19854 Federal Register / Vol. 63, No. 77 /Wednesday, April 22, 1998 / Proposed Rules

modification to the fuel system wiring

would require 40 work hours to

accomplish, at an average labor rate of

$60 per work hour. The cost of required

parts is estimated to be $10,000 per

airplane. Based on these figures, the cost

impact of this proposed modification on

U.S. operators is estimated to be

$14,136,000, or $12,400 per airplane.

In addition, based on similar

modifications accomplished previously

on other airplane models, the FAA can

reasonably estimate that the proposed

modification to the fuel vent system

would require 48 work hours to

accomplish, at an average labor rate of

$60 per work hour. The cost of required

parts is estimated to be $20,400 per

airplane. Based on these figures, the cost

impact of this proposed modification on

U.S. operators is estimated to be

$26,539,200, or $23,280 per airplane.

As indicated earlier in this preamble,

the FAA specifically invites the

submission of comments and other data

regarding the economic aspect of this

proposal.

The cost impact figures discussed

above are based on assumptions that no

operator has yet accomplished any of

the proposed requirements of this AD

action, and that no operator would

accomplish those actions in the future if

this AD were not adopted.

Regulatory Impact

The regulations proposed herein

would not have substantial direct effects

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. Therefore,

in accordance with Executive Order

12612, it is determined that this

proposal would not have sufficient

federalism implications to warrant the

preparation of a Federalism Assessment.

For the reasons discussed above, I

certify that 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); and (3) if

promulgated, 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. A copy of the draft

regulatory evaluation prepared for this

action is contained in the Rules Docket.

A copy of it may be obtained by

contacting the Rules Docket at the

location provided under the caption

ADDRESSES.

List of Subjects in 14 CFR Part 39

Air transportation, Aircraft, Aviation

safety, Safety.

The Proposed Amendment

Accordingly, pursuant to the

authority delegated to me by the

Administrator, the Federal Aviation

Administration proposes to amend part

39 of the Federal Aviation Regulations

(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. Section 39.13 is amended by

adding the following new airworthiness

directive:

Boeing: Docket 98–NM–50–AD.

Applicability: All Model 737–100, –200,

–300, –400, and –500 series airplanes,

certificated in any category.

Note 1: This AD applies to each airplane

identified in the preceding applicability

provision, regardless of whether it has been

modified, altered, or repaired in the area

subject to the requirements of this AD. For

airplanes that have been modified, altered, or

repaired so that the performance of the

requirements of this AD is affected, the

owner/operator must request approval for an

alternative method of compliance in

accordance with paragraph (c) of this AD.

The request should include an assessment of

the effect of the modification, alteration, or

repair on the unsafe condition addressed by

this AD; and, if the unsafe condition has not

been eliminated, the request should include

specific proposed actions to address it.

Compliance: Required as indicated, unless

accomplished previously.

To prevent possible ignition of fuel vapors

in the fuel tanks, and/or external ignition of

the fuel vapor exiting the fuel vent system

and subsequent propagation of a flame front

into the fuel tanks, accomplish the following:

(a) Within 12 months after the effective

date of this AD, install components for the

suppression of electrical transients, and/or

install components to provide shielding and

separation to the fuel system wiring that is

routed to the fuel tanks from adjacent wiring,

in accordance with a method approved by

the Manager, Seattle Aircraft Certification

Office (ACO), FAA, Transport Airplane

Directorate.

(b) Within 12 months after the effective

date of this AD, install flame arrestors and

pressure relief valves in the fuel vent system,

in accordance with a method approved by

the Manager, Seattle ACO.

(c) An alternative method of compliance or

adjustment of the compliance time that

provides an acceptable level of safety may be

used if approved by the Manager, Seattle

ACO. Operators shall submit their requests

through an appropriate FAA Principal

Maintenance Inspector, who may add

comments and then send it to the Manager,

Seattle ACO.

Note 2: Information concerning the

existence of approved alternative methods of

compliance with this AD, if any, may be

obtained from the Seattle ACO.

(d) Special flight permits may be issued in

accordance with sections 21.197 and 21.199

of the Federal Aviation Regulations (14 CFR

21.197 and 21.199) to operate the airplane to

a location where the requirements of this AD

can be accomplished.

Issued in Renton, Washington, on April 14,

1998.

John J. Hickey,

Acting Manager, Transport Airplane

Directorate, Aircraft Certification Service.

[FR Doc. 98–10590 Filed 4–21–98; 8:45 am]

BILLING CODE 4910–13–U

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. 97–CE–147–AD]

RIN 2120–AA64

Airworthiness Directives; Industrie

Aeronautiche e Meccaniche Model

Piaggio P–180 Airplanes

AGENCY: Federal Aviation

Administration, DOT.

ACTION: Proposed rule; withdrawal.

SUMMARY: This document withdraws a

notice of proposed rulemaking (NPRM)

that would have applied to certain

Industrie Aeronautiche e Meccaniche

(I.A.M.) Model Piaggio P–180 airplanes.

The NPRM, if followed with a final rule,

would have required installing a shield

on the front section of the engine

cradles. Airworthiness Directive (AD)

96–09–09 currently requires the same

action as is proposed in this NPRM. The

Federal Aviation Administration (FAA)

inadvertently prepared and issued this

NPRM. With this in mind, the FAA has

determined that the proposed rule

should be withdrawn. This withdrawal

does not prevent the FAA from taking

future rulemaking on this subject.

FOR FURTHER INFORMATION CONTACT: Mr.

David O. Keenan, Project Officer, FAA,

Small Airplane Directorate, Aircraft

Certification Service, 1201 Walnut, suite

900, Kansas City, Missouri 64106;

telephone: (816) 426–6934; facsimile:

(816) 426–2169.

SUPPLEMENTARY INFORMATION:

Events Leading to This Action

A proposal to amend part 39 of the

Federal Aviation Regulations (14 CFR

part 39) to include an AD that would

apply to certain I.A.M. Model Piaggio P–
Federal Register / Vol. 63, No. 77 /Wednesday, April 22, 1998 / Proposed Rules 19855

180 airplanes of the same type design

that are registered in the United States

was published in the Federal Register

as a notice of proposed rulemaking

(NPRM) on February 2, 1998 (63 FR

5320). The NPRM proposed to require

installing a shield on the front section

of the engine cradles.

Interested persons have been afforded

an opportunity to participate in the

making of this amendment. No

comments were received on the

proposed rule or the FAA’s

determination of the cost to the public.

AD 96–09–09, Amendment 39–9585

(61 FR 19808, May 3, 1996), currently

requires the same action as is proposed

in this NPRM. The FAA inadvertently

prepared and issued this NPRM. Since

the NPRM, if followed with a final rule,

would duplicate actions already

required in an existing AD, the FAA has

decided that the NPRM should be

withdrawn.

Withdrawal of this NPRM constitutes

only such action, and does not preclude

the agency from issuing future

rulemaking on this issue, nor does it

commit the agency to any course of

action in the future.

Since this action only withdraws an

NPRM, it is neither a proposed nor a

final rule and therefore, is not covered

under Executive Order 12866, the

Regulatory Flexibility Act, or DOT

Regulatory Policies and Procedures (44

FR 11034, February 26, 1979).

List of Subjects in 14 CFR Part 39

Air transportation, Aircraft, Aviation

Safety, Safety.

The Withdrawal

Accordingly, the notice of proposed

rulemaking, Docket No. 97–CE–147–AD,

published in the Federal Register on

February 2, 1998 (63 FR 5320), is

withdrawn.

Issued in Kansas City, Missouri, on April

14, 1998.

Michael Gallagher,

Manager, Small Airplane Directorate, Aircraft

Certfication Service.

[FR Doc. 98–10598 Filed 4–21–98; 8:45 am]

BILLING CODE 4910–13–U

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 71

[Airspace Docket No. 98–AGL–24]

Proposed Modification of Class E

Airspace; Youngstown Elser Metro

Airport, OH

AGENCY: Federal Aviation

Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking.

SUMMARY: This notice proposes to

modify Class E airspace at Youngstown

Elser Metro Airport, OH. A Global

Positioning System (GPS) Standard

Instrument Approach Procedure (SIAP)

to Runway (Rwy) 28, has been

developed for Youngstown Elser Metro

Airport. Controlled airspace extending

upward from 700 to 1200 feet above

ground level (AGL) is needed to contain

aircraft executing the approach. This

action proposes to add an extension to

the east for the existing controlled

airspace for Youngstown Elser Metro

Airport.

DATES: Comments must be received on

or before June 8, 1998.

ADDRESSES: Send comments on the

proposal in triplicate to: Federal

Aviation Administration, Office of the

Assistant Chief Counsel, AGL–7, Rules

Docket No. 98–AGL–24, 2300 East

Devon Avenue, Des Plaines, Illinois

60018.

The official docket may be examined

in the Office of the Assistant Chief

Counsel, Federal Aviation

Administration, 2300 East Devon

Avenue, Des Plaines, Illinois. An

informal docket may also be examined

during normal business hours at the Air

Traffic Division, Airspace Branch,

Federal Aviation Administration, 2300

East Devon Avenue, Des Plaines,

Illinois.

FOR FURTHER INFORMATION CONTACT:

Michelle M. Behm, Air Traffic Division,

Airspace Branch, AGL–520, Federal

Aviation Administration, 2300 East

Devon Avenue, Des Plaines, Illinois

60018, telephone (847) 294–7568.

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. 98–

AGL–24.’’ 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 in the Rules Docket, FAA,

Great Lakes Region, Office of the

Assistant Chief Counsel, 2300 East

Devon Avenue, Des Plaines, Illinois,

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, Office of

Public Affairs, Attention: Public Inquiry

Center, APA–230, 800 Independence

Avenue, S.W., Washington, DC 20591,

or by calling (202) 267–3484.

Communications 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 14 CFR part 71 to modify

Class E airspace at Youngstown Elser

Metro Airport, OH, to accommodate

aircraft executing the proposed GPS

Rwy 28 SIAP, at the airport by adding

an eastern extension to the existing

controlled airspace at the airport.

Controlled airspace extending upward

from 700 to 1200 feet AGL is needed to

contain aircraft executing the approach.

The area would be depicted on

appropriate aeronautical charts. 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