10976 Federal Register / Vol. 66, No. 35 / Wednesday, February 21, 2001 / Proposed Rules

inspection to find cracking of the bulkhead

frame support under the hinge support

fittings of the horizontal stabilizer on the left

and right sides at BS 2598, per Figure 2 of

the Accomplishment Instructions of Boeing

Alert Service Bulletin 747–53A2449, dated

June 8, 2000. Repeat the inspection after that

at intervals not to exceed 3,000 flight cycles.

Repair

(b) If any cracking is found during any

inspection required by paragraph (a) of this

AD, before further flight, repair per a method

approved by the Manager, Seattle Aircraft

Certification Office (ACO), FAA; or per data

meeting the type certification basis of the

airplane approved by a Boeing Company

Designated Engineering Representative who

has been authorized by the Manager, Seattle

ACO, to make such findings. For a repair

method to be approved by the Manager,

Seattle ACO, as required by this paragraph,

the approval letter must specifically

reference this AD.

Alternative Methods of Compliance

(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.

Special Flight Permit

(d) Special flight permits may be issued in

accordance with §§ 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 February

13, 2001.

Vi L. Lipski,

Manager, Transport Airplane Directorate,

Aircraft Certification Service.

[FR Doc. 01–4219 Filed 2–20–01; 8:45 am]

BILLING CODE 4910–13–U

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. 2000–NM–179–AD]

RIN 2120–AA64

Airworthiness Directives; BAe

Systems (Operations) Limited Model

BAe 146 and Model Avro 146–RJ

Series Airplanes

AGENCY: Federal Aviation

Administration, DOT.

ACTION: Supplemental notice of

proposed rulemaking; reopening of

comment period.

SUMMARY: This document revises an

earlier proposed airworthiness directive

(AD), applicable to all BAe Systems

(Operations) Limited Model BAe 146

and Model Avro 146–RJ series airplanes,

that would have superseded an existing

AD that currently requires a one-time

inspection for ‘‘drill marks’’ and

corrosion on the underside of the wing

top skin, and corrective actions, if

necessary. The proposed AD would

have required a one-time inspection for

‘‘drill marks’’ and corrosion, and

corrective actions, if necessary, per new

procedures. For certain airplanes, the

proposed AD would have added a

requirement for one-time detailed visual

and borescopic inspections of the fuel

tank, pump, and stringers for paint

debris and inadequacy of the existing

protective treatment coating; and

corrective actions, if necessary. This

new action revises the proposed rule by

requiring repetitive inspections for

‘‘drill marks’’ and corrosion on the

underside of the wing top skin, and

corrective actions, if necessary, until all

corrective actions and protective

treatment actions are done. The actions

specified by this new proposed AD are

intended to prevent corrosion from

developing on the underside of the top

skin of the center wing, which could

result in reduced structural integrity of

the airplane.

DATES: Comments must be received by

March 19, 2001.

ADDRESSES: Submit comments in

triplicate to the Federal Aviation

Administration (FAA), Transport

Airplane Directorate, ANM–114,

Attention: Rules Docket No. 2000–NM–

179–AD, 1601 Lind Avenue, SW.,

Renton, Washington 98055–4056.

Comments may be inspected at this

location between 9:00 a.m. and 3:00

p.m., Monday through Friday, except

Federal holidays. Comments may be

submitted via fax to (425) 227–1232.

Comments may also be sent via the

Internet using the following address: 9-

anm-nprmcomment@faa.gov. Comments

sent via fax or the Internet must contain

‘‘Docket No. 2000–NM–179–AD’’ in the

subject line and need not be submitted

in triplicate. Comments sent via the

Internet as attached electronic files must

be formatted in Microsoft Word 97 for

Windows or ASCII text.

The service information referenced in

the proposed rule may be obtained from

British Aerospace Regional Aircraft

American Support, 13850 Mclearen

Road, Herndon, Virginia 20171. This

information may be examined at the

FAA, Transport Airplane Directorate,

1601 Lind Avenue, SW., Renton,

Washington.

FOR FURTHER INFORMATION CONTACT:

Norman B. Martenson, Manager,

International Branch, ANM–116, FAA,

Transport Airplane Directorate, 1601

Lind Avenue, SW., Renton, Washington

98055–4056; telephone (425) 227–2110;

fax (425) 227–1149.

SUPPLEMENTARY INFORMATION:

Comments Invited

Interested persons are invited to

participate in the making of the

proposed rule by submitting such

written data, views, or arguments as

they may desire. Communications shall

identify the Rules Docket number and

be submitted in triplicate to the address

specified above. All communications

received on or before the closing date

for comments, specified above, will be

considered before taking action on the

proposed rule. The proposals contained

in this action may be changed in light

of the comments received.

Submit comments using the following

format:

• Organize comments issue-by-issue.

For example, discuss a request to

change the compliance time and a

request to change the service bulletin

reference as two separate issues.

• For each issue, state what specific

change to the proposed AD is being

requested.

• Include justification (e.g., reasons or

data) for each request.

Comments are specifically invited on

the overall regulatory, economic,

environmental, and energy aspects of

the proposed rule. All comments

submitted will be available, both before

and after the closing date for comments,

in the Rules Docket for examination by

interested persons. A report

summarizing each FAA-public contact

concerned with the substance of this

proposal will be filed in the Rules

Docket.

Commenters wishing the FAA to

acknowledge receipt of their comments

submitted in response to this action

must submit a self-addressed, stamped

postcard on which the following

statement is made: ‘‘Comments to

Docket Number 2000–NM–179–AD.’’

The postcard will be date stamped and

returned to the commenter.

Availability of NPRMs

Any person may obtain a copy of this

NPRM by submitting a request to the

FAA, Transport Airplane Directorate,

ANM–114, Attention: Rules Docket No.

2000–NM–179–AD, 1601 Lind Avenue,

SW., Renton, Washington 98055–4056.

Federal Register / Vol. 66, No. 35 / Wednesday, February 21, 2001 / Proposed Rules 10977

Discussion

A proposal to amend part 39 of the

Federal Aviation Regulations (14 CFR

part 39) to add an airworthiness

directive (AD), applicable to all British

Aerospace Model BAe 146 and Model

Avro 146–RJ series airplanes, was

published as a notice of proposed

rulemaking (NPRM) in the Federal

Register on July 27, 2000 (65 FR 46119).

That NPRM:

• Proposed to supersede AD 98–16–

24, amendment 39–10701 (63 FR 42220,

August 7, 1998), which is applicable to

all British Aerospace Model BAe 146

and certain Model Avro 146–RJ series

airplanes.

• Would have continued to require a

one-time inspection for ‘‘drill marks’’

and corrosion on the underside of the

wing top skin, and corrective actions, if

necessary.

• Would have added a requirement

for one-time detailed visual and

borescopic inspections of the fuel tank,

pump, and stringers for paint debris and

inadequacy of the existing protective

treatment coating; and corrective

actions, if necessary.

• Was prompted by issuance of

mandatory continuing airworthiness

information by a foreign civil

airworthiness authority.

• Was intended to prevent corrosion

from developing on the underside of the

top skin of the center wing, which could

result in reduced structural integrity of

the airplane.

Actions Since Issuance of Previous

Proposal

Due consideration has been given to

the comments received in response to

the NPRM.

Request to Revise the Inspection and

Corrective Action Requirements

One commenter, BAe Systems,

requests adding a corrective action to

paragraph (a)(1) of the original NPRM,

and specifying repetitive inspections

until the corrective action is

accomplished. The commenter states

that inspections of the underside of the

wing top skin should continue until the

corrective action is accomplished,

regardless of whether any discrepancies

(drill marks or corrosion) are found.

These changes are necessary because

operators cannot be sure that the

proposed [one-time intrascopic]

inspection will identify slight damage

that, in the long run, could result in

corrosion. The commenter points out

that it could take a minimum of 4 years

for slight damage (due to ‘‘drill marks’’

in the protective coating) to reach a

level that could be detected by an

inspection. In addition, the commenter

has reported the following findings:

• On a number of production

airplanes, during assembly of Stringer

Crown Dagger fittings at Ribs 0 and 2,

‘‘drill marks’’ were produced on the

underside of the wing top skin. These

small marks impaired the protective

treatment in that area.

• The terminating action specified in

British Aerospace Service Bulletin

SB.57–50 was to restore the surface

protection per Repair Instruction Leaflet

(R.I.L.) HC573H9014. However,

following the closing action specified in

that R.I.L, paint debris was found in the

fuel tanks.

The FAA concurs with the

commenter’s request to revise the

proposed NPRM to require certain

corrective actions even if no ‘‘drill

mark’’ or corrosion is detected. After

considering the information provided by

the manufacturer, we have made the

following determinations:

• For airplanes on which protective

treatment coating has NOT been applied

per British Aerospace Service Bulletin

SB.57–50, and for airplanes on which

the inspection required by AD 98–16–

24, amendment 39–10701, has NOT

been done, if no ‘‘drill mark’’ or

corrosion is detected, paragraph (a)(1) of

this AD requires operators to repeat the

intrascopic inspection required by

paragraph (a) of this AD thereafter at

intervals not to exceed 4 years, until the

protective treatment coating is applied,

which is terminating action.

• For airplanes on which the

protective coating HAS been applied

prior to the effective date of this AD per

Service Bulletin SB.57–50, paragraph (b)

of this AD requires operators to do onetime detailed visual and borescopic

inspections of the fuel tank, pump, and

stringers to detect discrepancies

(including paint debris and inadequacy

of existing protective treatment coating)

at the next scheduled maintenance

inspection (‘‘C-check’’) or within 6

months after the effective date of this

AD, whichever occurs first.

We consider that the option to either

continue inspections or do the

terminating action will avoid placing an

undue burden on some operators, while

still ensuring an adequate level of safety

for the fleet. In addition, we have

determined that a shorter compliance

time and more detailed inspections are

necessary for airplanes on which the

protective treatment coating has been

applied per Service Bulletin SB.57–50.

Paragraphs (a), (a)(1), and (a)(2) of this

AD have been revised accordingly.

Request To Revise Company Name

That same commenter requests that

we change the name of the company

responsible for the Model BAe Avro 146

type certificate from British Aerospace

Regional Aircraft American Support to

BAe Systems (Operations) Limited in

the proposed AD.

The FAA concurs with the

commenter’s request to change the name

of the company to BAe Systems

(Operations) Limited. We point out that

this name was changed in the Type

Certificate Data Sheet, and we have

revised the company name throughout

this AD accordingly.

Clarification of Service Information

The FAA has revised Note 3 of this

proposed AD to further clarify a

reference for an additional source of

service information for accomplishing

the inspection action, and to add a

reference for an additional source of

information for accomplishing the

protective treatment actions.

Conclusion

Since these changes expand the scope

of the originally proposed rule, the FAA

has determined that it is necessary to

reopen the comment period to provide

additional opportunity for public

comment.

Cost Impact

There are approximately 39 Model

BAe 146 and Model Avro 146–RJ series

airplanes of U.S. registry that would be

affected by this proposed AD.

The inspection for ‘‘drill marks’’ and

corrosion that is proposed in this AD

action would take approximately 10

work hours per airplane (including

access and close) to accomplish, at an

average labor rate of $60 per work hour.

Based on these figures, the cost impact

of the proposed AD on U.S. operators is

estimated to be $600 per airplane, per

inspection cycle.

The inspection for paint debris and

inadequacy of the existing protective

treatment coating that is proposed in

this AD action would take

approximately 8 work hours per

airplane (including access and close) to

accomplish, at an average labor rate of

$60 per work hour. Based on these

figures, the cost impact of the proposed

inspection on U.S. operators is

estimated to be $480 per airplane.

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.

10978 Federal Register / Vol. 66, No. 35 / Wednesday, February 21, 2001 / Proposed Rules

Regulatory Impact

The regulations proposed herein

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 responsibilities among the

various levels of government. Therefore,

it is determined that this proposal

would not have federalism implications

under Executive Order 13132.

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:

BAE Systems (Operations) Limited

(Formerly British Aerospace Regional

Aircraft): Docket 2000–NM–179–AD.

Applicability: All Model BAe 146 series

airplanes; and Model Avro 146–RJ airplanes,

as listed in British Aerospace Inspection

Service Bulletin ISB.57–57, dated February

25, 2000; 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 per

paragraph (d) 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 corrosion from developing on

the underside of the top skin of the center

wing, which could result in reduced

structural integrity of the airplane,

accomplish the following:

Intrascopic Inspection: ‘‘Drill Marks’’ and

Corrosion

(a) For airplanes on which protective

treatment coating has NOT been applied per

British Aerospace Service Bulletin SB.57–50

[reference Repair Instruction Leaflet (R.I.L.)

HC573H9014], and for airplanes on which

the inspection required by AD 98–16–24,

amendment 39–10701, has not been

accomplished as of the effective date of this

AD: Within 6 months after the effective date

of this AD, perform an intrascopic inspection

for ‘‘drill marks’’ and corrosion on the

underside of the wing top skin, per British

Aerospace Inspection Service Bulletin

ISB.57–57, dated February 25, 2000.

(1) If no ‘‘drill mark’’ or corrosion is

detected, repeat the intrascopic inspection

required by paragraph (a) of this AD

thereafter at intervals not to exceed 4 years,

until the terminating action required by

paragraph (c) of this AD is done.

(2) If any corrosion is detected, prior to

further flight, repair per a method approved

by either the Manager, International Branch,

ANM–116, FAA, Transport Directorate; or

the Civil Aviation Authority (CAA) of the

United Kingdom (or its delegated agent).

(3) If any ‘‘drill mark’’ is detected, or if any

corrosion is detected and repaired, prior to

further flight, do the terminating action

required by paragraph (c) of this AD.

Note 2: Accomplishment of an intrascopic

inspection for ‘‘drill marks’’ and corrosion

prior to the effective date of this AD, per

British Aerospace Service Bulletin SB.57–50,

Revision 2, dated March 20, 1997, is

acceptable for compliance with the

inspection requirements of paragraph (a) of

this AD.

Detailed Visual and Borescopic Inspections:

Paint Debris and Inadequate Protective

Treatment Coating

(b) For airplanes on which protective

treatment coating HAS been applied prior to

the effective date of this AD per British

Aerospace Service Bulletin SB.57–50

(reference R.I.L. HC573H9014): At the next

scheduled maintenance inspection (‘‘Ccheck’’) or within 6 months after the effective

date of this AD, whichever occurs first, do

one-time detailed visual and borescopic

inspections of the fuel tank, pump, and

stringers to detect discrepancies (including

paint debris and inadequacy of existing

protective treatment coating); per Paragraph

D. of the Accomplishment Instructions of

British Aerospace Inspection Service Bulletin

ISB.57–57, dated February 25, 2000.

(1) If no discrepancy is found, no further

action is required by this AD.

(2) If any discrepancy is found, prior to

further flight, do all applicable corrective

actions (including removal of paint debris

and testing of paint adhesion), and the

terminating action required by paragraph (c)

of this AD, per British Aerospace Inspection

Service Bulletin ISB.57–57, dated February

25, 2000.

Note 3: Paragraph B. of the

Accomplishment Instructions of British

Aerospace Inspection Service Bulletin

ISB.57–57, dated February 25, 2000,

references R.I.L. HC573H9024 as an

additional source of service information for

accomplishing the intrascopic inspection.

Paragraph C. of the Accomplishment

Instructions of the service bulletin references

R.I.L. HC573H9032 as an additional source of

service information for applying the

protective treatment coating.

Note 4: For the purposes of this AD, a

detailed visual inspection is defined as: ‘‘An

intensive visual examination of a specific

structural area, system, installation, or

assembly to detect damage, failure, or

irregularity. Available lighting is normally

supplemented with a direct source of good

lighting at intensity deemed appropriate by

the inspector. Inspection aids such as mirror,

magnifying lenses, etc., may be used. Surface

cleaning and elaborate access procedures

may be required.’’

Terminating Action

(c) Application of the protective treatment

coating, per Paragraph C. of the

Accomplishment Instructions of British

Aerospace Inspection Service Bulletin

ISB.57–57, dated February 25, 2000,

constitutes terminating action for the

requirements of this AD.

Alternative Methods of Compliance

(d) 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,

International Branch, ANM–116. Operators

shall submit their requests through an

appropriate FAA Principal Maintenance

Inspector, who may add comments and then

send it to the Manager, International Branch,

ANM–116.

Note 5: Information concerning the

existence of approved alternative methods of

compliance with this AD, if any, may be

obtained from the International Branch,

ANM–116.

Special Flight Permits

(e) Special flight permits may be issued per

§§ 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.

Federal Register / Vol. 66, No. 35 / Wednesday, February 21, 2001 / Proposed Rules 10979

Issued in Renton, Washington, on February

13, 2001.

Vi L. Lipski,

Manager, Transport Airplane Directorate,

Aircraft Certification Service.

[FR Doc. 01–4218 Filed 2–20–01; 8:45 am]

BILLING CODE 4910–13–U

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Parts 413, 415 and 417

[Docket No. FAA–2000–7953; Notice No. 00–

10]

RIN 2120–AG37

Licensing and Safety Requirements for

Launch

AGENCY: Federal Aviation

Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking

(NPRM); extension of comment period.

SUMMARY: This action extends the

comment period for an NPRM that was

published on October 25, 2000. In that

document, the FAA proposed to amend

its regulations to codify its license

application process for launch from a

non-federal launch site, and to codify its

safety requirements for all licensed

launches. This extension is a result of

requests from International Launch

Services, Lockheed Martin Corporation,

Orbital Sciences Corporation, Sea

Launch Company, LLC and The Boeing

Company to extend the comment period

to the proposal.

DATES: Comments must be received on

or before April 23, 2001.

ADDRESSES: Comments on this

document should be mailed or

delivered, in duplicate, to: U.S.

Department of Transportation Dockets,

Docket No. FAA–2000–7953, 400

Seventh Street, SW., Room Plaza 401,

Washington, DC 20590. Comments may

be filed and examined in Room Plaza

401, Washington, DC 20590. Comments

may be filed and examined in Room

Plaza 401 between 10 a.m. and 5 p.m.

weekdays, except Federal holidays.

Comments also may be sent

electronically to the Dockets

Management System (DMS) at the

following Internet address: http://

dms.dot.gov at any time. Commenters

who wish to file comments

electronically, should follow the

instructions on the DMS web site.

FOR FURTHER INFORMATION CONTACT:

Michael Dook, Licensing and Safety

Division (AST–200), Associate

Administrator for Commercial Space

Transportation, Federal Aviation

Administration, DOT, Room 331, 800

Independence Avenue, SW.,

Washington, DC 20591; telephone (202)

267–8462; or Laura Montgomery, Office

of the Chief Counsel (AGC–200), Federal

Aviation Administration, DOT, Room

915, 800 Independence Avenue, SW.,

Washington, DC 20591; telephone (202)

267–3150.

SUPPLEMENTARY INFORMATION:

Comments Invited

Interested persons are invited to

participate in this rulemaking by

submitting such written data, views, or

arguments, as they may desire.

Comments relating to the

environmental, energy, federalism, or

economic impact that might result from

adopting the proposals in this document

are also invited. Substantive comments

should be accompanied by cost

estimates. Comments should identify

the regulatory docket or notice number

and should be submitted in duplicate to

the Rules Docket address specified

above.

All comments received, as well as a

report summarizing each substantive

public contact with FAA personnel on

this rulemaking, will be filed in the

docket. The docket is available for

public inspection before and after the

comment closing date.

The Administrator will consider all

comments received on or before the

closing date before taking action on this

proposed rulemaking. Comments filed

late will be considered as far as possible

without incurring expense or delay. The

proposals contained in this rulemaking

may be changed in light of the

comments received.

Commenters wishing the FAA to

acknowledge receipt of their comments

submitted in response to this notice

must include a pre-addressed, stamped

postcard with those comments on which

the following statement is made:

‘‘Comments to Docket No. FAA–2000–

7953.’’ The postcard will be date

stamped and mailed to the commenters.

Availability of NPRMs

An electronic copy is available on the

Internet by taking the following steps:

(1) Go to the search function of the

Department of Transportation’s

electronic Docket Management System

(DMS) Web page (hhtp://dms.dot.gov/

search).

(2) On the search page type in the last

four digits of the Docket number shown

at the beginning of this notice. Click on

‘‘search.’’

(3) On the next page, which contains

the Docket summary information for the

Docket selected, click on the proposed

rule.

An electronic copy is also available

on the Internet through FAA’s web page

at http://www.faa.gov/avr/arm/nprm/

nprm.htm or the Federal Register’s web

page at http://www.access.gpo.gov/

suldocs/aces/aces140.html.

Further, a copy may be obtained by

submitting a written request to the

Federal Aviation Administration, Office

of Rulemaking, ARM–1, 800

Independence Avenue SW.,

Washington, DC 20591, or by calling

(202) 267–9680. Make sure to identify

the notice number or docket number of

this proposed rule.

Background

The Associate Administrator for

Commercial Space Transportation of the

Federal Aviation Administration (FAA),

Department of Transportation (DOT),

published a notice proposing to amend

the FAA’s commercial space

transportation regulations (October 25,

2000, 65 FR 63921). The FAA proposes

to amend its regulations to codify its

license application process for launch

from a non-federal launch site. A nonfederal launch site is a launch site not

located on a federal launch range. The

proposed regulations are also intended

to codify the safety requirements for

launch operators regarding license

requirements, criteria, and

responsibilities in order to protect the

public from the hazards of launch for

launch from a federal launch range or a

non-federal launch site.

Extension of Comment Period

In accordance with § 404.13 of Title

14, Code of Federal Regulations, the

FAA has reviewed the petitions made

by International Launch Services,

Lockheed Martin Corporation, Orbital

Sciences Corporation, Sea Launch

Company, LLC and The Boeing

Company for extension of the comment

period to Notice No. 00–10. These

petitioners jointly requested an

extension of time of 180 days to permit

more time to address substantial issues

in the notice of proposed rulemaking.

To allow additional time for a more

thorough review of applicable issues

and drafting of responsive comments,

the FAA finds that there is good cause

and it is in the public interest to extend

the comment period for an additional 60

days beyond the 120 already provided.

Accordingly, the comment period for

Notice No. 00–10 is extended until

April 23, 2001.