Federal Register / Vol. 75, No. 96 / Wednesday, May 19, 2010 / Proposed Rules 27973 

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 have 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 that the proposed 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. Would 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. You may get a copy 

of this summary at the address listed 

under ADDRESSES. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Safety. 

The Proposed Amendment 

Under the authority delegated to me 

by the Administrator, the Federal 

Aviation Administration 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 

directive: 

PRATT & WHITNEY: Docket No. FAA–2010– 

0514; Directorate Identifier 2010–NE– 

02–AD. 

Comments Due Date 

(a) The Federal Aviation Administration 

(FAA) must receive comments on this 

airworthiness directive (AD) action by July 

19, 2010. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to Pratt & Whitney 

(PW) JT8D–9, –9A, –11, –15, –17, and –17R 

turbofan engines. These engines are installed 

on, but not limited to, Boeing 727 series, 

Boeing 737–200 series and McDonnell 

Douglas DC–9 airplanes. 

Unsafe Condition 

(d) This AD results from reports of failed 

fan blades. We are issuing this AD to prevent 

high-cycle fatigue cracking at the blade root, 

which could result in uncontained failures of 

first stage fan blades and damage to the 

airplane. 

Compliance 

(e) You are responsible for having the 

actions required by this AD performed within 

the compliance times specified unless the 

actions have already been done. 

Initial Overhaul 

(f) For engines where the cycles-in-service 

(CIS) since last overhaul are known, overhaul 

the total set of stage 1 fan blades at the first 

shop visit after 4,000 CIS since the last total 

stage 1 fan blade overhaul, or the next shop 

visit after the effective date of this AD, 

whichever occurs later. Guidance on 

performing a fan blade overhaul can be found 

in Pratt & Whitney JT8D Maintenance 

Advisory Notice, MAN–JT8D–2–06 and the 

Engine Manual Chapter/Section 72–33–21, 

Inspection 00. 

(g) For engines where the CIS since last 

overhaul are unknown, overhaul the total set 

of stage 1 fan blades at the next shop visit 

after the effective date of this AD. Guidance 

on performing a fan blade overhaul can be 

found in Pratt & Whitney JT8D Maintenance 

Advisory Notice, MAN–JT8D–2–06 and the 

Engine Manual Chapter/Section 72–33–21, 

Inspection 00. 

Repetitive Overhaul 

(h) Thereafter, overhaul the total set of 

stage 1 fan blades at the first shop visit after 

4,000 CIS since the last total stage 1 fan blade 

overhaul. Guidance on performing a fan 

blade overhaul can be found in Pratt & 

Whitney JT8D Maintenance Advisory Notice, 

MAN–JT8D–2–06 and the Engine Manual 

Chapter/Section 72–33–21, Inspection 00. 

Definitions 

(i) For the purpose of this AD, a shop visit 

is the induction of an engine into the shop 

for maintenance involving the separation of 

pairs of major mating engine flanges, except 

that the separation of engine flanges solely 

for the purposes of transporting the engine 

without subsequent engine maintenance does 

not constitute an engine shop visit. 

Alternative Methods of Compliance 

(j) The Manager, Engine Certification 

Office, has the authority to approve 

alternative methods of compliance for this 

AD if requested using the procedures found 

in 14 CFR 39.19. 

Related Information 

(k) Contact James Gray, Aerospace 

Engineer, Engine Certification Office, FAA, 

Engine & Propeller Directorate, 12 New 

England Executive Park, Burlington, MA 

01803; e-mail: james.gray@faa.gov; telephone 

(781) 238–7742; fax (781) 238–7199, for more 

information about this AD. 

(l) Pratt & Whitney JT8D Maintenance 

Advisory Notice MAN–JT8D–2–06, dated 

November 20, 2006, pertains to the subject of 

this AD. Contact Pratt & Whitney, 400 Main 

St., East Hartford, CT 06108; telephone (860) 

565–7700; fax (860) 565–1605, for a copy of 

this service information. 

Issued in Burlington, Massachusetts, on 

May 13, 2010. 

Peter A. White, 

Assistant Manager, Engine and Propeller 

Directorate, Aircraft Certification Service. 

[FR Doc. 2010–11999 Filed 5–18–10; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2010–0521; Directorate 

Identifier 2009–NE–21–AD] 

RIN 2120–AA64 

Airworthiness Directives; Rolls-Royce 

plc RB211–524C2 Series 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 the 

products listed above. This proposed 

AD results from mandatory continuing 

airworthiness information (MCAI) 

issued by an aviation authority of 

another country to identify and correct 

an unsafe condition on an aviation 

product. The MCAI describes the unsafe 

condition as: A number of LPT casings 

have been found cracked during engine 

shop visit. Cracking of the LPT casing 

reduces the capability of the casing to 

contain debris in the event of an LPT 

stage 1 blade failure. Therefore, blade 

failure in an engine featuring a cracked 

LPT casing may result in release of 

uncontained high energy debris. For the 

reason described above, this AD 

requires repetitive inspections and 

corrective actions, depending on 


erowe on DSK5CLS3C1PROD with PROPOSALS-1
27974 Federal Register / Vol. 75, No. 96 / Wednesday, May 19, 2010 / Proposed Rules 

findings. We are proposing this AD to 

detect cracks in the LPT casings, which 

could result in the release of 

uncontained high-energy debris in the 

event of a stage 1 blade failure. 

Uncontained high-energy debris could 

result in damage to the airplane. 

DATES: We must receive comments on 

this proposed AD by July 6, 2010. 

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. 

Contact Rolls-Royce plc, P.O. Box 31, 

Derby, DE24 8BJ, United Kingdom; 

telephone 011 44 1332 242424; fax 011 

44 1332 249936 for the service 

information identified in this proposed 

AD. 

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 

regulatory evaluation, any comments 

received, and other information. The 

street address for the Docket Operations 

office (telephone (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: Tara 

Chaidez, Aerospace Engineer, Engine 

Certification Office, FAA, Engine and 

Propeller Directorate, 12 New England 

Executive Park, Burlington, MA 01803; 

e-mail: tara.chaidez@faa.gov; telephone 

(781) 238–7773; fax (781) 238–7199. 

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–2010–0521; Directorate Identifier 

2009–NE–21–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 

Airworthiness Directive 2009–0083, 

dated April 16, 2009 (referred to after 

this as ‘‘the MCAI’’), to correct an unsafe 

condition for the specified products. 

The MCAI states: 

A number of LPT casings have been found 

cracked during engine shop visit. Cracking of 

the LPT casing reduces the capability of the 

casing to contain debris in the event of an 

LPT stage 1 blade failure. Therefore, blade 

failure in an engine featuring a cracked LPT 

casing may result in release of uncontained 

high energy debris. 

You may obtain further information 

by examining the MCAI in the AD 

docket. 

Relevant Service Information 

Rolls-Royce plc has issued Alert 

Service Bulletin RB.211–72–AG076, 

dated November 13, 2008. The actions 

described in this service information are 

intended to correct the unsafe condition 

identified in the MCAI. 

FAA’s Determination and Requirements 

of This Proposed 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 United 

Kingdom, they have 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. 

Costs of Compliance 

Based on the service information, we 

estimate that this proposed AD would 

affect about 10 products of U.S. registry. 

We also estimate that it would take 

about 10 work-hours per product to 

comply with this proposed AD. The 

average labor rate is $85 per work-hour. 

Required parts would cost about 

$25,000 per product. Based on these 

figures, we estimate the cost of the 

proposed AD on U.S. operators to be 

$258,500. 

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 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. 


erowe on DSK5CLS3C1PROD with PROPOSALS-1
Federal Register / Vol. 75, No. 96 / Wednesday, May 19, 2010 / Proposed Rules 27975 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, 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 AD: 

Rolls-Royce plc (Formerly Rolls-Royce 

Limited): Docket No. FAA–2010–0521; 

Directorate Identifier 2009–NE–21–AD. 

Comments Due Date 

(a) We must receive comments by July 6, 

2010. 

Affected Airworthiness Directives (ADs) 

(b) None. 

Applicability 

(c) This AD applies to Rolls-Royce plc (RR) 

model RB211–524C2–19 and RB211–524C2– 

B–19 turbofan engines. These engines are 

installed on, but not limited to, Boeing 747 

series airplanes. 

Reason 

(d) A number of low-pressure turbine (LPT) 

casings have been found cracked during 

engine shop visit. Cracking of the LPT casing 

reduces the capability of the casing to 

contain debris in the event of an LPT stage 

1 blade failure. Blade failure in an engine 

with a cracked LPT casing may result in 

release of uncontained high-energy debris. 

We are issuing this AD to detect cracks in 

the LPT casings, which could result in the 

release of uncontained high-energy debris in 

the event of a stage 1 blade failure. 

Uncontained high energy debris could result 

in damage to the airplane. 

Actions and Compliance 

(e) Unless already done, do the following 

actions: 

Initial Inspection Requirements 

(1) Perform a fluorescent penetrant 

inspection (FPI) before the life of the LPT 

casing has reached 4,500 cycles-since-new 

(CSN) or within 4,500 cycles-since-last 

inspection (CSLI) or within 500 cycles after 

the effective date of this AD, whichever 

occurs later. You can find guidance on 

performing the FPI in RR Alert Service 

Bulletin (ASB) RB.211–72–AG076, dated 

November 13, 2008. 

Repetitive Inspection Requirements 

(2) Thereafter, perform an FPI at intervals 

not exceeding 4,500 CSLI. You can find 

guidance on performing the FPI in RollsRoyce plc ASB RB.211–72–AG076, dated 

November 13, 2008. 

Remove Parts With Cracks 

(3) Remove cracked LPT casings, found 

using paragraphs (e)(1) or (e)(2) of this AD, 

from service before further flight. 

Other FAA AD Provisions 

(f) Alternative Methods of Compliance 

(AMOCs): The Manager, Engine Certification 

Office, FAA, has the authority to approve 

AMOCs for this AD, if requested using the 

procedures found in 14 CFR 39.19. 

Related Information 

(g) Refer to MCAI EASA Airworthiness 

Directive 2009–0083, dated April 16, 2009, 

and Rolls-Royce plc Alert Service Bulletin 

No. RB.211–72–AG076, dated November 13, 

2008, for related information. Contact RollsRoyce plc, P.O. Box 31, Derby, DE24 8BJ, 

United Kingdom; telephone 011 44 1332 

242424; fax 011 44 1332 249936, for a copy 

of this service information. 

(h) Contact Tara Chaidez, Aerospace 

Engineer, Engine Certification Office, FAA, 

Engine and Propeller Directorate, 12 New 

England Executive Park, Burlington, MA 

01803; e-mail: tara.chaidez@faa.gov; 

telephone (781) 238–7773; fax (781) 238– 

7199, for more information about this AD. 

Issued in Burlington, Massachusetts, on 

May 12, 2010. 

Peter A. White, 

Assistant Manager, Engine and Propeller 

Directorate, Aircraft Certification Service. 

[FR Doc. 2010–11997 Filed 5–18–10; 8:45 am] 

BILLING CODE 4910–13–P 

ENVIRONMENTAL PROTECTION 

AGENCY 

40 CFR Part 52 

[EPA–R09–OAR–2008–0740; FRL–9152–9] 

Revisions to the California State 

Implementation Plan; Imperial County 

Air Pollution Control District 

AGENCY: Environmental Protection 

Agency (EPA). 

ACTION: Proposed rule. 

SUMMARY: EPA is proposing to approve 

revisions to the Imperial County Air 

Pollution Control District (ICAPCD) 

portion of the California State 

Implementation Plan (SIP). These 

revisions concern particulate matter 

(PM) emissions from beef feedlots. We 

are approving a local rule that regulates 

these emission sources under the Clean 

Air Act as amended in 1990 (CAA or the 

Act). We are taking comments on this 

proposal and plan to follow with a final 

action. 

DATES: Any comments must arrive by 

June 18, 2010. 

ADDRESSES: Submit comments, 

identified by docket number EPA–R09– 

OAR–2008–0740, by one of the 

following methods: 

1. Federal eRulemaking Portal: 

http://www.regulations.gov. Follow the 

online instructions. 

2. E-mail: steckel.andrew@epa.gov. 

3. Mail or deliver: Andrew Steckel 

(Air-4), U.S. Environmental Protection 

Agency Region IX, 75 Hawthorne Street, 

San Francisco, CA 94105–3901. 

Instructions: All comments will be 

included in the public docket without 

change and may be made available 

online at http://www.regulations.gov, 

including any personal information 

provided, unless the comment includes 

Confidential Business Information (CBI) 

or other information whose disclosure is 

restricted by statute. Information that 

you consider CBI or otherwise protected 

should be clearly identified as such and 

should not be submitted through 

http://www.regulations.gov or e-mail. 

http://www.regulations.gov is an 

‘‘anonymous access’’ system, and EPA 

will not know your identity or contact 

information unless you provide it in the 

body of your comment. If you send email directly to EPA, your e-mail 

address will be automatically captured 

and included as part of the public 

comment. If EPA cannot read your 

comment due to technical difficulties 

and cannot contact you for clarification, 

EPA may not be able to consider your 

comment. 

Docket: The index to the docket for 

this action is available electronically at 

http://www.regulations.gov and in hard 

copy at EPA Region IX, 75 Hawthorne 

Street, San Francisco, California. While 

all documents in the docket are listed in 

the index, some information may be 

publicly available only at the hard copy 

location (e.g., copyrighted material), and 

some may not be publicly available in 

either location (e.g., CBI). To inspect the 

hard copy materials, please schedule an 

appointment during normal business 

hours with the contact listed in the FOR

FURTHER INFORMATION CONTACT section. 

FOR FURTHER INFORMATION CONTACT: 

Andrew Steckel, EPA Region IX, (415) 

947–4115, steckel.andrew@epa.gov. 

SUPPLEMENTARY INFORMATION: 

Throughout this document, ‘‘we’’, ‘‘us’’ 

and ‘‘our’’ refer to EPA. 

Table of Contents 

I. The State’s Submittal 

A. What rule did the State submit? 

B. Are there other versions of this rule? 

C. What is the purpose of the submitted 

rule revisions? 

II. EPA’s Evaluation and Action 

A. How is EPA evaluating the rule? 

B. Does the rule meet the evaluation 

criteria? 


erowe on DSK5CLS3C1PROD with PROPOSALS-1