Federal Register / Vol. 63, No. 83 /Thursday, April 30, 1998 / Proposed Rules 23685

e. By adding new paragraphs (e)(2)(ix)

and (e)(2)(x) to read as follows:

§ 319.37–8 Growing media.

* * * * *

(e) * * *

(2) * * *

(ix) If Rhododendron species,

propagated from mother plants that

have been visually inspected by an

APHIS inspector or an inspector of the

plant protection service of the exporting

country, and found free of evidence of

diseases caused by the following

pathogens: Chrysomyxa ledi var.

rhododendri, Erysiphe cruciferarum,

Erysiphe rhododendri, Exobasidium

vaccinum and vaccinum var.

japonicum, and Phomopsis theae; and

(x) If Rhododendron species,

introduced into the greenhouse as tissue

cultures or as rootless stem cuttings

from mother plants that:

(A) Have received a pesticide dip

prescribed by the plant protection

service of the exporting country for

mites, scale insects, and whitefly; and

(B) Have been grown for at least the

previous 6 months in a greenhouse that

meets the requirements of § 319.37–

8(e)(2)(ii).

* * * * *

Done in Washington, DC, this 23rd day of

April 1998.

Charles P. Schwalbe,

Acting Administrator, Animal and Plant

Health Inspection Service.

[FR Doc. 98–11497 Filed 4–29–98; 8:45 am]

BILLING CODE 3410–34–P

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. 98–CE–27–AD]

RIN 2120–AA64

Airworthiness Directives; AeromotIndustria Mecanico Metalurgica Ltda.

Model AMT–200 Powered Gliders

AGENCY: Federal Aviation

Administration, DOT.

ACTION: Notice of proposed rulemaking

(NPRM).

SUMMARY: This document proposes to

adopt a new airworthiness directive

(AD) that would apply to certain

Aeromot-Industria Mecanico

Metalurgica Ltda. (Aeromot) Model

AMT–200 powered gliders. The

proposed AD would require replacing

certain flexible hoses in the engine oil

system with flexible hoses with a larger

internal diameter. The proposed AD is

the result of mandatory continuing

airworthiness information (MCAI)

issued by the airworthiness authority for

Brazil. The actions specified by the

proposed AD are intended to prevent

inefficiency of the engine lubricating

system because of ineffective flexible

hoses, which could result in an in-flight

engine shutdown with consequent loss

of powered glider controllability.

DATES: Comments must be received on

or before June 9, 1998.

ADDRESSES: Submit comments in

triplicate to the Federal Aviation

Administration (FAA), Central Region,

Office of the Regional Counsel,

Attention: Rules Docket No. 98–CE–27–

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

Grupo Aeromot, Aeromot-Industria

Mecanico Metalurgica Ltda., Av. das

Industries-1210, Bairro Anchieta, Caixa

Postal 8031, 90200-Porto Alegre-RS,

Brazil. This information also may be

examined at the Rules Docket at the

address above.

FOR FURTHER INFORMATION CONTACT: Mr.

Curtis Jackson, Aerospace Engineer,

FAA, Atlanta Aircraft Certification

Office, One Crown Center, 1895 Phoenix

Blvd., suite 450, Atlanta, Georgia 30349;

telephone: (770) 703–6083; facsimile:

(770) 703–6097.

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. 98–CE–27–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, Central Region, Office of the

Regional Counsel, Attention: Rules

Docket No. 98–CE–27–AD, Room 1558,

601 E. 12th Street, Kansas City, Missouri

64106.

Discussion

The Centro Tecnico Aeroespacial

(CTA), which is the airworthiness

authority for Brazil, notified the FAA

that an unsafe condition may exist on

certain Aeromot Model AMT–200

powered gliders. The CTA reports that

the steel piping in the engine oil system

on the above-referenced powered gliders

was replaced with flexible hoses that

have a smaller internal diameter. These

smaller diameter hoses lead to

inefficiency of the engine lubricating

system.

This condition, if not corrected in a

timely manner, could result in an inflight engine shutdown with consequent

loss of powered glider controllability.

Relevant Service Information

Aeromot has issued Service Bulletin

(SB) B.S. No. 200–79–036, Issue Date:

January 30, 1997, which specifies

procedures for replacing any engine oil

system hose, part number 10702, 10703,

or 10704; with a hose with a larger

internal diameter, part number 10706,

10707, or 10708.

The CTA classified this service

bulletin as mandatory and issued

Brazilian AD 97–04–02, dated April 8,

1997, in order to assure the continued

airworthiness of these gliders in Brazil.

The FAA’s Determination

This powered glider model is

manufactured in Brazil and is type

certificated for operation in the United

States under the provisions of section

21.29 of the Federal Aviation

Regulations (14 CFR 21.29) and the

applicable bilateral airworthiness

agreement. Pursuant to this bilateral

airworthiness agreement, the CTA has

kept the FAA informed of the situation

described above.

The FAA has examined the findings

of the CTA; reviewed all available

information, including the service

information referenced above; and
23686 Federal Register / Vol. 63, No. 83 /Thursday, April 30, 1998 / Proposed Rules

determined that AD action is necessary

for products of this type design that are

certificated for operation in the United

States.

Explanation of the Provisions of the

Proposed AD

Since an unsafe condition has been

identified that is likely to exist or

develop in other Aeromot Model AMT–

200 powered gliders of the same type

design registered in the United States,

the FAA is proposing AD action. The

proposed AD would require replacing

any engine oil system hose, part number

10702, 10703, or 10704; with a hose

with a larger internal diameter, part

number 10706, 10707, or 10708.

Accomplishment of the proposed

installation would be in accordance

with Aeromot SB B.S. No. 200–79–036,

Issue Date: January 30, 1997.

Cost Impact

The FAA estimates that 18 powered

gliders in the U.S. registry would be

affected by the proposed AD, that it

would take approximately 7 workhours

per powered glider to accomplish the

proposed replacements, and that the

average labor rate is approximately $60

an hour. Based on these figures, the total

cost impact of the proposed AD on U.S.

operators is estimated to be $7,560, or

$420 per powered glider.

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 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. 106(g), 40113, 44701.

§ 39.13 [Amended]

2. Section 39.13 is amended by

adding a new airworthiness directive

(AD) to read as follows:

Aeromot-Industria Mecanico Metalurgica

Ltda.: Docket No. 98–CE–27–AD.

Applicability: Model AMT–200 powered

gliders, serial numbers 200.046 through

200.066, certificated in any category.

Note 1: This AD applies to each powered

glider 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 powered gliders 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 within the next 50

hours time-in-service (TIS) after the effective

date of this AD, unless already accomplished.

To prevent inefficiency of the engine

lubricating system because of ineffective

flexible hoses, which could result in an inflight engine shutdown with consequent loss

of powered glider controllability, accomplish

the following:

(a) For powered gliders with a serial

number in the range of 200.046 through

200.058: Replace any engine oil system hose,

part number 10702; with a hose with a larger

internal diameter, part number 10706.

Accomplish the replacement in accordance

with Aeromot Service Bulletin B.S. No. 200–

79–036, Issue Date: January 30, 1997.

(b) For powered gliders with a serial

number in the range of 200.059 through

200.066: Replace any engine oil system hose,

part number 10702, 10703, or 10704; with a

hose with a larger diameter, part number

10706, 10707, or 10708. Accomplish the

replacement in accordance with Aeromot

Service Bulletin B.S. No. 200–79–036, Issue

Date: January 30, 1997.

(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 glider 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, Atlanta Aircraft

Certification Office (ACO), One Crown

Center, 1895 Phoenix Blvd., suite 450,

Atlanta, Georgia 30349. The request shall be

forwarded through an appropriate FAA

Maintenance Inspector, who may add

comments and then send it to the Manager,

Atlanta ACO.

Note 2: Information concerning the

existence of approved alternative methods of

compliance with this AD, if any, may be

obtained from the Atlanta ACO.

(e) Questions or technical information

related to Aeromot Service Bulletin B.S. No.

200–79–036, Issue Date: January 30, 1997,

Grupo Aeromot, Aeromot-Industria Mecanico

Metalurgica Ltda., Av. das Industries-1210,

Bairro Anchieta, Caixa Postal 8031, 90200-

Porto Alegre-RS, Brazil. This service

information may be examined at the FAA,

Central Region, Office of the Regional

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

Kansas City, Missouri 64106.

Note 3: The subject of this AD is addressed

in Brazilian AD 97–04–02, dated April 8,

1997.

Issued in Kansas City, Missouri, on April

23, 1998.

Marvin R. Nuss,

Acting Manager, Small Airplane Directorate,

Aircraft Certification Service.

[FR Doc. 98–11439 Filed 4–29–98; 8:45 am]

BILLING CODE 4910–13–U

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. 98–CE–28–AD]

RIN 2120–AA64

Airworthiness Directives; British

Aerospace Jetstream Models 3101 and

3201 Airplanes

AGENCY: Federal Aviation

Administration, DOT.

ACTION: Notice of proposed rulemaking

(NPRM).

SUMMARY: This document proposes to

adopt a new airworthiness directive

(AD) that would apply to certain British

Aerospace Jetstream Models 3101 and

3201 airplanes that are equipped with

the ground inhibit function

(Modification JM7813A (SB 27–

JM7813A) or JM7813B). The proposed

AD would require removing the ground

inhibit time delay and the ground test

relay from the stall warning and

protection system. This proposed AD