Proposed Amendment to Class E Airspace; Twin Falls, ID

DEPARTMENT OF TRANSPORTATION

14 CFR Part 71

[Airspace Docket No. 93-ANM-45]

Proposed Amendment to Class E Airspace; Twin Falls, ID

agency: Federal Aviation Administration (FAA), DOT.

action: Notice of proposed rulemaking.

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summary: This proposed rule would amend the Twin Falls, Idaho, Class E

airspace to accommodate arrival/departure aircraft transitioning

between the en route and terminal area southwest of Twin Falls Airport.

Airspace reclassification, in effect as of September 16, 1993, has

discontinued the use of the term ``transition area,'' replacing it with

the designation ``Class E airspace.'' The area would be depicted on

aeronautical charts to provide reference for pilots.

dates: Comments must be received on or before March 25, 1994.

addresses: Send comments on the proposal in triplicate to: Manager,

System Management Branch, ANM-530, Federal Aviation Administration,

Docket No. 93-ANM-45, 1601 Lind Avenue SW., Renton, Washington 98055-

4056.

The official docket may be examined at the same address.

An informal docket may also be examined during normal business

hours at the address listed above.

for further information contact: Robert L. Brown, ANM-535, Federal

Aviation Administration, Docket No. 93-ANM-45, 1601 Lind Avenue SW.,

Renton, Washington 98055-4056, telephone (206) 227-2530.

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 the airspace docket number 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 Airspace Docket No. 93-

ANM-45.'' 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 notice may be changed

in light of comments received. All comments submitted will be available

for examination at the address listed above 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 NPRM's

Any person may obtain a copy of this Notice of Proposed Rulemaking

(NPRM) by submitting a request to the Federal Aviation Administration,

System Management Branch, ANM-530, 1601 Lind Avenue SW., Renton,

Washington 98055-4056. Comunications must identify the notice number of

this NPRM. Persons interested in being placed on a mailing list for

future NPRM's should also request a copy of Advisory Circular No. 11-

2A, which describes the application procedure.

The Proposal

The FAA is considering an amendment to part 71 of the Federal

Aviation Regulations (14 CFR part 71) to amend Class E airspace at Twin

Falls, Idaho, to accommodate arrival/departure aircraft transitioning

between the en route and terminal environment southwest of the Twin

Falls Airport. The area would be depicted on aeronautical charts for

pilot reference. Airspace reclassification, in effect of September 16,

1993, has discontinued the use of the term ``transition area,'' and

airspace extending upward from 700 feet or more above the surface of

the earth is now Class E airspace. The coordinates for this airspace

docket are based on North American Datum 83. Class E airspace

designations for airspace areas extending upward from 700 feet or more

above the surface of the earth are published in Paragraph 6005 of FAA

Order 7400.9A dated June 17, 1993, and effective September 16, 1993,

which is incorporated by reference in 14 CFR 71.1 as of September 16,

1993 (58 FR 36298; July 6, 1993). The Class E designation listed in

this document would 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 affect air traffic procedures and air navigation, it is certified

that this rule, when promulgated, will not have a significant economic

impact on a substantial number of small entities under the criteria of

the Regulatory Flexibility Act.

List 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--[AMENDED]

1. The authority citation for 14 CFR part 71 continues to read as

follows:

Authority: 49 U.S.C. app. 1348(a), 1354(a), 1510; E.O. 10854, 24

FR 9565, 3 CFR, 1959-1963 Comp., p. 389; 49 U.S.C. 106(g); 14 CFR

11.69.

Sec. 71.1 [Amended]

2. The incorporation by reference in 14 CFR 71.1 of the Federal

Aviation Administration Order 7400.9A, Airspace Designations and

Reporting Points, dated June 17, 1993, and effective September 16,

1993, is amended as follows:

Paragraph 6005 Class E airspace areas extending upward from 700

feet or more above the surface of the earth.

* * * * *

ANM ID E5 Twin Falls, ID [Revised]

Twin Falls-Sun Valley Regional, Joslin Field, ID

(lat. 42 deg.28'55''N, long. 114 deg.29'16''W)

Twin Falls VORTAC

(lat. 42 deg.28'47''N, long. 114 deg.29'22''W)

That airspace extending upward from 700 feet above the surface

within 8.3 miles north and 4.3 miles south of the Twin Falls VORTAC

086 deg. and 281 deg. radials extending from the VORTAC to 26.1

miles east and 16.1 miles west, and within 4.3 miles each side of

the Twin Falls 156 deg. radial extending from the VORTAC to 8.3

miles southeast of the VORTAC; that airspace extending upward from

1,200 feet above the surface bounded on the northeast by a line

beginning at the intersection of long. 114 deg.01'03''W and V-500,

extending south along long. 114 deg.01'03''W to V-269, southwest

along V-269 to the 18.3-mile radius of the Twin Falls VORTAC, thence

clockwise via the 18.3-mile radius to V-484, northwest along V-484

to the 14.4-mile radius of the Twin Falls VORTAC, thence clockwise

along the 14.4-mile radius to V-293, southwest along V-293 to the

intersection of V-293 and long. 115 deg.00'00''W, thence north along

long. 115 deg.00'00''W to a point 7.9 miles southwest of V-253,

thence northwest and parallel to V-253 for 25.9 miles, thence to the

intersection of V-4, V-253, and V-330, east along V-330 to V-293,

north along V-293 to V-500, then to the point of beginning;

excluding that airspace within Federal airways.

* * * * *

Issued in Seattle, Washington, on January 31, 1994.

Temple H. Johnson, Jr.,

Manager, Air Traffic Division, Northwest Mountain Region.

[FR Doc. 94-3741 Filed 2-17-94; 8:45 am]

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