40834 Federal Register / Vol. 77, No. 133 / Wednesday, July 11, 2012 / Proposed Rules 

The Boeing Company: Docket No. FAA– 

2012–0678; Directorate Identifier 2011– 

NM–285–AD. 

(a) Comments Due Date 

We must receive comments by August 27, 

2012. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to The Boeing Company 

Model 747–400 and –400F series airplanes; 

certificated in any category; as identified in 

Boeing Alert Service Bulletin 747–21A2523, 

Revision 1, dated October 3, 2011. 

(d) Subject 

Joint Aircraft System Component (JASC)/ 

Air Transport Association (ATA) of America 

Code 21, Air Conditioning. 

(e) Unsafe Condition 

This AD was prompted by multiple reports 

of integrated display unit (IDU) malfunctions 

and mode control panel (MCP) malfunctions. 

We are issuing this AD to prevent integrated 

display unit (IDU) malfunctions, which could 

affect the ability of the flight crew to read 

primary displays for airplane attitude, 

altitude, or airspeed, and consequently 

reduce the ability of the flight crew to 

maintain control of the airplane. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Software Update 

Within 12 months after the effective date 

of this AD: Install integrated display system 

software, in accordance with the 

Accomplishment Instructions of Boeing Alert 

Service Bulletin 747–21A2523, Revision 1, 

dated October 3, 2011. 

Note 1 to paragraph (g) of this AD: Boeing 

Alert Service Bulletin 747–21A2523, 

Revision 1, dated October 3, 2011, refers to 

Boeing Service Bulletin 747–31–2426, dated 

July 29, 2010 (for airplanes with Rolls-Royce 

engines); Boeing Service Bulletin 747–31– 

2427, dated July 29, 2010 (for airplanes with 

General Electric engines); and Boeing Service 

Bulletin 747–31–2428, dated July 29, 2010 

(for airplanes with Pratt & Whitney engines); 

as additional sources of guidance for the 

software installation specified by paragraph 

(g) of this AD. 

(h) Replacement of Duct Assembly and 

Wiring Changes 

Within 60 months after the effective date 

of this AD: Replace the duct assembly with 

a new duct assembly, do wiring changes, and 

route certain wire bundles, in accordance 

with the Accomplishment Instructions of 

Boeing Alert Service Bulletin 747–21A2523, 

Revision 1, dated October 3, 2011. 

(i) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, Seattle Aircraft 

Certification Office, 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 manager of the ACO, send it to the 

attention of the person identified in the 

Related Information section of this AD. 

Information may be emailed to: 9-ANMSeattle-ACO-AMOC-Requests@faa.gov. 

(2) 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. 

(j) Related Information 

(1) For more information about this AD, 

Ana Martinez Hueto, Aerospace Engineer, 

Cabin Safety and Environmental Systems 

Branch, ANM–150S, FAA, Seattle Aircraft 

Certification Office (ACO), 1601 Lind Avenue 

SW., Renton, WA 98057–3356; phone: 425– 

917–6592; fax: 425–917–6591; email: 

ana.m.hueto@faa.gov. 

(2) For service information identified in 

this AD, contact Boeing Commercial 

Airplanes, Attention: Data & Services 

Management, P.O. Box 3707, MC 2H–65, 

Seattle, Washington 98124–2207; telephone 

206–544–5000, extension 1; fax 206–766– 

5680; Internet https:// 

www.myboeingfleet.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. 

Issued in Renton, Washington, on June 29, 

2012. 

Kalene C. Yanamura, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2012–16962 Filed 7–10–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 71 

[Docket No. FAA–2011–1213; Airspace 

Docket No. 11–ANM–23] 

Proposed Amendment of Class E 

Airspace; Dillon, MT 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Supplemental notice of 

proposed rulemaking (SNPRM). 

SUMMARY: The FAA is issuing a SNPRM 

for the notice of proposed rulemaking 

(NPRM) published on March 15, 2012, 

in order to elicit comments addressing 

the proposed amendment to create Class 

E surface airspace and further expand 

the previous proposed amendment of 

Class E airspace extending upward from 

700 feet above the surface at Dillon 

Airport, Dillon, MT, to accommodate 

aircraft using new Area Navigation 

(RNAV) Global Positioning System 

(GPS) standard instrument approach 

procedures. The original NPRM only 

proposed an amendment of Class E 

airspace extending upward from 700 

feet above the surface. 

DATES: Comments must be received on 

or before August 27, 2012. 

ADDRESSES: Send comments on this 

proposal to the U.S. Department of 

Transportation, Docket Operations, M– 

30, West Building Ground Floor, Room 

W12–140, 1200 New Jersey Avenue SE., 

Washington, DC, 20590; telephone (202) 

366–9826. You must identify FAA 

Docket No. FAA–2011–1213; Airspace 

Docket No. 11–ANM–23, at the 

beginning of your comments. You may 

also submit comments through the 

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

FOR FURTHER INFORMATION CONTACT: 

Eldon Taylor, Federal Aviation 

Administration, Operations Support 

Group, Western Service Center, 1601 

Lind Avenue SW., Renton, WA 98057; 

telephone (425) 203–4537. 

SUPPLEMENTARY INFORMATION: 

History 

On March 15, 2012, the FAA 

published a NPRM to modify Class E 

airspace, extending upward from 700 

feet or more above the surface, at Dillon 

Airport, Dillon, MT (77 FR 15295). The 

comment period closed April 30, 2012. 

One comment was received. 

The commenter recommended 

establishing Class E surface airspace, 

and also expand the Class E airspace 

extending upward from 700 feet above 

the surface for aircraft safety. The FAA 

found merit in this comment, and, 

therefore, proposes the additional 

creation of Class E surface airspace, and 

modification of existing Class E airspace 

extending upward from 700 feet above 

the surface. The FAA seeks comments 

on this SNPRM. 

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 (FAA Docket No. FAA 

2011–1213 and Airspace Docket No. 11– 

ANM–23) and be submitted in triplicate 

to the Docket Management System (see 


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Federal Register / Vol. 77, No. 133 / Wednesday, July 11, 2012 / Proposed Rules 40835 

ADDRESSES section for address and 

phone number). You may also submit 

comments through the Internet at 

http://www.regulations.gov. 

Commenters wishing the FAA to 

acknowledge receipt of their comments 

on this action must submit with those 

comments a self-addressed stamped 

postcard on which the following 

statement is made: ‘‘Comments to FAA 

Docket No. FAA–2011–1213 and 

Airspace Docket No. 11–ANM–23’’. The 

postcard will be date/time stamped and 

returned to the commenter. 

All communications received on or 

before the specified closing date for 

comments will be considered before 

taking action on the proposed rule. The 

proposal contained in this action may 

be changed in light of comments 

received. All comments submitted will 

be available for examination in the 

public docket both before and after the 

closing date for comments. 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 through the 

Internet at 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/. 

You may review the public docket 

containing the proposal, any comments 

received, and any final disposition in 

person in the Dockets Office (see the 

ADDRESSES section for the 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 Northwest 

Mountain Regional Office of the Federal 

Aviation Administration, Air Traffic 

Organization, Western Service Center, 

Operations Support Group, 1601 Lind 

Avenue SW., Renton, WA 98057. 

Persons interested in being placed on 

a mailing list for future NPRMs should 

contact the FAA’s Office of Rulemaking, 

(202) 267–9677, for a copy of Advisory 

Circular No. 11–2A, Notice of Proposed 

Rulemaking Distribution System, which 

describes the application procedure. 

The Supplemental Proposal 

The FAA is proposing an amendment 

to Title 14 Code of Federal Regulations 

(14 CFR) part 71 by creating Class E 

surface airspace and modifying existing 

Class E airspace extending upward from 

700 feet above the surface at Dillon 

Airport, Dillon MT, to accommodate 

aircraft using new RNAV (GPS) standard 

instrument approach procedures at 

Dillon Airport. This action would 

enhance the safety and management of 

IFR operations at the airport. The 

geographic coordinates of the airport 

also would be adjusted. 

Class E airspace designations are 

published in paragraph 6002 and 6005, 

respectively, of FAA Order 7400.9V, 

dated August 9, 2011, and effective 

September 15, 2011, which is 

incorporated by reference in 14 CFR 

71.1. The Class E airspace designation 

listed in this document will be 

published subsequently in this 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. 

Therefore, this proposed regulation; (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 U.S. Code. Subtitle 1, 

Section 106, describes the authority for 

the FAA Administrator. Subtitle VII, 

Aviation Programs, describes in more 

detail the scope of the agency’s 

authority. This 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 the airspace necessary to ensure the 

safety of aircraft and the efficient use of 

airspace. This regulation is within the 

scope of that authority as it would 

propose controlled airspace at Dillon 

Airport, Dillon, MT. 

This proposal will be subject to an 

environmental analysis in accordance 

with FAA Order 1050.1E, 

‘‘Environmental Impacts: Policies and 

Procedures’’ prior to any FAA final 

regulatory action. 

List of Subjects in 14 CFR Part 71 

Airspace, Incorporation by reference, 

Navigation (air). 

The Proposed Amendment 

Accordingly, pursuant to the 

authority delegated to me, 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 14 CFR 

part 71 continues 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 the Federal Aviation 

Administration Order 7400.9V, Airspace 

Designations and Reporting Points, 

dated August 9, 2011, and effective 

September 15, 2011 is amended as 

follows: 

Paragraph 6002 Class E airspace designated 

as surface areas. 

* * * * * 

ANM MT E2 Dillon, MT [New] 

Dillon Airport, MT 

(Lat. 45°15′19′′ N., long. 112°33′09′′ W.) 

Within a 6.1-mile radius of Dillon 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. 

* * * * * 

ANM MT E5 Dillon, MT [Modified] 

Dillon Airport, MT 

(Lat. 45°15′19′′ N., long. 112°33′09′′ W.) 

That airspace extending upward from 700 

feet above the surface within a 9.2-mile 

radius of Dillon Airport; that airspace 

extending upward from 1,200 feet above the 

surface within a 45-mile radius of Dillon 

Airport. 

Issued in Seattle, Washington, on July 2, 

2012. 

John Warner, 

Manager, Operations Support Group, Western 

Service Center. 

[FR Doc. 2012–16865 Filed 7–10–12; 8:45 am] 

BILLING CODE 4910–13–P 


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