27002 Federal Register / Vol. 63, No. 94 / Friday, May 15, 1998 / Proposed Rules

pressure turbine (LPT) stage 4 disk

cracking on General Electric Company

(GE) CF6–6 series turbofan engines. The

investigation revealed that the dovetail

slot bottoms of the LPT stage 4 disks,

part numbers (P/Ns) 9010M40P01,

9010M40P02, 9010M40P07,

9010M40P09, and 9010M40P12, have

higher than predicted levels of stress

during engine operation. In addition,

the low cycle fatigue (LCF) material

properties have been found to be lower

than the original design intent. The disk

cracks were found by inspection during

engine shop visits. Extensive material

testing, and stress and life analyses

revealed a minimum calculated LCF

cyclic life lower than the published LCF

cyclic retirement life for the stage 4 LPT

disks. This condition, if not corrected,

could result in LPT stage 4 disk

cracking, which could result in an

uncontained engine failure and damage

to the aircraft.

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 removal from service of affected

LPT stage 4 disks prior to reaching new,

reduced cyclic life limits, and

replacement with serviceable parts .

There are approximately 257 engines

of the affected design in the worldwide

fleet. The FAA estimates that 242

engines installed on aircraft of U.S.

registry would be affected by this

proposed AD, and that required parts,

on a prorated basis, would cost

approximately $22,432 per engine.

Based on these figures, the total cost

impact of the proposed AD on U.S.

operators is estimated to be $5,428,544.

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:

General Electric Company: Docket No. 98–

ANE–18–AD.

Applicability: General Electric Company

(GE) CF6–6 series turbofan engines, installed

on but not limited to McDonnell Douglas

DC–10–10 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 (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 low pressure turbine (LPT)

stage 4 disk cracking, which could result in

an uncontained engine failure and damage to

the aircraft, accomplish the following:

(a) Remove from service LPT stage 4 disks,

part numbers (P/Ns) 9010M40P01,

9010M40P02, 9010M40P07, 9010M40P09,

and 9010M40P12, and replace with

serviceable parts, in accordance with the

following schedule:

(1) For disks with 12,300 or more cycles

since new (CSN) but less than 24,000 CSN on

the effective date of this AD, remove from

service affected disks at the earliest of the

following:

(i) The next piece-part exposure after the

effective date of this AD; or

(ii) The next engine shop visit after

accumulating 16,500 CSN; or

(iii) Within 4,200 cycles in service (CIS)

after the effective date of this AD; or

(iv) Prior to exceeding 24,000 CSN.

(2) For disks with 5,000 or more CSN, but

less than 12,300 CSN, on the effective date

of this AD, remove from service affected

disks at the earlier of the following:

(i) Prior to exceeding 16,500 CSN; or

(ii) Within 7,300 CIS after the effective date

of this AD.

(3) For disks with less than 5,000 CSN on

the effective date of this, remove from service

affected disks prior to exceeding 12,300 CSN.

(b) This AD establishes a new cyclic

retirement life limit for LPT stage 4 disks of

12,300 CSN. Thereafter, except as provided

in paragraph (d) of this AD, no alternative

cyclic retirement life limits may be approved

for LPT stage 4 disks.

(c) For the purpose of this AD, the

following definitions apply:

(1) An engine shop visit is defined as

separation of a major, static flange.

(2) Piece-part exposure is when the

affected part is completely disassembled in

accordance with the disassembly instructions

in the engine manual or section of the

Instructions for Continued Airworthiness

(ICA).

(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, Engine

Certification Office. Operators shall submit

their requests 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 from the Engine

Certification Office.

(e) 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

May 7, 1998.

Thomas A. Boudreau,

Acting Manager, Engine and Propeller

Directorate, Aircraft Certification Service.

[FR Doc. 98–12915 Filed 5–14–98; 8:45 am]

BILLING CODE 4910–13–U

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. 97–ANE–45–AD]

RIN 2120–AA64

Airworthiness Directives; Pratt &

Whitney JT8D Series Turbofan Engines

AGENCY: Federal Aviation

Administration, DOT.
Federal Register / Vol. 63, No. 94 / Friday, May 15, 1998 / Proposed Rules 27003

ACTION: Supplemental notice of

proposed rulemaking; reopening of

comment period.

SUMMARY: This document revises an

earlier proposed airworthiness directive

(AD), applicable to Pratt & Whitney

JT8D series turbofan engines, that would

have required a one-time visual and

eddy current inspection of certain stage

3–4 low pressure compressor (LPC)

disks and stage 7–12 high pressure

compressor (HPC) disks identified by

part number and serial number, for arc

burns in tie rod, shielding, and pressure

balance holes, and, if necessary, repair

of tie rod holes. That proposal was

prompted by reports of improper

fixturing during the electrolytic cleaning

process of certain compressor disks at a

certified repair station, Avial or

Greenwich Air Services, currently GE

Engine Services Dallas LP, certificate

number RA1R445K of Dallas, Texas,

that can result in damage to the disks in

the form of arc burns. This action

revises the proposed rule by adding a

drawdown schedule for removal of

affected disks. The actions specified by

this proposed AD are intended to

prevent compressor disk cracking from

arc burns in tie rod holes, shielding

holes, or pressure balance holes, which

could lead to a fracture of a compressor

disk, resulting in uncontained release of

engine fragments, inflight engine

shutdown, and airframe damage.

DATES: Comments must be received by

July 14, 1998.

ADDRESSES: Submit comments in

triplicate to the Federal Aviation

Administration (FAA), New England

Region, Office of the Regional Counsel,

Attention: Rules Docket No. 97–ANE–

45–AD, 12 New England Executive Park,

Burlington, MA 01803–5299. Comments

may also be sent via the Internet using

the following address: ‘‘9-adengineprop@faa.dot.gov’’. Comments

sent via the Internet must contain the

docket number in the subject line.

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 Engine Services—Dallas LP, 9311

Reeves St., Dallas, TX 75235–2095. This

information may be examined at the

FAA, New England Region, Office of the

Regional Counsel, 12 New England

Executive Park, Burlington, MA.

FOR FURTHER INFORMATION CONTACT:

Christopher Spinney, Aerospace

Engineer, Engine Certification Office,

FAA, Engine and Propeller Directorate,

12 New England Executive Park,

Burlington, MA 01803–5299; telephone

(781) 238–7175, fax (781) 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 97–ANE–45–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, New England Region, Office of the

Regional Counsel, Attention: Rules

Docket No. 97–ANE–45–AD, 12 New

England Executive Park, Burlington, MA

01803–5299.

Discussion

A proposal to amend part 39 of the

Federal Aviation Regulations (14 CFR

part 39) to add an airworthiness

directive (AD), applicable to Pratt &

Whitney (PW) JT8D series turbofan

engines, was published as a notice of

proposed rulemaking (NPRM) in the

Federal Register on January 22,1998 (63

FR 3483). That NPRM would have

required, at the next shop visit after the

effective date of the AD, a one-time

visual and eddy current inspection of

compressor disks to detect arc burn

damage and if appropriate, repair of

damaged area. That NPRM was

prompted by a report of certain low

pressure compressor (LPC) and high

pressure compressor (HPC) disks,

installed on PW JT8D series turbofan

engines, that were improperly fixtured

during the electrolytic cleaning process

at a certain repair station. That improper

fixturing can lead to damage to

compressor disks in the form of arc

burns. Arc burns can degrade disk

material properties and create a stress

concentration that results in premature

cracking of a disk and subsequent

failure. That condition, if not corrected,

could result in compressor disk cracking

from arc burns in tie rod holes,

shielding holes, or pressure balance

holes, which could lead to a fracture of

a compressor disk, resulting in

uncontained release of engine

fragments, inflight engine shutdown,

and airframe damage.

Since the issuance of that NPRM, the

FAA received a comment from the

manufacturer stating that a drawdown

schedule for removal of affected disks

should be added to the proposed rule to

maintain an acceptable level of safety,

instead of requiring the inspection at the

next shop visit. The FAA concurs and

has added a drawdown schedule of

3,000 cycles in service (CIS) after the

effective date of this AD, or the next

shop visit, whichever occurs first.

Since this change expands 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.

There are a total of 1,388 compressor

disks exposed to improper fixturing

during the electrolytic cleaning process.

The FAA estimates that 1,054 of these

disks currently remain in service in the

worldwide fleet, which represents

approximately 210 engines. The FAA

also estimates that 840 of the disks

affected by the proposed AD are

installed in engines installed on aircraft

of U.S. registry. It will take

approximately 30 work hours to

accomplish the proposed actions per

disk, and that the average labor rate is

$60 per work hour. Required parts

would cost approximately $23 per disk.

Based on these figures, the total cost

impact of the proposed AD on U.S.

operators is estimated to be $1,531,320.

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.
27004 Federal Register / Vol. 63, No. 94 / Friday, May 15, 1998 / Proposed Rules

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:

Pratt & Whitney: Docket No. 97–ANE–45–

AD.

Applicability: Pratt & Whitney (PW) JT8D–

1, –1A, –1B, –7, –7A, –7B, –9, –9A, –11, –15,

–15A, –17, –17A, –17R, –17AR, –209, –217,

–217A, –217C, and –219 model turbofan

engines which have a compressor disk

installed identified by part number and serial

number in Table 1 of this airworthiness

directive (AD). These engines are installed on

but not limited to Boeing 727 and 737 series,

and McDonnell Douglas DC–9 and MD80

series aircraft.

Note 1: This 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 (e) 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 compressor disk cracking from

arc burns in tie rod holes, shielding holes, or

pressure balance holes, which could lead to

a fracture of a compressor disk, resulting in

uncontained release of engine fragments,

inflight engine shutdown, and airframe

damage, accomplish the following:

(a) Within 3,000 cycles in service (CIS)

after the effective date of this AD, or the next

shop visit, whichever occurs first, remove,

visually inspect, eddy current inspect, and

repair or replace with a serviceable part disks

identified by part number (P/N) and serial

number (S/N) in Table 1 of this AD in

accordance with GE Engine Services—Dallas,

LP, Engineering Bulletin (EB) JT8D–025,

dated March 27, 1998. The next shop visit

must occur by [insert 10 years from AD

effective date].

TABLE 1

Stage P/N S/N

3 ........... 745803 H13469

3 ........... 745803 N48096

3 ........... 745803 N48361

3 ........... 745803 P77936

3 ........... 745803 P77942

3 ........... 745803 P78298

3 ........... 745803 P98041

3 ........... 745803 P98334

3 ........... 745803 R18766

3 ........... 745803 R18989

3 ........... 745803 R19227

3 ........... 745803 R73555

3 ........... 745803 R74156

4 ........... 745704 2A3332

4 ........... 745704 2A4258

4 ........... 745704 G51920

4 ........... 745704 H04195

4 ........... 745704 J46788

4 ........... 745704 J76639

4 ........... 745704 K11388

4 ........... 745704 K11483

4 ........... 745704 K12946

4 ........... 745704 K52509

4 ........... 745704 K53069

4 ........... 745704 L60864

4 ........... 745704 L61145

4 ........... 777704 B114AA0034

4 ........... 777704 B114AA0178

4 ........... 777704 B114AA0274

4 ........... 777704 BBDUA14597

4 ........... 777704 BBDUAH4675

4 ........... 777704 BBDUAH7390

4 ........... 777704 J77499

4 ........... 777704 J94590

4 ........... 777704 K43182

4 ........... 777704 L81216

4 ........... 777704 L81217

4 ........... 777704 L81218

4 ........... 777704 L81224

4 ........... 777704 L81688

4 ........... 777704 M40670

4 ........... 777704 M44376

4 ........... 777704 M44384

4 ........... 777704 M53723

4 ........... 777704 M53753

4 ........... 777704 M53810

4 ........... 777704 M53815

4 ........... 777704 N30898

4 ........... 777704 N30938

4 ........... 777704 N30943

TABLE 1—Continued

Stage P/N S/N

4 ........... 777704 N30947

4 ........... 777704 N30956

4 ........... 777704 N53261

4 ........... 777704 N53280

4 ........... 777704 N53284

4 ........... 777704 N53290

4 ........... 777704 N53296

4 ........... 777704 N53299

4 ........... 777704 N53309

4 ........... 777704 N53317

4 ........... 777704 N53324

4 ........... 777704 N53337

4 ........... 777704 N53340

4 ........... 777704 N53347

4 ........... 777704 N53355

4 ........... 777704 N53356

4 ........... 777704 N53361

4 ........... 777704 N53364

4 ........... 777704 N53366

4 ........... 777704 N53373

4 ........... 777704 N53388

4 ........... 777704 N53390

4 ........... 777704 N53392

4 ........... 777704 N53397

4 ........... 777704 N53402

4 ........... 777704 N53405

4 ........... 777704 N53407

4 ........... 777704 N53409

4 ........... 777704 N53411

4 ........... 777704 N53413

4 ........... 777704 N53416

4 ........... 777704 N53419

4 ........... 777704 N53426

4 ........... 777704 N53434

4 ........... 777704 N53437

4 ........... 777704 N53438

4 ........... 777704 N53449

4 ........... 777704 N63635

4 ........... 777704 N63637

4 ........... 777704 N63646

4 ........... 777704 N63651

4 ........... 777704 N63696

4 ........... 777704 N63704

4 ........... 777704 N63718

4 ........... 777704 N63736

4 ........... 777704 N63740

4 ........... 777704 N63745

4 ........... 777704 N63803

4 ........... 777704 P50018

4 ........... 777704 P50025

4 ........... 777704 P50036

4 ........... 777704 P50050

4 ........... 777704 P50054

4 ........... 777704 P50083

4 ........... 777704 P63990

4 ........... 777704 R21906

4 ........... 777704 R21930

4 ........... 777704 R21985

4 ........... 777704 R21991

4 ........... 777704 R41366

4 ........... 777704 R42431

4 ........... 777704 R56904

4 ........... 777704 R56911

4 ........... 777704 R56932

4 ........... 777704 R56948

4 ........... 777704 R75603

4 ........... 777704 R75635

4 ........... 777704 R75644

4 ........... 777704 S28269

4 ........... 777704 S28335

4 ........... 777704 S28336

4 ........... 777704 S65405
Federal Register / Vol. 63, No. 94 / Friday, May 15, 1998 / Proposed Rules 27005

TABLE 1—Continued

Stage P/N S/N

4 ........... 777704 S65417

4 ........... 777704 S87903

4 ........... 777704 S91630

4 ........... 777704 T00466

4 ........... 777704 T48099

4 ........... 777704 T48101

4 ........... 777704 T48105

4 ........... 799504 K23796

4 ........... 799504 L61578

4 ........... 799504 L61597

4 ........... 799504 L89794

4 ........... 799504 M77214

4 ........... 799504 N06109

4 ........... 799504 N06248

4 ........... 799504 N06731

4 ........... 799504 N06908

4 ........... 799504 N06911

4 ........... 799504 N32484

4 ........... 799504 N32493

4 ........... 799504 N32514

4 ........... 799504 N33627

4 ........... 799504 N33880

4 ........... 799504 N34238

4 ........... 799504 N89280

4 ........... 799504 N89817

4 ........... 799504 N90599

4 ........... 799504 N90812

4 ........... 799504 N90849

4 ........... 799504 P45299

4 ........... 799504 P45435

4 ........... 799504 R23598

4 ........... 799504 R23753

4 ........... 799504 R24022

4 ........... 799504 R24310

4 ........... 799504 R24543

4 ........... 799504 S07095

4 ........... 799504 S07147

4 ........... 799504 S07164

4 ........... 799504 S07250

4 ........... 799504 S58162

4 ........... 799504 S58237

4 ........... 799504 T02774

4 ........... 799504 T02897

4 ........... 799504 T03020

4 ........... 799504 T03027

4 ........... 799504 T03038

4 ........... 799504 T03047

7 ........... 701407 7Z5379

7 ........... 766007 G11181

7 ........... 774407 B207AA0057

7 ........... 774407 B207AA0164

7 ........... 774407 B207AA0224

7 ........... 774407 B207AA0270

7 ........... 774407 B207AA0546

7 ........... 774407 B207AA0719

7 ........... 774407 B207AA0757

7 ........... 774407 B207AA0768

7 ........... 774407 B207AA0775

7 ........... 774407 B207AA0913

7 ........... 774407 BENCAH1914

7 ........... 774407 BENCAH4273

7 ........... 774407 BENCAJ5690

7 ........... 774407 BENCAK1601

7 ........... 774407 BENCAK5082

7 ........... 774407 BENCAK5701

7 ........... 774407 BENCAK6044

7 ........... 774407 BENCAK6586

7 ........... 774407 G78791

7 ........... 774407 H19147

7 ........... 774407 H75592

7 ........... 774407 J08985

7 ........... 774407 J17315

TABLE 1—Continued

Stage P/N S/N

7 ........... 774407 J17370

7 ........... 774407 J72117

7 ........... 774407 J93428

7 ........... 774407 J93669

7 ........... 774407 K78068

7 ........... 774407 K78149

7 ........... 774407 K78378

7 ........... 774407 L23953

7 ........... 774407 L71885

7 ........... 774407 L71922

7 ........... 774407 L72170

7 ........... 774407 L72261

7 ........... 774407 M38646

7 ........... 774407 M44626

7 ........... 774407 M60192

7 ........... 774407 M78767

7 ........... 774407 M83783

7 ........... 774407 M93487

7 ........... 774407 M93549

7 ........... 774407 N24007

7 ........... 774407 N24131

7 ........... 774407 N58891

7 ........... 774407 N58905

7 ........... 774407 N59040

7 ........... 774407 N70414

7 ........... 774407 N88273

7 ........... 774407 N88281

7 ........... 774407 N88306

7 ........... 774407 N93477

7 ........... 774407 N95003

7 ........... 774407 P14688

7 ........... 774407 P14851

7 ........... 774407 P16547

7 ........... 774407 P35320

7 ........... 774407 P35374

7 ........... 774407 P35475

7 ........... 774407 P54474

7 ........... 774407 P54594

7 ........... 774407 P60383

7 ........... 774407 P60383

7 ........... 774407 P81375

7 ........... 774407 P81382

7 ........... 774407 P86353

7 ........... 774407 R19478

7 ........... 774407 R31305

7 ........... 774407 R37450

7 ........... 774407 R46879

7 ........... 774407 R46934

7 ........... 774407 R57593

7 ........... 774407 R57744

7 ........... 774407 R57769

7 ........... 774407 R72169

7 ........... 774407 R72236

7 ........... 774407 R81458

7 ........... 774407 R81507

7 ........... 774407 R81527

7 ........... 774407 R81612

7 ........... 774407 R90895

7 ........... 774407 S05652

7 ........... 774407 S13843

7 ........... 774407 S14099

7 ........... 774407 S14103

7 ........... 774407 S36805

7 ........... 774407 S36885

7 ........... 774407 S36896

7 ........... 774407 S36994

7 ........... 774407 S36995

7 ........... 774407 S37166

7 ........... 774407 S37554

7 ........... 774407 T04613

7 ........... 774407 T04687

7 ........... 774407 T04739

TABLE 1—Continued

Stage P/N S/N

7 ........... 774407 T04806

7 ........... 774407 T04812

7 ........... 774407 T04814

7 ........... 774407 T04837

7 ........... 774407 T04843

7 ........... 774407 T04885

7 ........... 774407 T04903

7 ........... 774407 T04960

7 ........... 774407 T05000

7 ........... 774407 T05108

7 ........... 5006007–02 BENCAK9696

7 ........... 5006007–02 BENCAK9900

7 ........... 5006007–02 BENCAL0760

7 ........... 5006007–02 BENCAL1937

7 ........... 5006007–02 BENCAL4577

7 ........... 5006007–02 BENCAL5766

7 ........... 5006007–01 AA0297

7 ........... 5006007–01 B207AA0069

7 ........... 5006007–01 B207AA0135

7 ........... 5006007–01 B207AA0155

7 ........... 5006007–01 B207AA0172

7 ........... 5006007–01 B207AA0177

7 ........... 5006007–01 B207AA0354

7 ........... 5006007–01 B207AA0355

7 ........... 5006007–01 B207AA0421

7 ........... 5006007–01 B207AA0493

7 ........... 5006007–01 B207AA0533

7 ........... 5006007–01 B207AA0571

7 ........... 5006007–01 B207AA0684

7 ........... 5006007–01 B207AA0756

7 ........... 5006007–01 B207AA0811

7 ........... 5006007–01 BENCAH3454

7 ........... 5006007–01 BENCAH4003

7 ........... 5006007–02 BENCAH4004

7 ........... 5006007–01 BENCAH4371

7 ........... 5006007–01 BENCAH4373

7 ........... 5006007–01 BENCAH4794

7 ........... 5006007–01 BENCAH4797

7 ........... 5006007–01 BENCAH5400

7 ........... 5006007–01 BENCAH5401

7 ........... 5006007–01 BENCAJ8559

7 ........... 5006007–01 BENCAJ8585

7 ........... 5006007–01 BENCAJ8614

7 ........... 5006007–01 BENCAJ8626

7 ........... 5006007–01 BENCAJ8656

7 ........... 5006007–01 BENCAJ9106

7 ........... 5006007–01 BENCAK5959

7 ........... 5006007–01 BENCAK5963

7 ........... 5006007–01 BENCAK9770

7 ........... 5006007–01 BENCAK9771

7 ........... 5006007–01 BENCAL2683

7 ........... 5006007–01 BENCAL3622

7 ........... 5006007–01 BENCAL3931

7 ........... 5006007–01 K20260

7 ........... 5006007–01 K20499

7 ........... 5006007–01 K20543

7 ........... 5006007–01 N09043

7 ........... 5006007–01 N65077

7 ........... 5006007–01 N65107

7 ........... 5006007–01 N65132

7 ........... 5006007–01 N93173

7 ........... 5006007–01 N93193

7 ........... 5006007–01 P23185

7 ........... 5006007–01 P23236

7 ........... 5006007–01 P49794

7 ........... 5006007–01 P49835

7 ........... 5006007–01 P92551

7 ........... 5006007–01 P92580

7 ........... 5006007–01 R12660

7 ........... 5006007–01 R12670

7 ........... 5006007–01 R12710

7 ........... 5006007–01 R35504
27006 Federal Register / Vol. 63, No. 94 / Friday, May 15, 1998 / Proposed Rules

TABLE 1—Continued

Stage P/N S/N

7 ........... 5006007–01 R35530

7 ........... 5006007–01 R36545

7 ........... 5006007–01 R43821

7 ........... 5006007–01 R54576

7 ........... 5006007–01 R54634

7 ........... 5006007–01 R79460

7 ........... 5006007–01 R79466

7 ........... 5006007–01 R92415

7 ........... 5006007–01 R92431

7 ........... 5006007–01 R92435

7 ........... 5006007–01 R92442

7 ........... 5006007–01 S11034

7 ........... 5006007–01 S11058

7 ........... 5006007–01 S11154

7 ........... 5006007–01 S11156

7 ........... 5006007–01 S11179

7 ........... 5006007–01 S11182

7 ........... 5006007–01 S11186

7 ........... 5006007–01 S11202

7 ........... 5006007–01 S11206

7 ........... 5006007–01 S56884

7 ........... 5006007–01 S56888

7 ........... 5006007–01 S56998

7 ........... 5006007–01 S57073

7 ........... 5006007–01 S57075

7 ........... 5006007–01 S57117

7 ........... 5006007–01 S57120

7 ........... 5006007–01 S57156

7 ........... 5006007–01 S57157

7 ........... 5006007–01 S57192

7 ........... 5006007–01 S57220

7 ........... 5006007–01 S57332

7 ........... 5006007–01 S57354

7 ........... 5006007–01 S57405

7 ........... 5006007–01 S57412

7 ........... 5006007–01 S57420

7 ........... 5006007–01 S57424

7 ........... 5006007–01 S57437

7 ........... 5006007–01 S57452

7 ........... 5006007–01 S57467

7 ........... 5006007–01 S57470

7 ........... 5006007–01 S57589

8 ........... 748608 B208AA0043

8 ........... 748608 BENCAK1564

8 ........... 748608 H50069

8 ........... 748608 H64474

8 ........... 748608 H64605

8 ........... 748608 J57591

8 ........... 748608 J94824

8 ........... 748608 M54652

8 ........... 748608 M54835

8 ........... 748608 N14526

8 ........... 748608 N84300

8 ........... 748608 P–28517

8 ........... 748608 P26161

8 ........... 748608 P28493

8 ........... 748608 P28504

8 ........... 748608 P28505

8 ........... 748608 P28511

8 ........... 748608 P28542

8 ........... 748608 P28614

8 ........... 748608 P98885

8 ........... 748608 S01079

8 ........... 748608 S01090

8 ........... 748608 S50742

8 ........... 748608 S78049

8 ........... 748608 S78056

8 ........... 748608 S78100

8 ........... 787008 J76875

8 ........... 787008 K12869

8 ........... 787008 M77087

8 ........... 787008 N06806

TABLE 1—Continued

Stage P/N S/N

8 ........... 787008 N32406

8 ........... 787008 N34151

8 ........... 787008 N89336

8 ........... 787008 N89554

8 ........... 787008 N90392

8 ........... 787008 N90682

8 ........... 787028 N89693

8 ........... 787208 AA0676

8 ........... 787208 B07691

8 ........... 787208 B228AA0169

8 ........... 787208 B228AA0242

8 ........... 787208 B228AA0288

8 ........... 787208 B228AA0389

8 ........... 787208 B228AA0426

8 ........... 787208 B228AA0537

8 ........... 787208 B228AA0576

8 ........... 787208 B228AA0638

8 ........... 787208 B228AA0641

8 ........... 787208 B228AA0746

8 ........... 787208 B228AA0859

8 ........... 787208 B228AA0866

8 ........... 787208 B228AA0878

8 ........... 787208 B228AA0905

8 ........... 787208 B228AA1070

8 ........... 787208 B228AA1117

8 ........... 787208 BENCAH0302

8 ........... 787208 BENCAH1584

8 ........... 787208 BENCAH3448

8 ........... 787208 BENCAJ5729

8 ........... 787208 BENCAJ8175

8 ........... 787208 BENCAJ8767

8 ........... 787208 BENCAJ8773

8 ........... 787208 BENCAJ8790

8 ........... 787208 BENCAJ9142

8 ........... 787208 BENCAK4678

8 ........... 787208 BENCAK4771

8 ........... 787208 BENCAK5470

8 ........... 787208 BENCAK6156

8 ........... 787208 BENCAK6162

8 ........... 787208 BENCAK6398

8 ........... 787208 BENCAK8259

8 ........... 787208 BENCAK9252

8 ........... 787208 BENCAK9261

8 ........... 787208 BENCAL2604

8 ........... 787208 BENCAL2642

8 ........... 787208 BENCAL4344

8 ........... 787208 BENCAL7699

8 ........... 787208 BENCAL9217

8 ........... 787208 J76954

8 ........... 787208 K11762

8 ........... 787208 K12737

8 ........... 787208 K12765

8 ........... 787208 L89874

8 ........... 787208 M41582

8 ........... 787208 M41586

8 ........... 787208 M41918

8 ........... 787208 M76995

8 ........... 787208 M77005

8 ........... 787208 M77119

8 ........... 787208 N06396

8 ........... 787208 N33501

8 ........... 787208 N33769

8 ........... 787208 N33774

8 ........... 787208 N33776

8 ........... 787208 N33784

8 ........... 787208 N34183

8 ........... 787208 N34207

8 ........... 787208 N89068

8 ........... 787208 N89079

8 ........... 787208 N89082

8 ........... 787208 N89087

8 ........... 787208 N89089

TABLE 1—Continued

Stage P/N S/N

8 ........... 787208 N89404

8 ........... 787208 N89409

8 ........... 787208 N89699

8 ........... 787208 N89702

8 ........... 787208 N89708

8 ........... 787208 N89895

8 ........... 787208 N89898

8 ........... 787208 N90251

8 ........... 787208 N90344

8 ........... 787208 N90990

8 ........... 787208 P43853

8 ........... 787208 P43872

8 ........... 787208 P43891

8 ........... 787208 P43956

8 ........... 787208 P43986

8 ........... 787208 P44338

8 ........... 787208 P45405

8 ........... 787208 R23233

8 ........... 787208 R23836

8 ........... 787208 R23873

8 ........... 787208 R24174

8 ........... 787208 R24227

8 ........... 787208 R24677

8 ........... 787208 R24739

8 ........... 787208 R24816

8 ........... 787208 R24824

8 ........... 787208 R91601

8 ........... 787208 R91825

8 ........... 787208 R91870

8 ........... 787208 R91947

8 ........... 787208 R92114

8 ........... 787208 R92308

8 ........... 787208 S07578

8 ........... 787208 S07629

8 ........... 787208 S07758

8 ........... 787208 S07768

8 ........... 787208 S07775

8 ........... 787208 S39269

8 ........... 787208 S39468

8 ........... 787208 S39513

8 ........... 787208 S39638

8 ........... 787208 S39655

8 ........... 787208 S39663

8 ........... 787208 S39753

8 ........... 787208 S39822

8 ........... 787208 S39837

8 ........... 787208 S39951

8 ........... 787208 S39973

8 ........... 787208 S39995

8 ........... 787208 S40027

8 ........... 787208 S40038

8 ........... 787208 S40077

8 ........... 787208 S40079

8 ........... 787208 S40095

8 ........... 789608 H03942

8 ........... 789608 J21516

8 ........... 792038 B228AA0039

8 ........... 792038 BENCAJ8836

8 ........... 797938 B228AA0487

8 ........... 797938 B228AA1034

8 ........... 797938 BENCAJ8910

8 ........... 797938 BENCAL5921

8 ........... 797938 N06290

8 ........... 797938 N33267

8 ........... 797938 N90703

8 ........... 797938 N90970

8 ........... 797938 S70436

8 ........... 797938 T03512

8 ........... 5005008–01 T03421

8 ........... 5005808–01 B228AA0052

8 ........... 5005808–01 B228AA0287

8 ........... 5005808–01 B228AA0405
Federal Register / Vol. 63, No. 94 / Friday, May 15, 1998 / Proposed Rules 27007

TABLE 1—Continued

Stage P/N S/N

8 ........... 5005808–01 B228AA0490

8 ........... 5005808–01 B228AA0519

8 ........... 5005808–01 BENCAH1577

8 ........... 5005808–01 L60763

8 ........... 5005808–01 M77630

8 ........... 5005808–01 N06193

8 ........... 5005808–01 N32395

8 ........... 5005808–01 N32524

8 ........... 5005808–01 N33073

8 ........... 5005808–01 N33304

8 ........... 5005808–01 N33466

8 ........... 5005808–01 N89447

8 ........... 5005808–01 N89464

8 ........... 5005808–01 P44800

8 ........... 5005808–01 P45226

8 ........... 5005808–01 R24458

8 ........... 5005808–01 R91359

8 ........... 5005808–01 R91787

8 ........... 5005808–01 S07967

8 ........... 5005808–01 S70327

8 ........... 5005808–01 S70429

8 ........... 5005808–01 S70463

8 ........... 5005808–01 S70494

8 ........... 5005808–01 S70520

8 ........... 5005808–01 T03317

8 ........... 5005808–01 T03452

8 ........... 5005808–01 T03476

8 ........... 5005808–01 T03506

8 ........... 5005808–01 T03549

8 ........... 5006008–01 R24001

9 ........... 701509 5A1936

9 ........... 701509 J89101

9 ........... 701509 L56782

9 ........... 701509 L85804

9 ........... 701509 M09404

9 ........... 701509 M73608

9 ........... 701509 M84236

9 ........... 701509 N02058

9 ........... 701509 N02998

9 ........... 701509 N209AA0242

9 ........... 701509 N209AA0246

9 ........... 701509 N209AA0323

9 ........... 701509 N209AA0418

9 ........... 701509 N209AA0634

9 ........... 701509 N22582

9 ........... 701509 N56942

9 ........... 701509 N56952

9 ........... 701509 N79878

9 ........... 701509 N97637

9 ........... 701509 N97707

9 ........... 701509 N98354

9 ........... 701509 N99323

9 ........... 701509 NENCAH0592

9 ........... 701509 NENCAH0697

9 ........... 701509 NENCAH0883

9 ........... 701509 NENCAH1173

9 ........... 701509 NENCAH1422

9 ........... 701509 NENCAH1432

9 ........... 701509 P11303

9 ........... 701509 P11463

9 ........... 701509 P12707

9 ........... 701509 P52176

9 ........... 701509 P52596

9 ........... 701509 P52608

9 ........... 701509 P97654

9 ........... 701509 P97704

9 ........... 701509 P98673

9 ........... 701509 R18109

9 ........... 701509 R18342

9 ........... 701509 R18385

9 ........... 701509 R45763

9 ........... 701509 R45850

TABLE 1—Continued

Stage P/N S/N

9 ........... 701509 R46297

9 ........... 701509 R46394

9 ........... 701509 R46403

9 ........... 701509 R72835

9 ........... 701509 R72839

9 ........... 701509 R72846

9 ........... 701509 R73002

9 ........... 701509 R74484

9 ........... 701509 S00704

9 ........... 701509 S00765

9 ........... 701509 S00824

9 ........... 701509 S00886

9 ........... 701509 S00909

9 ........... 701509 S00910

9 ........... 701509 S18837

9 ........... 701509 S18941

9 ........... 701509 S19027

9 ........... 701509 S50340

9 ........... 701509 S70059

9 ........... 701509 S77627

9 ........... 701509 S77671

9 ........... 701509 S77784

9 ........... 701509 S77809

9 ........... 701509 T18893

9 ........... 701509 T18909

9 ........... 701509 T27458

9 ........... 701509 T27587

9 ........... 739509 H17622

9 ........... 772509 K23758

9 ........... 772509 K24989

9 ........... 772509 K86136

9 ........... 772509 L15428

9 ........... 772509 M40393

9 ........... 772509 M40397

9 ........... 772509 N42380

9 ........... 772509 N56529

9 ........... 772509 N79955

9 ........... 772509 N79970

9 ........... 772509 N80784

9 ........... 772509 N96815

9 ........... 772509 N96816

9 ........... 772509 N96904

9 ........... 772509 N96905

9 ........... 772509 N97800

9 ........... 772509 N97806

9 ........... 772509 N99352

9 ........... 772509 N99353

9 ........... 772509 N99362

9 ........... 772509 N99367

9 ........... 772509 N99368

9 ........... 772509 N99376

9 ........... 772509 P11398

9 ........... 772509 P11407

9 ........... 772509 P11411

9 ........... 772509 P11414

9 ........... 772509 P11419

9 ........... 772509 P12231

9 ........... 772509 P76976

9 ........... 772509 P76987

9 ........... 772509 P76990

9 ........... 772509 P76992

9 ........... 772509 P76994

9 ........... 772509 R17787

9 ........... 772509 S01222

9 ........... 772509 S02183

9 ........... 772509 S50825

9 ........... 798509 AA0579

9 ........... 798509 B209AA0068

9 ........... 798509 B209AA0086

9 ........... 798509 B209AA0100

9 ........... 798509 B209AA0103

9 ........... 798509 B209AA0105

TABLE 1—Continued

Stage P/N S/N

9 ........... 798509 B209AA0185

9 ........... 798509 B209AA0261

9 ........... 798509 B209AA0304

9 ........... 798509 B209AA0364

9 ........... 798509 B209AA0420

9 ........... 798509 B209AA0429

9 ........... 798509 B209AA0434

9 ........... 798509 B209AA0461

9 ........... 798509 B209AA0518

9 ........... 798509 B209AA0542

9 ........... 798509 B209AA0551

9 ........... 798509 B209AA0619

9 ........... 798509 B209AA0632

9 ........... 798509 B209AA0649

9 ........... 798509 B209AA0707

9 ........... 798509 BENCAH2176

9 ........... 798509 BENCAJ6152

9 ........... 798509 BENCAJ9319

9 ........... 798509 BENCAJ9337

9 ........... 798509 BENCAJ9348

9 ........... 798509 BENCAJ9359

9 ........... 798509 BENCAJ9366

9 ........... 798509 BENCAK0166

9 ........... 798509 BENCAK4404

9 ........... 798509 BENCAK4409

9 ........... 798509 BENCAL0725

9 ........... 798509 BENCAL2575

9 ........... 798509 BENCAL4022

9 ........... 798509 BENCAL6238

9 ........... 798509 N03324

9 ........... 798509 N42399

9 ........... 798509 N42401

9 ........... 798509 N56700

9 ........... 798509 N97809

9 ........... 798509 N99501

9 ........... 798509 P53159

9 ........... 798509 P77576

9 ........... 798509 R72583

9 ........... 798509 R73591

9 ........... 798509 R74285

9 ........... 798509 S02121

9 ........... 798509 S02165

9 ........... 798509 S79341

9 ........... 798509 S79364

9 ........... 798509 S79409

9 ........... 798509 S79414

9 ........... 798509 S94376

9 ........... 798509 S94384

9 ........... 798509 S94391

10 ......... 770510 G80186

10 ......... 772510 B210AA0003

10 ......... 772510 B210AA0024

10 ......... 772510 B210AA0062

10 ......... 772510 B210AA0128

10 ......... 772510 B210AA0263

10 ......... 772510 B210AA0339

10 ......... 772510 B210AA0398

10 ......... 772510 B210AA0520

10 ......... 772510 B210AA0538

10 ......... 772510 B210AA0549

10 ......... 772510 B210AA0563

10 ......... 772510 B210AA0619

10 ......... 772510 B210AA0684

10 ......... 772510 B210AA0727

10 ......... 772510 B210AA0744

10 ......... 772510 B210AA0785

10 ......... 772510 B210AA0860

10 ......... 772510 B210AA0862

10 ......... 772510 B210AA0956

10 ......... 772510 B210AA0984

10 ......... 772510 B210AA1073

10 ......... 772510 B210AA1081
27008 Federal Register / Vol. 63, No. 94 / Friday, May 15, 1998 / Proposed Rules

TABLE 1—Continued

Stage P/N S/N

10 ......... 772510 B210AA1137

10 ......... 772510 BENCAH1958

10 ......... 772510 BENCAH2165

10 ......... 772510 BENCAH2280

10 ......... 772510 BENCAJ5741

10 ......... 772510 BENCAJ9159

10 ......... 772510 BENCAJ9705

10 ......... 772510 BENCAJ9757

10 ......... 772510 BENCAJ9767

10 ......... 772510 BENCAJ9773

10 ......... 772510 BENCAJ9805

10 ......... 772510 BENCAK4597

10 ......... 772510 BENCAK5154

10 ......... 772510 BENCAK5350

10 ......... 772510 BENCAK5735

10 ......... 772510 BENCAK5773

10 ......... 772510 BENCAK6465

10 ......... 772510 BENCAK9082

10 ......... 772510 BENCAK9123

10 ......... 772510 BENCAK9429

10 ......... 772510 BENCAK9434

10 ......... 772510 BENCAL1600

10 ......... 772510 BENCAL1635

10 ......... 772510 BENCAL2434

10 ......... 772510 BENCAL3279

10 ......... 772510 BENCAL5558

10 ......... 772510 BENCAL6141

10 ......... 772510 BENCAL6373

10 ......... 772510 H17769

10 ......... 772510 H32904

10 ......... 772510 H34713

10 ......... 772510 H57950

10 ......... 772510 H76378

10 ......... 772510 K56398

10 ......... 772510 K66132

10 ......... 772510 K86040

10 ......... 772510 L15008

10 ......... 772510 L32061

10 ......... 772510 L55910

10 ......... 772510 L56859

10 ......... 772510 L86006

10 ......... 772510 M10588

10 ......... 772510 M10987

10 ......... 772510 M39587

10 ......... 772510 M39591

10 ......... 772510 M49011

10 ......... 772510 M49358

10 ......... 772510 M49359

10 ......... 772510 M73918

10 ......... 772510 M86490

10 ......... 772510 N02251

10 ......... 772510 N02274

10 ......... 772510 N11091

10 ......... 772510 N22833

10 ......... 772510 N42134

10 ......... 772510 N56280

10 ......... 772510 N57181

10 ......... 772510 N57382

10 ......... 772510 N57418

10 ......... 772510 N57437

10 ......... 772510 N80225

10 ......... 772510 N80703

10 ......... 772510 N80716

10 ......... 772510 N80718

10 ......... 772510 N81110

10 ......... 772510 N81114

10 ......... 772510 N81474

10 ......... 772510 N97025

10 ......... 772510 N97067

10 ......... 772510 N97527

10 ......... 772510 N97553

10 ......... 772510 N97574

TABLE 1—Continued

Stage P/N S/N

10 ......... 772510 N97591

10 ......... 772510 N97832

10 ......... 772510 N98539

10 ......... 772510 N98750

10 ......... 772510 N98764

10 ......... 772510 N98768

10 ......... 772510 N98798

10 ......... 772510 P11004

10 ......... 772510 P11017

10 ......... 772510 P11029

10 ......... 772510 P11039

10 ......... 772510 P11087

10 ......... 772510 P11094

10 ......... 772510 P11101

10 ......... 772510 P11562

10 ......... 772510 P11575

10 ......... 772510 P11834

10 ......... 772510 P12009

10 ......... 772510 P12612

10 ......... 772510 P12615

10 ......... 772510 P12645

10 ......... 772510 P12648

10 ......... 772510 P51452

10 ......... 772510 P51454

10 ......... 772510 P51833

10 ......... 772510 P51883

10 ......... 772510 P52238

10 ......... 772510 P53116

10 ......... 772510 P53207

10 ......... 772510 P53327

10 ......... 772510 P76886

10 ......... 772510 P76891

10 ......... 772510 P77070

10 ......... 772510 P77161

10 ......... 772510 P77180

10 ......... 772510 P77423

10 ......... 772510 P77618

10 ......... 772510 P77663

10 ......... 772510 P77668

10 ......... 772510 P77744

10 ......... 772510 P77752

10 ......... 772510 P97017

10 ......... 772510 P98117

10 ......... 772510 P98258

10 ......... 772510 P98840

10 ......... 772510 R18022

10 ......... 772510 R18124

10 ......... 772510 R18611

10 ......... 772510 R18665

10 ......... 772510 R19275

10 ......... 772510 R46329

10 ......... 772510 R46679

10 ......... 772510 R72606

10 ......... 772510 R72615

10 ......... 772510 R72617

10 ......... 772510 R72874

10 ......... 772510 R73345

10 ......... 772510 R74396

10 ......... 772510 S01267

10 ......... 772510 S01277

10 ......... 772510 S01369

10 ......... 772510 S01501

10 ......... 772510 S01631

10 ......... 772510 S01680

10 ......... 772510 S19280

10 ......... 772510 S19293

10 ......... 772510 S19294

10 ......... 772510 S19298

10 ......... 772510 S19328

10 ......... 772510 S19440

10 ......... 772510 S19447

10 ......... 772510 S19458

TABLE 1—Continued

Stage P/N S/N

10 ......... 772510 S19467

10 ......... 772510 S19486

10 ......... 772510 S19512

10 ......... 772510 S51089

10 ......... 772510 S51144

10 ......... 772510 S51176

10 ......... 772510 S51210

10 ......... 772510 S78237

10 ......... 772510 S78294

10 ......... 772510 S78298

10 ......... 772510 S78318

10 ......... 772510 S78439

10 ......... 772510 S78464

10 ......... 772510 S78511

10 ......... 772510 S78623

10 ......... 772510 S78642

10 ......... 772510 S78724

10 ......... 772510 T19014

10 ......... 772510 T19091

10 ......... 772510 T19152

10 ......... 772510 T19169

10 ......... 772510 T28070

10 ......... 772510 T28091

10 ......... 772510 T28136

10 ......... 772510 T28138

10 ......... 772510 T49026

10 ......... 772510 T49044

10 ......... 772510 T49055

10 ......... 772510 T49068

10 ......... 772510 T49089

11 ......... 701411 G29388

11 ......... 701411 G43952

11 ......... 769611 H16901

11 ......... 772511 AA0065

11 ......... 772511 B211AA0047

11 ......... 772511 B211AA0157

11 ......... 772511 B211AA0171

11 ......... 772511 B211AA0263

11 ......... 772511 B211AA0301

11 ......... 772511 B211AA0349

11 ......... 772511 B211AA0356

11 ......... 772511 B211AA0517

11 ......... 772511 B211AA0529

11 ......... 772511 B211AA0599

11 ......... 772511 B211AA0622

11 ......... 772511 B211AA0624

11 ......... 772511 B211AA0705

11 ......... 772511 B211AA0798

11 ......... 772511 B211AA0823

11 ......... 772511 B211AA0945

11 ......... 772511 B211AA1004

11 ......... 772511 B211AA1107

11 ......... 772511 B211AA1166

11 ......... 772511 B211AA1212

11 ......... 772511 B211AA1292

11 ......... 772511 B211AA1360

11 ......... 772511 BENCAH0264

11 ......... 772511 BENCAH2171

11 ......... 772511 BENCAH5424

11 ......... 772511 BENCAJ8130

11 ......... 772511 BENCAK0910

11 ......... 772511 BENCAK7121

11 ......... 772511 BENCAK7336

11 ......... 772511 BENCAK7407

11 ......... 772511 BENCAK7412

11 ......... 772511 BENCAK7417

11 ......... 772511 BENCAK7523

11 ......... 772511 BENCAL2881

11 ......... 772511 BENCAL2959

11 ......... 772511 BENCAL3030

11 ......... 772511 H58238

11 ......... 772511 H99450
Federal Register / Vol. 63, No. 94 / Friday, May 15, 1998 / Proposed Rules 27009

TABLE 1—Continued

Stage P/N S/N

11 ......... 772511 J24528

11 ......... 772511 J68900

11 ......... 772511 J88334

11 ......... 772511 K24665

11 ......... 772511 K35705

11 ......... 772511 K85911

11 ......... 772511 L15671

11 ......... 772511 L30512

11 ......... 772511 L84603

11 ......... 772511 L84967

11 ......... 772511 M11198

11 ......... 772511 M11208

11 ......... 772511 M40116

11 ......... 772511 M49492

11 ......... 772511 M49540

11 ......... 772511 M49551

11 ......... 772511 M61349

11 ......... 772511 M61810

11 ......... 772511 M61821

11 ......... 772511 M61827

11 ......... 772511 M73414

11 ......... 772511 M86423

11 ......... 772511 M86943

11 ......... 772511 M87075

11 ......... 772511 N02874

11 ......... 772511 N03522

11 ......... 772511 N21358

11 ......... 772511 N22738

11 ......... 772511 N41160

11 ......... 772511 N41282

11 ......... 772511 N41646

11 ......... 772511 N41748

11 ......... 772511 N42587

11 ......... 772511 N42774

11 ......... 772511 N56399

11 ......... 772511 N56596

11 ......... 772511 N57323

11 ......... 772511 N57878

11 ......... 772511 N57899

11 ......... 772511 N57939

11 ......... 772511 N57953

11 ......... 772511 N80541

11 ......... 772511 N80554

11 ......... 772511 N80580

11 ......... 772511 N81408

11 ......... 772511 N93700

11 ......... 772511 N96929

11 ......... 772511 N96947

11 ......... 772511 N96955

11 ......... 772511 N97354

11 ......... 772511 N97368

11 ......... 772511 N97956

11 ......... 772511 N97977

11 ......... 772511 N98242

11 ......... 772511 N98245

11 ......... 772511 N98573

11 ......... 772511 N98587

11 ......... 772511 N98612

11 ......... 772511 N98949

11 ......... 772511 N98963

11 ......... 772511 N98974

11 ......... 772511 N98976

11 ......... 772511 N98981

11 ......... 772511 N98985

11 ......... 772511 N99526

11 ......... 772511 N99535

11 ......... 772511 N99551

11 ......... 772511 N99553

11 ......... 772511 N99564

11 ......... 772511 N99590

11 ......... 772511 P03620

11 ......... 772511 P11615

TABLE 1—Continued

Stage P/N S/N

11 ......... 772511 P11637

11 ......... 772511 P11959

11 ......... 772511 P11981

11 ......... 772511 P12385

11 ......... 772511 P12387

11 ......... 772511 P12399

11 ......... 772511 P12743

11 ......... 772511 P12777

11 ......... 772511 P12930

11 ......... 772511 P51979

11 ......... 772511 P52109

11 ......... 772511 P52732

11 ......... 772511 P52903

11 ......... 772511 P52910

11 ......... 772511 P76731

11 ......... 772511 P76820

11 ......... 772511 P76832

11 ......... 772511 P76857

11 ......... 772511 P77637

11 ......... 772511 P77642

11 ......... 772511 P97786

11 ......... 772511 R05382

11 ......... 772511 R05539

11 ......... 772511 R05747

11 ......... 772511 R29690

11 ......... 772511 R29884

11 ......... 772511 R30070

11 ......... 772511 R30119

11 ......... 772511 R30137

11 ......... 772511 R30157

11 ......... 772511 R30194

11 ......... 772511 R30226

11 ......... 772511 R30258

11 ......... 772511 R30313

11 ......... 772511 R30429

11 ......... 772511 R30504

11 ......... 772511 R30534

11 ......... 772511 R30617

11 ......... 772511 R30625

11 ......... 772511 R30808

11 ......... 772511 R30810

11 ......... 772511 R30906

11 ......... 772511 R30941

11 ......... 772511 R30993

11 ......... 772511 R31009

11 ......... 772511 R31035

11 ......... 772511 R31073

11 ......... 772511 R31118

11 ......... 772511 R46248

11 ......... 772511 R46361

11 ......... 772511 S03667

11 ......... 772511 S03741

11 ......... 772511 S03745

11 ......... 772511 S03805

11 ......... 772511 S04156

11 ......... 772511 S04451

11 ......... 772511 S04460

11 ......... 772511 S04473

11 ......... 772511 S04542

11 ......... 772511 S04543

11 ......... 772511 S04557

11 ......... 772511 S04564

11 ......... 772511 S04582

11 ......... 772511 S04649

11 ......... 772511 S80373

11 ......... 772511 S80389

11 ......... 772511 S80465

11 ......... 772511 S80547

11 ......... 772511 S80588

11 ......... 772511 S80617

11 ......... 772511 S80682

11 ......... 772511 S80740

TABLE 1—Continued

Stage P/N S/N

11 ......... 772511 S80765

11 ......... 772511 T22044

11 ......... 772511 T22052

11 ......... 772511 T22099

11 ......... 772511 T22202

11 ......... 772511 T22236

11 ......... 772511 T22261

11 ......... 772511 T22353

11 ......... 772511 T22378

11 ......... 772511 T22395

11 ......... 772511 T22405

11 ......... 772511 T22521

11 ......... 772511 T22533

11 ......... 772511 T22593

11 ......... 772511 T22608

11 ......... 772511 T22653

11 ......... 772511 T22797

11 ......... 772511 T22835

11 ......... 772511 T22873

11 ......... 772511 T22895

11 ......... 772511 T22949

11 ......... 772511 T23006

12 ......... 717312 2B1946

12 ......... 717312 3A7441

12 ......... 772512 B212AA0565

12 ......... 772512 B212AA0864

12 ......... 772512 H58261

12 ......... 772512 H58448

12 ......... 772512 J23046

12 ......... 772512 J68527

12 ......... 772512 J89283

12 ......... 772512 K04097

12 ......... 772512 K23952

12 ......... 772512 K23992

12 ......... 772512 K35819

12 ......... 772512 K55628

12 ......... 772512 K55951

12 ......... 772512 K56079

12 ......... 772512 K66470

12 ......... 772512 K66500

12 ......... 772512 K86442

12 ......... 772512 K86447

12 ......... 772512 L15502

12 ......... 772512 L30899

12 ......... 772512 L31589

12 ......... 772512 L32003

12 ......... 772512 L56276

12 ......... 772512 L56294

12 ......... 772512 L56303

12 ......... 772512 L56308

12 ......... 772512 L56886

12 ......... 772512 L85095

12 ......... 772512 L86236

12 ......... 772512 M10233

12 ......... 772512 M10966

12 ......... 772512 M40081

12 ......... 772512 M49574

12 ......... 772512 M49665

12 ......... 772512 M73392

12 ......... 772512 M84838

12 ......... 772512 N02466

12 ......... 772512 N03990

12 ......... 772512 N21261

12 ......... 772512 N22069

12 ......... 772512 N22894

12 ......... 772512 N41128

12 ......... 772512 N41249

12 ......... 772512 N41717

12 ......... 772512 N42236

12 ......... 772512 N42871

12 ......... 772512 N56325

12 ......... 772512 N57451
27010 Federal Register / Vol. 63, No. 94 / Friday, May 15, 1998 / Proposed Rules

TABLE 1—Continued

Stage P/N S/N

12 ......... 772512 N58072

12 ......... 772512 N58127

12 ......... 772512 N80601

12 ......... 772512 N81044

12 ......... 772512 N81173

12 ......... 772512 N81187

12 ......... 772512 N97079

12 ......... 772512 N97083

12 ......... 772512 N97109

12 ......... 772512 N97384

12 ......... 772512 N97438

12 ......... 772512 N97455

12 ......... 772512 N97457

12 ......... 772512 N97893

12 ......... 772512 N97916

12 ......... 772512 N98152

12 ......... 772512 N98162

12 ......... 772512 N98654

12 ......... 772512 N98657

12 ......... 772512 N98680

12 ......... 772512 N98691

12 ......... 772512 N99016

12 ......... 772512 N99025

12 ......... 772512 N99049

12 ......... 772512 N99057

12 ......... 772512 N99094

12 ......... 772512 N99125

12 ......... 772512 P11154

12 ......... 772512 P11179

12 ......... 772512 P11183

12 ......... 772512 P11193

12 ......... 772512 P11252

12 ......... 772512 P11678

12 ......... 772512 P11699

12 ......... 772512 P11877

12 ......... 772512 P11879

12 ......... 772512 P11909

12 ......... 772512 P12244

12 ......... 772512 P12277

12 ......... 772512 P12493

12 ......... 772512 P12519

12 ......... 772512 P51414

12 ......... 772512 P52139

12 ......... 772512 P52409

12 ......... 772512 P52520

12 ......... 772512 P52871

12 ......... 772512 P53141

12 ......... 772512 P53351

12 ......... 772512 P53396

12 ......... 772512 P72298

12 ......... 772512 P76702

12 ......... 772512 P76921

12 ......... 772512 P76931

12 ......... 772512 P77096

12 ......... 772512 P77294

12 ......... 772512 P77338

12 ......... 772512 P77695

12 ......... 772512 P77796

12 ......... 772512 P78510

12 ......... 772512 P97315

12 ......... 772512 R17703

12 ......... 772512 R17746

12 ......... 772512 R18201

12 ......... 772512 R18319

12 ......... 772512 R18589

12 ......... 772512 R19042

12 ......... 772512 R45067

12 ......... 772512 R45829

12 ......... 772512 R46100

12 ......... 772512 R46108

12 ......... 772512 R46121

12 ......... 772512 R46707

TABLE 1—Continued

Stage P/N S/N

12 ......... 772512 R52615

12 ......... 772512 R72811

12 ......... 772512 R73024

12 ......... 772512 R73783

12 ......... 772512 R74357

12 ......... 772512 S01858

12 ......... 772512 S01860

12 ......... 772512 S01914

12 ......... 772512 S01923

12 ......... 772512 S01949

12 ......... 772512 S01969

12 ......... 772512 S01971

12 ......... 772512 S01980

12 ......... 772512 S01994

12 ......... 772512 S02002

12 ......... 772512 S02007

12 ......... 772512 S19593

12 ......... 772512 S19644

12 ......... 772512 S19843

12 ......... 772512 S51370

12 ......... 772512 S51437

12 ......... 772512 S51514

12 ......... 772512 S51519

12 ......... 772512 S51560

12 ......... 772512 S51571

12 ......... 772512 S78825

12 ......... 772512 S78841

12 ......... 798512 B212AA0009

12 ......... 798512 B212AA0045

12 ......... 798512 B212AA0051

12 ......... 798512 B212AA0060

12 ......... 798512 B212AA0073

12 ......... 798512 B212AA0077

12 ......... 798512 B212AA0082

12 ......... 798512 B212AA0142

12 ......... 798512 B212AA0155

12 ......... 798512 B212AA0290

12 ......... 798512 B212AA0293

12 ......... 798512 B212AA0361

12 ......... 798512 B212AA0428

12 ......... 798512 B212AA0586

12 ......... 798512 B212AA0618

12 ......... 798512 B212AA0647

12 ......... 798512 B212AA0735

12 ......... 798512 B212AA0747

12 ......... 798512 B212AA0942

12 ......... 798512 B212AA0974

12 ......... 798512 B212AA1031

12 ......... 798512 B212AA1062

12 ......... 798512 B212AA1098

12 ......... 798512 B212AA1173

12 ......... 798512 BENCAH1931

12 ......... 798512 BENCAH4104

12 ......... 798512 BENCAJ4925

12 ......... 798512 BENCAJ6158

12 ......... 798512 BENCAJ7821

12 ......... 798512 BENCAJ8115

12 ......... 798512 BENCAJ9478

12 ......... 798512 BENCAJ9497

12 ......... 798512 BENCAJ9503

12 ......... 798512 BENCAJ9530

12 ......... 798512 BENCAJ9617

12 ......... 798512 BENCAJ9673

12 ......... 798512 BENCAK0455

12 ......... 798512 BENCAK2377

12 ......... 798512 BENCAK4552

12 ......... 798512 BENCAK5787

12 ......... 798512 BENCAK8605

12 ......... 798512 BENCAK9227

12 ......... 798512 BENCAL1655

12 ......... 798512 BENCAL2487

12 ......... 798512 BENCAL4173

TABLE 1—Continued

Stage P/N S/N

12 ......... 798512 BENCAL6328

12 ......... 798512 BENCAL6602

12 ......... 798512 M86993

12 ......... 798512 N42703

12 ......... 798512 N42708

12 ......... 798512 N57617

12 ......... 798512 N57629

12 ......... 798512 N80087

12 ......... 798512 N80088

12 ......... 798512 N98138

12 ......... 798512 N99136

12 ......... 798512 N99144

12 ......... 798512 P53305

12 ......... 798512 P76909

12 ......... 798512 P76916

12 ......... 798512 P77722

12 ......... 798512 P78317

12 ......... 798512 R17334

12 ......... 798512 R46556

12 ......... 798512 R46562

12 ......... 798512 R73201

12 ......... 798512 R74214

12 ......... 798512 S02217

12 ......... 798512 S02254

12 ......... 798512 S51853

12 ......... 798512 S79575

12 ......... 798512 S94530

12 ......... 798512 S94534

12 ......... 798512 S94538

12 ......... 798512 S94539

12 ......... 798512 S94569

12 ......... 798512 S94579

12 ......... 798512 S94590

12 ......... 798512 S94615

12 ......... 798512 T19187

12 ......... 798512 T19213

12 ......... 798512 T19220

12 ......... 798512 T19242

12 ......... 798512 T19277

12 ......... 798512 T19292

12 ......... 798512 T19314

12 ......... 798512 T28638

12 ......... 798512 T43059

(b) For the purpose of this AD, a shop visit

is defined as an engine removal, where

engine maintenance entails separation of

pairs of major mating engine flanges or the

removal of a disk, hub, or spool regardless of

other planned maintenance except where the

maintenance performed is being done in lieu

of performing the maintenance on wing.

(c) The accomplishment of the inspections

and repairs specified in this AD must be

performed at GE Engine Services—Dallas,

LP., certificate number RA1R445K of Dallas,

Texas. Operators wishing to use another

facility to perform the required inspections

and repairs must apply for an alternative

method of compliance in accordance with

paragraph (e) of this AD.

(d) Report the following information on a

monthly basis to the Manager of the Engine

Certification Office, FAA, 12 New England

Executive Park, Burlington, MA 01803–5299;

fax (781) 238–7199, Internet:

Mark.C.Fulmer@faa.dot.gov. Reporting

requirements have been approved by the

Office of Management and Budget and

assigned OMB control number 2120–0056:

(1) S/N of engines inspected in accordance

with paragraph (a) of this AD.
Federal Register / Vol. 63, No. 94 / Friday, May 15, 1998 / Proposed Rules 27011

(2) S/N of engines found with arc burns

and approximate size of the arc burn.

(3) S/N of engines repaired in accordance

with paragraph (a) of this AD.

(4) Hours and CIS since last shop visit and

total hours and CIS of disks inspected in

accordance with paragraph (a) of this AD.

(5) Report to the Manager of the Engine

Certification Office, within two business days

of finding one of the following conditions as

a result of inspecting a disk in accordance

with paragraph (a) of this AD:

(i) A crack depth of more than 5 mils.

(ii) More than 2 tie rod holes with cracks.

(iii) Arc burn depth beyond 9 mils.

(e) 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. Operators shall submit

their request 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 from the Engine

Certification Office.

(f) 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 inspection requirements

of this AD can be accomplished.

Issued in Burlington, Massachusetts, on

May 7, 1998.

Thomas A. Boudreau,

Acting Manager, Engine and Propeller

Directorate, Aircraft Certification Service.

[FR Doc. 98–12918 Filed 5–14–98; 8:45 am]

BILLING CODE 4910–13–U

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. 97–SW–61–AD]

Airworthiness Directives; McDonnell

Douglas Helicopter Systems Model

369D, 369E, 369FF, 369H, MD500N, and

MD600N Helicopters

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

McDonnell Douglas Helicopter Systems

(MDHS) Model 369D, 369E, 369FF,

369H, MD500N, and MD600N

helicopters. This proposal would

require a one-time visual inspection of

certain input shaft coupling assemblies

for pitting. This proposal is prompted

by three operators’ reports of

discovering pitting on the internal

spline teeth. The actions specified by

the proposed AD are intended to

prevent failure of the spline teeth in the

input shaft coupling assembly, loss of

drive to the main rotor system, and

subsequent loss of control of the

helicopter.

DATES: Comments must be received by

July 14, 1998.

ADDRESSES: Submit comments in

triplicate to the Federal Aviation

Administration (FAA), Office of the

Regional Counsel, Southwest Region,

Attention: Rules Docket No. 97–SW–61–

AD, 2601 Meacham Blvd., Room 663,

Fort Worth, Texas 76137. Comments

may be inspected at this location

between 9:00 a.m. and 3:00 p.m.,

Monday through Friday, except Federal

holidays.

FOR FURTHER INFORMATION CONTACT: Mr.

Bruce Conze, Aerospace Engineer, Los

Angeles Aircraft Certification Office,

3960 Paramount Blvd., Lakewood,

California, 90712, telephone (562) 627–

5261, fax (562) 627–5210.

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 No. 97–SW–61–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, Office of the Regional Counsel,

Southwest Region, Attention: Rules

Docket No. 97–SW–61–AD, 2601

Meacham Blvd., Room 663, Fort Worth,

Texas 76137.

Discussion

This document proposes the adoption

of a new airworthiness directive (AD)

that is applicable to MDHS Model 369D,

369E, 369FF, 369H, MD500N, and

MD600N helicopters. This proposal

would require a one-time visual

inspection of certain input shaft

coupling assemblies for pitting below

the solid film lubricant layer in the

spline area. This proposal is prompted

by three operators’ reports of

discovering pitting on the internal

spline teeth. The actions specified by

the proposed AD are intended to

prevent failure of the spline teeth in the

input shaft coupling assembly, loss of

drive to the main rotor system, and

subsequent loss of control of the

helicopter.

Since an unsafe condition has been

identified that is likely to exist or

develop on other MDHS Model 369D,

369E, 369FF, 369H, MD500N, and

MD600N helicopters of the same type

design, the proposed AD would require

a one-time visual inspection of affected

input shaft coupling assemblies for

pitting below the solid film lubricant

layer in the spline area.

The FAA estimates that 82 helicopters

of U.S. registry would be affected by this

proposed AD, that it would take

approximately 3 work hours per

helicopter to accomplish the proposed

actions, and that the average labor rate

is $60 per work hour. Required parts

would cost approximately $638 per

coupling assembly. Based on these

figures, the total cost impact of the

proposed AD on U.S. operators is

estimated to be $67,076 if the coupling

assembly is replaced in all 82

helicopters.

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’’