Federal Register / Vol. 78, No. 187 / Thursday, September 26, 2013 / Proposed Rules 59291 

(1) * * * 

(ii) Were scheduled and ready for 

delivery in a previous week, but were 

not picked up by the shipper and 

remain available for immediate loading 

and another shipping date has not been 

established, or such bales are not subject 

to a restocking fee as provided in the 

warehouse operator’s public tariff. Bales 

that have been available for delivery but 

not picked up may be counted as BMAS 

for no longer than the first two weeks 

that such bales have been made 

available for delivery but not yet picked 

up by the shipper. 

* * * * * 

Signed on August 12, 2013. 

Juan M. Garcia, 

Administrator, Farm Service Agency, and 

Executive Vice President, Commodity Credit 

Corporation. 

[FR Doc. 2013–23506 Filed 9–25–13; 8:45 am] 

BILLING CODE 3410–05–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2013–0342; Directorate 

Identifier 2013–NE–14–AD] 

RIN 2120–AA64 

Airworthiness Directives; Rolls-Royce 

Deutschland Ltd & Co. KG Turbofan 

Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to adopt a new 

airworthiness directive (AD) for RollsRoyce Deutschland Ltd & Co. KG (RRD) 

Tay 620–15, 650–15, and 651–54 

turbofan engines. This proposed AD was 

prompted by the discovery that the lowpressure compressor (LPC) fan blades 

leading edges erode in service and 

create an unacceptable blade flutter 

margin. This proposed AD would 

require replacement of LPC fan blades. 

We are proposing this AD to prevent 

LPC fan blade failure, damage to the 

engine, and damage to the airplane. 

DATES: We must receive comments on 

this proposed AD by November 25, 

2013. 

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: Docket Management Facility, 

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 proposed AD, contact Rolls-Royce 

Deutschland Ltd & Co KG, Eschenweg 

11, Dahlewitz, 15827 BlankenfeldeMahlow, Germany; phone: 49 0 33– 

7086–1200 (direct 1016); fax: 49 0 33– 

7086–1212. 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 Operations office between 9 a.m. 

and 5 p.m., Monday through Friday, 

except Federal holidays. The AD docket 

contains this proposed 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: 

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: 

Comments Invited 

We invite you to send any written 

relevant data, views, or arguments about 

this proposed AD. Send your comments 

to an address listed under the 

ADDRESSES section. Include ‘‘Docket No. 

FAA–2013–0342; Directorate Identifier 

2013–NE–14–AD’’ at the beginning of 

your comments. We specifically invite 

comments on the overall regulatory, 

economic, environmental, and energy 

aspects of this proposed AD. We will 

consider all comments received by the 

closing date and may amend this 

proposed AD based on 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 proposed 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). 

Discussion 

The European Aviation Safety Agency 

(EASA), which is the Technical Agent 

for the Member States of the European 

Community, has issued EASA AD 2013– 

0143, dated July 12, 2013 (referred to 

hereinafter as ‘‘the MCAI’’), to correct an 

unsafe condition for the specified 

products. The MCAI states: 

Service history of Tay series engines 

discovered that low pressure compressor 

(LPC) fan blade leading edge could be subject 

of excessive deterioration. The LPC fan blade 

leading edge profile influences the LPC 

aerodynamic characteristics and stability. 

This condition, if not corrected, could reduce 

fan flutter margin and, in some cases, could 

lead to fan blade failure, possibly resulting in 

uncontained release of high energy debris 

with consequent damage to, and/or reduced 

control of, the aeroplane. 

You may obtain further information by 

examining the MCAI in the AD docket. 

Service-history-relevant failure cases 

and a standard leading edge erosion rate 

profile analysis support the requirement 

for replacement of fan blades at the 

cycle intervals listed in the proposed 

AD, to maintain an acceptable fan flutter 

margin. We are proposing this AD to 

prevent LPC fan blade failure, damage to 

the engine, and damage to the airplane. 

FAA’s Determination and Requirements 

of This Proposed AD 

This product has been approved by 

the aviation authority of Germany, 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 proposing 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 

proposed AD would require 

replacement of LPC fan blades at 

specific intervals. 

Costs of Compliance 

We estimate that this proposed AD 

affects 52 engines installed on airplanes 


emcdonald on DSK67QTVN1PROD with PROPOSALS
59292 Federal Register / Vol. 78, No. 187 / Thursday, September 26, 2013 / Proposed Rules 

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

would take about six hours per engine 

to replace the LPC fan blades. The 

average labor rate is $85 per hour. 

Required parts cost about $11,000 per 

engine. Based on these figures, we 

estimate the cost of the proposed AD on 

U.S. operators to be $598,520. 

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 proposed AD 

would not have federalism implications 

under Executive Order 13132. This 

proposed AD would 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 proposed regulation: 

(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 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 proposed 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. 

The Proposed Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA proposes to amend 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 

directives (ADs): 

Rolls-Royce Deutschland Ltd & Co KG 

(Formerly Rolls-Royce Deutschland 

GmbH, formerly Rolls-Royce plc): 

Docket No. FAA–2013–0342; Directorate 

Identifier 2013–NE–14–AD. 

(a) Comments Due Date 

We must receive comments by November 

25, 2013. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Rolls-Royce 

Deutschland Ltd & Co. KG (RRD) Tay 620– 

15, 650–15, and 651–54 turbofan engines. 

(d) Reason 

This AD was prompted by the discovery 

that the low-pressure compressor (LPC) fan 

blades leading edges erode in service and 

create an unacceptable blade flutter margin. 

We are issuing this AD to prevent LPC fan 

blade failure, damage to the engine, and 

damage to the airplane. 

(e) Actions and Compliance 

Unless already done, do the following 

actions: 

(1) For Tay 620–15 engines, replace the 

complete set of LPC fan blades with a set 

eligible for installation as follows: 

(i) If on the effective date of this AD, the 

LPC fan blades: 

(A) Have less than 10,000 flight cycles 

since new (FCSN) or flight cycles since last 

repair (FCSLR), replace the blades before 

accumulating 12,000 FCSN or FCSLR. 

(B) Have 10,000 or more FCSN or FCSLR, 

replace the blades within 2,000 flight cycles 

(FC). 

(ii) Thereafter, replace the LPC fan blades 

within 12,000 FCSN or FCSLR. 

(2) For Tay 650–15 and Tay 651–54 

engines, replace the complete set of LPC fan 

blades with a set eligible for installation as 

follows: 

(i) If on the effective date of this AD, the 

LPC fan blades 

(A) Have less than 8,000 FCSN or FCSLR, 

replace the blades before accumulating 

10,000 FCSN or FCSLR. 

(B) Have 8,000 or more FCSN or FCSLR, 

replace the fan blades within 2,000 FC. 

(ii) Thereafter, replace the LPC fan blades 

within 10,000 FCSN or FCSLR. 

(f) Definitions 

(1) For the purpose of this AD, a repair is 

one that was performed in accordance with 

RRD Alert Non-Modification Service Bulletin 

(NMSB) No. Tay–72–A1782, Revision 2, 

dated May 30, 2013, or earlier versions of this 

Alert NMSB. 

(2) LPC fan blades eligible for installation 

are: 

(i) For Tay 620–15 engines, LPC fan blades 

with less than 12,000 FCSN or FCSLR; and 

(ii) For Tay 650–15 and Tay 651–54 

engines, LPC fan blades with less than 10,000 

FCSN or FCSLR. 

(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 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 2013–0143, dated July 12, 2013, 

for more information. You may examine the 

AD on the Internet at http://

www.regulations.gov by searching for and 

locating it in Docket No. FAA–2013–0342. 

(3) RRD Alert NMSB No. Tay–72–A1782, 

Revision 2, dated May 30, 2013, pertains to 

the subject of this AD and can be obtained 

from RRD, using the contact information in 

paragraph (h)(4) of this AD. 

(4) For service information identified in 

this AD, contact Rolls-Royce Deutschland Ltd 

& Co KG, Eschenweg 11, Dahlewitz, 15827 

Blankenfelde-Mahlow, Germany; phone: 49 0 

33–7086–1200 (direct 1016); fax: 49 0 33– 

7086–1212. 

(5) 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. 

Issued in Burlington, Massachusetts, on 

September 16, 2013. 

Carlos A. Pestana, 

Acting Directorate Assistant Manager, Engine 

& Propeller Directorate, Aircraft Certification 

Service. 

[FR Doc. 2013–23454 Filed 9–25–13; 8:45 am] 

BILLING CODE 4910–13–P 


emcdonald on DSK67QTVN1PROD with PROPOSALS