DEPARTMENTOFTRANSPORTATIONFederalAviationAdministration14CFRPart39[DocketNo.FAA-2014-0561;DirectorateIdentifier2014-NE-12-AD]RIN2120-AA64AirworthinessDirectives;Rolls-RoyceplcTurbofanEnginesAGENCY:FederalAviationAdministration(FAA),DOT.ACTION:Noticeofproposedrulemaking(NPRM).14910-13-PlSUMMARY:Weproposetosupersedeairworthinessdirective(AD)2015-04-03thatappliestocertainRolls-Roycepic(RR)RB211Trent768-60,772-60,and7728-60turbofanengines.AD2015-04-03requiresinspectionofthesealingsleeveonthehighpressure/intermediate-pressure(HP/IP)turbinesupportinternaloilfeedtubeandremovalofthosesealingsleevesaffectedbyAD2015-04-03.ThisproposedADwouldrequireremovalofeithertheaffectedsealingsleeveonlyorboththeaffectedsealingsleeveandtheoilfeedtube.WeareproposingthisADtopreventfailureoftheHP/IPturbinesupportinternaloilfeedtube,whichcouldleadtouncontainedenginefailureanddamagetotheairplane.DATES:WemustreceivecommentsonthisproposedADby[INSERTDATE60DAYSAFTERDATEOFPUBLICATIONINTHEFEDERALREGISTER].ADDRESSES:Youmaysendcomments,usingtheproceduresfoundin14CFR11.43and11.45,byanyofthefollowingmethods:•FederaleRulemakingPortal:Gotohttp://www.regulations.gov.Followtheinstructionsforsubmittingcomments.•Fax:202-493-2251.•Mail:U.S.DepartmentofTransportation,DocketOperations,M-30,WestBuildingGroundFloor,RoomW12-140,1200NewJerseyAvenueSE.,Washington,DC20590.•HandDelivery:DelivertoMailaddressabovebetween9a.m.and5p.m.,MondaythroughFriday,exceptFederalholidays.ForserviceinformationidentifiedinthisproposedAD,contactRolls-Royceplc,CorporateCommunications,P.O.Box31,Derby,DE248BJ,UnitedKingdom;phone:011-44-1332-242424;fax:011-44-1332-249936;email:http://www.rollsroyce.com/contact/civil_team.jsp;Internet:https://customers.rollsroyce.com/public/rollsroycecare.YoumayviewthisserviceinformationattheFAA,Engine&PropellerDirectorate,12NewEnglandExecutivePark,Burlington,MA.ForinformationontheavailabilityofthismaterialattheFAA,call781-238-7125.ExaminingtheADDocketYoumayexaminetheADdocketontheInternetathttp://www.regulations.govbysearchingforandlocatingDocketNo.FAA-2014-0561;orinpersonattheDocketManagementFacilitybetween9a.m.and5p.m.,MondaythroughFriday,exceptFederalholidays.TheADdocketcontainsthisproposedAD,themandatorycontinuingairworthinessinformation,regulatoryevaluation,anycommentsreceived,andotherinformation.TheaddressfortheDocketOffice(phone:800-647-5527)isintheADDRESSESsection.CommentswillbeavailableintheADdocketshortlyafterreceipt.2FORFURTHERINFORMATIONCONTACT:PhilipHaberlen,AerospaceEngineer,EngineCertificationOffice,FAA,Engine&PropellerDirectorate,12NewEnglandExecutivePark,Burlington,MA01803;phone:781-238-7770;fax:781-238-7199;email:philip.haberlen@faa.gov.SUPPLEMENTARYINFORMATION:CommentsInvitedWeinviteyoutosendanywrittenrelevantdata,views,orargumentsaboutthisproposedAD.SendyourcommentstoanaddresslistedundertheADDRESSESsection.Include"DocketNo.FAA-2014-0561;DirectorateIdentifier2014-NE-12-AD"atthebeginningofyourcomments.Wespecificallyinvitecommentsontheoverallregulatory,economic,environmental,andenergyaspectsofthisproposedAD.WewillconsiderallcommentsreceivedbytheclosingdateandmayamendthisproposedADbecauseofthosecomments.Wewillpostallcommentswereceive,withoutchange,tohttp://www.regulations.gov,includinganypersonalinformationyouprovide.WewillalsopostareportsummarizingeachsubstantiveverbalcontactwereceiveaboutthisproposedAD.DiscussionOnFebruary11,2015,weissuedAD2015-04-03,Amendment39-18105(80FR9380,February23,2015),forcertainRRRB211Trent768-60,772-60,and772B-60turbofanengines.AD2015-04-03requiresinspectionofthesealingsleeveontheHP/IPturbinesupportinternaloilfeedtubeandremovalofthosesealingsleevesaffectedbyAD2015-04-03.AD2015-04-03resultedfromfracturesoftheHP/IPturbinesupportinternal3oilfeedtube.WeissuedAD2015-04-03topreventfailureoftheHP/IPturbinesupportinternaloilfeedtube,whichcouldresultinuncontainedenginefailureanddamagetotheairplane.ActionsSinceAD2015-04-03WasIssuedSinceweissuedAD2015-04-03,Amendment39-18105(80FR9380,February23,2015),wereceivedareportofhighoilconsumptiononanenginethatdidnothaveanaffectedsealingsleeve.Themanufacturer'sinvestigationrevealedthatcertainoilfeedtubethreadedendadaptersweremanufacturedwiththeouterdiameterlargerthanthedrawingmaximum,whichcancausebindingoftheslidingjointandultimatelyleadtolow-cyclefatigue failureoftheHP/IPturbinesupportinternaloilfeedtube.AlsosinceweissuedAD2015-04-03,theEuropeanAviationSafetyAgencyhasissuedAD2015-0105R1,datedAugust18,2015,whichrequiresinspectionoftheaffectedsealingsleeveandremovaloftheaffectedsealingsleeveorremovalofboththeaffectedsealingsleeveandoilfeedtube.RelatedServiceInformationunder1CFRPart51RRhasissuedRRAlertNon-ModificationServiceBulletin(NMSB)No.RB.211-72-AJ035,Revision2,datedAugust10,2015andRRServiceBulletin(SB)No.RB.211-72-H754,datedOctober1,2014.TheAlertNMSBNo.RB.211-72-AJ035,Revision2,datedAugust10,2015,providesguidanceonidentificationofthesealingsleeve,partnumber(PIN)FW15003,andreplacementofthenon-conformingsealingsleeve,PINFW15003,withaconformingsealingsleeve,PINFW15003.TheSBNo.RB.211-72-H754,datedOctober1,2014,providesinformationonthereplacementofthesealingsleeve,PINFWJ5003,andoilfeedtube,PINFW14193,withasealingsleeve,PIN4KH28323andoilfeedtube,PINKH28324.ThisserviceinformationisreasonablyavailablebecausetheinterestedpartieshaveaccesstoitthroughtheirnormalcourseofbusinessorbythemeansidentifiedintheADDRESSESsectionofthisNPRM.FAA'sDeterminationWeareproposingthisADbecauseweevaluatedalltherelevantinformationanddeterminedtheunsafeconditiondescribedpreviouslyislikelytoexistordevelopinotherproductsofthesametypedesign.ProposedADRequirementsThisproposedADwouldrequireremovaloftheaffectedsealingsleeveonlyorboththeaffectedsealingsleeveandtheoilfeedtube.Bothcorrectiveactionseliminatetheunsafeconditioncausedbyaffectedsealingsleevesand/oraffectedoilfeedtubethreadedendadapters.CostsofComplianceWeestimatethatthisproposedADaffects58enginesinstalledonairplanesofU.S.registry.Wealsoestimatethatitwouldtakeabout1.2hoursperenginetocomplywiththisproposedAD.Theaveragelaborrateis$85perhour.Requiredpartscostapproximately$5,850perengine.Basedonthesefigures,weestimatethecostofthisproposedADonU.S.operatorstobe$345,216.AuthorityforthisRulemakingTitle49oftheUnitedStatesCodespecifiestheFAA'sauthoritytoissuerulesonaviationsafety.SubtitleT,Section106,describestheauthorityoftheFAAAdministrator.SubtitleVTT,AviationPrograms,describesinmoredetailthescopeoftheAgency'sauthority.5WeareissuingthisrulemakingundertheauthoritydescribedinSubtitleVII,PartA,SubpartIII,Section44701,"Generalrequirements."Underthatsection,CongresschargestheFAAwithpromotingsafeflightofcivilaircraftinaircommercebyprescribingregulationsforpractices,methods,andprocedurestheAdministratorfindsnecessaryforsafetyinaircommerce.Thisregulationiswithinthescopeofthatauthoritybecauseitaddressesanunsafeconditionthatislikelytoexistordeveloponproductsidentifiedinthisrulemakingaction.RegulatoryFindingsWehavedeterminedthatthisproposedADwouldnothavefederalismimplicationsunderExecutiveOrder13132.ThisproposedADwouldnothaveasubstantialdirecteffectontheStates,ontherelationshipbetweenthenationalGovernmentandtheStates,oronthedistributionofpowerandresponsibilitiesamongthevariouslevelsofgovernment.Forthereasonsdiscussedabove,Icertifythattheproposedregulation:(1)Isnota"significantregulatoryaction"underExecutiveOrder12866,(2)Isnota"significantrule"undertheDOTRegulatoryPoliciesandProcedures(44FR11034,February26,1979),(3)WillnotaffectintrastateaviationinAlaskatotheextentthatitjustifiesmakingaregulatorydistinction,and(4)Willnothaveasignificanteconomicimpact,positiveornegative,onasubstantialnumberofsmallentitiesunderthecriteriaoftheRegulatoryFlexibilityAct.ListofSubjectsin14CFRPart39Airtransportation,Aircraft,Aviationsafety,Incorporationbyreference,Safety.6TheProposedAmendmentAccordingly,undertheauthoritydelegatedtomebytheAdministrator,theFAAproposestoamend14CFRpart39asfollows:PART39-AIRWORTHINESSDIRECTIVES1.Theauthoritycitationforpart39continuestoreadasfollows:Authority:49U.S.C.106(g),40113,44701.§39.13[Amended]2.TheFAAamends§39.13byremovingairworthinessdirective(AD)2015-04-03,Amendment39-18105(80FR9380,February23,2015)("AD2015-04-03"),andaddingthefollowingnewAD:Rolls-Roycepic:DocketNo.FAA-2014-0561;DirectorateIdentifier2014-NE-12-AD.(a)CommentsDueDateWemustreceivecommentsby[INSERTDATE60DAYSAFTERDATEOFPUBLICATIONTNTHEFEDERALREGISTER].(b)AffectedADsThisADsupersedesAD2015-04-03.(c)ApplicabilityThisADappliestoRolls-Roycepic(RR)RB211Trent768-60,772-60,and772B-60turbofanengines,allserialnumbers,exceptthoseengines:(1)thathavehadModification72-H754appliedinproduction,or(2)thathavebeenmodifiedinaccordancewithRRServiceBulletin(SB)No.RB.211-72-H754,datedOctoberI,2014,or7(3)withsealingsleeve,partnumber(PIN)FW15003,withmarkings102013,112013,or102013L.(d)UnsafeConditionThisADwaspromptedbyfracturesofthehigh-pressure/intermediatepressure(HP/IP)turbinesupportinternaloilfeedtube.WeareissuingthisADtopreventfailureoftheHP/IPturbinesupportinternaloilfeedtube,whichcouldresultinuncontainedenginefailureanddamagetotheairplane.(e)ComplianceComplywiththisADwithinthecompliancetimesspecified,unlessalreadydone.(1)Ifsealingsleeve,PINFW15003,isinstalledwithoutmarkings102013,112013,or102013L,orifthemarkingscannotbesufficientlyidentified,thenwithin1,600flightcyclesor24monthsaftertheeffectivedateofthisAD,whicheveroccursfirst:(i)Removetheaffectedsealingsleeve,PINFW15003,andreplaceitwithasealingsleeveeligibleforinstallation.Useparagraph3.A.(4)(b)ofRRAlertNonModificationServiceBulletin(NMSB)No.RB.211-72-AJ035,Revision2,datedAugust10,2015,toperformthepartreplacement,or,(ii)Removetheaffectedsealingsleeve,PINFW15003,andtheoilfeedtube,PINFW14193,andreplacewithpartseligibleforinstallation.Useparagraph3.B.or3.C.,asappropriate,ofRRSBNo.RB.211-72-H754,datedOctober1,2014,toperformthepartsreplacement.(2)Reserved.8

# (f)

A

lt ernative

Methods

of Comp

li ance (AMOCs) 

# The Manager,

Engine Certification

Office

, FAA,

may approve

AMOCs

to this AD.

Use

the procedures

found

in

14 CFR 39.19

to make

your request.

You

ma

y email your

r equest

to: ANE-AD-AMOC

@ faa.gov. (g)



# R

e lat

e d Information 

# (I)

For

mor

e information

about

this

AD

, contact

Philip Haberl

en, Aerospace Engineer,

Engine Certification

Office,

FAA, Engine

& 

# Propeller

Di

r ectorate,

12 New England Executive

Park, Burlington,

MA 01803;

phone: 781-238-7770;

fax:

781

- 238- 71 99;

e mail: philip.haberlen

@ faa.gov. (2) Refer toMCAT European

Aviation

Safety Agency

AD

20

1 5-0105R

1

, dated

, August

18

,2 015

, for more information.

You

ma

y exa min

e

th

e MCAI

in the

AD docket o

n

th

e Int

e rnet

at http: //www

.r egulations.gov/#!docketDetai

i ;D

= FAA-2014-0561. (3)

RR Alert NMSB

No. RB.211-72-AJ035

, Revi

s ion

2, dated August

10

, 2015 and

RR

SB

No. RB.211-72-H754,

dated October

I

, 2 014

, can

be obtained

from

RR

, u

s in

g the contact information

in paragraph

(g)(4)

of

thi

s AD

. (4)

For service information

identified

in

thi

s AD

, contact Rolls-Royce

plc, Co rporate

Co mmunications

, P.O.

Box

31, Derby

, D E2

4 8BJ,

U nited Kingdom;

phone: 011-44-1332

- 242

424

; fax: 011-44-1332-249936;

e mail

:http://www.rollsroyce.com/contactlcivil_team.jsp;

Int erne

t: https:

// custome

rs.rollsroyce.com

/ pu

b

li

c

/ rollsroycecare. (5) You

may

view

this

se

r vice information

at the FAA, Engine

& 

# Propeller Directorate,

12 New England Executive

Park, Burlington.

MA.

For information

on

the avai

l ab

ili

ty ofthis material

at the FAA,

ca

ll 781-238-7

1 25. 9I ss ued

in Burlington

, Massachusetts

, on November

2, 2015. Colleen

M.

0

' Alessandro, Directorate

M

a na

ge

r

, Engine

& Propeller Directorate

, A

ir craft

Ce rtification

Service.

10