ic e inf ormatio n at the National Archives and Records Administration (NARA). For information on the availabili ty of this material at NARA , call 202-741-6030 , o r go to : http:/ /www.arc hi ves.gov/fede ral- regis ter/cfr / ibrlocations.html.

Iss u ed in Burl in gton , Massachusetts , o n March 7 , 2013.

Collee n M. D'A lessandro , Ass i stant Manager, Eng in e & Propeller D irectorate , Aircraft Certification Service.



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