# DEPARTMENT

OF TRANSPORTATION Federal Aviation Administration 14 CFR

Part

39 [Docket

No. FAA-2016-4551;

Directorate

Identifier 2016-NE-07-AD] RlN 2120-AA64

[4910-13-P] Airworthiness

Directives; Rolls-Royce

Deutschland

Ltd

& 

# Co KG Turbofan Engines AGENCY:



# Federal Aviation Administration

(FAA),

DOT. ACTION:

Notice

of proposed rulemaking

(NPRM). SUMMARY:

We propose

to adopt

a new airworthiness

directive

(AD)

for certain

RollsRoyce Deutschland

Ltd

& 

# Co

KG (RRD) BR700-710Al-10,

-710A2-20,

and -710C4-11 turbofan

engines.

This proposed

AD

was prompted



# by

a seized low-pressure

turbine (LPT)



# fuel shut-offpawl

carrier

caused

by corrosion

of the pawl carrier

pivot

pin.

This proposed

AD would require removing

the pawl carrier

pivot

pins,

part number

(PIN) BRR17117,



# from service

and replacing

them

with

parts eligible

for installation.

We

are proposing

this

AD

to prevent

failure

of the

fuel shut-offmechanisrn,

uncontained

part release,

damage

to the engine,

and damage

to the airplane. DATES:

We must receive comments

on this proposed

AD

by [INSERT

DATE

60 DAYS AFTER

DATE

OF PUBLICATION

IN THE FEDERAL REGISTER]. ADDRESSES:

You

may

send comments

by any

of the following

methods: • Federal eRulemaking

Portal:

Go

to http://www.regulations.gov.

Follow

the instructions

for submitting

comments. • Mail: Docket Management

Facility,

U.S. Department

of Transportation,

1200 New Jersey Avenue

SE., West Building

Ground

Floor,

Room W12-140, Washington,

DC 20590-0001.•HandDelivery:DelivertoMailaddressabovebetween9a.m.and5p.m.,MondaythroughFriday,exceptFederalholidays.•Fax:202-493-2251.ExaminingtheADDocketYoumayexaminetheADdocketontheInternetathttp://www.regulations.govbysearchingforandlocatingDocketNo.orinpersonattheDocketOperationsofficebetween9a.m.and5p.m.,MondaythroughFriday,exceptFederalholidays.TheADdocketcontainsthisproposedAD,themandatorycontinuingairworthinessinformation(MCAI),theregulatoryevaluation,anycommentsreceived,andotherinformation.TheaddressfortheDocketOffice{phone:800-647-5527)isintheADDRESSESsection.CommentswillbeavailableintheADdocketshortlyafterreceipt.FORFURTHERINFORMATIONCONTACT:PhilipHaberlen,AerospaceEngineer,EngineCertificationOffice,FAA,Engine&PropellerDirectorate,1200DistrictAvenue,Burlington,MA01803;phone:781-238-7770;fax:781-238-7199;email:philip.haberlen@faa.gov.SUPPLEMENTARYINFORMATION:CommentsInvitedWeinviteyoutosendanywrittenrelevantdata,views,orargumentsaboutthisNPRM.SendyourcommentstoanaddresslistedundertheADDRESSESsection.Include"DocketNo.FAA-2016A551;DirectorateIdentifieratthebeginningofyourcomments.Wespecificallyinvitecommentsontheoverallregulatory,economic,environmental,andenergyaspectsofthisNPRM.WewillconsiderallcommentsreceivedbytheclosingdateandmayamendthisNPRMbasedonthosecomments.Wewillpostallcommentswereceive,withoutchange,tohttp://wwv.;.regulations.gov,includinganypersonalinformationyouprovide.Wewill2alsopostareportsummarizingeachsubstantiveverbalcontactwithFAApersonnelconcerningthisNPRM.DiscussionTheEuropeanAviationSafetyAgency(EASA),whichistheTechnicalAgentfortheMemberStatesoftheEuropeanCommunity,hasissuedEASAAD2016-0034,datedFebntary24,2016(referredtohereinafteras"theMCAI"),tocorrectanunsafeconditionforthespecifiedproducts.TheMCAIstates:Seizingofafuelshut-offmechanismpawlcarrierwasreported.ThesubsequentinvestigationdeterminedthatcorrosionofthepawlcarrierpivotpinPINBRR17117,wasthefailurecause.Thiscondition,ifnotcorrected,couldleadtolossofthefuelshut-(!ffmechanismfunctionalityandlossoftheengineover-speedprotection,possiblyresultinginreleaseofhigh-energydebris,withconsequentdamageto,and/orreducedcontroloftheairplane.YoumayobtainfurtherinformationbyexaminingtheMCAIintheADdocketontheInternetathttp://www.regulations.govbysearchingforandlocatingDocketNo.FAA-2016-4551.FAA'sDeterminationandRequirementsofThisProposedADThisproducthasbeenapprovedbytheaviationauthorityofGermany,andisapprovedforoperationintheUnitedStates.PursuanttoourbilateralagreementwiththeEuropeanCommunity,EASAhasnotifiedusoftheunsafeconditiondescribedintheMCAIandserviceinformationreferencedabove.WeareproposingthisADbecauseweevaluatedallinformationprovidedbyEASAanddeterminedtheunsafeconditionexistsandislikelytoexistordeveloponotherproductsofthesametypedesign.ThisNPRMwouldrequireremovingthepawlcarrierpivotpin,PINBRR17117,fromserviceandreplacingwithaparteligibleforinstallation.3RelatedServiceInformationRRDhasissuedASBSB-BR700-72-Al01523,Revision3,datedDecember10,2015.Theserviceinformationdescribesproceduresforreplacingthepawlcarrierpivotpins.ThisserviceinformationisreasonablyavailablebecausetheinterestedpartieshaveaccesstoitthroughtheirnormalcourseofbusinessorbythemeansidentifiedintheADDRESSESsection.CostsofComplianceWeestimatethatthisproposedADaffects4enginesinstalledonairplanesofU.S.registry.Wealsoestimatethatitwouldtakeabout3hoursperenginetocomplywiththisproposedAD.Theaveragelaborrateis$85perhour.Requiredpartscostabout$860perengine.Basedonthesefigures,weestimatethecostofthisproposedADonU.S.operatorstobe$4,460.AuthorityforThisRulemakingTitle49oftheUnitedStatesCodespecifiestheFAA'sauthoritytoissuerulesonaviationsafety.SubtitleI,section106,describestheauthorityoftheFAAAdministrator."SubtitleVII:AviationPrograms,"describesinmoredetailthescopeoftheAgency'sauthority.Weareissuingthisrulemakingundertheauthoritydescribedin"SubtitleVII,PartA,SubpartIII,Section44701:Generalrequirements."Underthatsection,CongresschargestheFAAwithpromotingsafeflightofcivilaircraftinaircommercebyprescribingregulationsforpractices,methods,andprocedurestheAdministratorfindsnecessaryforsafetyinaircommerce.Thisregulationiswithinthescopeofthatauthoritybecauseitaddressesanunsafeconditionthatislikelytoexistordeveloponproductsidentifiedinthisrulemakingaction.4RegulatoryFindingsWedeterminedthatthisproposedADwouldnothavefederalismimplicationsunderExecutiveOrder13132.ThisproposedADwouldnothaveasubstantialdirecteffectontheStates,ontherelationshipbetweenthenational GovernmentandtheStates,oronthedistributionofpowerandresponsibilitiesamongthevariouslevelsofgoverrunent.Forthereasonsdiscussedabove,Icertifythisproposedregulation:(1)Isnota"significantregulatoryaction"underExecutiveOrder12866,(2)Isnota"significantrule"undertheDOTRegulatoryPoliciesandProcedures(44FRII034,February26,1979),(3)WillnotaffectintrastateaviationinAlaskatotheextentthatitjustifiesmakingaregulatorydistinction,and(4)Willnothaveasignificanteconomicimpact,positiveornegative,onasubstantialnumberofsmallentitiesunderthecriteriaoftheRegulatoryFlexibilityAct.ListofSubjectsin14CFRPart39Airtransportation,Aircraft,Aviationsafety,Incorporationbyreference,Safety.TheProposedAmendmentAccordingly,undertheauthoritydelegatedtomebytheAdministrator,theFAAproposestoamend14CFRpart39asfollows:PART39-AIRWORTHINESSDIRECTIVES1.Theauthoritycitationforpart39continuestoreadasfollows:Authority:49U.S.C.106(g),40113,44701.§39.13[Amended]2.TheFAAamends§39.13byaddingthefollowingnewairworthinessdirective(AD):5Rolls-RoyceDeutschlandGmbH(TypeCertificatepreviouslyheldbyRolls-RoyceDeutschlandGmbH,formerlyBMWRolls-RoyceGmbH):DocketNo.FAA-2016-4551;DirectorateIdentifier2016-NE-07-AD.(a)CommentsDueDateWemustreceivecommentsby[INSERTDATE60DAYSAFTERDATEOFPUBLICATIONINTHEFEDERALREGISTER].(b)AffectedADsNone.(c)Applicability(!)ThisADappliesto:(i)Rolls-RoyceDeutschland(RRD)BR700-710Al-10engineswithserialnumber(SIN)11505andbelowandwithalow-pressureturbine(LPT)module,partnumber(PIN)M51-l04orPINM51-111,installed;(ii)RRDBR700-710A2-20engineswithSIN12492andbelowandwitl1anLPTmodule,PINM5l-108orPINM5l-lll,installed;(iii)RRDBR700-710C4-llengineswithSIN15277andbelow,withconfigurationstandard71OC4-11engravedontheenginedataplateandwithanLPTmodule,PINM5l-ll2,installed;and(iv)RRDBR700-710C4-llengineswithS/N15329andbelow,withconfigurationstandard71OC4-11110engravedontheenginedataplateandwithanLPTmodule,PINM5l-ll2,installed.(2)Reserved.(d)ReasonThisADwaspromptedbyaseizedLPTfuelshut-offpawlcarriercausedbycorrosionofthepawlcarrierpivotpin.WeareissuingthisADtopreventfailureofthe6fuelshut-offmechanism,uncontainedpartrelease,damagetotheengine,anddamagetotheairplane.(e)ActionsandComplianceComplywiththisADvvithinthecompliancetimesspecified,unlessalreadydone.(I)Within6monthsaftertheeffectivedateofthisAD,removeeachpawlcarrierpivotpin,PINBRR17117,fromserviceandreplacewithaparteligibleforinstallation.(2)Reserved.(I)AlternativeMethodsofCompliance(AMOCs)TheManager,EngineCertificationOffice,FAA,mayapproveAMOCsforthisAD.Usetheproceduresfoundin14CFR39.19tomakeyourrequest.Youmayemailyourrequestto:ANE-AD-AMOC@faa.gov.(g)RelatedInformation(1)FormoreinformationaboutthisAD,contactPhilipHaberlen,AerospaceEngineer,EngineCertificationOffice,FAA,Engine&PropellerDirectorate,1200DistrictAvenue,Burlington,MA01803;phone:781-238-7770;fax:781-238-7199;email:philip.haberlen@faa.gov.(2)RefertoMCAIEuropeanAviation SafetyAgencyAD2016-0034,datedFebruary24,2016,formoreinfonnation.YoumayexaminetheMCAIintheADdocketontheInternetathttp://www.regulations.govbysearchingforandlocatingitinDocketNo.FAA-2016-4551.(3)RRDAlertServiceBulletinSB-BR700-72-Al01523,Revision3,datedDecember10,2015,canbeobtainedfTOmRRDusingthecontactinformationinparagraph(g)(4)ofthisAD.(4)ForserviceinformationidentifiedinthisAD,contactRolls-RoyceDeutschlandLtd&CoKG,EschenwegII,Dahlewitz,15827Blankenfelde-Mahlow,Germany;phone:+49(0)3370862673;fax:+49(0)3370863276.7(5) You

may view

this service infonnation

at the FAA, Engine

& Propeller Directorate,

1200 District Avenue, Burlington,

MA 01803.

For infonnation

on the availability

ofthis material

at the FAA,

call 781-238-7125. Issued

in Burlington, Massachusetts,

on March

25, 2016. Colleen

M.

D' Alessandro, Manager,

Engine

& Propeller Directorate, Aircraft Certification

Service.

8