60658 Federal Register / Vol. 78, No. 191 / Wednesday, October 2, 2013 / Rules and Regulations 

lacking a principal inspector, the manager of 

the local flight standards district office or 

certificate holding district office before 

operating any aircraft complying with this 

AD through an AMOC. 

(g) Subject 

Joint Aircraft Service Component (JASC) 

Code: 2620, Extinguishing System. 

(h) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) of the service information listed in this 

paragraph under 5 U.S.C. 552(a) and 1 CFR 

part 51. 

(2) You must use this service information 

as applicable to do the actions required by 

this AD, unless the AD specifies otherwise. 

(i) Sikorsky Alert Service Bulletin 92–26– 

004, dated June 4, 2012. 

(ii) Reserved. 

(3) For Sikorsky service information 

identified in this AD, contact Sikorsky 

Aircraft Corporation, Attn: Manager, 

Commercial Technical Support, mailstop 

s581a, 6900 Main Street, Stratford, CT 06614; 

telephone (800) 562–4409; email tsslibrary@

sikorsky.com; or at http://www.sikorsky.com. 

(4) You may view this service information 

at FAA, Office of the Regional Counsel, 

Southwest Region, 2601 Meacham Blvd., 

Room 663, Fort Worth, Texas 76137. For 

information on the availability of this 

material at the FAA, call (817) 222–5110. 

(5) You may view this service information 

that is incorporated by reference at the 

National Archives and Records 

Administration (NARA). For information on 

the availability of this material at NARA, call 

(202) 741–6030, or go to: http://

www.archives.gov/federal-register/cfr/ibrlocations.html. 

Issued in Fort Worth, Texas, on September 

17, 2013. 

Gwendolynne O’Connell, 

Acting Directorate Manager, Rotorcraft 

Directorate, Aircraft Certification Service. 

[FR Doc. 2013–23439 Filed 10–1–13; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2010–0562; Directorate 

Identifier 2009–NE–29–AD; Amendment 39– 

17603; AD 2013–19–21] 

RIN 2120–AA64 

Airworthiness Directives; Rolls-Royce 

plc Turbofan Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are superseding 

airworthiness directive (AD) AD 2012– 

04–13, for all Rolls-Royce plc (RR) 

model RB211 Trent 553–61, 553A2–61, 

556–61, 556A2–61, 556B–61, 556B2–61, 

560–61, and 560A2–61; and RB211 

Trent 768–60, 772–60, and 772B–60; 

and RB211-Trent 875–17, 877–17, 884– 

17, 884B–17, 892–17, 892B–17, and 

895–17; and RB211–524G2–T–19, 

–524G3–T–19, –524H–T–36, and 

–524H2–T–19 turbofan engines that 

have a high-pressure (HP) compressor 

stage 1 to 4 rotor disc installed, with a 

certain part number (P/N) installed. AD 

2012–04–13 required repetitive 

inspections of the axial dovetail slots 

and follow-on corrective action 

depending on findings. This new AD 

expands the population of affected 

parts. This AD also changes, for the 

purposes of this AD, the definition of 

‘‘engine shop visit.’’ This AD was 

prompted by reports of additional 

affected HP compressor rotor discs that 

require the same action. We are issuing 

this AD to detect cracks in the HP 

compressor stage 1 and 2 disc posts, 

which could result in failure of the disc 

post and HP compressor blades, damage 

to the engine, and damage to the 

airplane. 

DATES: This AD is effective November 6, 

2013. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of November 6, 2013. 

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 W12–140, Washington, DC 

20590–0001. 

For service information identified in 

this AD, contact Rolls-Royce plc, 

Corporate Communications, P.O. Box 

31, Derby, England, DE248BJ; phone: 

011–44–1332–242424; fax: 011–44– 

1332–245418; email: http://www.rollsroyce.com/contact/civil_team.jsp. You 

may view this service information at the 

FAA, Engine & Propeller Directorate, 12 

New England Executive Park, 

Burlington, MA. For information on the 

availability of this material at the FAA, 

call 781–238–7125. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http://

www.regulations.gov; or in person at the 

Docket Management Facility between 9 

a.m. and 5 p.m., Monday through 

Friday, except Federal holidays. The AD 

docket contains this AD, the mandatory 

continuing airworthiness information 

(MCAI), the regulatory evaluation, any 

comments received, and other 

information. The street address for the 

Docket Office (phone: 800–647–5527) is 

provided in the ADDRESSES section. 

Comments will be available in the AD 

docket shortly after receipt. 

FOR FURTHER INFORMATION CONTACT: 

Frederick Zink, Aerospace Engineer, 

Engine Certification Office, FAA, Engine 

& Propeller Directorate, 12 New England 

Executive Park, Burlington, MA 01803; 

phone: 781–238–7779; fax: 781–238– 

7199; email: frederick.zink@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to supersede AD 2012–04–13, 

Amendment 39–16969 (77 FR 13483, 

March 7, 2012), (‘‘AD 2012–04–13’’). AD 

2012–04–13 applied to the specified 

products. The NPRM published in the 

Federal Register on May 14, 2013 (78 

FR 28161). The NPRM proposed to 

continue to require repetitive 

inspections of the axial dovetail slots 

and follow-on corrective action 

depending on findings. The NPRM also 

proposed to expand the population of 

affected parts, and to change, for the 

purposes of this AD, the definition of 

‘‘engine shop visit. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. The 

following presents the comments 

received on the proposal and the FAA’s 

response to each comment. 

Support for the Proposed AD 

The Boeing Company supports the 

NPRM (78 FR 28161, May 14, 2013) as 

written. 

We made no change to this AD. 

Request To Revise Definition of Engine 

Shop Visit 

American Airlines (AAL) and RR 

requested that we change the definition 

of engine shop visit. The commenters 

noted that the definition of engine shop 

visit in the NPRM (78 FR 28161, May 

14, 2013) differs from that in RR Alert 

Non-Modification Service Bulletin No. 

RB.211–72–AF964, Revision 3, dated 

January 11, 2013. AAL also indicated 

that the definition of engine shop visit 

in the NPRM, if adopted, would 

dramatically increase turn time and 

costs and affect availability of spare 

engines. 

We agree. We revised this AD by 

changing the definition of engine shop 

visit to read: ‘‘For the purpose of this 

AD, an ‘‘engine shop visit’’ is whenever 

the HP compressor rotor is accessible 

and the compressor blades have been 

removed.’’ 


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Federal Register / Vol. 78, No. 191 / Wednesday, October 2, 2013 / Rules and Regulations 60659 

Request To Correct Paragraph 

Designations in Compliance Section 

AAL requested that we correct 

references in the compliance section of 

the NPRM (78 FR 28161, May 14, 2013) 

that did not refer to the correct 

paragraph designation. 

We agree. The references should be to 

‘‘paragraph (f)’’ or ‘‘paragraph (f)(2),’’ as 

applicable, rather than to ‘‘paragraph 

(e).’’ We changed this AD by revising 

several references in the compliance 

section and the Credit for Previous 

Action paragraph from ‘‘paragraph (e)’’ 

to ‘‘paragraph (f)’’ or to ‘‘paragraph 

(f)(2),’’ as applicable. 

Conclusion 

We reviewed the relevant data, 

considered the comments received, and 

determined that air safety and the 

public interest require adopting this AD 

with the changes described. We 

determined that these changes will not 

increase the economic burden on any 

operator or increase the scope of this 

AD. 

Costs of Compliance 

We estimate that this AD affects about 

432 engines installed on airplanes of 

U.S. registry. We also estimate that it 

will take about 20 hours per product to 

comply with this AD. The average labor 

rate is $85 per hour. No parts are 

required. Based on these figures, we 

estimate the cost of the AD on U.S. 

operators to be $734,400. 

Authority for This Rulemaking 

Title 49 of the United States Code 

specifies the FAA’s authority to issue 

rules on aviation safety. Subtitle I, 

Section 106, describes the authority of 

the FAA Administrator. Subtitle VII, 

Aviation Programs, describes in more 

detail the scope of the Agency’s 

authority. 

We are issuing this rulemaking under 

the authority described in Subtitle VII, 

Part A, Subpart III, Section 44701, 

‘‘General requirements.’’ Under that 

section, Congress charges the FAA with 

promoting safe flight 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 

products identified in this rulemaking 

action. 

Regulatory Findings 

We have 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 government and the States, 

or on the distribution of power and 

responsibilities among the various 

levels of government. 

For the reasons discussed above, I 

certify that this AD: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866, 

(2) Is not a ‘‘significant rule’’ under 

DOT Regulatory Policies and Procedures 

(44 FR 11034, February 26, 1979), 

(3) Will not affect intrastate aviation 

in Alaska to the extent 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: 

PART 39—AIRWORTHINESS 

DIRECTIVES 

■ 1. The authority 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 

removing airworthiness directive (AD) 

2012–04–13, Amendment 39–16969 (77 

FR 13483, March 7, 2012) and adding 

the following new AD: 

2013–19–21 Rolls Royce plc: Amendment 

39–17603; Docket No. FAA–2010–0562; 

Directorate Identifier 2009–NE–29–AD. 

(a) Effective Date 

This AD is effective November 6, 2013. 

(b) Affected ADs 

This AD supersedes AD 2012–04–13, 

Amendment 39–16969 (77 FR 13483, March 

7, 2012). 

(c) Applicability 

This AD applies to the following RollsRoyce plc (RR) model turbofan engines that 

have a high-pressure (HP) compressor stage 

1 to 4 rotor disc installed, with a part number 

(P/N) listed in Table 1 to paragraph (c) of this 

AD: 

(1) RB211 Trent 553–61, 553A2–61, 556– 

61, 556A2–61, 556B–61, 556B2–61, 560–61, 

and 560A2–61; and 

(2) RB211 Trent 768–60, 772–60, and 

772B–60; and 

(3) RB211–Trent 875–17, 877–17, 884–17, 

884B–17, 892–17, 892B–17, and 895–17; and 

(4) RB211–524G2–T–19, –524G3–T–19, 

–524H–T–36, and –524H2–T–19. 

TABLE 1 TO PARAGRAPH (c)—AFFECTED HP COMPRESSOR STAGE 1 TO 4 ROTOR DISC P/NS BY ENGINE MODEL

Engine model HP Compressor stage 1 to 4 rotor disc P/N 

1. RB211 Trent 553–61, 553A2–61, 556–61, 556A2–61, 556B–61, 

556B2–61, 560–61, and 560A2-61.

FK30524 or FW88340. 

2. RB211 Trent 768–60, 772–60, and 772B–60 ...................................... FK22745, FK24031, FK23313, FK25502, FK26185, FK32129, 

FW20195, FW20196, FW20197, FW20638, FW23711, FW88695, 

FW88696, FW88697, FW88698, FW88699, FW88700, FW88701, 

FW88702, or FW88703. 

3. RB211 Trent 875–17, 877–17, 884–17, 884B–17, 892–17, 892B–17, 

and 895–17.

FK24009, FK26167, FK32580, FW11590, FW61622, FW88723, 

FW88724, or FW88725. 

4. RB211–524G2–T–19, –524G3–T–19, –524H–T–36, and –524H2–T– 

19.

FK25502, FW20195, FW23711, FW88695, FW88696, or FW88697. 

(d) Unsafe Condition 

We are issuing this AD to detect cracks in 

the HP compressor stage 1 and 2 disc posts, 

which could result in failure of the disc post 

and HP compressor blades, damage to the 

engine, and damage to the airplane. 

(e) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 


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60660 Federal Register / Vol. 78, No. 191 / Wednesday, October 2, 2013 / Rules and Regulations 

(f) Cleaning and Inspection 

(1) Clean and perform a fluorescentpenetrant inspection of the HP compressor 

stage 1 to 4 rotor disc at the first shop visit 

after accumulating 1,000 cycles since new 

(CSN) on the stage 1 to 4 rotor disc or at the 

next shop visit after the effective date of this 

AD, whichever occurs later. 

(2) Use paragraphs 3.A. through 3.E.(11) of 

the Accomplishment Instructions of RR Alert 

Non-Modification Service Bulletin (NMSB) 

No. RB.211–72–AF964, Revision 3, dated 

January 11, 2013, to do the cleaning and 

inspection. 

(3) Thereafter, at every engine shop visit, 

clean and inspect as required by paragraph 

(f)(2) of this AD. 

(4) If on the effective date of this AD, an 

engine with an affected part has 1,000 CSN 

or more, and is in the shop, clean and inspect 

as required by paragraph (f)(2) of this AD 

before returning the engine to service. 

(5) If cracks or anomalies are found during 

the inspection required by paragraph (f)(2) of 

this AD, accomplish the applicable corrective 

actions before returning the engine to service. 

(g) Definition 

For the purpose of this AD, an ‘‘engine 

shop visit’’ is whenever the HP compressor 

rotor is accessible and the compressor blades 

have been removed. 

(h) Credit for Previous Action 

If you performed cleanings and inspections 

before the effective date of this AD using RR 

NMSB No. RB.211–72–AF964, Revision 1, 

dated June 6, 2008, or Revision 2, dated June 

8, 2011, then you met the requirements of 

paragraph (f) of this AD. 

(i) Alternative Methods of Compliance 

(AMOCs) 

The Manager, Engine Certification Office, 

FAA may approve AMOCs for this AD. Use 

the procedures found in 14 CFR 39.19 to 

make your request. 

(j) Related Information 

(1) For more information about this AD, 

contact, contact Frederick Zink, Aerospace 

Engineer, Engine Certification Office, FAA, 

Engine & Propeller Directorate, 12 New 

England Executive Park, Burlington, MA 

01803; phone: 781–238–7779; fax: 781–238– 

7199; email: frederick.zink@faa.gov. 

(2) Refer to European Aviation Safety 

Agency AD No. 2013–0042, dated February 

26, 2013, for related information. You may 

examine this AD on the Internet at http://

www.regulations.gov/

#!documentDetail;D=FAA-2010-0562-0023. 

(k) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) of the service information listed in this 

paragraph under 5 U.S.C. 552(a) and 1 CFR 

part 51. 

(2) You must use this service information 

as applicable to do the actions required by 

this AD, unless the AD specifies otherwise. 

(i) Rolls Royce Alert Non-Modification 

Service Bulletin No. RB.211–72–AF964. 

Revision 3, dated January 11, 2013. 

(ii) None. 

(3) For service information identified in 

this AD, contact Rolls-Royce plc, Corporate 

Communications, P.O. Box 31, Derby, 

England, DE248BJ; phone: 011–44–1332– 

242424; fax: 011–44–1332–249936; email: 

http://www.rolls-royce.com/contact/civil_

team.jsp; or download from https://

www.aeromanager.com. 

(4) You may view this service information 

at the FAA, Engine & Propeller Directorate, 

12 New England Executive Park, Burlington, 

MA 01803. For information on the 

availability of this material at the FAA, call 

781–238–7125. 

(5) You may view this service information 

at the National Archives and Records 

Administration (NARA). For information on 

the availability of this material at NARA, call 

202–741–6030, or go to: http://

www.archives.gov/federal-register/cfr/ibrlocations.html. 

Issued in Burlington, Massachusetts, on 

September 18, 2013. 

Carlos A. Pestana, 

Acting Directorate Assistant Manager, Engine 

& Propeller Directorate, Aircraft Certification 

Service. 

[FR Doc. 2013–23432 Filed 10–1–13; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2011–0155; Directorate 

Identifier 2009–NM–141–AD; Amendment 

39–17581; AD 2013–18–08] 

RIN 2120–AA64 

Airworthiness Directives; The Boeing 

Company Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are superseding 

airworthiness directive (AD) 2004–18– 

06 for certain The Boeing Company 

Model 737–200, –200C, –300, –400, and 

–500 series airplanes. AD 2004–18–06 

required repetitive inspections to find 

fatigue cracking of certain upper and 

lower skin panels of the fuselage, and 

follow-on and corrective actions if 

necessary. AD 2004–18–06 also 

included a terminating action for the 

repetitive inspections of certain 

modified or repaired areas only. This 

new AD adds new inspections for 

cracking of the fuselage skin along 

certain chem-milled lines, and 

corrective actions if necessary. This new 

AD also reduces certain thresholds and 

intervals required by AD 2004–18–06. 

This AD was prompted by new findings 

of vertical cracks along chem-milled 

steps adjacent to the butt joints. We are 

issuing this AD to detect and correct 

fatigue cracking of the skin panels, 

which could result in sudden fracture 

and failure of the skin panels of the 

fuselage, and consequent rapid 

decompression of the airplane. 

DATES: This AD is effective November 6, 

2013. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in the AD 

as of November 6, 2013. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain other publication listed in 

the AD as of October 13, 2004 (69 FR 

54206, September 8, 2004). 

ADDRESSES: For service information 

identified in this AD, contact Boeing 

Commercial Airplanes, Attention: Data 

& Services Management, P.O. Box 3707, 

MC 2H–65, Seattle, Washington 98124– 

2207; telephone 206–544–5000, 

extension 1; fax 206–766–5680; Internet 

https://www.myboeingfleet.com. You 

may review copies of the referenced 

service information at the FAA, 

Transport Airplane Directorate, 1601 

Lind Avenue SW., Renton, Washington. 

For information on the availability of 

this material at the FAA, call 425–227– 

1221. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http://

www.regulations.gov; or in person at the 

Docket Management Facility between 9 

a.m. and 5 p.m., Monday through 

Friday, except Federal holidays. The AD 

docket contains this AD, the regulatory 

evaluation, any comments received, and 

other information. The address for the 

Docket Office (phone: 800–647–5527) is 

Document Management Facility, U.S. 

Department of Transportation, Docket 

Operations, M–30, West Building 

Ground Floor, Room W12–140, 1200 

New Jersey Avenue SE., Washington, 

DC 20590. 

FOR FURTHER INFORMATION CONTACT: 

Wayne Lockett, Aerospace Engineer, 

Airframe Branch, ANM–120S, FAA, 

Seattle Aircraft Certification Office, 

1601 Lind Avenue SW., Renton, 

Washington 98057–3356; phone: 425– 

917–6447; fax: 425–917–6590; email: 

wayne.lockett@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a supplemental notice of 

proposed rulemaking (SNPRM) to 

amend 14 CFR part 39 to supersede AD 

2004–18–06, Amendment 39–13784 (69 

FR 54206, September 8, 2004). AD 

2004–18–06 applied to the specified 

products. The SNPRM published in the 


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