9794 Federal Register / Vol. 60, No. 35 / Wednesday, February 22, 1995 / Proposed Rules

§ 39.13 [Amended]

2. Section 39.13 is amended by

adding the following new airworthiness

directive:

General Electric Company: Docket No. 94–

ANE–41.

Applicability: General Electric Company

(GE) CF6–80A series turbofan engines

installed on, but not limited to, Airbus A310

series and Boeing 767 series aircraft.

Compliance: Required as indicated, unless

accomplished previously.

To prevent a compressor rear frame (CRF)

separation, which could result in a rejected

takeoff and damage to the aircraft,

accomplish the following:

(a) Inspect CRF, Part Numbers (P/N)

9283M77G07, 9283M77G08, 9283M77G09,

9283M77G11, 9283M77G14, 7283M77G15,

9283M77G16, 9283M77G17, 9283M77G18,

9283M77G19, 1338M77G01, 1338M77G02,

1338M77G03, 1338M77G04, 1338M77G05,

and 1338M77G06, that have not

accomplished the midflange rework or

replacement in accordance with any revision

level of GE CF6–80A Service Bulletin (SB)

No. 72–600 or 72–611, prior to the effective

date of this AD, as follows:

(1) Perform an on-wing eddy current

inspection (ECI) or an on-wing spot

fluorescent penetrant inspection (FPI) of the

CRF midflange for cracks in accordance with

the Accomplishment Instructions and the

schedule outlined in Table 1 of GE CF6–80A

SB No. 72–593, Revision 2, dated March 19,

1992, or within 1,000 cycles in service since

the last shop level FPI, whichever occurs

later, after the effective date of this AD.

(2) Thereafter, reinspect the CRF midflange

for cracks in accordance with the

Accomplishment Instructions and schedule

outlined in Table 2 of GE CF6–80A SB No.

72–593, Revision 2, dated March 19, 1992.

(3) Remove from service prior to further

flight CRF’s with cracked midflanges that

exceed the on-wing serviceable limits

specified in Table 2 of GE CF6–80A SB No.

72–593, Revision 2, dated March 19, 1992,

and replace with a serviceable part.

(b) Remove from service CRF’s identified

in paragraph (a) of this AD at the next piecepart exposure, or by December 31, 1996,

whichever occurs earlier, and replace with a

serviceable part. Removal and replacement of

CRF’s in accordance with this paragraph

constitutes terminating action to the on-wing

inspection requirements of paragraph (a) of

this AD.

(c) For the purpose of this AD, a

serviceable part is defined as a CRF that has

accomplished the midflange rework or

replacement in accordance with any revision

level of GE CF6–80A SB No. 72–600 or 72–

611.

(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. The request should be

forwarded through an appropriate FAA

Principal Maintenance Inspector, who may

add comments and then send it to the

Manager, Engine Certification Office.

Note: 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

February 14, 1995.

James C. Jones,

Acting Manager, Engine and Propeller

Directorate, Aircraft Certification Service.

[FR Doc. 95–4249 Filed 2–21–95; 8:45 am]

BILLING CODE 4910–13–P

14 CFR Part 39

[Docket No. 92–CE–23–AD]

Airworthiness Directives; Jetstream

Aircraft Limited (formerly British

Aerospace, Regional Aircraft Limited)

Jetstream Models 3101 and 3201

Airplanes

AGENCY: Federal Aviation

Administration, DOT.

ACTION: Supplemental notice of

proposed rulemaking (NPRM);

Reopening of the comment period.

SUMMARY: This document reopens the

comment period and proposes to revise

an earlier proposed airworthiness

directive (AD), which would have

required inspecting the main passenger/

crew door locking mechanism on

certain Jetstream Aircraft Limited (JAL)

Jetstream Models 3101 and 3201

airplanes to ensure that a taper pin is

installed, and installing a taper pin if

not already installed. Since publication

of that proposal, the Federal Aviation

Administration (FAA) has re-examined

various service difficulty reports on the

affected airplanes, and determined that

this is still a valid safety issue, and that

a modification to the passenger door

warning system should also be

included. Since this action adds an

additional modification that was not

originally proposed, the FAA is

allowing additional time for the public

to comment. The proposed actions are

intended to prevent the inability to open

the passenger/crew door or failure of the

passenger door warning system, which,

if not detected and corrected, could

result in passenger injury if emergency

evacuation is needed.

DATES: Comments must be received on

or before April 28, 1995.

ADDRESSES: Submit comments in

triplicate to the FAA, Central Region,

Office of the Assistant Chief Counsel,

Attention: Rules Docket No. 92–CE–23–

AD, Room 1558, 601 E. 12th Street,

Kansas City, Missouri 64106. Comments

may be inspected at this location

between 8 a.m. and 4 p.m., Monday

through Friday, holidays excepted.

Service information that applies to the

proposed AD may be obtained from

Jetstream Aircraft Limited, Manager

Product Support, Prestwick Airport,

Ayrshire, KA9 2RW Scotland; telephone

(44–292) 79888; facsimile (44–292)

79703; or Jetstream Aircraft Inc.,

Librarian, P.O. Box 16029, Dulles

International Airport, Washington, DC

20041–6029; telephone (703) 406–1161;

facsimile (703) 406–1469. This

information also may be examined at

the Rules Docket at the address above.

FOR FURTHER INFORMATION CONTACT: Mr.

Raymond A. Stoer, Program Officer,

Brussels Aircraft Certification Office,

FAA, Europe, Africa, and Middle East

Office, c/o American Embassy, B–1000

Brussels, Belgium; telephone (322)

513.3830; facsimile (322) 230.6899; or

Mr. John P. Dow, Sr., Project Officer,

Small Airplane Directorate, Airplane

Certification Service, FAA, 1201

Walnut, suite 900, Kansas City, Missouri

64106; telephone (816) 426–6932;

facsimile (816) 426–2169.

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 that

summarizes 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. 92–CE–23–AD.’’ The
Federal Register / Vol. 60, No. 35 / Wednesday, February 22, 1995 / Proposed Rules 9795

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, Central Region, Office of the

Assistant Chief Counsel, Attention:

Rules Docket No. 92–CE–23–AD, Room

1558, 601 E. 12th Street, Kansas City,

Missouri 64106.

Discussion

A proposal (NPRM) to amend part 39

of the Federal Aviation Regulations (14

CFR part 39) to include an AD that

would apply to certain JAL Jetstream

Models 3101 and 3201 airplanes was

published in the Federal Register on

May 26, 1992 (57 FR 21911). The action

proposed to require inspecting the main

passenger/crew door locking

mechanism to ensure that a taper pin is

installed, and installing a taper pin if

not already installed. The proposed

actions would require to be

accomplished in accordance with

Jetstream Service Bulletin (SB) 52–A–JA

911140, dated February 3, 1992. This

proposal was revised to incorporate

Jetstream 52–A–JA 911140, Revision 1,

dated June 26, 1992, and then

republished in the Federal Register as a

supplemental NPRM on April 26, 1993

(58 FR 21957).

Interested persons were afforded an

opportunity to participate in the making

of this amendment during both the

NPRM and supplemental NPRM stages.

No comments were received on the

proposed rule or the FAA’s

determination of the cost to the public

in either instance.

Since publication of the proposals,

the FAA has re-examined various

service difficulty reports on the affected

airplanes, and determined that the

proposed modification is still a valid

safety issue, but is not considered an

urgent safety of flight issue. In addition,

the FAA determined that a modification

to the passenger door warning system

should be incorporated in order to

ensure evacuation efficiency in the

event of an emergency. Several reports

of passenger door warning system

malfunctions prompted the FAA to

incorporate this modification into the

proposal. Accomplishment of the

proposed passenger door warning

modification would be in accordance

with Jetstream SB 52–JM 7793, which

incorporates the following pages:

Pages Revision level Date

4 through ...... Original Issue November

19, 1992.

1, 2, and 3 ... Revision 1 .... August 10,

1993.

In addition, JAL has revised certain

pages of Jetstream SB 52–A–JA 911140,

and the FAA has incorporated these

revised pages (Revision 2) into the

proposal. Jetstream SB 52–A–JA 911140

now incorporates the following pages:

Pages Revision level Date

4, 5, 7, and 9 Original Issue February 3,

1992.

2 ................... Revision 1 .... June 26,

1992.

1, 3, 6, and 8 Revision 2 .... October 6,

1992.

Since this action adds an additional

modification that was not originally

proposed, the FAA is reopening the

comment period to provide additional

time for public comment.

The FAA estimates that 200 airplanes

in the U.S. registry would be affected by

the proposed AD, that it would take

approximately 10 workhours (2

workhours for the taper pin installation

and 8 workhours for the passenger door

warning system modification) per

airplane to accomplish the proposed

action, and that the average labor rate is

approximately $60 an hour. Parts to

accomplish the modifications will be

provided by JAL at no cost to the owner/

operator. Based on these figures, the

total cost impact of the proposed AD on

U.S. operators is estimated to be

$120,000. This figure is based on the

assumption that no affected owner/

operator has accomplished either of the

proposed modifications; that all

airplanes would need a taper pin

installed on the passenger/crew door

locking mechanism; and that no

airplane owner/operator has

accomplished the passenger door

warning system modification. The FAA

anticipates that a majority of the

affected airplanes would already have

taper pins installed and passenger door

warning system modifications

incorporated, thereby reducing the

proposed cost impact upon the public.

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 action (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) 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 has been placed 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. App. 1354(a), 1421

and 1423; 49 U.S.C. 106(g); and 14 CFR

11.89.

§ 39.13 [Amended]

2. Section 39.13 is amended by

adding a new airworthiness directive to

read as follows:

Jetstream Aircraft Limited: Docket No. 92–

CE–23–AD.

Applicability: Jetstream Models 3101 and

3201 airplanes (all serial numbers),

certificated in any category.

Compliance: Required within the next 500

hours time-in-service after the effective date

of this AD, unless already accomplished.

To prevent the inability to open the

passenger/crew door or failure of the

passenger door warning system, which, if not

detected and corrected, could result in

passenger injury if emergency evacuation is

needed, accomplish the following:

(a) For all affected airplanes that have a

main passenger/crew door installed with one

of the following serial numbers, accomplish

paragraphs (a)(1) and (a)(2) of this AD, as

applicable:

WIPL–SD–0001 through WIPL–SD–0005,

WIPL–SD–0008 through WIPL–SD–0031,

WIPL–SD–0034 through WIPL–SD–0046,
9796 Federal Register / Vol. 60, No. 35 / Wednesday, February 22, 1995 / Proposed Rules

WIPL–SD–0049, WIPL–SD–0051 through

WIPL–SD–0065, WIPL–SD–0067, WIPL–

SD–0070, WIPL–SD–0071,

SDJ10883, SDJ10884A, SDJ10884B, and

SDJ10886 through SDJ10891

(1) To ensure that a part number SP28E4

taper pin is installed, visually inspect the

passenger/crew door locking mechanism in

the area between the locking dog and

indicator button assembly in accordance with

Part 2 of the Accomplishment Instructions

section of Jetstream Service Bulletin (SB) 52–

A–JA 911140, which incorporates the

following pages:

Pages Revision level Date

4, 5, 7, and 9 Original Issue February 3,

1992.

2 ................... Revision 1 .... June 26,

1992.

1, 3, 6, and 8 Revision 2 .... October 6,

1992.

(2) If a taper pin (part number SP28E4) is

not installed, prior to further flight,

accomplish Part 3 of the Accomplishment

Instructions section of Jetstream SB 52–A–JA

911140.

(b) For all affected airplanes regardless of

the serial number passenger door installed,

modify the passenger door warning system in

accordance with the Accomplishment

Instructions section of Jetstream SB 52–JM

7793, which incorporates the following

pages:

Pages Revision level Date

4 through 11 Original Issue November

19, 1992.

1, 2, and 3 ... Revision 1 .... August 10,

1993.

Note 1: Compliance with a previous

revision level of the service bulletins

referenced in this AD fulfills the applicable

requirements of this AD and is considered

‘‘unless already accomplished’’ for that

portion of the AD.

(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 airplane to

a location where the requirements of this AD

can be accomplished.

(d) An alternative method of compliance or

adjustment of the compliance times that

provides an equivalent level of safety may be

approved by the Manager, Brussels Aircraft

Certification Office (ACO), FAA, Europe,

Africa, and Middle East Office, c/o American

Embassy, B–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 ACO.

Note 2: Information concerning the

existence of approved alternative methods of

compliance with this AD, if any, may be

obtained from the Brussels ACO.

(e) All persons affected by this directive

may obtain copies of the documents referred

to herein upon request to Jetstream Aircraft

Limited, Manager Product Support,

Prestwick Airport, Ayrshire, KA9 2RW

Scotland; telephone (44–292) 79888; or

Jetstream Aircraft Inc., Librarian, P.O. Box

16029, Dulles International Airport,

Washington, DC, 20041–6029; or may

examine these documents at the FAA,

Central Region, Office of the Assistant Chief

Counsel, Room 1558, 601 E. 12th Street,

Kansas City, Missouri 64106.

Issued in Kansas City, Missouri, on

February 14, 1995.

Barry D. Clements,

Manager, Small Airplane Directorate, Aircraft

Certification Service.

[FR Doc. 95–4252 Filed 2–21–95; 8:45 am]

BILLING CODE 4910–13–U

14 CFR Part 39

[Docket No. 94–NM–254–AD]

Airworthiness Directives; Lockheed

Model L–1011–385 Series Airplanes

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

Lockheed Model L–1011–385 series

airplanes. This proposal would require

modifications of various fluid drainage

areas of the fuselage. This proposal is

prompted by incidents involving

corrosion and fatigue cracking in

transport category airplanes that are

approaching or have exceeded their

economic design goal; these incidents

have jeopardized the airworthiness of

the affected airplanes. The actions

specified by the proposed AD are

intended to prevent degradation of the

structural capabilities of the affected

airplanes due to problems associated

with corrosion.

DATES: Comments must be received by

April 17, 1995.

ADDRESSES: Submit comments in

triplicate to the Federal Aviation

Administration (FAA), Transport

Airplane Directorate, ANM–103,

Attention: Rules Docket No. 94–NM–

254–AD, 1601 Lind Avenue, SW.,

Renton, Washington 98055–4056.

Comments may be inspected at this

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

p.m., Monday through Friday, except

Federal holidays.

The service information referenced in

the proposed rule may be obtained from

Lockheed Aeronautical Systems

Support Company, Field Support

Department, Dept. 693, Zone 0755, 2251

Lake Park Drive, Smyrna, Georgia

30080. This information may be

examined at the FAA, Transport

Airplane Directorate, 1601 Lind

Avenue, SW., Renton, Washington; or at

the FAA, Atlanta Aircraft Certification

Office, Small Airplane Directorate,

Campus Building, 1701 Columbia

Avenue, Suite 2–160, College Park,

Georgia.

FOR FURTHER INFORMATION CONTACT:

Thomas Peters, Flight Test Branch,

ACE–160A, FAA, Atlanta Aircraft

Certification Office, Small Airplane

Directorate, Campus Building, 1701

Columbia Avenue, Suite 2–160, College

Park, Georgia 30337–2748; telephone

(404) 305–7367; fax (404) 305–7348.

SUPPLEMENTARY INFORMATION:

Comments Invited

Interested persons are invited to

participate in the making of the

proposed rule by submitting such

written data, views, or arguments as

they may desire. Communications shall

identify the Rules Docket number and

be submitted in triplicate to the address

specified above. All communications

received on or before the closing date

for comments, specified above, will be

considered before taking action on the

proposed rule. The proposals contained

in this 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 94–NM–254–AD.’’ The

postcard will be date stamped and

returned to the commenter.

Availability of NPRMs

Any person may obtain a copy of this

NPRM by submitting a request to the

FAA, Transport Airplane Directorate,

ANM–103, Attention: Rules Docket No.

94–NM–254–AD, 1601 Lind Avenue,

SW., Renton, Washington 98055–4056.

Discussion

In April 1988, a high-cycle transport

category airplane (specifically, a Boeing

Model 737) was involved in an accident

in which the airplane suffered major

structural damage during flight.