Federal Register / Vol. 79, No. 55 / Friday, March 21, 2014 / Rules and Regulations 15665 

(2) You must use this service information 

as applicable to do the actions required by 

this AD, unless the AD specifies otherwise. 

(i) Boeing Alert Service Bulletin 747– 

78A2185, dated October 26, 2010. 

(ii) Boeing Alert Service Bulletin 767– 

78A0081, Revision 2, dated April 19, 2001. 

(iii) Boeing Alert Service Bulletin 767– 

78A0088, dated April 19, 2001. 

(iv) Boeing Alert Service Bulletin 767– 

78A0100, dated October 26, 2010. 

(v) Boeing Service Bulletin 747–78A2166, 

Revision 3, dated July 29, 2004. 

(vi) Middle River Aircraft Systems CF6– 

80C2B Service Bulletin 78–1168, Revision 2, 

dated April 19, 2011. 

(3) For Boeing service information 

identified in this AD, contact Boeing 

Commercial Airplanes, Attention: Data & 

Services Management, P.O. Box 3707, MC 

2H–65, Seattle, WA 98124–2207; telephone 

206–544–5000, extension 1; fax 206–766– 

5680; Internet https://

www.myboeingfleet.com. 

(4) For Middle River Aircraft Systems 

service information identified in this AD, 

contact Middle River Aircraft Systems, 

ATTN: Commercial Spares Support, Mail 

Point 46, 103 Chesapeake Park Plaza, 

Baltimore, MD 21220; fax: 410–682–0090; 

email: spares_support@mras-usa.com. 

(5) You may view this service information 

at the FAA, Transport Airplane Directorate, 

1601 Lind Avenue SW., Renton, WA. For 

information on the availability of this 

material at the FAA, call 425–227–1221. 

(6) 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 Renton, Washington, on February 

18, 2014. 

Ross Landes, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2014–04852 Filed 3–20–14; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2013–1015; Directorate 

Identifier 2013–NE–37–AD; Amendment 39– 

17798; AD 2014–05–25] 

RIN 2120–AA64 

Airworthiness Directives; Rolls-Royce 

plc Turbofan Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule; request for 

comments. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for all 

Rolls-Royce plc (RR) RB211–Trent 970– 

84, RB211–Trent 970B–84, RB211–Trent 

972–84, RB211–Trent 972B–84, RB211– 

Trent 977–84, RB211–Trent 977B–84, 

and RB211–Trent 980–84 turbofan 

engines. This AD requires inspections of 

the low-pressure turbine exhaust case 

and support assembly or tail bearing 

housing (TBH) to detect cracks or 

damage. This AD was prompted by an 

RR structural re-analysis indicating that 

the TBH may not retain full limit load 

capability in all fail-safe conditions. We 

are issuing this AD to prevent failure of 

the TBH, resulting in damage to the 

engine and damage to the airplane. 

DATES: This AD becomes effective April 

7, 2014. 

We must receive comments on this 

AD by May 5, 2014. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in the AD 

as of April 7, 2014. 

ADDRESSES: You may send comments by 

any of the following methods: 

• Federal eRulemaking Portal: Go to 

http://www.regulations.gov and follow 

the instructions for sending your 

comments electronically. 

• Mail: U.S. Department of 

Transportation, 1200 New Jersey 

Avenue SE., West Building Ground 

Floor, Room W12–140, Washington, DC 

20590–0001. 

• Hand Delivery: Deliver to Mail 

address above between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. 

• Fax: 202–493–2251. 

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, or email: http://

www.rolls-royce.com/contact/civil_

team.jsp. 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. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http://

www.regulations.gov by searching for 

and locating Docket No. FAA–2013– 

1015; or in person at the Docket 

Operations office 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 Operations office (phone: 800– 

647–5527) is the same as the Mail 

address provided in the ADDRESSES

section. Comments will be available in 

the AD docket shortly after receipt. 

FOR FURTHER INFORMATION CONTACT: 

Anthony W. Cerra, Jr., Aerospace 

Engineer, Engine Certification Office, 

FAA, Engine & Propeller Directorate, 12 

New England Executive Park, 

Burlington, MA 01803; phone: 781– 

238–7128; fax: 781–238–7199; email: 

anthony.cerra@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Discussion 

The European Aviation Safety Agency 

(EASA), which is the Technical Agent 

for the Member States of the European 

Community, has issued EASA 

Airworthiness Directive 2013–0240 

(correction), dated October 4, 2013 

(referred to herein after as ‘‘the MCAI’’), 

to correct an unsafe condition for the 

specified products. The MCAI states: 

Rolls-Royce performed a re-analysis of the 

structural features of the Trent 900 lowpressure turbine exhaust case and support 

assembly (also known as Tail Bearing 

Housing, or TBH). The result of this reanalysis indicates that the TBH may not 

retain full limit load capability in all fail-safe 

conditions. In addition, during previous 

inspections of Trent 900 TBH mounts and 

vanes, cracks have been found in the outer 

annulus leading edge (LE) fillet of some 

vanes. 

These conditions, if not detected and 

corrected, could lead to disconnection of the 

TBH structural ring from the mounts, 

possibly resulting in damage to, or reduced 

control of, the aeroplane. 

You may obtain further information by 

examining the MCAI in the AD docket 

on the Internet at http://

www.regulations.gov by searching for 

and locating it in Docket No. FAA– 

2013–1015. 

Relevant Service Information 

RR has issued Repeater Technical 

Variance (TV) No. 132043, Issue 1, 

dated March 25, 2013; Repeater TV No. 

132217, Issue 5, dated May 23, 2013; TV 

No. 124801, Issue 2, dated July 4, 2012; 

TV No. 124851, Issue 2, dated July 4, 

2012; Alert Non-Modification Service 

Bulletin (NMSB) No. RB.211–72– 

AG971, Revision 1, dated September 27, 

2013; and Alert NMSB No. RB.211–72– 

AH154, Revision 1, dated June 18, 2013. 

The actions described in this service 

information are intended to correct the 

unsafe condition identified in the 

MCAI. 

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15666 Federal Register / Vol. 79, No. 55 / Friday, March 21, 2014 / Rules and Regulations 

FAA’s Determination and Requirements 

of This AD 

This product has been approved by 

the aviation authority of the United 

Kingdom and is approved for operation 

in the United States. Pursuant to our 

bilateral agreement with the European 

Community, EASA has notified us of 

the unsafe condition described in the 

MCAI and service information 

referenced above. We are issuing this 

AD because we evaluated all 

information provided by EASA and 

determined the unsafe condition exists 

and is likely to exist or develop on other 

products of the same type design. This 

AD requires inspections of the TBH to 

detect cracks or damage. 

FAA’s Determination of the Effective 

Date 

No domestic operators use this 

product. Therefore, we find that notice 

and opportunity for prior public 

comment are unnecessary and that good 

cause exists for making this amendment 

effective in less than 30 days. 

Comments Invited 

This AD is a final rule that involves 

requirements affecting flight safety, and 

we did not precede it by notice and 

opportunity for public comment. We 

invite you to send any written relevant 

data, views, or arguments about this AD. 

Send your comments to an address 

listed under the ADDRESSES section. 

Include ‘‘Docket No. FAA–2013–1015; 

Directorate Identifier 2013–NE–37–AD’’ 

at the beginning of your comments. We 

specifically 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 this AD because of those 

comments. 

We will post all comments we 

receive, without change, to http://

www.regulations.gov, including any 

personal information you provide. We 

will also post a report summarizing each 

substantive verbal contact with FAA 

personnel concerning this AD. Using the 

search function of the Web site, anyone 

can find and read the comments in any 

of our dockets, including, if provided, 

the name of the individual who sent the 

comment (or signed the comment on 

behalf of an association, business, labor 

union, etc.). You may review the DOT’s 

complete Privacy Act Statement in the 

Federal Register published on April 11, 

2000 (65 FR 19477–78). 

Costs of Compliance 

We estimate that this AD will affect 0 

engines installed on airplanes of U.S. 

registry. We also estimate that it would 

take about 8 hours per engine to comply 

with this AD. The average labor rate is 

$85 per hour. Based on these figures, we 

estimate the total cost of this AD to U.S. 

operators is $0. 

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 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 this AD: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866, 

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

the 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. 

We prepared a regulatory evaluation 

of the estimated costs to comply with 

this AD and placed it in the AD docket. 

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 adding 

the following new airworthiness 

directive (AD): 

2014–05–25 Rolls-Royce plc: Amendment 

39–17798; Docket No. FAA–2013–1015; 

Directorate Identifier 2013–NE–37–AD. 

(a) Effective Date 

This AD is effective April 7, 2014. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Rolls-Royce plc (RR) 

RB211–Trent 970–84, RB211–Trent 970B–84, 

RB211–Trent 972–84, RB211–Trent 972B–84, 

RB211–Trent 977–84, RB211–Trent 977B–84, 

and RB211–Trent 980–84 turbofan engines. 

(d) Reason 

This AD was prompted by an RR structural 

re-analysis indicating that the tail bearing 

housing (TBH) may not retain full limit load 

capability in all fail-safe conditions. We are 

issuing this AD to prevent failure of the TBH, 

resulting in damage to the engine and 

damage to the airplane. 

(e) Actions and Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. Performing the on-wing or in-shop 

inspections as specified in paragraph (e)(1) 

satisfies the requirements of this AD. 

(1) Accomplish on-wing or in-shop 

inspections of the TBH as specified in 

paragraphs (e)(1)(i) through (e)(1)(iv) of this 

AD. 

(i) Perform an inspection of the mount lug 

run-outs, before exceeding 2,200 flight cycles 

since new (FCSN). Use Section 3.A., 3.B., or 

3.C. of RR Alert Non-Modification Service 

Bulletin (NMSB) No. RB.211–72–AG971, 

Revision 1, dated September 27, 2013, to do 

the inspection. Thereafter, inspect every 

2,200 flight cycles (FC). 

(ii) For a TBH with 900 FCSN or less on 

the effective date of this AD, perform an 

inspection of the mount lug forging leading 

edge (LE) areas and fail safe catcher, before 

exceeding 1,000 FCSN. Use Section 3.A., or 

3.B. of RR Alert NMSB No. RB.211–72– 

AH154, Revision 1, dated June 18, 2013; or 

Section 3.B. or 3.C. of RR Alert NMSB No. 

RB.211–72–AG971, Revision 1, dated 

September 27, 2013, to do the inspection. 

Thereafter, inspect every 1,000 FC. 

(iii) For a TBH with more than 900 FCSN 

on the effective date of this AD, perform an 

inspection of the mount lug forging LE areas 

and fail safe catcher, within 100 FC. Use 

Section 3.A. or 3.B. of RR Alert NMSB No. 

RB.211–72–AH154, Revision 1, dated June 

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Federal Register / Vol. 79, No. 55 / Friday, March 21, 2014 / Rules and Regulations 15667 

18, 2013; or Section 3.B. or 3.C. of RR Alert 

NMSB No. RB.211–72–AG971, Revision 1, 

dated September 27, 2013, to do the 

inspection. Thereafter, inspect every 1,000 

FC. 

(iv) Perform an inspection of the top core 

vanes, before exceeding 3,800 FCSN. Use 

Section 3.C. of RR Alert NMSB No. RB.211– 

72–AG971, Revision 1, dated September 27, 

2013, to do the inspection. Thereafter, 

inspect every 3,800 FC. 

(2) If any inspection required by paragraph 

(e)(1) of this AD fails, remove the TBH from 

service. 

(3) Remove any TBH from service before 

the TBH exceeds 17,200 FCSN. 

(f) Credit for Previous Actions 

(1) If, before the effective date of this AD, 

you performed inspections and corrective 

actions using RR Alert NMSB No. RB.211– 

72–AG971, dated September 20, 2012 or RR 

Alert NMSB No. RB.211–72–AH154, dated 

June 13, 2013; you met the requirements of 

paragraph (e)(1) of this AD. 

(2) If, before the effective date of this AD, 

the last in-shop inspection of the mount lug 

run-outs was accomplished using Section 

3.C. of RR Alert NMSB No. RB.211–72– 

AG971, dated September 20, 2012, the 

compliance time interval for the next onwing or in-shop inspection of the fail safe 

catcher, as required by paragraphs (e)(1)(ii) 

and (e)(1)(iii) of this AD, may be counted 

from that last in-shop inspection of the 

mount lug run-outs. 

(3) If, before the effective date of this AD, 

you performed inspections and corrective 

actions using RR Technical Variance (TV) 

No. 124801, Issue 2, dated July 4, 2012 or 

earlier versions; or TV No. 124851, Issue 2, 

dated July 4, 2012 or earlier versions; you 

met the requirements of paragraph (e)(1)(i) of 

this AD. 

(4) If, before the effective date of this AD, 

you performed inspections and corrective 

actions using RR TV No. 132043, Issue 1, 

dated March 25, 2013 or earlier versions; or 

TV No. 132217, Issue 5, dated May 23, 2013 

or earlier versions; you met the requirements 

of paragraphs (e)(1)(ii) and (e)(1)(iii) of this 

AD. 

(5) Any inspections and corrective actions 

performed are not terminating action for the 

repetitive inspections required by paragraph 

(e)(1) of this AD. 

(g) Alternative Methods of Compliance 

(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. 

(h) Related Information 

(1) For more information about this AD, 

contact Anthony W. Cerra, Jr., Aerospace 

Engineer, Engine Certification Office, FAA, 

Engine & Propeller Directorate, 12 New 

England Executive Park, Burlington, MA 

01803; phone: 781–238–7128; fax: 781–238– 

7199; email: anthony.cerra@faa.gov. 

(2) Refer to MCAI European Aviation 

Safety Agency AD 2013–0240 (correction), 

dated October 4, 2013, for more information. 

You may examine the MCAI in the AD 

docket on the Internet at http:// 

www.regulations.gov by searching for and 

locating it in Docket No. FAA–2013–1015. 

(3) RR Repeater TV No. 132043, Repeater 

TV No. 132217, TV No. 124801, and TV No. 

124851, which are not incorporated by 

reference in this AD, can be obtained from 

RR, using the contact information in 

paragraph (i)(3) of this AD. 

(4) 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. 

(i) 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 plc Alert Non-Modification 

Service Bulletin (NMSB) No. RB.211–72– 

AG971, Revision 1, dated September 27, 

2013. 

(ii) Rolls-Royce plc Alert NMSB No. 

RB.211–72–AH154, Revision 1, dated June 

18, 2013. 

(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: 011–44–1332–245418, or email: 

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

team.jsp. 

(4) You may view this service information 

at 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. 

(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 

February 27, 2014. 

Colleen M. D’Alessandro, 

Assistant Directorate Manager, Engine & 

Propeller Directorate, Aircraft Certification 

Service. 

[FR Doc. 2014–04952 Filed 3–20–14; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2013–0331; Directorate 

Identifier 2011–NM–170–AD; Amendment 

39–17792; AD 2014–05–19] 

RIN 2120–AA64 

Airworthiness Directives; The Boeing 

Company Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for certain 

The Boeing Company Model 747–200B, 

747–200F, 747–300, 747SP, 747–400, 

and 747–400F series airplanes equipped 

with Rolls-Royce RB211–524 engines; 

and certain Model 767–300 series 

airplanes equipped with Rolls-Royce 

RB211–524 engines. This AD was 

prompted by multiple reports of 

uncommanded thrust reverser unlock 

events. This AD requires replacing 

certain relays and relay sockets, and 

doing wiring changes. For certain 

airplanes, this AD also requires 

installing new relay panels, and 

removing and installing certain 

components. Additionally, this AD 

requires, for certain airplanes, 

accomplishing concurrent actions, 

which include installing an additional 

locking system on the thrust reversers 

and modifying system wiring for inflight fault indications of the thrust 

reverser system. We are issuing this AD 

to prevent an uncommanded thrust 

reverser deployment during takeoff or in 

flight, resulting in decreased airplane 

control and performance, possible 

runway excursions, and failure to climb. 

DATES: This AD is effective April 25, 

2014. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in the AD 

as of April 25, 2014. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain other publication listed in 

this AD as of February 18, 2000 (65 FR 

5222, February 3, 2000). 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain other publication listed in 

this AD as of September 14, 1994 (59 FR 

41647, August 15, 1994). 

ADDRESSES: For service information 

identified in this AD, contact Boeing 

Commercial Airplanes, Attention: Data 

& Services Management, P.O. Box 3707, 

MC 2H–65, Seattle, WA 98124–2207; 

telephone 206–544–5000, extension 1; 

fax 206–766–5680; Internet https://

www.myboeingfleet.com. You may view 

this referenced service information at 

the FAA, Transport Airplane 

Directorate, 1601 Lind Avenue SW., 

Renton, WA. 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; by searching for 

and locating Docket No. FAA–2013– 

0331; or in person at the Docket 

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