12774 Federal Register / Vol. 62, No. 52 / Tuesday, March 18, 1997 / Proposed Rules

(2) If any signs of fuel leakage or relative

movement between the nuts and hinge fitting

are found, prior to further flight, resecure the

MLG hinge fitting to auxiliary spar in

accordance with actions 3.8 through 3.15 of

British Aerospace MSB No. 7/5.

(b) Upon accumulating 4,000 landings or

within the next 50 landings after the effective

date of this AD, whichever occurs later, and

thereafter at intervals not to exceed 400

landings, inspect the MLG hinge support

angles for cracks in accordance with the

following, as applicable:

(1) For the HP137 Mk1 and Jetstream series

200 airplanes: British Aerospace MSB 7/8,

which incorporates the following effective

pages:

Pages Revision

level Date

2, 5, 6, 7,

and 8.

Revision 2 .. January 6,

1983.

1, 3, and 4 Revision 3 .. May 23, 1988.

(2) For the Jetstream Model 3101 airplanes:

Jetstream Alert Service Bulletin (ASB) 32–A–

JA 850127, which incorporates the following

effective pages:

Pages Revision

level Date

5 through 14 Original

Issue.

April 17, 1985.

1 through 4 Revision 2 .. November 11,

1994.

(c) Install improved design MLG fittings,

part number (P/N) 1379133B1 and

1379133B2 (Modification 5218). Perform this

installation at the compliance time

(presented in paragraphs (c)(1) and (c)(2) of

this AD) which occurs first. Accomplish this

installation in accordance with Jetstream

Service Bulletin (SB) 57–JM 5218, which

incorporates the following effective pages:

Pages Revision

level Date

3, 5, 6, 7, 8,

9, 11, 12,

17, 18,

19, 21,

22, 23,

24, 27,

28, 29,

30, and

31.

Revision 1 .. September 29,

1987.

25 and 26 ... Revision 2 .. August 24,

1988.

10 and 20 ... Revision 3 .. January 29,

1990.

1, 2, 4, 13,

14, 15,

and 16.

Revision 4 .. October 31,

1990.

(1) Prior to further flight after finding any

crack during an inspection required by

paragraph (b) of this AD; or

(2) Upon accumulating 20,000 landings or

within the next 50 landings after the effective

date of this AD (whichever occurs later).

(d) Incorporating Modification 5218 as

required by paragraph (c) of this AD

terminates the repetitive inspection

requirement of this AD (paragraphs (a) and

(b) of this AD).

(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 airplane to

a location where the requirements of this AD

can be accomplished.

(f) An alternative method of compliance or

adjustment of the initial or repetitive

compliance times that provides an equivalent

level of safety may be approved by the

Manager, Brussels Aircraft Certification

Division, Europe, Africa, Middle East office,

FAA, c/o American Embassy, 1000 Brussels,

Belgium. The request should be forwarded

through an appropriate FAA Maintenance

Inspector, who may add comments and then

send it to the Manager, Brussels Aircraft

Certification Division. Alternative methods of

compliance approved in accordance with AD

82–20–04 R1 (superseded by this action) are

not considered approved as alternative

methods of compliance with this AD.

Note 3: Information concerning the

existence of approved alternative methods of

compliance with this AD, if any, may be

obtained from the Brussels Aircraft

Certification Division.

(g) All persons affected by this directive

may obtain copies of the document referred

to herein upon request to Jetstream Aircraft

Limited, Manager Product Support,

Prestwick Airport, Ayrshire, KA9 2RW

Scotland; or Jetstream Aircraft Inc., Librarian,

P.O. Box 16029, Dulles International Airport,

Washington, DC; or may examine this

document at the FAA, Central Region, Office

of the Assistant Chief Counsel, Room 1558,

601 E. 12th Street, Kansas City, Missouri

64106.

(h) This amendment supersedes AD 82–

20–04 R1, Amendment 39–4468.

Issued in Kansas City, Missouri, on March

10, 1997.

Michael Gallagher,

Small Airplane Directorate, Aircraft

Certification Service.

[FR Doc. 97–6716 Filed 3–17–97; 8:45 am]

BILLING CODE 4910–13–U

14 CFR Part 39

[Docket No. 97–ANE–03]

RIN 2120–AA64

Airworthiness Directives; AlliedSignal

Inc. TSCP700–4B and –5 Auxiliary

Power Units

AGENCY: Federal Aviation

Administration, DOT.

ACTION: Notice of proposed rulemaking

(NPRM).

SUMMARY: This document proposes the

supersedure of an existing airworthiness

directive (AD), applicable to

AlliedSignal Inc. (formerly AirResearch

and Garrett) TSCP700–4B and –5 Series

Auxiliary Power Units, that currently

requires restretching the first stage low

pressure compressor (LPC) tie rods, or

replacing affected disks at or before

8,000 cycles since new (CSN). This

action would eliminate the option of

restretching the tie rods, and would

require removing from service affected

disks, replacing them with serviceable

parts, and establishing a life limit of

8,000 CSN for affected disks. This

proposal is prompted by a report of a

first stage LPC disk rim separation due

to low cycle fatigue on an APU that had

its tie rods restretched in accordance

with the current AD. The actions

specified by the proposed AD are

intended to prevent first stage LPC disk

rim separation due to low cycle fatigue,

which could result in an uncontained

APU failure and damage to the aircraft.

DATES: Comments must be received by

May 19, 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.

97–ANE–03, 12 New England Executive

Park, Burlington, MA 01803–5299.

Comments may also be sent via the

Internet using the following address: ‘‘9-

ad-engineprop@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

AlliedSignal Aerospace, Attn: Data

Distribution, M/S 64–3/2101–201, P.O.

Box 29003, Phoenix, AZ 85038–9003;

telephone (602) 365–2493, fax (602)

365–5577. This information may be

examined at the FAA, New England

Region, Office of the Assistant Chief

Counsel, 12 New England Executive

Park, Burlington, MA.

FOR FURTHER INFORMATION CONTACT:

Robert Baitoo, Aerospace Engineer, Los

Angeles Aircraft Certification Office,

FAA, Transport Airplane Directorate,

3960 Paramount Blvd., Lakewood, CA

90712–4137; telephone (310) 627–5245;

fax (310) 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
Federal Register / Vol. 62, No. 52 / Tuesday, March 18, 1997 / Proposed Rules 12775

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–03.’’ 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. 97–ANE–03, 12 New

England Executive Park, Burlington, MA

01803-5299.

Discussion

On October 31, 1988, the Federal

Aviation Administration (FAA) issued

airworthiness directive AD 88–24–07,

Amendment 39–6062 (53 FR 46439,

November 17, 1988), applicable to

AlliedSignal Inc. (formerly AirResearch

and Garrett) TSCP700–4B and –5 series

auxiliary power units (APUs), to require

restretching the tie rods, or replacing

affected disks at or before 8,000 cycles

since new (CSN). That action was

prompted by reports of compressor tie

rod separation in the event of disk rim

separation. That condition, if not

corrected, could result in compressor tie

rod separation in the event of disk rim

separation, which could result in an

uncontained APU failure and damage to

the aircraft.

Since the issuance of that AD, the

FAA has received a report that a first

stage LPC disk, installed on an APU

with restretched tie rods in accordance

with AD 88–24–07, experienced an

uncontained disk rim separation at

9,408 CSN and caused aircraft damage.

The FAA has therefore determined that

it is necessary to eliminate the tie rod

restretching option and institute the life

limit of 8,000 CSN for all affected disks.

The FAA has reviewed and approved

the technical contents of AlliedSignal

Service Bulletin (SB) No. TSCP700–49–

7266, dated June 16, 1996, that

describes procedures for calculating

when to remove from service affected

disks, and describes procedures for

removing from service affected disks,

and replacing them with serviceable

parts.

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

supersede AD 88–24–07 to eliminate the

option of restretching the tie rods, and

require removing from service affected

disks in accordance with a schedule

derived from calculations in the SB,

replacing affected disks with serviceable

parts, and establishing a life limit of

8,000 CSN for affected disks.

The FAA estimates that 100 APUs

installed on aircraft of U.S. registry

would be affected by this proposed AD,

that it would take no additional work

hours per APU to accomplish the

proposed actions if the actions are

accomplished during APU overhaul, 8

work hours to accomplish the proposed

actions if the actions are not

accomplished during APU overhaul,

and that the average labor rate is $60 per

work hour. Based on these figures, and

that the work would not be performed

during overhaul, the total cost impact of

the proposed AD on U.S. operators is

estimated to be $48,000.

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

removing amendment 39–6062 (53 FR

46439, November 17, 1988) and by

adding a new airworthiness directive to

read as follows:

AlliedSignal Inc.: Docket No. 97–ANE–03.

Supersedes AD 88–24–07, Amendment

39–6062.

Applicability: AlliedSignal Inc. (formerly

AirResearch and Garrett) TSCP700–4B and

–5 auxiliary power units (APUs), with first

stage low pressure compressor (LPC) disks,

Part Number (P/N) 3606429–1, installed on

but not limited to Airbus A300 series, and

McDonnell Douglas DC–10 and KC–10

(military) series aircraft.

Note 1: This airworthiness directive (AD)

applies to each APU 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 APUs 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 first stage LPC disk rim

separation due to low cycle fatigue, which

could result in an uncontained APU failure

and damage to the aircraft, accomplish the

following:

(a) Remove from service first stage LPC

disks, P/N 3606429–1, in accordance with

the schedule derived from calculations in

paragraph C.(3) of AlliedSignal Service

Bulletin (SB) No. TSCP700–49–7266, dated

June 16, 1996, and the removal procedures

described in the Accomplishment

Instructions of that SB, and replace with

serviceable parts.

(b) Except as provided in paragraph (a),

this AD establishes a life limit of 8,000 cycles
12776 Federal Register / Vol. 62, No. 52 / Tuesday, March 18, 1997 / Proposed Rules

since new (CSN) for first stage LPC disks, P/

N 3606429–1.

(c) The definition of a disk cycle may be

found in the applicable AlliedSignal Inc.

APU Component Maintenance Manual.

(d) Except as provided in paragraph (e) of

this AD, no alternative replacement times

may be approved for first stage LPC disks, P/

N 3606429–1.

(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, Los

Angeles Aircraft Certification Office. The

request should be forwarded through an

appropriate FAA Principal Maintenance

Inspector, who may add comments and then

send it to the Manager, Los Angeles Aircraft

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 Los Angeles

Aircraft 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 requirements of this AD

can be accomplished.

Issued in Burlington, Massachusetts, on

February 25, 1997.

James C. Jones,

Acting Manager, Engine and Propeller

Directorate, Aircraft Certification Service.

[FR Doc. 97–6745 Filed 3–17–97; 8:45 am]

BILLING CODE 4910–13–U

DEPARTMENT OF THE INTERIOR

Office of Surface Mining Reclamation

and Enforcement

30 CFR Part 914

[SPATS No. IN–138–FOR; Amendment No.

95–3 II]

Indiana Regulatory Program

AGENCY: Office of Surface Mining

Reclamation and Enforcement (OSM),

Interior.

ACTION: Proposed rule; correction.

SUMMARY: OSM is correcting errors in

the SUPPLEMENTARY INFORMATION section,

under II. Description of the Proposed

Amendment, for a proposed rule

announcing receipt of a proposed

amendment to the Indiana regulatory

program that was published on

Tuesday, February 18, 1997 (62 FR

7192).

FOR FURTHER INFORMATION CONTACT:

Charles F. McDaniel, Acting Director,

Indianapolis Field Office, Telephone:

(317) 226–6700.

SUPPLEMENTARY INFORMATION:

II. Description of the Proposed

Amendment

On page 7192 of the February 18,

1997, Federal Register, the following

corrections are made:

1. In the second column, under 2. 310

IAC 12–3–131 Small Operator

Assistance; Eligibility for Assistance,

beginning in the fourth line, the words

‘‘by redesignating subsections (20(A)’’

should read ‘‘by redesignating

subsections (2)(B) as (2)(A)’’.

2. In the third column, under 4. 310

IAC 12–3–132.5 Small Operator

Assistance; Application Approval and

Notice, the two paragraphs under this

heading were included in the discussion

of this proposed regulation revision in

error. The following information should

have been included in the discussion:

Indiana proposes to clarify the

application approval and notice

requirements for its small operator

assistance program.

3. In the third column, under 5. 310

IAC 12–3–133 Small Operator

Assistance; Program Services and Data

Requirements, the following two

paragraphs should have been included

in the discussion of this proposed

regulation revision following the

existing text:

Indiana proposes to add new

subsection (c) to allow data collection

and analysis to proceed concurrently

with the development of mining and

reclamation plans by the operator.

Indiana proposes to add new

subsection (d) to require that data

collected under its small operator

assistance program be made available to

the public and that the program

administrator develop procedures for

interstate coordination and exchange of

data.

Dated: March 10, 1997.

Brent Wahlquist,

Regional Director, Mid-Continent Regional

Coordinating Center.

[FR Doc. 97–6753 Filed 3–17–97; 8:45 am]

BILLING CODE 4310–05–M

30 CFR Part 946

[VA–104–FOR]

Virginia Abandoned Mine Land

Reclamation Program

AGENCY: Office of Surface Mining

Reclamation and Enforcement (OSM),

Interior.

ACTION: Proposed rule; reopening of

comment period.

SUMMARY: OSM is opening the public

comment period on a proposed

amendment to the Virginia Abandoned

Mine Land Reclamation (AMLR)

Program (hereinafter referred to as the

Virginia Program) under the surface

Mining Control and Reclamation Act of

1977 (SMCRA), 30 U.S.C. 1201 et seq.,

as amended. In response to comments

from OSM and others, the State revised

and resubmitted the AMLR plan

amendment. The proposed amendment

is intended to streamline Virginia’s total

AMLR plan to be consistent with the

Federal regulations.

DATES: Written comments must be

received on or before 4:00 p.m. on April

2, 1997.

ADDRESSES: Written comments should

be mailed or hand-delivered to Mr.

Robert A. Penn, Director, Big Stone Gap

Field Office at the first address listed

below.

Copies of the Virginia program, the

proposed AMLR plan amendment

(including revisions and supplementary

submittals), and all written comments

received in response to the proposed

amendment will be available for public

review at the addresses listed below

during normal business hours, Monday

through Friday, excluding holidays:

Office of Surface Mining Reclamation

and Enforcement, Big Stone Gap Field

Office, Powell Valley Square

Shopping Center, 1941 Neeley Road,

Suite 201, Compartment 116, Big

Stone Gap, Virginia 24219,

Telephone: (540) 523–4303.

Virginia Division of Mined Land

Reclamation, P.O. Drawer 900, Big

Stone Gap, Virginia 24219,

Telephone: (703) 523–8100.

Each requester may receive, free of

charge, one copy of the proposed

amendment by contacting the OSM Big

Stone Gap Field Office.

FOR FURTHER INFORMATION CONTACT: Mr.

Robert A. Penn, Director, Big Stone Gap

Field Office, Telephone: (540) 523–

4303.

SUPPLEMENTARY INFORMATION:

I. Background on the Virginia Program

On December 15, 1981, the Secretary

of the Interior conditionally approved

the Virginia program. Background on

the Virginia program, including the

Secretary’s findings, the disposition of

comments, and the conditions of

approval can be found in the December

15, 1981 Federal Register (46 FR 61085–

61115). Subsequent actions concerning

the conditions of approval and AMLR

program amendments are identified at

300 CFR 946.20 and 946.25.