65230 Federal Register / Vol. 62, No. 238 / Thursday, December 11, 1997 / Proposed Rules

feather the propeller, and consequent

reduced controllability of the airplane;

accomplish the following:

(a) Within 90 days after the effective date

of this AD, replace electrical relays 15KF and

16KF having part number (P/N)

DON405M520U5NL with relays having P/N

2504MY1, in accordance with Dornier

Service Bulletin SB–328–61–138, dated

November 13, 1995.

(b) As of the effective date of this AD, no

person shall install relays 15KF and 16KF

having P/N DON405M520U5NL on any

airplane.

(c) An alternative method of compliance or

adjustment of the compliance time that

provides an acceptable level of safety may be

used if approved by the Manager,

International Branch, ANM–116, FAA,

Transport Airplane Directorate. Operators

shall submit their requests through an

appropriate FAA Principal Maintenance

Inspector, who may add comments and then

send it to the Manager, International Branch,

ANM–116.

Note 2: Information concerning the

existence of approved alternative methods of

compliance with this AD, if any, may be

obtained from the International Branch,

ANM–116.

(d) Special flight permits may be issued in

accordance with §§ 21.197 and 21.199 of the

Federal Aviation Regulations (14 CFR 21.197

and 21.199) to operate the airplane to a

location where the requirements of this AD

can be accomplished.

Note 3: The subject of this AD is addressed

in German airworthiness directive 96–002,

dated January 8, 1996.

Issued in Renton, Washington, on

December 5, 1997.

John J. Hickey,

Acting Manager, Transport Airplane

Directorate, Aircraft Certification Service.

[FR Doc. 97–32425 Filed 12–10–97; 8:45 am]

BILLING CODE 4910–13–U

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. 97–NM–190–AD]

RIN 2120–AA64

Airworthiness Directives; Dassault

Model Mystere-Falcon 50 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 all

Dassault Model Mystere-Falcon 50

series airplanes. This proposal would

require a one-time inspection of the

clearances around the wiring harnesses

of the right-hand electrical cabinet, and

readjustment of the clearances, if

necessary. This proposal would also

require installation of protective strips

on the wiring harnesses and equipment

supports. This proposal is prompted by

issuance of mandatory continued

airworthiness information by a foreign

civil airworthiness authority. The

actions specified by the proposed AD

are intended to prevent interference

between the wiring harnesses and

adjacent equipment, support brackets,

and structural elements, which could

cause an electrical short circuit resulting

in fire, and consequent loss of electrical

power to essential flight systems.

DATES: Comments must be received by

January 12, 1998.

ADDRESSES: Submit comments in

triplicate to the Federal Aviation

Administration (FAA), Transport

Airplane Directorate, ANM–114,

Attention: Rules Docket No. 97–NM–

190–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

Dassault Falcon Jet Corporation,

Teterboro Airport, P.O. Box 2000, South

Hackensack, New Jersey 07606. This

information may be examined at the

FAA, Transport Airplane Directorate,

1601 Lind Avenue, SW., Renton,

Washington.

FOR FURTHER INFORMATION CONTACT:

International Branch, ANM–116, FAA,

Transport Airplane Directorate, 1601

Lind Avenue, SW., Renton, Washington

98055–4056; telephone (425) 227–2110;

fax (425) 227–1149.

SUPPLEMENTARY INFORMATION:

Comments Invited

Interested persons are invited to

participate in the making of the

proposed rule by submitting such

written data, views, or arguments as

they may desire. Communications shall

identify the Rules Docket number and

be submitted in triplicate to the address

specified above. All communications

received on or before the closing date

for comments, specified above, will be

considered before taking action on the

proposed rule. The proposals contained

in this 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–NM–190–AD.’’ The

postcard will be date stamped and

returned to the commenter.

Availability of NPRMs

Any person may obtain a copy of this

NPRM by submitting a request to the

FAA, Transport Airplane Directorate,

ANM–114, Attention: Rules Docket No.

97–NM–190–AD, 1601 Lind Avenue,

SW., Renton, Washington 98055–4056.

Discussion

The Direction Ge ́ne ́rale de l’Aviation

Civile (DGAC), which is the

airworthiness authority for France,

notified the FAA that an unsafe

condition may exist on all Dassault

Model Mystere-Falcon 50 series

airplanes. The DGAC advises that it

received a report of an in-flight incident,

in which interference between a wiring

harness cable and an equipment support

bracket resulted in an electrical short.

This condition, if not corrected, could

result in fire and loss of electrical power

to essential flight systems.

Explanation of Relevant Service

Information

Dassault has issued Service Bulletin

F50–256 (F50–20–5), Revision 1, dated

December 22, 1996, which describes

procedures for a one-time inspection

(measurement) of the clearances

between the wiring harnesses and the

equipment, support brackets, and

structural elements between fuselage

frames 9 and 11, on the right-hand

electrical cabinet; and adjustment of

these clearances, if necessary.

Additionally, the service bulletin

describes procedures for installation of

Teflon protective strips on the wiring

harnesses and rubber protective strips

on the rear edges of the equipment

supports. Accomplishment of the

actions specified in the service bulletin

is intended to adequately address the

identified unsafe condition.

The DGAC classified this service

bulletin as mandatory and issued

French airworthiness directive 96–094–

017(B)R1, dated December 18, 1996, in

order to assure the continued

airworthiness of these airplanes in

France.
Federal Register / Vol. 62, No. 238 / Thursday, December 11, 1997 / Proposed Rules 65231

FAA’s Conclusions

This airplane model is manufactured

in France and is type certificated for

operation in the United States under the

provisions of § 21.29 of the Federal

Aviation Regulations (14 CFR 21.29)

and the applicable bilateral

airworthiness agreement. Pursuant to

this bilateral airworthiness agreement,

the DGAC has kept the FAA informed

of the situation described above. The

FAA has examined the findings of the

DGAC, reviewed all available

information, and determined that AD

action is necessary for products of this

type design that are certificated for

operation in the United States.

Explanation of Requirements of

Proposed Rule

Since an unsafe condition has been

identified that is likely to exist or

develop on other airplanes of the same

type design registered in the United

States, the proposed AD would require

accomplishment of the actions specified

in the service bulletin described

previously.

Cost Impact

The FAA estimates that 155 Dassault

Model Mystere-Falcon 50 series

airplanes of U.S. registry would be

affected by this proposed AD, that it

would take approximately 6 work hours

per airplane to accomplish the proposed

actions, and that the average labor rate

is $60 per work hour. Required parts

would cost approximately $355 per

airplane. Based on these figures, the cost

impact of the proposed AD on U.S.

operators is estimated to be $110,825, or

$715 per airplane.

The cost impact figure discussed

above is based on assumptions that no

operator has yet accomplished any of

the proposed requirements of this AD

action, and that no operator would

accomplish those actions in the future if

this AD were not adopted.

Regulatory Impact

The regulations proposed herein

would not have substantial direct effects

on the States, on the relationship

between the national government and

the States, or on the distribution of

power and responsibilities among the

various levels of government. Therefore,

in accordance with Executive Order

12612, it is determined that this

proposal would not have sufficient

federalism implications to warrant the

preparation of a Federalism Assessment.

For the reasons discussed above, I

certify that this proposed regulation (1)

is not a ‘‘significant regulatory action’’

under Executive Order 12866; (2) is not

a ‘‘significant rule’’ under the DOT

Regulatory Policies and Procedures (44

FR 11034, February 26, 1979); and (3) if

promulgated, will not have a significant

economic impact, positive or negative,

on a substantial number of small entities

under the criteria of the Regulatory

Flexibility Act. A copy of the draft

regulatory evaluation prepared for this

action is contained in the Rules Docket.

A copy of it may be obtained by

contacting the Rules Docket at the

location provided under the caption

ADDRESSES.

List of Subjects in 14 CFR Part 39

Air transportation, Aircraft, Aviation

safety, Safety.

The Proposed Amendment

Accordingly, pursuant to the

authority delegated to me by the

Administrator, the Federal Aviation

Administration proposes to amend part

39 of the Federal Aviation Regulations

(14 CFR part 39) as follows:

PART 39—AIRWORTHINESS

DIRECTIVES

1. The authority citation for part 39

continues to read as follows:

Authority: 49 U.S.C. 106(g), 40113, 44701.

§ 39.13 [Amended]

2. Section 39.13 is amended by

adding the following new airworthiness

directive:

Dassault Aviation: Docket 97–NM–190–AD.

Applicability: All Model Mystere-Falcon 50

series airplanes, certificated in any category.

Note 1: This AD applies to each airplane

identified in the preceding applicability

provision, regardless of whether it has been

otherwise modified, altered, or repaired in

the area subject to the requirements of this

AD. For airplanes that have been modified,

altered, or repaired so that the performance

of the requirements of this AD is affected, the

owner/operator must request approval for an

alternative method of compliance in

accordance with paragraph (b) of this AD.

The request should include an assessment of

the effect of the modification, alteration, or

repair on the unsafe condition addressed by

this AD; and, if the unsafe condition has not

been eliminated, the request should include

specific proposed actions to address it.

Compliance: Required as indicated, unless

accomplished previously.

To prevent interference between the wiring

harnesses and adjacent equipment, support

brackets, and structural elements, which

could cause an electrical short circuit

resulting in fire, and consequent loss of

electrical power to essential flight systems;

accomplish the following:

(a) Within 6 months or 300 flight hours

after the effective date of this AD, whichever

occurs first, accomplish the requirements of

paragraphs (a)(1), (a)(2), and (a)(3) of this AD

in accordance with Dassault Service Bulletin

F50–256 (F50–20–5), Revision 1, dated

December 22, 1996.

(1) Perform a one-time inspection of the

clearances between the wiring harnesses and

the adjacent equipment, support brackets,

and structural elements. If any clearance is

outside the limits specified in the service

bulletin, prior to further flight, readjust the

clearances in accordance with the service

bulletin.

(2) Install Teflon protective strips on the

wiring harnesses in the vicinity of the

equipment supports.

(3) Install rubber protective strips to the

rear edges of the equipment supports.

(b) An alternative method of compliance or

adjustment of the compliance time that

provides an acceptable level of safety may be

used if approved by the Manager,

International Branch, ANM–116, FAA,

Transport Airplane Directorate. Operators

shall submit their requests through an

appropriate FAA Principal Maintenance

Inspector, who may add comments and then

send it to the Manager, International Branch,

ANM–116.

Note 2: Information concerning the

existence of approved alternative methods of

compliance with this AD, if any, may be

obtained from the International Branch,

ANM–116.

(c) Special flight permits may be issued in

accordance with § 21.197 and 21.199 of the

Federal Aviation Regulations (14 CFR 21.197

and 21.199) to operate the airplane to a

location where the requirements of this AD

can be accomplished.

Note 3: The subject of this AD is addressed

in French airworthiness directive 96–094–

017(B)R1, dated December 18, 1996.

Issued in Renton, Washington, on

December 5, 1997.

John J. Hickey,

Acting Manager, Transport Airplane

Directorate, Aircraft Certification Service.

[FR Doc. 97–32423 Filed 12–10–97; 8:45 am]

BILLING CODE 4910–13–U

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. 97–NM–145–AD]

RIN 2120–AA64

Airworthiness Directives; Saab Model

SAAB 2000 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

certain Saab Model SAAB 2000 series

airplanes. This proposal would require

repetitive visual inspections to detect

discrepancies of the bushing installation