# 14910

- 13 - PI D E P A RTME NT OF TRA NS PORT A TIO N F e deral A v iation Administration 14 C FR Part 39 I Dock
e t N o. F AA-2013-0882;
Dir e ctorate Identifier 2013-NE-29-AO

; Amendment 39-17864

; AD 20 14-12-03] RI N 2120-AA64 Airworthiness Dir ec ti v es
; Rolls-Royce Deutsc

h land Lt d & 

# Co KG Tu r bofa n Engine

s A GENC Y : Federal Aviation Admini

s tration (FAA), DOT. A C TION:

F ina
l ru l e. SU MM A RY: We are adopting

a new airworthiness directive (AD) for a ll Ro ll s-Royce D e utschlan

d Ltd 

# & Co K G ( RR D) BR700-725A 1-12 turbofan engine

s . T his A D requir es r emova

l o f affected

f u e l m e t e rin g u ni ts (FM U s) o n R R D BR 7 0 0-725A

1 - 1 2 e n g in es. T hi s AD was prompted by reports of wear on the receptor

s of the double-ende

d u n ions in the FMU hous

i ng on BR 70 0-725A 1-12
e ngines causing fuel leakage. We are issuing thi s AD to p r event failure of the F M U, which could

l ead to damage to one or more engines and damage to the airplane. O A T E S : This AD becomes effect

i ve

[ I NSERT DAT E 35 D AYS A F TER DATE
O F P U BLICAT

I ON

I N T H E FEDERAL REGISTER]. A DDR ESSES

: For service information identified

in this AD, contact
R o ll s- Ro yce Deutschland Ltd & 

# Co KG

, Eschenweg II, Dahl ewitL:, 15827 Blank

e nfcld e- Mahl ow, Germany; phon e: 49 0 33-7086-1883; fax: 49 0 33-7086-3276. You may view this service infonnation

at the FAA

, Engine
& 

# Pr opeller Directorate,

12 New EnglandExecutive Park, Burlington, MA 01803. For information
on the availabil

i ty of this material
at the FAA

, call 78 1-238-

7 1 25. Ex aminin g t h e AD Docket You may examine the AD dock
e t on the Int ernet at http: // www.

r egu

l ations.gov by searc hin g for and locating Do cket No. F AA-20

1 3- 0 882; or in person at th e Docket Management

F aci lit y bet wee n 9 a.m. and 5 p.m., Monday through Friday, except Federal holiday

s. The AD docket contains this AD

, th e mandator

y continuing airworth

i nes s infonnation

( M CA
I ), the regulatory eva lu ation,

a n y comments

r ece ived, and othe
r information. The addre ss for the Docket Onice (phone: 800-647-5527)

is D ocument M a na gement Faci lit y, U.S. D epartment ofTransportation, Docket Ope
r a ti ons, M-30, West Buildin

g Ground Floor

, Room W 1 2- 140

, 1200 New Jer sey Avenue SE., Washin gto n , D C 20590. FOR FU R T H E R I N FORM
A TIO N CON T AC T : Michael
D avison, Aerospace Eng in ee r , Engine Certification Office, FAA,
E n gine & Pr opelle

r Directorate,

12 New Eng land Executive Park

, Burlin gto n , MA 0 1 803; phone: (781) 238-7 156

; fax: (781) 238- 7 1 99; e m a il: mi chae l.da v i so n @ faa.gov. SU PP LE M EN T A R Y I NF ORM AT
I ON: Di sc u ss i o n We issued

a notice of proposed rulemaking
(N PR M) to amen
d 1 4 CFR part 39 by ad din g an AD that would app

l y to the spec ilied products. The NPRM was published

in the 

### Federal Register on February 14, 20 14 (79 FR 8905
). The N PRM proposed
to corTect an unsafe condition

f o r the specified products. Th e MCAI states: 

### 2

## Co mments 

# Occurrences have been reported of finding wear on the receptors of the double-ended unions in the Fuel Metering Unit (FMU) housing on BR700-725A 1-12 engines. Thi s condition,
if not corrected, could lead to fuel leak resulting
in engine in-flight shutdown and consequent reduced control of the aerop

l ane. We gave the public the opportunity

to participate

in developing this AD. We received no comments
on the NPRM (79 F R 8905, February 14, 20 14 ). Co nclusion 

# We reviewed the available data and determined that air safety and the public interest requir
e adopting this AD as proposed. Costs of Compliance 

# We estimate that this AD affects 24 RRD turbofan engines installed on aircraft of U.S. registry. We a l so est imate that it would take about
6 hours per engine to comply with th i s AD. The average labor rate is $85 per h our. Required parts cost about $293,960 per engine

. Ba sed on these figures, we estimate the cost of this AD on U.S. operators

t o be $7,067,280. A uthority

f o r This Rul e m ak ing 

# Title 49 of the United States Code specifies the FAA's authority
to issue rules on aviation safety. Subtitle

I , section

I 

# 06, describes the authority of the FAA Administrator. ··subtitle Vll: 

# Aviation Programs," describes

in more detail the scope of the Agency's authority. We are issuing this rulemaking under the authority described

in "Subtitle VTT, Part A, 

# Subpart Ill, 

# Section 4470 I: 

# General requirements." Under that

s ection, Congre ss 3charges the FAA with promoting safe Oight of civil aircraft
in air commerce by prescribing regulations for practices, methods, and procedures 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 likely to exist or develop on product

s identified

in this rulemaking action. R eg ul at or y F indin gs W e determined that this AD will not have federalism implications under Executive Order 13132. This AD will not have
a substantial direct effect on the States, on the relationship between the national governme
nt and the States, or on the distribution
of power and responsibilities among the various

l evels of government. F or the reasons discussed above,

I certify this AD: (I)
I s not a "sign ificant regulator

y action" under Executive Order 12866, (2)
I s not a "significa
nt rule" under the DOT R egulato

r y P o lici es and Procedure

s (44 f'R II 034, February 26, 1979), (3) Will not affect intrastate aviation
in Alaska to the exte nt that it justifies making

a regulatory distinction, and (4) Will not have
a significant economic impact, positive or negative, on a substantial number of small entities under the criteria of the Regulatory Flexibility Act. List of Subjects
in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Incorporation
by reference, Safety. Adoption of the Amendment Accordingly, under the authority delegated
to me by the Administrator,
the FAA amends
14 CFR part 39 as follows:

4PART 39- A IRWORTHI NESS DIR ECT IV ES I. The aut horit y citation 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 adding the following

n ew airwort hin ess directive (A D ): 

### 2014-XX- XX Rolls

- Royce Deutschland Ltd & Co 

### KG: Amendment 39-XXXXX; Docket No. FAA-2013-0882;
Dir ectorate
Id entifier 2013-NE-29-AD. ( a ) Effective Date Thi s AD becomes effective

[ I NSERT DATE 35 DAYS AFTER DATE OF P UB LI CATION

I N THE FEDERAL

R EG
I STER). (b) Affected ADs No n e. (c) Applicabilit

y This AD applies to all Roll s-Royce
D eutschland Ltd 

### & Co KG (RRD) BR 700- 725A

I -12 turbofan engines. ( d) Reason Thi s AD was p r ompted by report

s of wear on the receptor

s of the double-ended union

s in the fuel metering unit (FMU) housing on RRD BR700- 725A l-12 engines causing fuel leakage. We are issuing thi s AD to prevent failure of the FMU, which could lead to dama ge
t o one or more engines

a nd damage to the airplane. (e) Act ion s and Co mpli
a n ce Comply\\ ith this AD within the comp liance times specified, unless already done. 

### 5(I) 

### After the effective date of this AD, before the FMU has accumulated 650 flight hours (FHs) since new, or within

3 0 days, whichever occurs later, remove FMU

, part numbe

r (P I N) G3000FMU02

or 

### PIN G3000FMU03,
and replace

it with
a part eligible for installation. (2) Thereafter, remove the FMU at intervals not to exceed 650 F H s and replace

it with
a part e li g ibl e for installation. (f) Installation

P rohibition 

### After the effect

i ve date of this AD, do not install FMU, PIN G3000FMU02, onto any engine, or install any engine with FMU,
P IN G3000FMU02, onto any airplane. (g) D e finiti
o n 

### For the purpose of this AD, an f'MU eligib

l e for insta
ll ation

i s a new FMU or an FMU with P / N G3000FMU

0 3 that ha s accumu

l ated fewer than 650 FH s since in sta ll ation on any airplane or since last repair using RRD Alert Non-Modification Service Bulletin (NMSB) No. B-BR700-73

- A900309,

R evision
I, 

### dat ed November

8, 2013. ( h ) A lt ernativ

e Method

s of Co mplian ce (AM O Cs) 

### The Mana ge r, Engine Certification Office, may approve
A M OCs for this A D . Usc the procedures found in 14 CFR 39.19 to make your request. ( i ) Rel ate d Inform

a tion (I) 

### For more information about this AD, contact Michael Davison, Aerospace Engineer, Engine Certification Office, FAA, Engine
& 

### Propeller Directorate,

12 New England Executive Park, Burlington, MA 0 1803; phone: (781) **238-7156~** 

### fax: (781) 238-7199; email: **michael.davison faa.gov.**  

### 6(2)RefertoMCAIEuropeanAviationSafetyAgencyAD2013-0229R1,datedNovember21,2013formoreinformation.YoumayexaminetheMCAIintheADdocketontheInternetbysearchingforitandlocatingitinDocketNo.FAA-2013-0882.(3)RRDAlertNMSBNo.SB-BR700-73-A900309,Revision1,datedNovember8,2013,whichisnotincorporatedbyreferenceinthisAD,canbeobtainedfromRRD,usingthecontactinformationinparagraph(i)(4)ofthisAD.(4)ForserviceinformationidentifiedinthisAD,contactRolls-RoyceDeutschlandLtd&CoKG,Eschenweg11,Dahlewitz,15827Blankenfelde-Mahlow,Germany;phone:49033-7086-1944;fax:49033-7086-3276.(5)Youmayviewthisserviceinfom1ationattheFAA,Engine&PropellerDirectorate,12NewEnglandExecutivePark,Burlington,MA.ForinformationontheavailabilityofthismaterialattheFAA,call781-238-7125.(j)MaterialIncorporatedbyReferenceNone.IssuedinBurlington,Massachusetts,onjune3,2014.ColleenM.D'Alessandro,AssistantDirectorateManager,Engine&PropellerDirectorate,AircraftCertificationService.7