This section of the FEDERAL REGISTER

contains notices to the public of the proposed

issuance of rules and regulations. The

purpose of these notices is to give interested

persons an opportunity to participate in the

rule making prior to the adoption of the final

rules.

Proposed Rules Federal Register

17362 

Vol. 76, No. 60 

Tuesday, March 29, 2011 

NUCLEAR REGULATORY 

COMMISSION 

10 CFR Part 35 

Advisory Committee on the Medical 

Uses of Isotopes: Meeting 

AGENCY: U.S. Nuclear Regulatory 

Commission (NRC). 

ACTION: Notice of meeting. 

SUMMARY: NRC will convene a meeting 

of the Advisory Committee on the 

Medical Uses of Isotopes (ACMUI) on 

April 11–12, 2011. This will be a public 

meeting, and the final agenda is under 

development. A sample of agenda items 

to be discussed during this session 

includes: (1) Written directives and 

medical event reporting for permanent 

implant brachytherapy; (2) amending 

preceptor attestation requirements, 

(3) extending grandfathering to certain 

certified individuals regarding training 

and experience requirements (Petition 

for Rulemaking (PRM 35–20, Ritenour 

Petition); (4) dose limits to members of 

the public (per year versus per 

treatment) from patients who have been 

administered radioiodine; (5) a 

subcommittee report on medical-related 

events; and (6) a variety of other topics 

related to 10 Code of Federal 

Regulations (CFR) Part 35 rulemaking. 

Once finalized, a copy of the agenda 

will be available at http://www.nrc.gov/ 

reading-rm/doc-collections/acmui/ 

agenda or by e-mailing Ms. Sophie 

Holiday at the contact information 

below. The primary purpose of the 

meeting is for the NRC to seek 

comments and insights from the 

members of the ACMUI. However, NRC 

will also welcome public participation 

and comments on the rulemaking topics 

listed above. The meeting’s purpose is 

to discuss current rulemaking activities 

related to 10 CFR Part 35, Medical Use 

of Byproduct Material. 

DATES: Date and Time for Closed 

Session: April 11, 2011, from 8 a.m. to 

9 a.m. This session will be closed so 

that ACMUI members can enroll for and 

activate new badges and complete self 

evaluations. 

Date and Time for Open Sessions: 

April 11, 2011, from 9 a.m. to 5 p.m. 

and April 12, 2011, from 8 a.m. to 4:30 

p.m. 

ADDRESSES: Public Meeting: U.S. 

Nuclear Regulatory Commission, Two 

White Flint North Building, Room T2– 

B3, 11545 Rockville Pike, Rockville, 

Maryland 20852. 

FOR FURTHER INFORMATION CONTACT: 

Sophie J. Holiday, e-mail: 

sophie.holiday@nrc.gov, telephone: 

(301) 415–7865. 

SUPPLEMENTARY INFORMATION: 

Public Participation: Any member of 

the public who wishes to participate in 

the meeting in person or via phone 

should contact Ms. Holiday using the 

information in the FOR FURTHER

INFORMATION section above. The meeting 

will also be Webcast live at: http:// 

www.nrc.gov/public-involve/publicmeetings/Webcast-live.html. 

Conduct of the Meeting 

Leon S. Malmud, M.D., will chair the 

meeting. Dr. Malmud will conduct the 

meeting in a manner that will facilitate 

the orderly conduct of business. The 

following procedures apply to public 

participation in the meeting: 

1. Persons who wish to provide a 

written statement should submit an 

electronic copy to Ms. Holiday at the 

contact information listed above. All 

submittals must be received by April 5, 

2011, and must pertain to the topic on 

the agenda for the meeting. 

2. Questions and comments from 

members of the public will be permitted 

during the meeting, at the discretion of 

the Chairman. 

3. The draft transcript will be 

available on ACMUI’s Web site (http:// 

www.nrc.gov/reading-rm/doccollections/acmui/tr/) on or about May 

12, 2011. A meeting summary will be 

available on ACMUI’s Web site (http:// 

www.nrc.gov/reading-rm/doccollections/acmui/meeting-summaries/) 

on or about June 26, 2011. 

4. Persons who require special 

services, such as those for the hearing 

impaired, should notify Ms. Holiday of 

their planned attendance. 

This meeting will be held in 

accordance with the Atomic Energy Act 

of 1954, as amended (primarily Section 

161a); the Federal Advisory Committee 

Act (5 U.S.C. App); and the 

Commission’s regulations in 10 CFR 

part 7. 

Dated: March 23, 2011. 

Andrew L. Bates, 

Advisory Committee Management Officer. 

[FR Doc. 2011–7322 Filed 3–28–11; 8:45 am] 

BILLING CODE 7590–01–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2011–0260; Directorate 

Identifier 2010–NM–242–AD] 

RIN 2120–AA64 

Airworthiness Directives; Bombardier, 

Inc. Model DHC–8–400 Series 

Airplanes 

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) 

originated 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: 

Several reports have been received on the 

elevator power control units (PCUs) where 

the shaft (tailstock) swaged bearing liners had 

shown a higher than normal rate of wear. 

Investigation revealed that the excessive wear 

was due to the paint contamination between 

the bearing roller and bearing liner. The 

bearing paint contamination is known to be 

abrasive and could seize the bearing. 

This condition, if not corrected, could lead 

to excessive airframe vibrations and 

difficulties in aircraft pitch control. 

* * * * * 

The unsafe condition is loss of 

controllability. The proposed AD would 

require actions that are intended to 

address the unsafe condition described 

in the MCAI. 

DATES: We must receive comments on 

this proposed AD by May 13, 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. 


wwoods2 on DSK1DXX6B1PROD with PROPOSALS_PART 1
Federal Register / Vol. 76, No. 60 / Tuesday, March 29, 2011 / Proposed Rules 17363 

• 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: U.S. Department of 

Transportation, Docket Operations, 

M–30, West Building Ground Floor, 

Room W12–40, 1200 New Jersey 

Avenue, SE., Washington, DC, between 

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

Friday, except Federal holidays. 

For service information identified in 

this proposed AD, contact Bombardier, 

Inc., Q–Series Technical Help Desk, 123 

Garratt Boulevard, Toronto, Ontario 

M3K 1Y5, Canada; telephone 416–375– 

4000; fax 416–375–4539; e-mail 

thd.qseries@aero.bombardier.com; 

Internet http://www.bombardier.com. 

You may review copies of the 

referenced service information at the 

FAA, Transport Airplane Directorate, 

1601 Lind Avenue, SW., Renton, 

Washington. For information on the 

availability of this material at the FAA, 

call 425–227–1221. 

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 in 

the ADDRESSES section. Comments will 

be available in the AD docket shortly 

after receipt. 

FOR FURTHER INFORMATION CONTACT: 

Cesar Gomez, Aerospace Engineer, 

Airframe and Mechanical Systems 

Branch, ANE–171, FAA, New York 

Aircraft Certification Office (ACO), 1600 

Stewart Avenue, Suite 410, Westbury, 

New York 11590; telephone (516) 228– 

7318; fax (516) 794–5531. 

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–2011–0260; Directorate Identifier 

2010–NM–242–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 we receive 

about this proposed AD. 

Discussion 

Transport Canada Civil Aviation, 

which is the aviation authority for 

Canada, has issued Canadian 

Airworthiness Directive CF–2010–28, 

dated August 20, 2010 (referred to after 

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

condition for the specified products. 

The MCAI states: 

Several reports have been received on the 

elevator power control units (PCUs) where 

the shaft (tailstock) swaged bearing liners had 

shown a higher than normal rate of wear. 

Investigation revealed that the excessive wear 

was due to the paint contamination between 

the bearing roller and bearing liner. The 

bearing paint contamination is known to be 

abrasive and could seize the bearing. 

This condition, if not corrected, could lead 

to excessive airframe vibrations and 

difficulties in aircraft pitch control. 

This directive mandates a free-play check 

of the shaft swaged bearing installed in the 

elevator PCU tailstock end and replacement 

of the shaft swaged bearings if excessive freeplay is found. 

The unsafe condition is loss of 

controllability. You may obtain further 

information by examining the MCAI in 

the AD docket. 

Relevant Service Information 

Bombardier has issued Service 

Bulletin 84–27–52, dated May 25, 2010. 

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 another 

country, and is approved for operation 

in the United States. Pursuant to our 

bilateral agreement with the State of 

Design Authority, we have been notified 

of the unsafe condition described in the 

MCAI and service information 

referenced above. We are proposing this 

AD because we evaluated all pertinent 

information and determined an unsafe 

condition exists and is likely to exist or 

develop on other products of the same 

type design. 

Differences Between This AD and the 

MCAI or Service Information 

We have reviewed the MCAI and 

related service information and, in 

general, agree with their substance. But 

we might have found it necessary to use 

different words from those in the MCAI 

to ensure the AD is clear for U.S. 

operators and is enforceable. In making 

these changes, we do not intend to differ 

substantively from the information 

provided in the MCAI and related 

service information. 

We might also have proposed 

different actions in this AD from those 

in the MCAI in order to follow FAA 

policies. Any such differences are 

highlighted in a Note within the 

proposed AD. 

Costs of Compliance 

Based on the service information, we 

estimate that this proposed AD would 

affect about 66 products of U.S. registry. 

We also estimate that it would take 

about 2 work-hours per product to 

comply with the basic requirements of 

this proposed AD. The average labor 

rate is $85 per work-hour. Based on 

these figures, we estimate the cost of the 

proposed AD on U.S. operators to be 

$11,220, or $170 per product. 

In addition, we estimate that any 

necessary follow-on actions would take 

about 3 work-hours and require parts 

costing $33, for a cost of $288 per 

product. We have no way of 

determining the number of products 

that may need these actions. 

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 


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17364 Federal Register / Vol. 76, No. 60 / Tuesday, March 29, 2011 / Proposed Rules 

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), 

(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. 

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 AD: 

Bombardier, Inc.: Docket No. FAA–2011– 

0260; Directorate Identifier 2010–NM– 

242–AD. 

Comments Due Date 

(a) We must receive comments by May 13, 

2011. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to Bombardier, Inc. 

Model DHC–8–400, –401, and –402 airplanes 

having serial numbers (S/Ns) 4001 through 

4304 inclusive; certificated in any category. 

Subject 

(d) Air Transport Association (ATA) of 

America Code 27: Flight controls. 

Reason 

(e) The mandatory continuing 

airworthiness information (MCAI) states: 

Several reports have been received on the 

elevator power control units (PCUs) where 

the shaft (tailstock) swaged bearing liners had 

shown a higher than normal rate of wear. 

Investigation revealed that the excessive wear 

was due to the paint contamination between 

the bearing roller and bearing liner. The 

bearing paint contamination is known to be 

abrasive and could seize the bearing. 

This condition, if not corrected, could lead 

to excessive airframe vibrations and 

difficulties in aircraft pitch control. 

* * * * * 

The unsafe condition is loss of 

controllability. 

Compliance 

(f) You are responsible for having the 

actions required by this AD performed within 

the compliance times specified, unless the 

actions have already been done. 

Free-Play Check and Corrective Actions 

(g) At the applicable time specified in 

paragraph (g)(1) or (g)(2) of this AD: Perform 

a free-play check for any shaft swaged 

bearing having part number (P/N) MS14103– 

7 that is installed in the tailstock end of each 

elevator PCU (three PCUs per elevator 

surface), having P/Ns 390600–1007 and 

390600–1009, in accordance with paragraph 

3.B., Part A, of Bombardier Service Bulletin 

84–27–52, dated May 25, 2010. 

(1) For airplanes that have accumulated 

8,000 or more total flight hours as of the 

effective date of this AD: Within 2,000 flight 

hours after the effective date of this AD. 

(2) For airplanes that have accumulated 

less than 8,000 total flight hours as of the 

effective date of this AD: Within 6,000 flight 

hours after the effective date of this AD or 

before the accumulation of 10,000 total flight 

hours, whichever occurs first. 

(h) If, during the check required by 

paragraph (g) of this AD, the bearing free-play 

is within the limits specified in Bombardier 

Service Bulletin 84–27–52, dated May 25, 

2010, no further action is required by this 

AD. 

(i) If, during the check required by 

paragraph (g) of this AD, the bearing free-play 

exceeds the limits specified in Bombardier 

Service Bulletin 84–27–52, dated May 25, 

2010: Before further flight, replace the 

elevator PCU with a serviceable one, in 

accordance with paragraph 3.B., Part B, of 

Bombardier Service Bulletin 84–27–52, dated 

May 25, 2010. 

FAA AD Differences 

Note 1: This AD differs from the MCAI 

and/or service information as follows: No 

differences. 

Other FAA AD Provisions 

(j) The following provisions also apply to 

this AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, New York ACO, 

ANE–170, FAA, has the authority to approve 

AMOCs for this AD, if requested using the 

procedures found in 14 CFR 39.19. Send 

information to ATTN: Program Manager, 

Continuing Operational Safety, FAA, New 

York ACO, 1600 Stewart Avenue, Suite 410, 

Westbury, New York 11590; telephone 516– 

228–7300; fax 516–794–5531. Before using 

any approved AMOC, notify your appropriate 

principal inspector, or lacking a principal 

inspector, the manager of the local flight 

standards district office/certificate holding 

district office. The AMOC approval letter 

must specifically reference this AD. 

(2) Airworthy Product: For any requirement 

in this AD to obtain corrective actions from 

a manufacturer or other source, use these 

actions if they are FAA-approved. Corrective 

actions are considered FAA-approved if they 

are approved by the State of Design Authority 

(or their delegated agent). You are required 

to assure the product is airworthy before it 

is returned to service. 

Related Information 

(k) Refer to MCAI Canadian Airworthiness 

Directive CF–2010–28, dated August 20, 

2010; and Bombardier Service Bulletin 84– 

27–52, dated May 25, 2010; for related 

information. 

Issued in Renton, Washington, on March 

21, 2011. 

Kalene C. Yanamura, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2011–7289 Filed 3–28–11; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2011–0259; Directorate 

Identifier 2010–NM–196–AD] 

RIN 2120–AA64 

Airworthiness Directives; DassaultAviation Model FALCON 7X Airplanes 

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 that would 

supersede an existing AD. This 

proposed AD results from mandatory 

continuing airworthiness information 

(MCAI) originated 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: 

Several occurrences of untimely radioaltimeter lock-up have been reported, where 

the failed radio-altimeter indicated a negative 

distance to the ground despite the aircraft 

was flying at medium or high altitude. 

A locked radio-altimeter #1 leads to 

untimely inhibition of warnings that could be 

displayed along with certain abnormal 

conditions while the avionic system switches 

into landing mode during altitude cruise. 

* * * * * 

[Untimely radio altimeter lock-up] may 

cause the crew to be unaware of possible 

system failures that could require urgent 

crew’s actions. 

* * * * * 


wwoods2 on DSK1DXX6B1PROD with PROPOSALS_PART 1