56794 Federal Register / Vol. 77, No. 179 / Friday, September 14, 2012 / Proposed Rules 

be able to give the future rulemaking a 

high priority but will strive to complete 

it as resources are available. 

Although the petitioner requests the 

NRC to amend 10 CFR 30.18, the 

proposed amendment to the exempt 

quantities regulation may not be the best 

solution to resolve the issue raised in 

the petition. In the rulemaking process, 

the NRC will attempt to develop a 

technical basis to support an 

appropriate proposed rulemaking that 

would address the issue raised in the 

petition. If a technical basis to support 

a rulemaking cannot be developed, the 

issue will not be further considered by 

the NRC. 

The NRC tracks all rulemaking actions 

on its Web site at http://www.nrc.gov/ 

reading-rm/doc-collections/rulemakingruleforum/ and on the Federal 

rulemaking Web site, http:// 

www.regulations.gov. The 

Regulations.gov Web site allows users to 

receive notifications when documents 

are added to a docket. To monitor 

further NRC action on the issue raised 

in PRM–30–65, register for notification 

under docket ID NRC–2011–0134. In 

addition, the NRC publishes a Unified 

Agenda, which is a semiannual 

compilation of all rules on which the 

NRC has recently completed action, has 

proposed action, or is considering 

action. The Unified Agenda may be 

found on the NRC’s rulemaking Web 

site at http://www.nrc.gov/about-nrc/ 

regulatory/rulemaking.html. As in all 

rulemakings, the NRC will solicit and 

consider public comments during the 

proposed rule phase of the rulemaking 

before determining the approach that 

will be the basis for the final rule. 

For the reasons cited in this 

document, the NRC will consider this 

petition as part of its rulemaking 

process. 

Dated at Rockville, Maryland, this 23rd day 

of August, 2012. 

For the Nuclear Regulatory Commission. 

R.W. Borchardt, 

Executive Director for Operations. 

[FR Doc. 2012–22699 Filed 9–13–12; 8:45 am] 

BILLING CODE 7590–01–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2012–0416; Directorate 

Identifier 2012–NE–13–AD] 

RIN 2120–AA64 

Airworthiness Directives; Pratt & 

Whitney Canada Corp. Turboprop 

Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to supersede an 

existing airworthiness directive (AD) 

that applies to all Pratt & Whitney 

Canada Corp. (P&WC) PW118, PW118A, 

PW118B, PW119B, PW119C, PW120, 

PW120A, PW121, PW121A, PW123, 

PW123B, PW123C, PW123D, PW123E, 

PW123AF, PW124B, PW125B, PW126A, 

PW127, PW127E, PW127F, PW127G, 

and PW127M turboprop engines. The 

existing AD currently requires initial 

and repetitive inspections of certain 

serial numbers (S/Ns) of propeller shafts 

for cracks and removal from service if 

found cracked. Since we issued that AD, 

we determined the need to add a 

mandatory terminating action for the 

repetitive inspections. This proposed 

AD would require initial and repetitive 

inspections of certain S/Ns of propeller 

shafts for cracks and removal from 

service if found cracked, and would 

require removal from service of affected 

propeller shafts as mandatory 

terminating action to the repetitive 

inspections. We are proposing this AD 

to detect propeller shaft cracks, which 

could cause failure of the shaft, 

propeller release, and loss of control of 

the airplane. 

DATES: We must receive comments on 

this proposed AD by November 13, 

2012. 

ADDRESSES: You may send comments, 

using the procedures found in 14 CFR 

11.43 and 11.45, 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: Deliver to Mail 

address above between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. 

For service information identified in 

this AD, contact Pratt & Whitney Canada 

Corp., 1000 Marie-Victorin, Longueuil, 

Quebec, Canada, J4G 1A1; phone: 800– 

268–8000; fax: 450–647–2888; Web site: 

www.pwc.ca. 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 Management Facility 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 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: 

James Lawrence, Aerospace Engineer, 

Engine Certification Office, FAA, Engine 

& Propeller Directorate, 12 New England 

Executive Park, Burlington, MA 01803; 

email: james.lawrence@faa.gov; phone: 

781–238–7176; 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–2012–0416; Directorate Identifier 

2012–NE–13–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 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 proposed AD. 

Discussion 

On May 31, 2012, we issued AD 

2012–11–14, Amendment 39–17078 (77 

FR 39624, July 5, 2012), for all P&WC 

PW118, PW118A, PW118B, PW119B, 

PW119C, PW120, PW120A, PW121, 

PW121A, PW123, PW123B, PW123C, 

PW123D, PW123E, PW123AF, PW124B, 

PW125B, PW126A, PW127, PW127E, 


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Federal Register / Vol. 77, No. 179 / Friday, September 14, 2012 / Proposed Rules 56795 

PW127F, PW127G, and PW127M 

turboprop engines. That AD requires 

initial and repetitive inspections of 

certain S/Ns of propeller shafts for 

cracks and removal from service if 

found cracked. That AD resulted from 

reports of two propeller shafts found 

cracked at time of inspection during 

maintenance. We issued that AD to 

detect propeller shaft cracks, which 

could cause failure of the shaft, 

propeller release, and loss of control of 

the airplane. 

Actions Since Existing AD Was Issued 

Since we issued AD 2012–11–14 (77 

FR 39624, July 5, 2012), we determined 

the need to add a mandatory 

terminating action for the repetitive 

inspections of the affected propeller 

shafts, by requiring the removal from 

service of the propeller shafts. 

Relevant Service Information 

We reviewed P&WC Alert Service 

Bulletin (ASB) No. PW100–72–A21813, 

Revision 3, dated March 21, 2012. That 

ASB provides instructions for 

identifying the location of repaired 

propeller shafts for which compliance to 

the nickel plating repair process cannot 

be determined and for inspecting for 

cracks in the inner bore of the propeller 

shafts identified by S/N in Tables 1 and 

2 of that ASB. We also reviewed P&WC 

ASB No. PW100–72–A21802, Revision 

4, dated March 16, 2012. That ASB 

provides instructions for removing the 

affected propeller shafts that are 

identified by S/N in Table 1 of that ASB. 

We also reviewed P&WC Special 

Instruction P&WC No. 22–2012, R2, 

dated April 4, 2012. That service 

information provides instructions for 

performing ultrasonic inspections to the 

affected propeller shafts to comply with 

the inspection requirement of ASB No. 

PW100–72–A21813, Revision 3, dated 

March 21, 2012. We also reviewed 

P&WC ASB No. PW100–72–A21798, 

Revision 5, dated March 20, 2012. That 

ASB provides instructions for 

performing mandatory replacement of 

the affected propeller shafts that are 

identified by S/N in Tables 1 and 2 of 

that ASB. 

FAA’s Determination 

We are proposing 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. 

Proposed AD Requirements 

This proposed AD would retain the 

requirements of AD 2012–11–14 (77 FR 

39624, July 5, 2012), except it would 

require the initial inspection done 

before further flight, as operators should 

have already complied with the initial 

compliance times in that AD. This 

proposed AD would add a mandatory 

terminating action to the repetitive 

inspections of the affected propeller 

shafts, by removing those propeller 

shafts from service. 

Costs of Compliance 

We estimate that this proposed AD 

would affect 570 engines installed on 

airplanes of U.S. registry. We estimate 

that it would take 6 work-hours per 

engine to remove the propeller shaft for 

inspection, 1 work-hour to perform the 

inspection, 65 work-hours to remove 

and reinstall the engine if needed, and 

35 work-hours to replace the propeller 

shaft. We estimate that consumable 

materials would cost $2,200 per engine, 

and required engine testing would cost 

$5,000. The average labor rate is $85 per 

work-hour. We expect that about 30 

engines would be found with propeller 

shafts requiring a replacement propeller 

shaft. Based on these figures, we 

estimate the cost of the proposed AD on 

U.S. operators to be $1,028,850. 

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 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), 

(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. 

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 

removing airworthiness directive (AD) 

2012–11–14, Amendment 39–17078 (77 

FR 39624, July 5, 2012), and adding the 

following new AD: 

Pratt & Whitney Canada Corp. (formerly 

Pratt & Whitney Canada Inc.): Docket 

No. FAA–2012–0416; Directorate 

Identifier 2012–NE–13–AD. 

(a) Comments Due Date 

The FAA must receive comments on this 

AD action by November 13, 2012. 

(b) Affected ADs 

This AD supersedes AD 2012–11–14 (77 

FR 39624, July 5, 2012). 

(c) Applicability 

This AD applies to all Pratt & Whitney 

Canada Corp. (P&WC) PW118, PW118A, 

PW118B, PW119B, PW119C, PW120, 

PW120A, PW121, PW121A, PW123, 

PW123B, PW123C, PW123D, PW123E, 

PW123AF, PW124B, PW125B, PW126A, 

PW127, PW127E, PW127F, PW127G, and 

PW127M turboprop engines, with the serial 

number (S/N) propeller shafts listed in P&WC 

Alert Service Bulletin (ASB) No. PW100–72– 

A21813, Revision 3, dated March 21, 2012, 

ASB No. PW100–72–A21802, Revision 4, 

dated March 16, 2012, and ASB No. PW100– 

72–A21798, Revision 5, dated March 20, 

2012. 

(d) Unsafe Condition 

This AD was prompted by reports of two 

propeller shafts found cracked at time of 

inspection during maintenance. We are 

issuing this AD to detect propeller shaft 


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cracks, which could cause failure of the shaft, 

propeller release, and loss of control of the 

airplane. 

(e) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(f) Inspecting Propeller Shafts 

(1) For propeller shafts with an S/N listed 

in Table 1 and Table 2 of P&WC ASB No. 

PW100–72–A21813, Revision 3, dated March 

21, 2012: 

(i) For engines not yet initially inspected 

per AD 2012–11–14 (77 FR 39624, July 5, 

2012), before further flight, perform either an 

initial visual inspection or an initial 

ultrasonic inspection (UI) for cracks, in 

accordance with paragraphs 3.C.(1) through 

3.C.(1)(a), and 3.C.(2) of P&WC ASB No. 

PW100–72–A21813, Revision 3, dated March 

21, 2012, and Section 9 of P&WC Special 

Instruction (SI) P&WC No. 22–2012, R2, 

dated April 4, 2012. 

(ii) If the visual inspection was performed, 

repeat the visual inspection within 50 engine 

flight hours (EFH) after the initial inspection, 

and thereafter every 10 EFH, until the 

propeller shaft is removed from service. 

(iii) If the UI was performed, repeat the UI 

at intervals not to exceed 1,000 EFH, until 

the propeller shaft is removed from service. 

(2) If a crack is found during any of the 

inspections required by this AD, remove the 

propeller shaft from service before the next 

flight. 

(g) Mandatory Terminating Action 

As mandatory terminating action to the 

repetitive inspections required by AD 2012– 

11–14, (77 FR 39624, July 5, 2012): 

(1) For propeller shafts with an S/N listed 

in Table 1 of P&WC ASB No. PW100–72– 

A21802, Revision 4, dated March 16, 2012, 

remove the propeller shafts from service 

before further flight. 

(2) For affected S/N propeller shafts listed 

in Table 1 of P&WC ASB No. PW100–72– 

A21798, Revision 5, dated March 20, 2012, 

remove the propeller shafts from service 

within 6 months after the effective date of 

this AD. 

(3) For affected S/N propeller shafts listed 

in Table 2 of P&WC ASB No. PW100–72– 

A21798, Revision 5, dated March 20, 2012, 

remove the propeller shafts from service 

within 12 months after the effective date of 

this AD. 

(h) Installation Prohibition 

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

not install any propeller shaft S/Ns listed in 

Table 1 of P&WC ASB No. PW100–72– 

A21802, Revision 4, dated March 16, 2012, 

into any engine. 

(2) After the effective date of this AD, do 

not install any propeller shaft S/Ns listed in 

Table 1 and Table 2 of P&WC ASB No. 

PW100–72–A21798, Revision 5, dated March 

20, 2012, into any engine. 

(i) Credit for Actions Accomplished in 

Accordance With Previous Service 

Information 

(1) Initial inspections performed using 

P&WC ASB No. PW100–72–A21813, 

Revision 3, dated March 21, 2012 or earlier 

revisions, satisfy the initial inspection 

requirements of paragraph (f) of this AD. 

However, you must perform the repetitive 

inspection intervals specified in paragraph 

(f). 

(2) Ultrasonic inspections performed per SI 

P&WC 22–2012R2, dated April 4, 2012, or 

earlier revisions satisfy the requirements of 

paragraph (f) 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) Special Flight Permit 

No special flight permits will be issued for 

this AD. 

(l) Related Information 

(1) For more information about this AD, 

contact James Lawrence, Aerospace Engineer, 

Engine Certification Office, FAA, Engine & 

Propeller Directorate, 12 New England 

Executive Park, Burlington, MA 01803; 

email: james.lawrence@faa.gov; phone: 781– 

238–7176; fax: 781–238–7199. 

(2) Refer to Transport Canada AD No. CF– 

2012–12, dated March 26, 2012, for related 

information. 

(3) For service information identified in 

this AD, contact Pratt & Whitney Canada 

Corp., 1000 Marie-Victorin, Longueuil, 

Quebec, Canada, J4G 1A1; phone: 800–268– 

8000; fax: 450–647–2888; Web site: 

www.pwc.ca. 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 6, 2012. 

Robert G. Mann, 

Acting Manager, Engine & Propeller 

Directorate, Aircraft Certification Service. 

[FR Doc. 2012–22527 Filed 9–13–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 71 

[Docket No. FAA–2012–0791; Airspace 

Docket No. 12–AGL–9] 

Proposed Amendment of Class E 

Airspace; Sault Ste Marie, ON 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: This action proposes to 

amend Class E airspace at Sault Ste 

Marie, ON. Changes to controlled 

airspace are necessary to coincide with 

the Canadian control zone over Sault 

Ste Marie Airport. The FAA is taking 

this action to enhance the safety and 

management of Instrument Flight Rules 

(IFR) operations at the airport. 

DATES: 0901 UTC. Comments must be 

received on or before October 29, 2012. 

ADDRESSES: Send comments on this 

proposal to the U.S. Department of 

Transportation, Docket Operations, 1200 

New Jersey Avenue SE., West Building 

Ground Floor, Room W12–140, 

Washington, DC 20590–0001. You must 

identify the docket number FAA–2012– 

0791/Airspace Docket No. 12–AGL–9, at 

the beginning of your comments. You 

may also submit comments through the 

Internet at http://www.regulations.gov. 

You may review the public docket 

containing the proposal, any comments 

received, and any final disposition in 

person in the Dockets Office between 9 

a.m. and 5 p.m., Monday through 

Friday, except Federal holidays. The 

Docket Office (telephone 1–800–647– 

5527), is on the ground floor of the 

building at the above address. 

FOR FURTHER INFORMATION CONTACT: 

Scott Enander, Central Service Center, 

Operations Support Group, Federal 

Aviation Administration, Southwest 

Region, 2601 Meacham Blvd., Fort 

Worth, TX 76137; telephone: (817) 321– 

7716. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

Interested parties are invited to 

participate in this proposed rulemaking 

by submitting such written data, views, 

or arguments, as they may desire. 

Comments that provide the factual basis 

supporting the views and suggestions 

presented are particularly helpful in 

developing reasoned regulatory 

decisions on the proposal. Comments 

are specifically invited on the overall 

regulatory, aeronautical, economic, 

environmental, and energy-related 

aspects of the proposal. 

Communications should identify both 

docket numbers and be submitted in 

triplicate to the address listed above. 

Commenters wishing the FAA to 

acknowledge receipt of their comments 

on this notice must submit with those 

comments a self-addressed, stamped 

postcard on which the following 

statement is made: ‘‘Comments to 

Docket No. FAA–2012–0791/Airspace 

Docket No. 12–AGL–9.’’ The postcard 

will be date/time stamped and returned 

to the commenter. 

Availability of NPRMs 

An electronic copy of this document 

may be downloaded through the 

Internet at http://www.regulations.gov. 


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