Federal Register / Vol. 62, No. 33 / Wednesday, February 19, 1997 / Proposed Rules 7387

Based on these figures, the cost impact

of the proposed inspection on U.S.

operators is estimated to be $3,480, or

$60 per airplane, per inspection.

It would take approximately 8 work

hours per airplane to accomplish the

proposed terminating modification, and

the average labor rate is $60 per work

hour. The cost of parts is minimal.

Based on these figures, the cost impact

of the proposed AD on U.S. operators is

estimated to be $27,840, or $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.

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:

Israel Aircraft Industries (IAI), Ltd.: Docket

96–NM–96–AD.

Applicability: Model 1125 Westwind Astra

series airplanes as listed in IAI Service

Bulletin SB 1125–53–135, dated April 26,

1995; certificated in any category.

Note 1: This AD applies to each airplane

identified in the preceding applicability

provision, regardless of whether it has been

otherwise 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 movement of the support beam

attached to the fuselage frame at station

452.00, which could restrict movement of the

elevator and rudder controls, and

consequently lead to reduced controllability

of the airplane, accomplish the following:

(a) Within 50 hours time-in-service after

the effective date of this AD, conduct a visual

inspection to detect loose or damaged

(‘‘fretted’’) rivets that fasten the support beam

to the fuselage frame at station 452.000, in

accordance with Part A of IAI Service

Bulletin SB 1125–53–135, dated April 26,

1995.

(1) If no loose or fretted rivet is detected,

repeat this inspection thereafter at intervals

not to exceed 250 hours time-in-service until

the modification required by paragraph (b) of

this AD is accomplished.

(2) If any loose or fretted rivet is detected,

prior to further flight, modify the support

beam in accordance with Part B of IAI

Service Bulletin SB 1125–53–135, dated

April 26, 1995. After this modification is

accomplished, no further action is required

by paragraphs (a) or (b) of this AD.

(b) Within 500 hours time-in-service after

the effective date of this AD, modify the

support beam in accordance with Part B of

IAI Service Bulletin SB 1125–53–135, dated

April 26, 1995. Accomplishment of this

modification constitutes terminating action

for the repetitive inspections required by

paragraph (a)(1) of this AD.

(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,

Standardization Branch, ANM–113, FAA,

Transport Airplane Directorate. Operators

shall submit their requests through an

appropriate FAA Principal Maintenance

Inspector, who may add comments and then

send it to the Manager, Standardization

Branch, ANM–113.

Note 2: Information concerning the

existence of approved alternative methods of

compliance with this AD, if any, may be

obtained from the Standardization Branch,

ANM–113.

(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 February

11, 1997.

Darrell M. Pederson,

Acting Manager, Transport Airplane

Directorate, Aircraft Certification Service.

[FR Doc. 97–3969 Filed 2–18–97; 8:45 am]

BILLING CODE 4910–13–U

14 CFR Part 39

[Docket No. 96–ANE–38]

RIN 2120–AA64

Airworthiness Directives; General

Electric Aircraft Engines CF700 Series

Turbofan Engines

AGENCY: Federal Aviation

Administration, DOT.

ACTION: Notice of proposed rulemaking

(NPRM).

SUMMARY: This document proposes the

adoption of a new airworthiness

directive (AD) that is applicable to

General Electric Aircraft Engines (GE)

CF700 series turbofan engines. This

proposal would require replacement of

existing fan guards with new, improved

fan guards. This proposal is prompted

by a report of uncontained fan blades

which separated from the engine during

an overspeed. The actions specified by

the proposed AD are intended to

prevent an overspeed of the aft fan disk

from resulting in an uncontained engine

failure and damage to the aircraft.

DATES: Comments must be received by

March 21, 1997.

ADDRESSES: Submit comments in

triplicate to the Federal Aviation

Administration (FAA), New England

Region, Office of the Assistant Chief

Counsel, Attention: Rules Docket No.

96-ANE–38, 12 New England Executive

Park, Burlington, MA 01803-5299.

Comments may be inspected at this

location between 8:00 a.m. and 4:30

p.m., Monday through Friday, except

Federal holidays.

The service information referenced in

the proposed rule may be obtained from

GE Aircraft Engines, 1000 Western Ave.,

Lynn, MA 01910; telephone (617) 594–

3140, fax (617) 594-4805. This

information may be examined at the
7388 Federal Register / Vol. 62, No. 33 / Wednesday, February 19, 1997 / Proposed Rules

FAA, New England Region, Office of the

Assistant Chief Counsel, 12 New

England Executive Park, Burlington,

MA.

FOR FURTHER INFORMATION CONTACT:

Dave Keenan, Aerospace Engineer,

Engine Certification Office, FAA, Engine

and Propeller Directorate, 12 New

England Executive Park, Burlington, MA

01803–5299; telephone (617) 238–7139,

fax (617) 238–7199.

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

should 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 notice may

be changed in light of the comments

received.

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 notice

must submit a self-addressed, stamped

postcard on which the following

statement is made: ‘‘Comments to

Docket Number 96-ANE–38.’’ 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, New England Region, Office of the

Assistant Chief Counsel, Attention:

Rules Docket No. 96-ANE-38, 12 New

England Executive Park, Burlington, MA

01803-5299.

Discussion

The Federal Aviation Administration

(FAA) received a report of uncontained

fan blades on a General Electric Aircraft

Engines (GE) CF700 series turbofan

engine installed on a Marcel Avions

Dassault Falcon 20 aircraft. During

takeoff, the aircraft encountered a flock

of birds that were ingested into the

engine, which removed enough fan

blades to unload the aft fan and allow

the undamaged core rotor to overspeed

the fan disk. This overspeed resulted in

the release of fan blades, which

penetrated the aircraft fuselage,

resulting in an engine and aircraft fire.

This condition, if not corrected, would

allow an overspeed of the aft fan disk to

result in an uncontained engine failure

and damage to the aircraft.

The FAA has reviewed and approved

the technical contents of GE Service

Bulletin (SB) No. (CF700) 72–154, dated

December 20, 1996, that describes

procedures for replacement of existing

fan guards with new, improved fan

guards.

Since an unsafe condition has been

identified that is likely to exist or

develop on other products of this same

type design, the proposed AD would

require, within two years after the

effective date of this AD, replacement of

existing fan guards with new, improved

fan guards. This calendar end-date was

determined based upon parts

availability and risk analysis. The

actions would be required to be

accomplished in accordance with the

SB described previously.

There are approximately 826 engines

of the affected design in the worldwide

fleet. The FAA estimates that 414

engines installed on aircraft of U.S.

registry would be affected by this

proposed AD, that it would take

approximately 20 work hours per engine

to accomplish the proposed actions, and

that the average labor rate is $60 per

work hour. Required parts would cost

approximately $50,000 per engine.

Based on these figures, the total cost

impact of the proposed AD on U.S.

operators is estimated to be $21,196,800.

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

fm 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 USC 106(g), 40113, 44701.

§ 39.13 [Amended]

2. Section 39.13 is amended by

adding the following new airworthiness

directive:

General Electric Aircraft Engines: Docket

No. 96-ANE–38.

Applicability: General Electric Aircraft

Engines (GE) CF700 series turbofan engines,

installed on but not limited to Marcel Avions

Dassault Falcon 20, and Sabreliner NA265

series aircraft.

Note 1: This airworthiness directive (AD)

applies to each engine 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 engines 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 (b)

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 an overspeed of the aft fan disk

fmom resulting in an uncontained engine

failure and damage to the aircraft,

accomplish the following:

(a) Within 2 years after the effective date

of this AD, replace existing fan guards with

new, improved fan guards, in accordance

with GE Service Bulletin (SB) No. (CF700)

72–154, dated December 20, 1996.

(b) 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, Engine

Certification Office. The request should be
Federal Register / Vol. 62, No. 33 / Wednesday, February 19, 1997 / Proposed Rules 7389

forwarded through an appropriate FAA

Principal Maintenance Inspector, who may

add comments and then send it to the

Manager, Engine Certification Office.

Note 2: Information concerning the

existence of approved alternative methods of

compliance with this airworthiness directive,

if any, may be obtained fmom the Engine

Certification Office.

(c) 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 aircraft to

a location where the requirements of this AD

can be accomplished.

Issued in Burlington, Massachusetts, on

February 4, 1997.

Jay J. Pardee,

Manager, Engine and Propeller Directorate,

Aircraft Certification Service.

[FR Doc. 97–4013 Filed 2–18–97; 8:45 am]

BILLING CODE 4910–13–U

14 CFR Part 71

[Airspace Docket No. 97–AGL–6]

Modification of Class E Airspace;

Spearfish, SD, Black Hills-Clyde Ice

Field

AGENCY: Federal Aviation

Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking.

SUMMARY: This notice proposes to

modify Class E airspace at Spearfish,

SD. A Global Positioning System (GPS)

standard instrument approach

procedure (SIAP) to Runway 12 has

been developed for Black Hills-Clyde

Ice Field. Controlled airspace extending

upward from 700 to 1200 feet above

ground level (AGL) is needed to contain

aircraft executing the approach. The

intended affect of this proposal is to

provide segregation of aircraft using

instrument approach procedures in

instrument conditions from other

aircraft operating in visual weather

conditions.

DATES: Comments must be received on

or before April 7, 1997.

ADDRESSES: Send comments on the

proposal in triplicate to: Federal

Aviation Administration, Office of the

Assistant Chief Counsel, AGL–7, Rules

Docket No. 97–AGL–6, 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, Operations Branch,

Federal Aviation Administration, 2300

East Devon Avenue, Des Plaines,

Illinois.

FOR FURTHER INFORMATION CONTACT:

John A. Clayborn, Air Traffic Division,

Operations Branch, AGL–530, 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. 97–

AGL–6.’’ 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 the

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 part 71 of the Federal

Aviation Regulations (14 CFR part 71) to

modify Class E airspace at Spearfish,

SD; this proposal would provide

adequate Class E airspace for operators

executing the GPS Runway 12 SIAP at

Black Hills-Clyde Ice Field. Controlled

airspace extending upward from 700 to

1200 feet AGL is needed to contain

aircraft executing the approach. The

intended affect of this action is to

provide segregation of aircraft using

instrument approach procedures in

instrument conditions from other

aircraft operating in visual weather

conditions. The area would be depicted

on appropriate aeronautical charts

thereby enabling pilots to

circumnavigate the area or otherwise

comply with IFR procedures. Class E

airspace designations for airspace areas

extending upward from 700 feet or more

above the surface of the earth published

in paragraph 6005 of FAA Order

7400.9D dated September 4, 1996, and

effective September 16, 1996, which is

incorporated by reference in 14 CFR

71.1. The Class E airspace 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.

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 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

Accordingly, pursuant to the

authority delegated to me, the Federal

Aviation Administration proposes to

amend part 71 of the Federal Aviation

Regulations (14 CFR part 71) as follows: