Federal Register / Vol. 78, No. 1 / Wednesday, January 2, 2013 / Rules and Regulations 5 

recommended by the Committee at a 

public meeting during which interested 

parties had an opportunity to provide 

input; and (4) this rule provides a 60- 

day comment period and any comments 

received will be considered prior to 

finalization of this rule. 

List of Subjects in 7 CFR Part 948 

Marketing agreements, Potatoes, 

Reporting and recordkeeping 

requirements. 

For the reasons set forth in the 

preamble, 7 CFR part 948 is amended as 

follows: 

PART 948—IRISH POTATOES GROWN 

IN COLORADO 

■ 1. The authority citation for 7 CFR 

part 948 continues to read as follows: 

Authority: 7 U.S.C. 601–674. 

■ 2. In § 948.386, paragraphs (a)(3) and 

(4) are revised to read as follows: 

§ 948.386 Handling regulation. 

* * * * * 

(a) * * * 

(3) 11⁄2-inch minimum to 21⁄4-inch 

maximum diameter (Size B). U.S. 

Commercial grade or better. 

(4) 1-inch minimum diameter to 13⁄4- 

inch maximum diameter. U.S. 

Commercial grade or better. 

* * * * * 

Dated: December 26, 2012. 

David R. Shipman, 

Administrator, Agricultural Marketing 

Service. 

[FR Doc. 2012–31513 Filed 12–31–12; 8:45 am] 

BILLING CODE 3410–02–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2012–0482; Directorate 

Identifier 2012–NE–14–AD; Amendment 39– 

17290; AD 2012–25–09] 

RIN 2120–AA64 

Airworthiness Directives; Rolls-Royce 

plc Turbofan Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for all 

Rolls-Royce plc (RR) RB211–524G2–19; 

RB211–524G2–T–19; RB211–524G3–19; 

RB211–524G3–T–19; RB211–524H2–19; 

RB211–524H2–T–19; RB211–524H–36; 

RB211–524H–T–36; RB211–535E4–37; 

RB211–535E4–B–37; RB211–535E4–B– 

75; and RB211–535E4–C–37 turbofan 

engines. This AD was prompted by an 

investigation by RR concluding that 

certain intermediate-pressure (IP) 

turbine discs produced before 1997 by 

a certain supplier may contain steel 

inclusions. This AD requires removal of 

the affected IP turbine discs to inspect 

them for steel inclusions, and removal 

of the affected discs from service if they 

fail the inspection. This AD also 

requires removal from service of some 

IP turbine discs at reduced life limits. 

We are issuing this AD to prevent 

uncontained IP turbine disc failure, 

engine failure, and damage to the 

airplane. 

DATES: This AD becomes effective 

February 6, 2013. The Director of the 

Federal Register approved the 

incorporation by reference of certain 

publications listed in this AD as of 

February 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 FURTHER INFORMATION CONTACT: 

Alan Strom, Aerospace Engineer, Engine 

Certification Office, FAA, Engine & 

Propeller Directorate, 12 New England 

Executive Park, Burlington, MA 01803; 

phone: 781–238–7143; fax: 781–238– 

7199; email: alan.strom@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to include an AD that would 

apply to the specified products. That 

NPRM was published in the Federal 

Register on July 11, 2012 (77 FR 40820). 

That NPRM proposed to correct an 

unsafe condition for the specified 

products. The MCAI states: 

The inspection of several intermediate 

pressure (IP) turbine discs at past engine 

overhauls identified the presence of steel 

inclusions in these parts. Further 

investigation concluded that all affected parts 

were manufactured from billets produced 

before 1997 at a certain supplier who also 

melted steel in the same furnaces. Initial 

engineering evaluation concluded that the 

lives of the parts would not be affected by the 

presence of the said steel inclusions. This 

evaluation has been recently repeated, 

utilising improved structural analysis, and it 

is now concluded that the currently 

published lives of the components cannot be 

supported for some discs with a steel 

inclusion. 

We are issuing this AD to prevent 

uncontained IP turbine disc failure, 

engine failure, and damage to the 

airplane. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. We 

considered the comments received. The 

following presents the comments 

received on the proposal and the FAA’s 

response to each comment. 

Request To Provide Alternative to 

Inspection 

One commenter, American Airlines, 

requested that we allow replacement of 

the removed IP turbine disc with a 

serviceable part as an alternative to the 

inspection mandated by paragraph (f) in 

the proposed AD. American noted that 

including this alternative would allow 

operators to avoid the added expense of 

an inspection of discs that are being 

removed from service. 

We agree. We revised paragraph (f) of 

the Compliance section of the AD to 

allow replacement of an affected disc 

with a part eligible for installation. 

Request To Redefine ‘‘Shop Visit’’ 

One commenter, FedEx Express, 

requested that we redefine ‘‘shop visit’’ 

as any IP turbine disc exposed at shop 

visit, engine Level 3 (Refurbishment), 

Level 4 (Overhaul), or 05 Module Level 

2 (Check and Repair). FedEx Express 

indicated that this change would align 

the AD with the current wording in RR 

Alert Service Bulletin (ASB) RB.211– 

72–AG493, dated October 12, 2012. 

We do not agree. The terms ‘Level 3’ 

and ‘Level 4’ are not specific enough to 

be enforceable. Our definition of shop 

visit in the AD is consistent with the 

definition in MCAI AD No. 2012–0060, 

dated April 18, 2012. We did not change 

the AD based on this comment. 

Request To Remove Reference to 

Demagnetization 

Commenter Rolls-Royce requested 

that we remove the reference to 

demagnetization from Compliance 

paragraph (f). The disc does not need to 

be demagnetized as it will be 

magnetized as part of the 

Superconductive Quantitative Inductive 

Device (SQUID) inspection process 

required by paragraph (f). 

We agree. We changed the references 

in Compliance paragraphs (f)(1) and 

(f)(2) from ‘‘clean, demagnetize, and 

perform * * *’’ to ‘‘clean and perform 

* * *’’. The first sentence in paragraph 

(f)(1) now reads: ‘‘If below the 

inspection threshold, clean and perform 

a Superconductive Quantitative 

Inductive Device (SQUID) inspection of 

the disc at the next shop visit or before 

the disc reaches the inspection 


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6 Federal Register / Vol. 78, No. 1 / Wednesday, January 2, 2013 / Rules and Regulations 

threshold, whichever is later.’’ The first 

sentence in paragraph (f)(2) now reads: 

‘‘If above the inspection threshold, clean 

and perform a SQUID inspection of the 

disc if in the shop or, at the next shop 

visit, whichever occurs first.’’ 

Request To Allow Full Life Limit for 

Parts That Pass Inspection 

Commenter Rolls-Royce asked that we 

clarify in the AD that the new, lower life 

limits in Appendix 2 of ASB RB.211– 

72–AG493 do not apply to a part that 

has passed the SQUID inspection. RollsRoyce noted that the maximum life as 

defined in Appendix 2 only limits the 

disc until it has had the SQUID 

inspection and been confirmed as 

inclusion-free. If the disc has 

successfully passed the inspection, then 

it can be returned to service for the 

remainder of its life as defined by the 

Time Limits Manual. 

We agree. We changed the AD by 

adding the phrase ‘‘unless it has passed 

the inspection required by paragraph (f) 

of the AD’’ to paragraph (g)(3). This 

paragraph now reads: ‘‘Do not return to 

service any disc that exceeds its 

maximum life (in cycles), as found in 

Appendix 2 of RR ASB No. RB.211–72– 

AG493, Revision 2, dated October 12, 

2012, unless it has passed the 

inspection required by paragraph (f) of 

the AD.’’ 

Conclusion 

We reviewed the available data, 

including the comments received, and 

determined that air safety and the 

public interest require adopting the AD 

with the changes described previously. 

We determined that these changes will 

not increase the economic burden on 

any operator or increase the scope of the 

AD. 

Costs of Compliance 

We estimate that this AD will affect 

about 200 engines installed on airplanes 

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

will take about 12.5 work-hours per 

engine to inspect an IP turbine disc. The 

average labor rate is $85 per work-hour. 

In addition, 77 discs must be removed 

earlier than the existing Airworthiness 

Limitation Section requires. A prorated 

replacement IP turbine disc would cost 

about $9,925 per engine. We also 

estimate the cost of replacing a disc if 

it fails the inspection is $225,000. Based 

on these figures, we estimate the cost of 

the AD on U.S. operators to be $976,725. 

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); and 

3. 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. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http:// 

www.regulations.gov; 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 regulatory 

evaluation, any comments received, and 

other information. The street address for 

the Docket Operations office (phone: 

(800) 647–5527) is provided in the 

ADDRESSES section. Comments will be 

available in the AD docket shortly after 

receipt. 

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 AD: 

2012–25–09 Rolls-Royce plc: Amendment 

39–17290; Docket No. FAA–2012–0482; 

Directorate Identifier 2012–NE–14–AD. 

(a) Effective Date 

This airworthiness directive (AD) 

becomes effective February 6, 2013. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to all Rolls-Royce plc 

(RR) RB211–524G2–19; RB211–524G2– 

T–19; RB211–524G3–19; RB211–524G3– 

T–19; RB211–524H2–19; RB211– 

524H2–T–19; RB211–524H–36; RB211– 

524H–T–36; RB211–535E4–37; RB211– 

535E4–B–37; RB211–535E4–B–75; and 

RB211–535E4–C–37 turbofan engines 

with intermediate-pressure (IP) discs 

listed in Appendix 1 and Appendix 2 of 

RR Alert Service Bulletin (ASB) No. 

RB.211–72–AG493, Revision 2, dated 

October 12, 2012. 

(d) Reason 

This AD was prompted by an 

investigation by RR concluding that 

certain IP turbine discs produced before 

1997 by a certain supplier may contain 

steel inclusions. We are issuing this AD 

to prevent uncontained IP turbine disc 

failure, engine failure, and damage to 

the airplane. 

(e) Actions and Compliance 

Unless already done, do the following 

actions. 

(f) Disc Inspection 

After the effective date of this AD, use 

Appendix 1 and Appendix 2 of RR ASB 

No. RB.211–72–AG493, Revision 2, 

dated October 12, 2012, to determine if 

the IP turbine disc is below or above the 

inspection threshold. 

(1) If below the inspection threshold, 

clean and perform a Superconductive 

Quantitative Inductive Device (SQUID) 

inspection of the disc at the next shop 

visit or before the disc reaches the 

inspection threshold, whichever is later. 


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Federal Register / Vol. 78, No. 1 / Wednesday, January 2, 2013 / Rules and Regulations 7 

Use Appendix 4 of RR ASB No. RB.211– 

72–AG493, Revision 2, dated October 

12, 2012, to perform the SQUID 

inspection. 

(2) If above the inspection threshold, 

clean and perform a SQUID inspection 

of the disc if in the shop or, at the next 

shop visit, whichever occurs first. Use 

Appendix 4 of RR ASB No. RB.211–72– 

AG493, Revision 2, dated October 12, 

2012, to perform the SQUID inspection. 

(3) Do not return to service any disc 

that fails the inspection required by this 

AD. 

(4) Instead of performing the 

inspection required by paragraph (f), 

you may replace an affected disc with 

a part eligible for installation. See 

Appendix 1 and Appendix 2 of RR ASB 

No. RB.211–72–AG493, Revision 2, 

dated October 12, 2012, to determine if 

you have an affected disc. 

(g) Disc Life Intervals 

(1) After the effective date of this AD, 

use Appendix 2 of RR ASB No. RB.211– 

72–AG493, Revision 2, dated October 

12, 2012, to determine the maximum 

life (in cycles) of affected IP turbine 

disc(s). 

(2) Remove from service any disc at 

the next shop visit or before it exceeds 

its maximum life (in cycles), whichever 

is later, as found in Appendix 2 of RR 

ASB No. RB.211–72–AG493, Revision 2, 

dated October 12, 2012. 

(3) Do not return to service any disc 

that exceeds its maximum life (in 

cycles) as found in Appendix 2 of RR 

ASB No. RB.211–72–AG493, Revision 2, 

dated October 12, 2012, unless it has 

passed the inspection required by 

paragraph (f) of the AD. 

(h) Definition of Shop Visit 

For purposes of this AD, a shop visit 

is defined as induction into the shop 

where the IP and low pressure (LP) 

turbine module is removed from the 

engine, and any casing is removed from 

the IP and LP turbine module. 

(i) Credit for Previous Actions 

If you performed the actions required 

by paragraph (f) using RR ASB No. 

RB.211–72–AG493, Revision 1, dated 

November 11, 2011, you met the 

requirements of this AD. 

(j) Alternative Methods of Compliance 

(AMOCs) 

The Manager, Engine Certification 

Office, may approve AMOCs for this 

AD. Use the procedures found in 14 

CFR 39.19 to make your request. 

(k) Related Information 

(1) For more information about this 

AD, contact Alan Strom, Aerospace 

Engineer, Engine Certification Office, 

FAA, Engine & Propeller Directorate, 12 

New England Executive Park, 

Burlington, MA 01803; phone: 781– 

238–7143; fax: 781–238–7199; email: 

alan.strom@faa.gov. 

(2) European Aviation Safety Agency 

AD 2012–0060, dated April 18, 2012 

pertains to the subject of this AD. 

(l) 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 (RR) plc Alert Service 

Bulletin No. RB.211–72–AG493, 

Revision 2, dated October 12, 2012. 

(ii) Reserved. 

(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 from http:// 

www.rolls-royce.com/contact/ 

civil_team.jsp, or download the 

publication from https:// 

www.aeromanager.com. 

(4) You may view this service 

information at FAA, 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/ibr-locations.html. 

Issued in Burlington, Massachusetts, on 

December 7, 2012. 

Colleen M. D’Alessandro, 

Assistant Manager, Engine & Propeller 

Directorate, Aircraft Certification Service. 

[FR Doc. 2012–30383 Filed 12–31–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2012–0939; Directorate 

Identifier 2011–NM–200–AD; Amendment 

39–17298; AD 2012–26–03] 

RIN 2120–AA64 

Airworthiness Directives; Airbus 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for certain 

Airbus Model A330–202, –203, –223, 

–243, –302, –323, –342, and –343 

airplanes; and Model A340–313 

airplanes. This AD was prompted by 

reports that a specific batch of cargo 

doors might have deviations in quality 

related to door structure, such as 

irregular bore holes, improper 

application of sealant and paint, or 

uncleanliness. This AD requires 

inspecting to identify the part and serial 

numbers of the forward and aft cargo 

doors, and replacing the affected cargo 

doors. We are issuing this AD to prevent 

the degraded structural capability of the 

cargo door, a primary structure, from 

leading to failure of the door, which 

could lead to a breach through the door 

or the door detaching from the airplane, 

resulting in potential rapid 

decompression. 

DATES: This AD becomes effective 

February 6, 2013. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of February 6, 2013. 

ADDRESSES: You may examine the AD 

docket on the Internet at http:// 

www.regulations.gov or in person at the 

U.S. Department of Transportation, 

Docket Operations, M–30, West 

Building Ground Floor, Room W12–140, 

1200 New Jersey Avenue SE., 

Washington, DC. 

FOR FURTHER INFORMATION CONTACT: 

Vladimir Ulyanov, Aerospace Engineer, 

International Branch, ANM–116, 

Transport Airplane Directorate, FAA, 

1601 Lind Avenue SW., Renton, 

Washington 98057–3356; telephone 

(425) 227–1138; fax (425) 227–1149. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to include an AD that would 


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