Federal Register / Vol. 75, No. 134 / Wednesday, July 14, 2010 / Proposed Rules 40757 

At this time, the NRC is announcing 

the availability for public comment of 

‘‘Implementation Guidance for 10 CFR 

part 37 Physical Protection of Byproduct 

Material, Category 1 and Category 2 

Quantities of Radioactive Material.’’ The 

document provides guidance on 

implementing the provisions of 

proposed 10 CFR part 37, ‘‘Physical 

Protection of Byproduct Material.’’ The 

NRC is planning to hold two public 

meetings to obtain public input on the 

draft implementation guidance in 

September 2010. Information on these 

meetings will be posted on http:// 

www.regulations.gov under Docket ID 

NRC–2010–0194. 

Dated at Rockville, Maryland, this 30th day 

of June 2010. 

For the Nuclear Regulatory Commission. 

Andrew Mauer, 

Chief, Source Management and Protection 

Branch, Division of Materials Safety and State 

Agreements, Office of Federal and State 

Materials and Environmental Management 

Programs. 

[FR Doc. 2010–17126 Filed 7–13–10; 8:45 am] 

BILLING CODE 7590–01–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2010–0596; Directorate 

Identifier 2010–NE–22–AD] 

RIN 2120–AA64 

Airworthiness Directives; Pratt & 

Whitney PW4000 Series Turbofan 

Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to adopt a 

new airworthiness directive (AD) for 

certain Pratt & Whitney PW4000 series 

turbofan engines. This proposed AD 

would require initial and repetitive 

borescope inspections (BSI) or 

fluorescent penetrant inspections (FPI) 

for cracks in the anti-vortex tube (AVT) 

shelf slots on the 10th stage disk of the 

high-pressure compressor (HPC) drum 

rotor disk assembly. This proposed AD 

results from 47 reports received since 

2007 of HPC 10th stage disks found 

cracked in the AVT shelf slots during 

shop visit inspections. We are proposing 

this AD to prevent failure of the HPC 

10th stage disk, uncontained engine 

failure, and damage to the airplane. 

DATES: We must receive any comments 

on this proposed AD by September 13, 

2010. 

ADDRESSES: Use one of the following 

addresses to comment on this proposed 

AD. 

• 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 Pratt & Whitney, 400 Main 

St., East Hartford, CT 06108; telephone 

(860) 565–8770; fax (860) 565–4503, for 

a copy of the service information 

identified in this proposed AD. 

FOR FURTHER INFORMATION CONTACT: 

James Gray, Aerospace Engineer, Engine 

Certification Office, FAA, Engine and 

Propeller Directorate, 12 New England 

Executive Park, Burlington, MA 01803; 

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

(781) 238–7742; fax (781) 238–7199. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

We invite you to send us any written 

relevant data, views, or arguments 

regarding this proposal. Send your 

comments to an address listed under 

ADDRESSES. Include ‘‘Docket No. FAA– 

2010–0596; Directorate Identifier 2010– 

NE–22–AD’’ in the subject line of your 

comments. We specifically invite 

comments on the overall regulatory, 

economic, environmental, and energy 

aspects of the proposed AD. We will 

consider all comments received by the 

closing date and may amend the 

proposed AD in light 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 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). 

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. 

Discussion 

Since 2007, we have received 47 

reports of HPC 10th stage disks found 

cracked in the AVT shelf slots during 

shop visit inspections. Investigation has 

revealed the root cause of the cracks to 

be the slot configuration in the 9th stage 

compressor stator inner shroud. The 

number of slots matches the number of 

anti-vortex tubes and causes an 

aerodynamic interaction during engine 

operation. This interaction results in 

high-cycle-fatigue cracks in the AVT 

shelf slots on the 10th stage disk of the 

HPC drum rotor disk assembly. This 

condition, if not corrected, could result 

in failure of the HPC 10th stage disk, 

uncontained engine failure, and damage 

to the airplane. 

Relevant Service Information 

We have reviewed and approved the 

technical contents of Pratt & Whitney 

Service Bulletin (SB) No. PW4ENG 72– 

799, dated January 22, 2010, and SB No. 

PW4G–100–72–226, dated April 22, 

2010, that describe procedures for 

inspecting for cracks in the AVT shelf 

slots on the 10th stage disk of the HPC 

drum rotor disk assembly. 

FAA’s Determination and Requirements 

of the Proposed AD 

We have evaluated all pertinent 

information and identified an unsafe 

condition that is likely to exist or 

develop on other products of this same 

type design. We are proposing this AD, 

which would require initial and 

repetitive BSI or FPI for cracks in the 

AVT shelf on the 10th stage disk of the 

HPC drum rotor disk assembly. The 

proposed AD would require you to use 

the service information described 

previously to perform these actions. 

Interim Actions 

These actions are interim actions and 

we may take further rulemaking actions 

in the future. 


wwoods2 on DSK1DXX6B1PROD with PROPOSALS_PART 1
40758 Federal Register / Vol. 75, No. 134 / Wednesday, July 14, 2010 / Proposed Rules 

Costs of Compliance 

We estimate that this proposed AD 

would affect 869 engines installed on 

airplanes of U.S. registry. We also 

estimate that it would take about one 

work-hour per engine to perform a 

proposed inspection, and that the 

average labor rate is $85 per work-hour. 

Required parts would cost about 

$303,010 per HPC drum rotor disk 

assembly. About 61 HPC drum rotor 

disk assemblies would need 

replacement due to cracks. Based on 

these figures, we estimate the cost of the 

AD on U.S. operators to be $18,557,475. 

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 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, Incorporation by reference, 

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– 

0596; Directorate Identifier 2010–NE– 

22–AD. 

Comments Due Date 

(a) The Federal Aviation Administration 

(FAA) must receive comments on this 

airworthiness directive (AD) action by 

September 13, 2010. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to the following Pratt 

& Whitney turbofan engines with a ring case 

configuration rear high-pressure compressor 

(HPC) installed. These engines are installed 

on, but not limited to, Boeing 747–200, 767– 

200/–300, and MD–11 airplanes, and Airbus 

A300–600, A310–300, A330–300, and A330– 

200 airplanes. 

PW4000–94’’ Engines 

(1) PW4000–94’’ series engine models 

PW4050, PW4052, PW4056, PW4060, 

PW4060A, PW4060C, PW4062, PW4062A, 

PW4152, PW4156, PW4156A, PW4158, 

PW4160, PW4460, PW4462, and PW4650, 

including all models with a dash number 

suffix. 

PW4000–100’’ Engines 

(2) PW4000–100’’ series engine models 

PW4168A–1D and PW4170 with serial 

numbers P735001 through P735039; and 

(3) All engines converted to PW4164–1D, 

PW4168–1D, PW4168A–1D, or PW4170 

model engines. 

Unsafe Condition 

(d) This AD results from 47 reports 

received since 2007 of HPC 10th stage disks 

found cracked in the AVT shelf slots during 

shop visit inspections. We are issuing this 

AD to prevent failure of the HPC 10th stage 

disk, uncontained engine failure, 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 Inspection of the AVT Shelf Slots 

(f) For engines listed in paragraphs (c)(1) 

and (c)(3) of this AD, do the following: 

(1) Remove the low-pressure turbine (LPT) 

shaft and borescope-inspect (BSI) for cracks 

in the AVT shelf slots on the 10th stage disk 

of the HPC drum rotor disk assembly; or 

(2) Remove the HPC drum rotor disk 

assembly and fluorescent-penetrant inspect 

(FPI) for cracks in the AVT shelf slots on the 

10th stage disk of the HPC drum rotor disk 

assembly. 

(3) Perform the inspection: 

(i) Within 7,200 cycles-in-service (CIS) 

since incorporation of any of the following 

Pratt & Whitney Service Bulletins: (SB) No. 

PW4ENG 72–755, SB No. PW4ENG 72–756, 

SB No. PW4ENG 72–757, SB No. PW4ENG 

72–759, or SB No. PW4G–100–72–220; or 

(ii) Within 1,000 CIS after the effective date 

of this AD, whichever occurs later. 

(4) If a crack is found, remove the HPC 

drum rotor disk assembly from service. 

(g) For engines listed in paragraph (c)(2) of 

this AD, do the following: 

(1) Remove the LPT shaft and BSI for 

cracks in the AVT shelf slots on the 10th 

stage disk of the HPC drum rotor disk 

assembly; or 

(2) Remove the HPC drum rotor disk 

assembly and FPI for cracks in the AVT shelf 

slots on the 10th stage disk of the HPC drum 

rotor disk assembly. 

(3) Perform the inspection: 

(i) Within 7,200 cycles-since-new; or 

(ii) Within 1,000 CIS after the effective date 

of this AD, whichever occurs later. 

(4) If a crack is found, remove the HPC 

drum rotor disk assembly from service. 

Repetitive Inspections of the AVT Shelf Slots 

(h) Thereafter, perform a BSI or FPI for 

cracks in the AVT shelf slots on the 10th 

stage HPC disk of the HPC drum rotor disk 

assembly within every 7,200 cycles-sincelast-inspection. 

(i) If a crack is found, remove the HPC 

drum rotor disk assembly from service. 

Relevant Service Bulletins 

(j) Use paragraphs 3.A through 3.H of the 

Accomplishment Instructions of Pratt & 

Whitney SB No. PW4ENG 72–799, dated 

January 22, 2010, to perform the BSIs for 

engines listed in paragraph (c)(1) of this AD. 

(k) Use paragraphs 3.A through 3.H of the 

Accomplishment Instructions of Pratt & 

Whitney SB No. PW4G–100–72–226, dated 

April 22, 2010, to perform the BSIs for 

engines listed in paragraphs (c)(2) and (c)(3) 

of this AD. 

Alternative Methods of Compliance 

(l) 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. 

Interim Actions 

(m) These actions are interim actions and 

we may take further rulemaking actions in 

the future. 


wwoods2 on DSK1DXX6B1PROD with PROPOSALS_PART 1
Federal Register / Vol. 75, No. 134 / Wednesday, July 14, 2010 / Proposed Rules 40759 

Related Information 

(n) Contact James Gray, Aerospace 

Engineer, Engine Certification Office, FAA, 

Engine and Propeller Directorate, 12 New 

England Executive Park, Burlington, MA 

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

telephone (781) 238–7742; fax (781) 238– 

7199, for more information about this AD. 

(o) Pratt & Whitney SB No. PW4ENG 72– 

799, dated January 22, 2010, and SB No. 

PW4G–100–72–226, dated April 22, 2010, 

pertain to the subject of this AD. Contact 

Pratt & Whitney, 400 Main St., East Hartford, 

CT 06108; telephone (860) 565–8770; fax 

(860) 565–4503, for a copy of this service 

information. 

Issued in Burlington, Massachusetts, on 

July 8, 2010. 

Peter A. White, 

Assistant Manager, Engine and Propeller 

Directorate, Aircraft Certification Service. 

[FR Doc. 2010–17145 Filed 7–13–10; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF COMMERCE 

National Oceanic and Atmospheric 

Administration 

15 CFR Part 922 

Initiation of Review of Management 

Plan/Regulations of the Hawaiian 

Islands Humpback Whale National 

Marine Sanctuary; Intent To Prepare 

Draft Environmental Impact Statement 

and Management Plan; Scoping 

Meetings 

AGENCY: Office of National Marine 

Sanctuaries (ONMS), National Ocean 

Service (NOS), National Oceanic and 

Atmospheric Administration (NOAA), 

Department of Commerce (DOC). 

ACTION: Notice of Intent to Initiate 

Review of Management Plan/ 

Regulations; Intent to Prepare 

Environmental Impact Statement; 

Scoping Meetings. 

SUMMARY: In accordance with section 

304(e) of the National Marine 

Sanctuaries Act, as amended, (NMSA) 

(16 U.S.C. 1431 et seq.), the Office of 

National Marine Sanctuaries (ONMS) of 

the National Oceanic and Atmospheric 

Administration (NOAA) has initiated a 

review of the Hawaiian Islands 

Humpback Whale National Marine 

Sanctuary (HIHWNMS or sanctuary) 

management plan, to evaluate 

substantive progress toward 

implementing the goals for the 

sanctuary, and to make revisions to its 

management plan and regulations as 

necessary to fulfill the purposes and 

policies of the NMSA and the Hawaiian 

Islands National Marine Sanctuary Act 

(HINMSA; Title II, Subtitle C, Pub. L. 

102–587). The present management plan 

was written as part of the sanctuary’s 

management plan review process in 

2002 and did not contain any regulatory 

or boundary changes from the 

implementing regulations that became 

effective December 29, 1999 (64 FR 

63262). NOAA anticipates completion 

of the revised management plan and 

concomitant documents will require 

approximately thirty-six months from 

the date of publication of this Notice of 

Intent. The management plan review 

process occurs concurrently with a 

public process under the National 

Environmental Policy Act (NEPA; 42 

U.S.C. 4321 et seq.). This notice also 

confirms that NOAA will coordinate its 

responsibilities under section 106 of the 

National Historic Preservation Act 

(NHPA, 16 U.S.C. 470) with its ongoing 

NEPA process, pursuant to 36 CFR 

800.8(a)—coordination with NEPA— 

including the use of NEPA documents 

and public and stakeholder meetings to 

also meet the section 106 requirements. 

DATES: All comments on issues related 

to the continued management of the 

Hawaiian Islands Humpback Whale 

National Marine Sanctuary will be 

considered if received on or before 

October 16, 2010. See SUPPLEMENTARY

INFORMATION section below for the dates, 

times, and locations of the public 

scoping meetings. 

ADDRESSES: All written inquiries and 

comments may be sent to: Management 

Plan Review Coordinator, Hawaiian 

Islands Humpback Whale National 

Marine Sanctuary, 6600 Kalaniana’ole 

Highway, Suite 301, Honolulu, Hawai’i 

96825 or faxed to (808) 397–2650. 

Electronic comments may be sent to: 

hihwmanagementplan@noaa.gov. 

All comments received are a part of 

the public record. All Personal 

Identifying Information (for example, 

name, address, etc.) voluntarily 

submitted by the commenter may be 

publicly accessible. Do not submit 

confidential business information or 

otherwise sensitive or protected 

information. NOAA will accept 

anonymous comments. Attachments to 

electronic comments will be accepted in 

Microsoft Word, Excel, Wordperfect, or 

Adobe PDF file formats only. 

FOR FURTHER INFORMATION CONTACT: 

Malia Chow, Policy Advisor, Telephone: 

(808) 397–2651. 

SUPPLEMENTARY INFORMATION: 

Background Information 

The Hawaiian Islands Humpback 

Whale National Marine Sanctuary 

(sanctuary) was designated by Congress 

in 1992 as the 12th national marine 

sanctuary in the U.S. Its primary 

mission is to protect humpback whales 

(Megaptera novaeangliae) and their 

habitat in Hawai’i. The sanctuary 

enables citizens and government to 

work collectively on safeguarding 

humpback whale breeding and calving 

range in waters around the main 

Hawaiian Islands, an area that supports 

over half the North Pacific humpback 

whale population and constitutes one of 

the world’s most important humpback 

whale habitats. Encompassing 3,548 

square kilometers (1,370 square miles) 

of federal and state waters surrounding 

the main Hawaiian Islands, the 

sanctuary extends from the shoreline to 

the 100-fathom isobath (183-meter or 

600 foot depth) and is composed of five 

separate marine protected areas (MPAs) 

accessible from six of the eight main 

Hawaiian Islands. The sanctuary’s 

configuration presents unique 

challenges and opportunities for 

protecting sanctuary resources, 

developing programs, and increasing 

public awareness of humpback whales 

throughout the state. 

In accordance with Section 304(e) of 

the National Marine Sanctuaries Act, as 

amended (NMSA), 16 U.S.C. 1431 et 

seq., the Office of National Marine 

Sanctuaries (ONMS) of the National 

Oceanic and Atmospheric 

Administration (NOAA) is initiating a 

review of the current management plan 

to evaluate the substantive progress 

made toward implementing the goals for 

the sanctuary, and to make revisions to 

the plan and regulations as necessary to 

fulfill the purposes and policies of the 

NMSA. The proposed revised 

management plan may involve changes 

to existing policies and regulations of 

the sanctuary, as well as address current 

and emerging topics, challenges, and 

opportunities to better protect and 

manage the sanctuary’s resources and 

qualities. The review process is 

composed of four primary stages: 

(1) Information collection and 

characterization, including public 

scoping meetings; 

(2) Preparation and release of a 

revised draft management plan/ 

environmental evaluation that includes 

any proposed new regulations or 

amendments to current regulations; 

(3) Public review and comment on the 

draft plan; and 

(4) Preparation and release of a final 

management plan/environmental 

evaluation that could also include new 

regulations to fully implement the 

revised management plan. 

NOAA anticipates that the completion 

of the revised management plan and 

concomitant documents will require 

approximately twenty-four to thirty-six 

months. 


wwoods2 on DSK1DXX6B1PROD with PROPOSALS_PART 1