68636 Federal Register / Vol. 76, No. 215 / Monday, November 7, 2011 / Rules and Regulations 

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) 

2006–12–24, Amendment 39–14650 (71 

FR 34807, June 16, 2006), and adding 

the following new AD: 

2011–23–04 General Electric Company: 

Amendment 39–16855; Docket No. 

FAA–2010–1151; Directorate Identifier 

95–ANE–10–AD. 

Effective Date 

(a) This airworthiness directive (AD) is 

effective December 12, 2011. 

Affected ADs 

(b) This AD supersedes AD 2006–12–24, 

Amendment 39–14650 (71 FR 34807, June 

16, 2006). 

Applicability 

(c) This AD applies to General Electric (GE) 

CF6–45A, CF6–45A2, CF6–50A, CF6–50C, 

CF6–50CA, CF6–50C1, CF6–50C2, CF6– 

50C2B, CF6–50C2D, CF6–50E, CF6–50E1, 

CF6–50E2, CF6–50E2B, CF6–80A, CF6– 

80A1, CF6–80A2, and CF6–80A3 turbofan 

engines, including engines marked on the 

engine data plate as CF6–50C2–F and CF6– 

50C2–R, with left-hand side links part 

numbers (P/Ns) 9204M94P01, 9204M94P03, 

9346M99P01, and 9346M99P03, and righthand side links, P/Ns 9204M94P02, 

9204M94P04, 9346M99P02, and 

9346M99P04, installed on the forward engine 

mount assembly (also known as 

Configuration 2). 

Unsafe Condition 

(d) This AD results from a report that GE 

had omitted two affected side link part 

numbers from the applicability of the original 

AD. We are issuing this AD to include those 

part numbers and to prevent failure of the 

side links and possible engine separation 

from the airplane. 

Compliance 

(e) You are responsible for having the 

actions required by this AD performed at 

every exposure of the side link. 

Inspecting and Stripping and Reapplying the 

Sermetel W Coating on the Side Links 

(f) Inspect, strip, and reapply the Sermetel 

W coating on each side link at every 

exposure of the side link. Use the following 

GE service bulletins (SBs): 

(1) For CF6–45/–50 series engines, use 

paragraphs 3.A. through 3.E. of the 

Accomplishment Instructions of CF6–50 S/B 

72–1255, Revision 1, dated June 17, 2009. 

(2) For CF6–80A series engines, use 

paragraphs 3.A. through 3.E. of the 

Accomplishment Instructions of CF6–80A 

S/B72–0797, Revision 1, dated June 17, 2009. 

Definition of Exposure of Side Link 

(g) A side link is exposed when one or 

more bolts that attach the side links to the fan 

frame-front high-pressure compressor case 

are removed or when the bolt attaching the 

side link to the mount platform is removed. 

Alternative Methods of Compliance 

(h) The Manager, Engine Certification 

Office, FAA, may approve alternative 

methods of compliance for this AD. Use the 

procedures found in 14 CFR 39.19 to make 

your request. 

Related Information 

(i) For more information about this AD, 

contact Tomasz Rakowski, Aerospace 

Engineer, Engine Certification Office, FAA, 

Engine & Propeller Directorate, 12 New 

England Executive Park, Burlington, MA 

01803; phone: (781) 238–7735; fax: (781) 

238–7199; email: tomasz.rakowski@faa.gov. 

Material Incorporated by Reference 

(j) You must use the following service 

information to do the actions required by this 

AD, unless the AD specifies otherwise. The 

Director of the Federal Register approved the 

incorporation by reference (IBR) under 5 

U.S.C. 552(a) and 1 CFR part 51 of the 

following service information on the date 

specified: 

(1) GE CF6–50 S/B 72–1255, Revision 1, 

dated June 17, 2009, approved for IBR 

December 12, 2011. 

(2) GE CF6–80A S/B 72–0797, Revision 1, 

dated June 17, 2009, approved for IBR 

December 12, 2011. 

(3) For service information identified in 

this AD, contact GE Aviation M/D Rm. 285, 

One Neumann Way, Cincinnati, OH 45215; 

phone: (513) 552–3272; email: 

geae.aoc@ge.com. 

(4) You may review copies of the 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. 

(5) You may also review copies of the 

service information that is incorporated by 

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 Burlington, Massachusetts, on 

October 26, 2011. 

Peter A. White, 

Manager, Engine & Propeller Directorate, 

Aircraft Certification Service. 

[FR Doc. 2011–28671 Filed 11–4–11; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2010–0683; Directorate 

Identifier 2010–NE–25–AD; Amendment 39– 

16852; AD 2011–23–01] 

RIN 2120–AA64 

Airworthiness Directives; Thielert 

Aircraft Engines GmbH (TAE) 

Reciprocating Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule; request for 

comments. 

SUMMARY: We are superseding an 

existing airworthiness directive (AD) for 

Thielert Aircraft Engines GmbH (TAE) 

Models TAE 125–01 and TAE 125–02– 

99 reciprocating engines. That AD 

currently requires replacement of 

certain part numbers (P/Ns) and serial 

numbers (S/Ns) of clutch assemblies 

due to clutch failure. The failures 

identified above could lead to engine inflight shutdown and loss of control of 

the airplane. This AD requires the same 

actions, but applies the corrective action 

to an additional 244 affected clutch 

assemblies. This AD was prompted by 

TAE identifying additional clutch 

assemblies with nonconforming disc 

springs. We are issuing this AD to 

correct the unsafe condition on these 

products. 

DATES: This AD becomes effective 

November 22, 2011. 

The Director of the Federal Register 

approved the incorporation by reference 

of Thielert Aircraft Engines GmbH 

Service Bulletin (SB) No. TM TAE 125– 

0021, Revision 1, dated August 17, 

2011, and SB No. TM TAE 125–1011 P1, 

Revision 2, dated August 31, 2011, 

listed in the AD as of November 22, 

2011. 

We must receive comments on this 

AD by December 22, 2011. 

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. 


emcdonald on DSK5VPTVN1PROD with RULES
Federal Register / Vol. 76, No. 215 / Monday, November 7, 2011 / Rules and Regulations 68637 

and 5 p.m., Monday through Friday, 

except Federal holidays. 

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 August 16, 2010, we issued AD 

2010–18–02, Amendment 39–16415 (75 

FR 52240, August 25, 2010), for certain 

TAE models TAE 125–01 and TAE 125– 

02–99 reciprocating engines. That AD 

resulted from reports of engine in-flight 

shutdowns. Preliminary investigations 

by TAE showed that nonconforming 

disc springs (improper heat treatment) 

used in a certain production batch of the 

clutch caused the shutdowns. That AD 

requires replacement of certain clutch 

assemblies. We issued that AD to 

prevent in-flight shutdown leading to 

loss of control of the airplane. 

Actions Since Existing AD Was Issued 

Since we issued AD 2010–18–02 (75 

FR 52240, August 25, 2010), TAE 

identified an additional 244 affected 

clutch assemblies with nonconforming 

disc springs. The European Aviation 

Safety Agency (EASA) has issued AD 

2011–0152–E, dated August 18, 2011, 

which requires replacement of 

additional clutch assemblies. 

Relevant Service Information 

We reviewed TAE SB No. TM TAE 

125–0021, Revision 1, dated August 17, 

2011, and SB No. TM TAE 125–1011 P1 

Revision 2, dated August 31, 2011. The 

SBs describe procedures for removing 

the affected clutch assemblies from 

service, and contain the expanded list of 

serial numbers of affected clutch 

assemblies. 

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, for engines with 

affected clutch assemblies that have 

accumulated 100 flight hours or more, 

replacement of affected clutch 

assemblies before further flight, and for 

engines with affected clutch assemblies 

that have accumulated less than 100 

flight hours, replacement of affected 

clutch assemblies before accumulating 

100 flight hours. 

FAA’s Justification and Determination 

of the Effective Date 

An unsafe condition exists that 

requires the immediate adoption of this 

AD. The FAA has found that the risk to 

the flying public justifies waiving notice 

and comment prior to adoption of this 

rule because of TAE identifying 244 

additional clutch assemblies with 

nonconforming disc springs and the 

need for operators to comply with some 

of the AD actions before further flight. 

Therefore, we determined that notice 

and opportunity for public comment 

before issuing this AD are impracticable 

and that good cause exists for making 

this amendment effective in fewer than 

30 days. 

Comments Invited 

This AD is a final rule that involves 

requirements affecting flight safety, and 

we did not provide you with notice and 

opportunity to provide your comments 

before it becomes effective. However, 

we invite you to send any written data, 

views, or arguments about this AD. 

Send your comments to an address 

listed under the ADDRESSES section. 

Include the docket number FAA–2010– 

0683; and directorate identifier 2010– 

NE–25–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 we receive 

about this AD. 

Cost of Compliance 

We estimate that this AD will affect 

about 104 engines installed on airplanes 

of U.S. registry. We also estimate that it 

will take about 16 work-hours per 

engine to perform the clutch assembly 

replacement. The average labor rate is 

$85 per work-hour. Required parts will 

cost about $1,796. Based on these 

figures, we estimate the cost of the AD 

on U.S. operators to be $328,224. 

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 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, 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: 


emcdonald on DSK5VPTVN1PROD with RULES
68638 Federal Register / Vol. 76, No. 215 / Monday, November 7, 2011 / Rules and Regulations 

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) 

2010–18–02, Amendment 39–16415 (75 

FR 52240, August 25, 2010), and adding 

the following new AD: 

2011–23–01 Thielert Aircraft Engines 

GmbH: Amendment 39–16852; Docket 

No. FAA–2010–0683; Directorate 

Identifier 2010–NE–25–AD. 

(a) Effective Date 

This AD is effective November 22, 2011. 

(b) Affected ADs 

This AD supersedes AD 2010–18–02, 

Amendment 39–16415, (75 FR 52240, August 

25, 2010). 

(c) Applicability 

This AD applies to Thielert Aircraft 

Engines GmbH (TAE): 

(1) TAE 125–01 reciprocating engines 

(commercial designation Centurion 1.7), all 

serial numbers (S/Ns), if a clutch assembly 

part number (P/N) 02–7210–11001R13 is 

installed, and 

(2) TAE 125–02–99 reciprocating engines 

(commercial designation Centurion 2.0), all 

S/Ns, if a clutch assembly P/N 05–7211– 

K006001 or P/N 05–7211–K006002 is 

installed. 

(d) Unsafe Condition 

This AD was prompted by TAE identifying 

additional clutch assemblies that could fail 

with nonconforming disc springs. These 

failures could lead to engine in-flight 

shutdown and loss of control of the airplane. 

We are issuing this AD to correct the unsafe 

condition on these products. 

(e) Actions and Compliance 

Unless already done, do the following 

actions. 

(1) After the effective date of this AD, for 

clutch assembly P/N 02–7210–11001R13, 

P/N 05–7211–K006001 and P/N 05–7211– 

K006002, with an S/N listed in TAE Service 

Bulletin (SB) No. TM TAE 125–0021, 

Revision 1, dated August 17, 2011, or SB No. 

TM TAE 125–1011 P1, Revision 2, dated 

August 31, 2011, do the following: 

(i) For engines with affected clutch 

assemblies that have accumulated 100 flight 

hours or more on the effective date of this 

AD, replace the clutch assembly before 

further flight. 

(ii) For engines with affected clutch 

assemblies that have accumulated less than 

100 flight hours on the effective date of this 

AD, replace the clutch assembly before 

accumulating 100 flight hours. 

(2) After the effective date of this AD: 

(i) Do not install an engine having a clutch 

assembly that is listed by S/N in TAE SB No. 

TM TAE 125–0021, Revision 1, dated August 

17, 2011, or SB No. TM TAE 125–1011 P1, 

Revision 2, dated August 31, 2011, and 

(ii) Do not install any clutch assembly 

listed by S/N in TAE SB No. TM TAE 125– 

0021, Revision 1, dated August 17, 2011, or 

SB No. TM TAE 125–1011 P1, Revision 2, 

dated August 31, 2011, into any engine. 

(f) 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. 

(g) Related Information 

(1) Refer to MCAI EASA AD 2011–0152– 

E, dated August 18, 2011, for related 

information. 

(2) 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, for 

more information about this AD. 

(h) Material Incorporated by Reference 

(1) You must use Thielert Aircraft Engines 

GmbH Service Bulletin No. TM TAE 125– 

0021, Revision 1, dated August 17, 2011, and 

Service Bulletin No. TM TAE 125–1011 P1, 

Revision 2, dated August 31, 2011, to identify 

the affected clutch assemblies requiring 

replacement by this AD. 

(2) The Director of the Federal Register 

approved the incorporation by reference of 

this service information under 5 U.S.C. 

552(a) and 1 CFR part 51. 

(3) For service information identified in 

this AD, contact Thielert Aircraft Engines 

GmbH, Platanenstrasse 14 D–09350, 

Lichtenstein, Germany; phone: +49–37204– 

696–0; fax: +49–37204–696–55; email: 

info@centurion-engines.com. 

(4) You may review copies at the FAA, 

New England Region, 12 New England 

Executive Park, Burlington, MA; or 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 

October 19, 2011. 

Peter A. White, 

Manager, Engine and Propeller Directorate, 

Aircraft Certification Service. 

[FR Doc. 2011–28672 Filed 11–4–11; 8:45 am] 

BILLING CODE 4910–13–P 

ENVIRONMENTAL PROTECTION 

AGENCY 

40 CFR Part 52 

[EPA–R03–OAR–2011–0773; FRL–9487–6] 

Approval and Promulgation of Air 

Quality Implementation Plans; Virginia; 

Revision to Nitrogen Oxides Budget 

Trading Program 

AGENCY: Environmental Protection 

Agency (EPA). 

ACTION: Direct final rule. 

SUMMARY: EPA is taking direct final 

action to approve a revision to the 

Virginia State Implementation Plan 

(SIP). The revision pertains to regulatory 

language in its nitrogen oxides (NOX) 

Budget Trading Program that 

inadvertently ended its NOX budget at 

the end of the 2008 ozone season. EPA 

is approving this revision in accordance 

with the requirements of the Clean Air 

Act (CAA). 

DATES: This rule is effective on January 

6, 2012 without further notice, unless 

EPA receives adverse written comment 

by December 7, 2011. If EPA receives 

such comments, it will publish a timely 

withdrawal of the direct final rule in the 

Federal Register and inform the public 

that the rule will not take effect. 

ADDRESSES: Submit your comments, 

identified by Docket ID Number EPA– 

R03–OAR–2011–0773 by one of the 

following methods: 

A. www.regulations.gov. Follow the 

on-line instructions for submitting 

comments. 

B. Email: fernandez.cristina@epa.gov. 

C. Mail: EPA–R03–OAR–2011–0773, 

Cristina Fernandez, Associate Director, 

Office of Air Program Planning, 

Mailcode 3AP30, U.S. Environmental 

Protection Agency, Region III, 1650 

Arch Street, Philadelphia, Pennsylvania 

19103. 

D. Hand Delivery: At the previouslylisted EPA Region III address. Such 

deliveries are only accepted during the 

Docket’s normal hours of operation, and 

special arrangements should be made 

for deliveries of boxed information. 

Instructions: Direct your comments to 

Docket ID No. EPA–R03–OAR–2011– 

0773. EPA’s policy is that all comments 

received will be included in the public 

docket without change, and may be 

made available online at 

www.regulations.gov, including any 

personal information provided, unless 

the comment includes information 

claimed to be Confidential Business 

Information (CBI) or other information 

whose disclosure is restricted by statute. 

Do not submit information that you 


emcdonald on DSK5VPTVN1PROD with RULES