Federal Register / Vol. 76, No. 74 / Monday, April 18, 2011 / Proposed Rules 21675 

the Government, except for purposes of 

review and evaluation.’’ 

Evaluation and Administration by 

Federal and Non-Federal Personnel: 

Government civil servant employees are 

subject to the non-disclosure obligations 

of a felony criminal statute, the Trade 

Secrets Act, 18 U.S.C. 1905. The 

Government may seek the advice of 

qualified non-Federal personnel. The 

Government may also use non-Federal 

personnel to conduct routine, 

nondiscretionary administrative 

activities. The commenter, by 

submitting its response, consents to 

DOE providing its response to nonFederal parties. 

Non-Federal parties given access to 

responses must be subject to an 

appropriate obligation of confidentiality 

prior to being given the access. 

Comments may be reviewed by support 

contractors and private consultants. 

Issued in Washington, DC, on April 8, 

2011. 

Kathleen B. Hogan, 

Deputy Assistant Secretary for Energy 

Efficiency, Office of Technology 

Development, Energy Efficiency and 

Renewable Energy. 

[FR Doc. 2011–9274 Filed 4–15–11; 8:45 am] 

BILLING CODE 6450–01–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2010–1270; 

Directorate Identifier 2001–NE–50–AD] 

RIN 2120–AA64 

Airworthiness Directives; Dowty 

Propellers Type R321/4–82–F/8, R324/ 

4–82–F/9, R333/4–82–F/12, and R334/4– 

82–F/13 Propeller Assemblies 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to revise an 

existing airworthiness directive (AD) 

that applies to the products listed above. 

The existing AD currently requires 

initial and repetitive ultrasonic 

inspections of propeller hubs, part 

number (P/N) 660709201. Since we 

issued that AD, Dowty Propellers 

introduced a new hub assembly P/N. 

This proposed AD would revise that AD 

by introducing as an optional 

terminating action for the initial and 

repetitive ultrasonic inspections of that 

AD, replacement of propeller hub P/N 

660709201 with a new propeller hub, 

P/N 660717226. We are proposing this 

AD to prevent that same propeller hub 

failure due to cracks in the hub, which 

could result in loss of control of the 

airplane, and to introduce an optional 

terminating action. 

DATES: We must receive comments on 

this proposed AD by June 2, 2011. 

ADDRESSES: You may send comments 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 Dowty Propellers, 

Anson Business Park, Cheltenham Road 

East, Gloucester GL 29QN, UK; 

telephone: 44 (0) 1452 716000; fax: 44 

(0) 1452 716001. You may review copies 

of the referenced 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: 

Michael Schwetz, Aerospace Engineer, 

Boston Aircraft Certification Office, 

FAA, 12 New England Executive Park, 

Burlington, MA 01803; phone: 781– 

238–7761; fax: 781–238–7170; e-mail: 

michael.schwetz@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–2010–1270; Directorate Identifier 

2001–NE–50–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 December 2, 2005, we issued AD 

2005–25–10, Amendment 39–14403 (70 

FR 73364, December 12, 2005), for 

Dowty Propellers type R321/4–82–F/8, 

R324/4–82–F/9, R333/4–82–F/12, and 

R334/4–82–F/13 propeller assemblies. 

That AD requires initial and repetitive 

ultrasonic inspections of propeller hubs, 

P/N 660709201. That AD resulted from 

a report of a hub separation on a CASA 

212 airplane, and mandatory continuing 

airworthiness information (MCAI) 

issued by an aviation authority of 

another country to identify and correct 

an unsafe condition on an aviation 

product. We issued that AD to prevent 

propeller hub failure due to cracks in 

the hub, which could result in loss of 

control of the airplane. 

Actions Since Existing AD Was Issued 

Since we issued AD 2005–25–10, the 

European Aviation Safety Agency 

(EASA) has issued AD 2010–0196R1, 

dated November 12, 2010, which 

requires initial and repetitive ultrasonic 

inspections of propeller hubs, and 

introduces a new P/N propeller hub as 

optional terminating action to the 

inspections. 

Relevant Service Information 

We have reviewed the technical 

contents of Dowty Propellers Alert 

Service Bulletin (SB) No. 61–1119, 

Revision 5, dated July 1, 2009, Alert SB 

No. 61–1124, Revision 2, dated August 

25, 2010, Alert SB No. 61–1125, 

Revision 2, dated August 25, 2010, and 

Alert SB No. 61–1126, Revision 2, dated 

August 25, 2010. The SBs describe 

procedures for initial and repetitive 

ultrasonic inspections of the rear wall of 

the rear half of the propeller hub for 

cracks on types R334/4–82–F/13, R333/ 

4–82–F/12, R321/4–82–F/8, and R324/ 

4–82–F/9 propeller assemblies, 

respectively. The SBs also introduce 

new hub assembly P/N 660717226, as 

optional terminating action for the 

initial and repetitive inspections. EASA 


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21676 Federal Register / Vol. 76, No. 74 / Monday, April 18, 2011 / Proposed Rules 

classified the service information as 

mandatory and issued AD 2010– 

0196R1, dated November 12, 2010, to 

ensure the airworthiness of these 

propeller assemblies in Europe. 

Bilateral Agreement Information 

These propeller assemblies are 

manufactured in the United Kingdom, 

and are type certificated for operation in 

the United States under the provisions 

of Section 21.29 of the Federal Aviation 

Regulations (14 CFR 21.29) and the 

applicable bilateral airworthiness 

agreement. Under this bilateral 

airworthiness agreement, EASA kept us 

informed of the situation described 

above. We have examined the findings 

of the EASA, reviewed all available 

information, and determined that AD 

action is necessary for products of these 

type designs that are certificated for 

operation in the United States. 

FAA’s Determination 

We are proposing this AD revision 

because we evaluated all the relevant 

information and determined the unsafe 

condition described previously is likely 

to exist or develop in other products of 

these same type designs. 

Proposed AD Requirements 

This proposed AD would retain the 

inspection requirements of AD 2005– 

25–10. This proposed AD would 

introduce the installation of a new P/N 

hub assembly as optional terminating 

action to the inspections. This proposed 

AD would also eliminate the inspection 

reporting requirements, since we have 

already collected sufficient data. 

Differences Between the Proposed AD 

and the Service Information or MCAI 

Although Appendix A of Alert SB No. 

61–1119, Revision 5, dated July 1, 2009, 

requires reporting the inspection data to 

Dowty Propellers, this proposed AD 

would not require any reporting. 

Although the MCAI uses initial 

inspection compliance times of 20 days/ 

60 days, we removed them from the 

proposed AD, since the unsafe 

condition is not related to corrosion. 

Costs of Compliance 

We estimate that this proposed AD 

would affect 132 propellers installed on 

airplanes of U.S. registry. We also 

estimate that it would take about 0.5 

work-hour per propeller to perform the 

proposed inspection and about 1 hour to 

replace a propeller hub. The average 

labor rate is $85 per work-hour. 

Required parts would cost about 

$19,500 per engine. Based on these 

figures, we estimate the total cost of the 

proposed AD to U.S. operators to be 

$2,590,830. 

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) 

2005–25–10, Amendment 39–14403 

(70 FR 73364, December 12, 2005), and 

adding the following new AD: 

Dowty Propellers (formerly Dowty 

Aerospace; Dowty Rotol Limited; and 

Dowty Rotol): Docket No. FAA–2010– 

1270; Directorate Identifier 2001–NE– 

50–AD. 

Comments Due Date 

(a) The FAA must receive comments on 

this AD action by June 2, 2011. 

Affected ADs 

(b) This AD revises AD 2005–25–10, 

Amendment 39–14403. 

Applicability 

(c) This AD applies to Dowty Propellers 

Type R321/4–82–F/8, R324/4–82–F/9, R333/ 

4–82–F/12, and R334/4–82–F/13 propeller 

assemblies with propeller hubs part number 

(P/N) 660709201. 

Unsafe Condition 

(d) This AD was prompted by the need to 

introduce an optional terminating action for 

the repetitive inspections. We are issuing this 

AD to prevent propeller hub failure due to 

cracks in the hub, which could result in loss 

of control of the airplane, and to introduce 

an optional terminating action. 

Compliance 

(e) Comply with this AD within the 

compliance times specified, unless already 

done. 

Initial Ultrasonic Inspections 

(f) Perform an initial ultrasonic inspection 

of the rear wall of the rear half of the 

propeller hub for cracks within the 

compliance time specified in Table 1 of this 

AD. Use Appendix A or Appendix D of the 

applicable Dowty Alert Service Bulletin (SB) 

listed in Table 1 of this AD to do the 

inspection. 


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Federal Register / Vol. 76, No. 74 / Monday, April 18, 2011 / Proposed Rules 21677 

TABLE 1—APPLICABLE ALERT SB FOR PROPELLER TYPE

Propeller assembly type Initial inspection within Repeat inspection within Applicable SB 

(1) R334/4–82–F/13 ....................... 10 flight hours (FH) time-in-service (TIS) after the effective date 

of this AD.

300 FH time-since-last-inspection 

(TSLI) or 300 flight cyclessince-last inspection, whichever 

occurs sooner.

Alert SB No. 61–1119, Revision 5, 

dated July 1, 2009. 

(2) R321/4–82–F/8 ......................... 50 FH TIS after the effective date 

of this AD.

1,000 FH TSLI .............................. Alert SB No. 61–1125, Revision 2, 

dated August 25, 2010. 

(3) R324/4–82–F/9 ......................... 50 FH TIS after the effective date 

of this AD.

1,000 FH TSLI .............................. Alert SB No. 61–1126, Revision 2, 

dated August 25, 2010. 

(4) R333/4–82–F/12 ....................... 50 FH TIS after the effective date 

of this AD.

1,000 FH TSLI .............................. Alert SB No. 61–1124, Revision 2, 

dated August 25, 2010. 

(g) For hubs and propellers in storage, 

perform an initial ultrasonic inspection of the 

rear wall of the rear half of the propeller hub 

for cracks, before placing in service. Use 

Appendix A or Appendix D of the applicable 

Dowty Alert SB listed in Table 1 of this AD 

to do the inspection. 

Initial Inspection—Previous Credit 

(h) Propeller hubs, P/N 660709201, that 

previously passed inspection using Dowty 

Alert SBs listed in Table 1 of this AD or an 

earlier issue of those SBs, have satisfied the 

initial inspection requirements of this AD. 

However, you must comply with the 

repetitive inspection requirements found in 

this AD. 

Repetitive Ultrasonic Inspections 

(i) Thereafter, perform a repetitive 

ultrasonic inspection of the rear wall of the 

rear half of the propeller hub for cracks 

within the compliance time specified in 

Table 1 of this AD. Use Appendix A or 

Appendix D of the applicable Dowty Alert SB 

listed in Table 1 of this AD to do the 

inspection. 

Optional Terminating Action 

(j) As optional terminating action for the 

repetitive inspections required by this AD, 

replace propeller hub, P/N 660709201, with 

a new propeller hub, P/N 660717226. 

Alternative Methods of Compliance 

(AMOCs) 

(k) The Manager, Boston Certification 

Office, has the authority to approve AMOCs 

for this AD if requested using the procedures 

found in 14 CFR 39.19. 

Related Information 

(l) For more information about this AD, 

contact Michael Schwetz, Aerospace 

Engineer, Boston Aircraft Certification Office, 

FAA, 12 New England Executive Park, 

Burlington, MA 01803; phone: 781–238– 

7761; fax: 781–238–7170; e-mail: 

michael.schwetz@faa.gov. 

(m) European Aviation Safety Agency 

2010–0196R1, dated November 12, 2010, 

pertains to the subject of this AD. 

(n) For service information identified in 

this AD, contact Dowty Propellers, Anson 

Business Park, Cheltenham Road East, 

Gloucester GL 29QN, UK; telephone: 44 (0) 

1452 716000; fax: 44 (0) 1452 716001. You 

may review copies of the referenced 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 

April 7, 2011. 

Peter A. White, 

Acting Manager, Engine & Propeller 

Directorate, Aircraft Certification Service. 

[FR Doc. 2011–9258 Filed 4–15–11; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF HOMELAND 

SECURITY 

Coast Guard 

33 CFR Part 165 

[Docket No. USCG–2011–0188] 

RIN 1625–AA00 

Safety Zones; Annual Events 

Requiring Safety Zones in the Captain 

of the Port Sault Sainte Marie Zone 

AGENCY: Coast Guard, DHS. 

ACTION: Notice of proposed rulemaking. 

SUMMARY: The Coast Guard proposes to 

establish regulations requiring safety 

zones in the Captain of the Port Sault 

Sainte Marie zone. This proposed rule is 

intended to establish safety zones that 

will restrict vessels from certain 

portions of water areas within the Sector 

Sault Ste Marie Captain of the Port zone, 

as defined by our regulations. These 

proposed safety zones are necessary to 

protect spectators, participants, and 

vessels from the hazards associated with 

various maritime events. 

DATES: Comments and related materials 

must be received by the Coast Guard on 

or before May 18, 2011. 

ADDRESSES: You may submit comments 

identified by docket number USCG– 

2011–0188 using any one of the 

following methods: 

(1) Federal eRulemaking Portal: 

http://www.regulations.gov. 

(2) Fax: 202–493–2251. 

(3) Mail: Docket Management Facility 

(M–30), U.S. Department of 

Transportation, West Building Ground 

Floor, Room W12–140, 1200 New Jersey 

Avenue, SE., Washington, DC 20590– 

0001. 

(4) Hand delivery: Same as mail 

address above, between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. The telephone number 

is 202–366–9329. 

To avoid duplication, please use only 

one of these four methods. See the 

‘‘Public Participation and Request for 

Comments’’ portion of the 

SUPPLEMENTARY INFORMATION section 

below for instructions on submitting 

comments. 

FOR FURTHER INFORMATION CONTACT: If 

you have questions on this proposed 

rule, call or e-mail BMC Gregory Ford, 

Prevention Department, Coast Guard, 

Sector Sault Sainte Marie, MI, telephone 

(906) 635–3222, e-mail 

Gregory.C.Ford@uscg.mil. If you have 

questions on viewing or submitting 

material to the docket, call Renee V. 

Wright, Program Manager, Docket 

Operations, telephone 202–366–9826. 

SUPPLEMENTARY INFORMATION: 

Public Participation and Request for 

Comments 

We encourage you to participate in 

this rulemaking by submitting 

comments and related materials. All 

comments received will be posted, 

without change, to http:// 

www.regulations.gov and will include 

any personal information you have 

provided. 

Submitting Comments 

If you submit a comment, please 

include the docket number for this 

rulemaking (USCG–2011–0188), 

indicate the specific section of this 

document to which each comment 

applies, and provide a reason for each 

suggestion or recommendation. You 

may submit your comments and 

material online (via http:// 

www.regulations.gov) or by fax, mail, or 

hand delivery, but please use only one 

of these means. If you submit a 


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