### 55298 Federal Register / Vol. 76, No. 173 / Wednesday, September 7, 2011 / Proposed Rules

Applicability

(c) This AD applies to Bombardier, Inc. Model DHC–8–301, –311, and –315 airplanes, certificated in any category; having serial numbers 100 through 530 inclusive.
Subject

(d) Air Transport Association (ATA) of America Code 57: Wings.

Reason

(e) The mandatory continuing airworthiness information (MCAI) states:

Several cases of aileron terminal quadrant support brackets that were manufactured using sheet metal have been found cracked on DHC–8 Series 300 aircraft. Investigation revealed that the failure of the support bracket was due to fatigue. Failure of the aileron terminal quadrant support bracket could result in an adverse reduction of aircraft roll control.
* * * * * These conditions could result in loss of control of the airplane.
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.
Restatement of Requirements of AD 2010– 26–13, With Reduced Compliance Time and No New Service Information

Actions

(g) For airplanes with an aileron terminal quadrant support bracket having part number (P/N) 85711569: At the applicable times specified in paragraph (g)(1) or (g)(2) of this AD, install a new aileron input quadrant support bracket by incorporating MODSUM 8Q101250, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 8–57–43, Revision B, dated October 7, 2009.

(1) For airplanes that have accumulated 30,000 total flight hours or more as of February 1, 2011 (the effective date of AD 2010–26–13): Within 3,000 flight hours after February 1, 2011.

(2) For airplanes that have accumulated less than 30,000 total flight hours as of February 1, 2011: At the earlier of the times of paragraphs (g)(2)(i) and (g)(2)(ii).

(i) Before the accumulation of 33,000 total flight cycles or within 6,000 flight hours after February 1, 2011, whichever occurs first.

(ii) Before the accumulation of 33,000 total flight hours or within 6,000 flight hours after the effective date of this AD, whichever occurs first.
Credit for Actions Accomplished in Accordance With Previous Service Information

(h) Doing the installation by incorporating MODSUM 8Q101250 is also acceptable for compliance with the requirements of paragraph (g) of this AD if done before February 1, 2011, in accordance with Bombardier Service Bulletin 8–57–43, dated August 9, 2002; or Bombardier Service Bulletin 8–57–43, Revision A, dated January 17, 2003. FAA AD Differences

Note 1: This AD differs from the MCAI and/or service information as follows: No differences.

Other FAA AD Provisions

(i) The following provisions also apply to this AD:

(1) Alternative Methods of Compliance (AMOCs): The Manager, New York Aircraft Certification Office (ACO), ANE–170, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the New York ACO, send it 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

(j) Refer to MCAI Canadian Airworthiness Directive CF–2009–45, dated December 11, 2009; and Bombardier Service Bulletin 8–57– 43, Revision B, dated October 7, 2009; for related information.

Issued in Renton, Washington, on August 29, 2011. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service.
[FR Doc. 2011–22710 Filed 9–6–11; 8:45 am]

**BILLING CODE 4910–13–P**

**DEPARTMENT OF TRANSPORTATION**

**Federal Aviation Administration**

**14 CFR Part 71**

**[Docket No. FAA–2011–0578; Airspace Docket No. 11–ASO–24]** 

**Proposed Establishment of Class D and E Airspace and Amendment of**  **Class E; Brooksville, FL**

**AGENCY :**  Federal Aviation Administration (FAA), DOT.

**ACTION :**  Notice of proposed rulemaking (NPRM).

**SUMMARY :**  This action proposes to establish Class D and E airspace and amend existing Class E airspace at Brooksville, FL. to accommodate a new air traffic control tower at Hernando County Airport. Controlled airspace is necessary for the support of air traffic operations at Hernando County Airport and would enhance the safety and airspace management at the airport. This action also would make a minor adjustment to the geographic coordinates of the airport.

**DATES :**  0901 UTC. Comments must be received on or before October 24, 2011. The Director of the Federal Register approves this incorporation by reference action under title 1, Code of Federal Regulations, part 51, subject to the annual revision of FAA, Order 7400.9 and publication of conforming amendments.

**ADDRESSES :**  Send comments on this rule to: U. S. Department of Transportation, Docket Operations, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue, SE., Washington, DC 20590–0001; Telephone: 1–800– 647–5527; Fax: 202–493–2251. You must identify the Docket Number FAA– 2011–0578; Airspace Docket No. 11– ASO–24, at the beginning of your comments. You may also submit and review received comments through the Internet at http://www.regulations.gov.

You may review the public docket containing the rule, any comments received, and any final disposition in person in the Dockets Office (see

**ADDRESSES** section for address and phone number) between 9 a.m. and 5 p.m., Monday through Friday, except Federal Holidays.

An informal docket may also be examined during normal business hours at the office of the Eastern Service Center, Federal Aviation Administration, Room 350, 1701 Columbia Avenue, College Park, Georgia
30337.

**FOR FURTHER INFORMATION CONTACT :**  John Fornito, Airspace Specialist, Operations Support Group, Eastern Service Center, Air Traffic Organization, Federal Aviation Administration, P.O. Box 20636, Atlanta, Georgia 30320; telephone (404) 305–6364.

**SUPPLEMENTARY INFORMATION :** 
Comments Invited

Interested persons are invited to comment on this rule 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


### 55299 Federal Register / Vol. 76, No. 173 / Wednesday, September 7, 2011 / Proposed Rules

invited on the overall regulatory, aeronautical, economic, environmental, and energy-related aspects of the proposal. Communications should identify both docket numbers (FAA– 2011–0578; Airspace Docket No. 11– ASO–24) and be submitted in triplicate to the Docket Management System (see

**ADDRESSES** section for address and phone number). You may also submit comments through the Internet at http://www.regulations.gov. Those 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. The postcard will be date/time stamped and returned to the commenter. All communications received before the specified closing date for comments will be considered before taking action on the proposed rule. The proposal contained in this notice may be changed in light of the comments received. A report summarizing each substantive public contact with FAA personnel concerned with this rulemaking will be filed in the docket. Availability of NPRMs

An electronic copy of this document may be downloaded from and comments submitted through http:// www.regulations.gov. Recently published rulemaking documents can also be accessed through the FAA’s Web page at http://www.faa.gov/airports

_ airtraffic/air

_ traffic/publications/ airspace

_amendments/. Additionally, any person may obtain a copy of this notice by submitting a request to the Federal Aviation Administration (FAA), Office of Air Traffic Airspace Management, ATA–400, 800 Independence Avenue, SW., Washington, DC 20591, or by calling (202) 267–8783. Communications must identify both docket numbers for this notice. Persons interested in being placed on a mailing list for future NPRMs should contact the FAA’s Office of Rulemaking, (202) 267–9677, to request a copy of Advisory Circular No. 11–2A, Notice of Proposed Rulemaking Distribution System, which describes the application procedure. The Proposal

The FAA is considering an amendment to Title 14, Code of Federal Regulations (14 CFR) part 71 to establish Class D airspace, Class E surface area airspace and amend Class E airspace extending upward from 700 feet above the surface at Hernando County Airport, Brooksville, FL. Controlled airspace is necessary to support the operation of the new air traffic control tower, and new standard instrument approach procedures, and would enhance the safety and management of aircraft operations at the airport. Also, to be in concert with the FAAs aeronautical database, this action would adjust the geographic coordinates of the airport.

Class D and E airspace designations are published in Paragraphs 5000, 6002, and 6005 respectively, of FAA Order 7400.9U, dated August 18, 2010, and effective September 15, 2010, which is incorporated by reference in 14 CFR 71.1. The Class D and E airspace designations listed in this document will be published subsequently in the Order.

The FAA has determined that this proposed regulation only involves an established body of technical regulations for which frequent and routine amendments are necessary to keep them operationally current. It, therefore, (1) Is not a ‘‘significant regulatory action’’ under Executive Order 12866; (2) is not a ‘‘significant rule’’ under DOT Regulatory Policies and Procedures (44 FR 11034; February 26, 1979); and (3) does not warrant preparation of a Regulatory Evaluation as the anticipated impact is so minimal. Since this is a routine matter that will only affect air traffic procedures and air navigation, it is certified that this proposed rule, when promulgated, would not have a significant economic impact on a substantial number of small entities under the criteria of the Regulatory Flexibility Act.

The FAA’s authority to issue rules regarding aviation safety is found in Title 49 of the United States Code. 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.

This proposed rulemaking is promulgated under the authority described in subtitle VII, part, A, subpart I, section 40103. Under that section, the FAA is charged with prescribing regulations to assign the use of airspace necessary to ensure the safety of aircraft and the efficient use of airspace. This proposed regulation is within the scope of that authority as it proposes to establish and amend controlled airspace at Hernando County Airport, Brooksville, FL. Lists of Subjects in 14 CFR Part 71

Airspace, Incorporation by reference, Navigation (air). The Proposed Amendment

In consideration of the foregoing, the Federal Aviation Administration proposes to amend 14 CFR part 71 as follows:

**PART 71—DESIGNATION OF CLASS A, B, C, D, AND E AIRSPACE AREAS; AIR**  **TRAFFIC SERVICE ROUTES; AND REPORTING POINTS** 

1. The authority citation for part 71 will continue to read as follows:

Authority: 49 U.S.C. 106(g); 40103, 40113, 40120; E.O. 10854, 24 FR 9565, 3 CFR, 1959– 1963 Comp., p. 389.

**§ 71.1 [Amended]**

2. The incorporation by reference in 14 CFR 71.1 of Federal Aviation Administration Order 7400.9U, Airspace Designations and Reporting Points, dated August 18, 2010, and effective September 15, 2010, is amended as follows:
Paragraph 5000 Class D airspace.
* * * * *

ASO FL D Brooksville, FL [New] Hernando County Airport, FL

(Lat. 28 ° 28 ′ 25 ′′ N., long. 82 ° 27 ′ 20′′ W.) That airspace extending upward from the surface up to and including 1,500 feet MSL within a 5.1-mile radius of the Hernando County Airport. This Class D airspace area is effective during specific dates and times established in advance by a Notice to Airmen. The effective date and time will thereafter be continuously published in the Airport/Facility Directory.
Paragraph 6002 Class E airspace designated as surface areas.
* * * * *

ASO FL E2 Brooksville, FL [New] Hernando County Airport, FL

(Lat. 28 ° 28 ′ 25 ′′ N., long. 82 ° 27 ′ 20′′ W.) That airspace extending from the surface within a 5.1-mile radius of Hernando County Airport. This Class E airspace area is effective during specific dates and times established in advance by a Notice to Airmen. The effective date and time will thereafter be continuously published in the Airport/Facility Directory.
Paragraph 6005 Class E airspace areas extending upward from 700 feet or more above the surface of the earth.
* * * * *

ASO FL E5 Brooksville, FL [Amended] Hernando County Airport, FL

(Lat. 28 ° 28 ′ 25 ′′ N., long. 82 ° 27 ′ 20′′ W.) That airspace extending upward from 700 feet above the surface within a 7.6-mile radius of Hernando County Airport.

Issued in College Park, Georgia, on August 31, 2011. Barry A. Knight, Acting Manager, Operations Support Group, Eastern Service Center, Air Traffic Organization.
[FR Doc. 2011–22881 Filed 9–6–11; 8:45 am]

**BILLING CODE 4910–13–P**