3448 Federal Register / Vol. 62, No. 15 / Thursday, January 23, 1997 / Rules and Regulations

may be inspected at the FAA, Transport

Airplane Directorate, 1601 Lind Avenue,

SW., Renton, Washington; or at the Office of

the Federal Register, 800 North Capitol

Street, NW., suite 700, Washington, DC.

(e) This amendment becomes effective on

February 27, 1997.

Issued in Renton, Washington, on January

7, 1997.

Darrell M. Pederson,

Acting Manager, Transport Airplane

Directorate, Aircraft Certification Service.

[FR Doc. 97–811 Filed 1–22–97; 8:45 am]

BILLING CODE 4910–13–U

14 CFR Part 39

[Docket No. 96–NM–79–AD; Amendment

39–9890; AD 97–02–06]

RIN 2120–AA64

Airworthiness Directives; Fokker

Model F27 Mark 050 and F28 Mark 0100

Series Airplanes

AGENCY: Federal Aviation

Administration, DOT.

ACTION: Final rule.

SUMMARY: This amendment adopts a

new airworthiness directive (AD),

applicable to certain Fokker Model F27

Mark 050 and F28 Mark 0100 series

airplanes, that requires installation of a

bonding cable for the housing of the

lavatory pump and filter assembly and

the lavatory bowl. This amendment is

prompted by a report indicating that the

housing of the lavatory pump and filter

assembly is not grounded properly. The

actions specified by this AD are

intended to prevent such improper

grounding, which could result in an

electrical fire and/or injury to

passengers and crewmembers.

DATES: Effective February 27, 1997.

The incorporation by reference of

certain publications listed in the

regulations is approved by the Director

of the Federal Register as of February

27, 1997.

ADDRESSES: The service information

referenced in this AD may be obtained

from Fokker Services B.V., Technical

Support Department, P.O. Box 75047,

1117 ZN Schiphol Airport, The

Netherlands. This information may be

examined at the Federal Aviation

Administration (FAA), Transport

Airplane Directorate, Rules Docket,

1601 Lind Avenue, SW., Renton,

Washington; or at the Office of the

Federal Register, 800 North Capitol

Street, NW., suite 700, Washington, DC.

FOR FURTHER INFORMATION CONTACT:

Ruth Harder, Aerospace Engineer,

Standardization Branch, ANM–113,

FAA, Transport Airplane Directorate,

1601 Lind Avenue, SW., Renton,

Washington 98055–4056; telephone

(206) 227–1721; fax (206) 227–1149.

SUPPLEMENTARY INFORMATION: A

proposal to amend part 39 of the Federal

Aviation Regulations (14 CFR part 39) to

include an airworthiness directive (AD)

that is applicable to certain Fokker

Model F27 Mark 050 and F28 Mark

0100 series airplanes was published in

the Federal Register on October 1, 1996

(61 FR 51255). That action proposed to

require installation of a bonding cable

for the housing of the lavatory pump

and filter assembly and the lavatory

bowl.

Interested persons have been afforded

an opportunity to participate in the

making of this amendment. Due

consideration has been given to the

single comment received.

The commenter supports the

proposed rule.

Conclusion

After careful review of the available

data, including the comment noted

above, the FAA has determined that air

safety and the public interest require the

adoption of the rule as proposed.

Cost Impact

The FAA estimates that 48 Model F28

Mark 0100 series airplanes of U.S.

registry will be affected by this AD, that

it will take approximately 6 work hours

per airplane to accomplish the required

actions, and that the average labor rate

is $60 per work hour. Required parts

will cost approximately $209 per

airplane. Based on these figures, the cost

impact of the AD on U.S. operators of

Model F28 Mark 0100 series airplanes of

U.S. registry is estimated to be $27,312,

or $569 per airplane.

The cost impact figures discussed

above are based on assumptions that no

operator has yet accomplished any of

the requirements of this AD action, and

that no operator would accomplish

those actions in the future if this AD

were not adopted.

Currently, there are no Model F27

Mark 050 series airplanes on the U.S.

Register. However, should an affected

airplane be imported and placed on the

U.S. Register in the future, it would

require approximately 2 work hours to

accomplish the proposed actions, at an

average labor rate of $60 per work hour.

Required parts would cost

approximately $88 per airplane. Based

on these figures, the cost impact of this

AD on Model F27 Mark 050 series

airplanes would be $208 per airplane.

Regulatory Impact

The regulations adopted herein will

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 final rule does

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)

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 final evaluation has

been prepared for this action and it is

contained in the Rules Docket. A copy

of it may be obtained from the Rules

Docket at the location provided under

the caption ADDRESSES.

List of Subjects in 14 CFR Part 39

Air transportation, Aircraft, Aviation

safety, Incorporation by reference,

Safety.

Adoption of the Amendment

Accordingly, pursuant to the

authority delegated to me by the

Administrator, the Federal Aviation

Administration amends 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:

97–02–06 Fokker: Amendment 39–9890.

Docket 96–NM–79–AD.

Applicability: Model F27 Mark 050 series

airplanes, as listed in Fokker Service Bulletin

SBF50–25–046, Revision 1, dated August 5,

1994; and Model F28 Mark 0100 series

airplanes, as listed in Fokker Service Bulletin

SBF100–25–069, dated July 13, 1994, as

revised by Service Bulletin Change

Notification (SBCN) SBF100–25–069/01,

dated February 15, 1995; certificated in any

category.

Note 1: This AD applies to each airplane

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

airplanes that have been modified, altered, or
Federal Register / Vol. 62, No. 15 / Thursday, January 23, 1997 / Rules and Regulations 3449

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 improper grounding of the

housing of the lavatory pump and filter

assembly, which could result in an electrical

fire and/or injury to passengers and

crewmembers, accomplish the following:

(a) Within 6 months after the effective date

of this AD, install a bonding cable for the

housing of the lavatory pump and filter

assembly and the lavatory bowl in

accordance with Fokker Service Bulletin

SBF50–25–046, Revision 1, dated August 5,

1994 (for Model F27 Mark 050 series

airplanes); and Service Bulletin SBF100–25–

069, dated July 13, 1994, as revised by

Service Bulletin Change Notification (SBCN)

SBF100–25–069/01, dated February 15, 1995

(for Model F28 Mark 0100 series airplanes);

as applicable.

(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, Manager,

Standardization Branch, ANM–113, 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, Standardization

Branch, ANM–113.

Note 2: Information concerning the

existence of approved alternative methods of

compliance with this AD, if any, may be

obtained from the Standardization Branch,

ANM–113.

(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) The installation shall be done in

accordance with Fokker Service Bulletin

SBF50–25–046, Revision 1, dated August 5,

1994; and Fokker Service Bulletin SBF100–

25–069, dated July 13, 1994, as revised by

Service Bulletin Change Notification (SBCN)

SBF100–25–069/01, dated February 15, 1995;

as applicable. Fokker Service Bulletin

SBF50–25–046, Revision 1, dated August 5,

1994, contains the following list of effective

pages:

Page No. Revision level shown on page Date shown on page

1 ........................................................................................... 1 .......................................................................................... August 5, 1994.

2–3 ....................................................................................... Original ................................................................................ August 1, 1994.

This incorporation by reference was

approved by the Director of the Federal

Register in accordance with 5 U.S.C.

552(a) and 1 CFR part 51. Copies may

be obtained from Fokker Services B.V.,

Technical Support Department, P.O.

Box 75047, 1117 ZN Schiphol Airport,

The Netherlands. Copies may be

inspected at the FAA, Transport

Airplane Directorate, 1601 Lind

Avenue, SW., Renton, Washington; or at

the Office of the Federal Register, 800

North Capitol Street, NW., suite 700,

Washington, DC.

(e) This amendment becomes effective

on February 27, 1997.

Issued in Renton, Washington, on January

8, 1997.

Darrell M. Pederson,

Acting Manager, Transport Airplane

Directorate, Aircraft Certification Service.

[FR Doc. 97–882 Filed 1–22–97; 8:45 am]

BILLING CODE 4910–13–U

14 CFR Part 39

[Docket No. 96–NM–243–AD; Amendment

39–9889; AD 97–02–05]

RIN 2120–AA64

Airworthiness Directives; Jetstream

Model 4101 Airplanes

AGENCY: Federal Aviation

Administration, DOT.

ACTION: Final rule.

SUMMARY: This amendment supersedes

an existing airworthiness directive (AD),

applicable to certain Jetstream Model

4101 airplanes, that currently requires,

among other things, replacing certain

yaw damper servos in the autopilot

system, or rendering the servo

inoperative. The actions specified by

that AD are intended to prevent

overheat failure of the Flight Control

Computer (FCC), which could result in

smoke in the flight deck that could

inhibit the ability of the flightcrew to

safely operate and land the airplane.

This new amendment requires

installation of circuit breakers on the

avionics relay panel, which, when

accomplished, constitutes terminating

action for the previous requirements of

the AD.

DATES: Effective February 27, 1997.

The incorporation by reference of

Jetstream Service Bulletin J41–22–006,

dated July 1, 1996, as listed in the

regulations, is approved by the Director

of the Federal Register as of February

27, 1997.

The incorporation by reference of

Jetstream Alert Service Bulletin J41–22–

005, dated July 1, 1996, as listed in the

regulations, was approved previously by

the Director of the Federal Register as of

October 1, 1996 (61 FR 48614,

September 16, 1996).

ADDRESSES: The service information

referenced in this AD may be obtained

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

16029, Dulles International Airport,

Washington, DC 20041–6029. This

information may be examined at the

Federal Aviation Administration (FAA),

Transport Airplane Directorate, Rules

Docket, 1601 Lind Avenue, SW.,

Renton, Washington; or at the Office of

the Federal Register, 800 North Capitol

Street, NW., suite 700, Washington, DC.

FOR FURTHER INFORMATION CONTACT:

William Schroeder, Aerospace Engineer,

Standardization Branch, ANM–113,

FAA, Transport Airplane Directorate,

1601 Lind Avenue, SW., Renton,

Washington 98055–4056; telephone

(206) 227–2148; fax (206) 227–1149.

SUPPLEMENTARY INFORMATION: A

proposal to amend part 39 of the Federal

Aviation Regulations (14 CFR part 39)

by superseding AD 96–19–06,

amendment 39–9754 (61 FR 48614,

September 16, 1996), which is

applicable to certain Jetstream Model

4101 airplanes, was published in the

Federal Register on October 23, 1996

(61 FR 54967). The action proposed to

supersede AD 96–19–06 to continue to

require the actions currently specified

in that AD:

1. A one-time inspection of the

airplane records to determine:

—the serial number,

—the total number of hours time-inservice accumulated,

—the date of installation of the yaw

damper servo in the autopilot system;

and

—the date of installation of a particular

kit, if installed.

2. Removal and replacement of certain

yaw damper servos, or rendering the

yaw damper servo inoperative.

The action also proposed to add a

requirement to install circuit breakers

on the avionics relay panel. When

accomplished, this installation would

constitute terminating action for the

previous requirements of the AD.

Interested persons have been afforded

an opportunity to participate in the

making of this amendment. No