39156 Federal Register / Vol. 77, No. 127 / Monday, July 2, 2012 / Rules and Regulations 

reference at the National Archives and 

Records Administration (NARA). For 

information on the availability of this 

material at an NARA facility, call 202–741– 

6030, or go to http://www.archives.gov/ 

federal_register/code_of_federal_regulations/ 

ibr_locations.html. 

Issued in Renton, Washington, on June 21, 

2012. 

John P. Piccola, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2012–15898 Filed 6–29–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2008–0224; Directorate 

Identifier 2007–NE–44–AD; Amendment 39– 

17085; AD 2009–07–01 R1] 

RIN 2120–AA64 

Airworthiness Directives; Rolls-Royce 

Deutschland Ltd & Co KG (RRD) 

Turbofan Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule; rescission. 

SUMMARY: We are rescinding an 

airworthiness directive (AD) for RRD 

BR700–715A1–30, BR700–715B1–30, 

and BR700–715C1–30 turbofan engines. 

The existing AD resulted from the need 

to reduce the published life limits of 

high-pressure (HP) turbine stage 1 discs, 

part numbers (P/Ns) BRH20130 and 

BRH20131, and HP turbine stage 2 

discs, P/Ns BRH19423 and BRH19427. 

We are rescinding the existing AD 

because RRD has revised the approved 

published life limits of these parts to the 

same or higher limits as originally 

certified. 

DATES: This AD is effective August 6, 

2012. 

ADDRESSES: 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: 

Mark Riley, Aerospace Engineer, Engine 

Certification Office, FAA, Engine & 

Propeller Directorate, 12 New England 

Executive Park, Burlington, MA 01803; 

phone: 781–238–7758; fax: 781–238– 

7199; email: mark.riley@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to rescind an AD that would 

apply to the specified products. That 

NPRM published in the Federal 

Register on February 21, 2012 (77 FR 

9869). That NPRM proposed to rescind 

AD 2009–07–01 (74 FR 12086, March 

23, 2009) for RRD BR700–715A1–30, 

BR700–715B1–30, and BR700–715C1– 

30 turbofan engines. AD 2009–07–01 

resulted from the need to reduce the 

published life limits of HP turbine stage 

1 discs, P/Ns BRH20130 and BRH20131, 

and HP turbine stage 2 discs, P/Ns 

BRH19423 and BRH19427. We are 

rescinding that AD because RRD has 

revised the approved published life 

limits of these parts to the same or 

higher limits as originally certified. We 

evaluated all information and 

determined that allowing the increase in 

the published part life limits is 

acceptable. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. We 

received no comments on the NPRM (77 

FR 9869, February 21, 2012). 

Conclusion 

We reviewed the relevant data and 

determined that air safety and the 

public interest require adopting the AD 

as proposed. 

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 

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, 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 

rescinding airworthiness directive (AD) 

2009–07–01, Amendment 39–15860 (74 

FR 12086, March 23, 2009): 

2009–07–01 R1 Rolls-Royce Deutschland 

Ltd & Co KG (formerly BMW RollsRoyce GmbH, formerly BMW RollsRoyce Aero Engines): Amendment 39– 

17085; Docket No. FAA–2008–0224; 

Directorate Identifier 2007–NE–44–AD. 

(a) Effective Date 

This AD is effective August 6, 2012. 

(b) Affected ADs 

This AD rescinds AD 2009–07–01 (74 FR 

12086, March 23, 2009). 

(c) Applicability 

This AD applies to Rolls-Royce 

Deutschland Ltd & Co KG BR700–715A1–30, 

BR700–715B1–30, and BR700–715C1–30 

turbofan engines. 


pmangrum on DSK3VPTVN1PROD with RULES
Federal Register / Vol. 77, No. 127 / Monday, July 2, 2012 / Rules and Regulations 39157 

(d) Related Information 

For more information about this AD, 

contact Mark Riley, Aerospace Engineer, 

Engine Certification Office, FAA, Engine & 

Propeller Directorate, 12 New England 

Executive Park, Burlington, MA 01803; 

phone: 781–238–7758; fax: 781–238–7199; 

email: mark.riley@faa.gov. 

(e) Material Incorporated by Reference 

None. 

Issued in Burlington, Massachusetts, on 

June 7, 2012. 

Peter A. White, 

Manager, Engine & Propeller Directorate, 

Aircraft Certification Service. 

[FR Doc. 2012–15961 Filed 6–29–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2010–0748; Directorate 

Identifier 2010–NE–13–AD; Amendment 39– 

17082; AD 2012–12–03] 

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 superseding an 

existing airworthiness directive (AD) for 

all Rolls-Royce plc (RR) models RB211– 

Trent 970–84, 970B–84, 972–84, 972B– 

84, 977–84, 977B–84, and 980–84 

turbofan engines. That AD currently 

requires inspecting the intermediatepressure (IP) shaft rigid coupling splines 

for wear resulting in rearward 

movement of the IP turbine. This AD 

requires the same inspections, and new 

inspections based on possible changes 

in wear rate. This AD was prompted by 

RR identifying wear beyond engine 

manual limits on the abutment faces of 

the splines. RR also determined that an 

additional IP shaft rigid coupling 

configuration requires inspection. We 

are issuing this AD to detect wear on the 

abutment faces of the splines, which 

could result in loss of disc integrity, an 

uncontained failure of the engine, and 

damage to the airplane. 

DATES: This AD is effective July 17, 

2012. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in the AD 

as of July 17, 2012. 

We must receive any comments on 

this AD by August 16, 2012. 

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. 

• Fax: 202–493–2251. 

• Mail: U.S. Department of 

Transportation, Docket Operations, 

M–30, West Building Ground Floor, 

Room W12–140, 1200 New Jersey 

Avenue SE., Washington, DC 20590. 

• Hand Delivery: U.S. Department of 

Transportation, Docket Operations, 

M–30, West Building Ground Floor, 

Room W12–140, 1200 New Jersey 

Avenue SE., Washington, DC 20590, 

between 9 a.m. and 5 p.m., Monday 

through Friday, except Federal holidays. 

For service information identified in 

this AD, contact Rolls-Royce plc, P.O. 

Box 31, Derby, DE24 8BJ, United 

Kingdom; phone: 011 44 1332 242424; 

fax: 011 44 1332 249936; email: http:// 

www.rolls-royce.com/contact/ 

civil_team.jsp; or Web: https:// 

www.aeromanager.com. You may 

review copies of the referenced 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 regulatory 

evaluation, any comments received, and 

other information. The street address for 

the Docket Office (phone: 800–647– 

5527) is in the ADDRESSES section. 

Comments will be available in the AD 

docket shortly after receipt. 

FOR FURTHER INFORMATION CONTACT: 

Alan Strom, Aerospace Engineer, Engine 

Certification Office, FAA, Engine & 

Propeller Directorate, 12 New England 

Executive Park, Burlington, MA 01803; 

email: alan.strom@faa.gov; phone: 781– 

238–7143; fax: 781–238–7199. 

SUPPLEMENTARY INFORMATION: 

Discussion 

On July 26, 2010, we issued AD 2010– 

16–07, Amendment 39–16384 (75 FR 

49368, August 13, 2010), for RR model 

RB211–Trent 970–84, 970B–84, 972–84, 

972B–84, 977–84, 977B–84, and 980–84 

turbofan engines. That AD requires 

inspecting the IP shaft rigid coupling 

splines for wear resulting in rearward 

movement of the IP turbine. That AD 

resulted from RR identifying wear 

beyond engine manual limits on the 

abutment faces of the splines on the 

Trent 900 IP shaft rigid coupling on 

several engines during engine 

disassembly. We issued that AD to 

detect wear on the abutment faces of the 

splines, which could result in loss of 

disc integrity, an uncontained failure of 

the engine, and damage to the airplane. 

Actions Since AD Was Issued 

Since we issued AD 2010–16–07 (75 

FR 49368, August 13, 2010), RR 

determined that engines that are moved 

from one position to another on the 

same airplane or to a different airplane, 

may exhibit a change in the rate of IP 

shaft rigid coupling spline wear. RR also 

determined that an additional IP shaft 

rigid coupling configuration requires 

inspection, because it also exhibits 

wear. 

Relevant Service Information 

We reviewed RR RB211 Trent 900 

Series Propulsion Systems Alert NonModification Service Bulletin (NMSB) 

No. RB.211–72–AG329, Revision 4, 

dated March 23, 2012. That Alert NMSB 

describes procedures for inspecting and 

replacing the IP shaft rigid coupling. 

We also reviewed RR RB211 Trent 

900 Series Propulsion Systems Alert 

NMSB No. RB.211–72–AG871, dated 

March 23, 2012. That Alert NMSB 

describes procedures for inspecting the 

IP shaft rigid coupling on engines that 

have incorporated RR RB211 Trent 900 

Series Propulsion Systems Service 

Bulletin (SB) No. RB.211–72–G585, 

Original Issue, or any revision. Service 

Bulletin No. RB.211–72–G585 is the SB 

that introduces the additional 

configuration that this AD adds. 

FAA’s Determination 

We are issuing this AD because we 

evaluated all the relevant information 

and determined the unsafe condition 

described previously is likely to exist or 

develop in other products of the same 

type design. 

AD Requirements 

This AD requires accomplishing the 

actions specified in the service 

information described previously. 

FAA’s Justification and 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 


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