24872 Federal Register / Vol. 65, No. 83 / Friday, April 28, 2000 / Rules and Regulations

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:

2000–08–13 Learjet: Amendment 39–11699.

Docket 2000–NM–85–AD.

Applicability: Model 45 airplanes on which

Crane Hydro-Aire brake control unit part

number (P/N) 42–933–2 is installed;

certificated in any category.

Compliance: Required as indicated, unless

accomplished previously.

To provide the flight crew with procedures

to detect an uncommanded brake application

condition during taxi and takeoff, which

could result in a possible wheel/brake fire

and/or a high-speed rejected takeoff,

accomplish the following:

Airplane Flight Manual (AFM) Revision

(a) Within 10 days after the effective date

of this AD, revise the Limitations and Normal

Procedures Sections of the FAA-approved

AFM to include Learjet Temporary Flight

Manual (TFM) Changes 2000–01, 2000–02,

2000–03, 2000–04, 2000–05, 2000–06, 2000–

07, and 2000–08, each dated April 6, 2000.

Note 1: The AFM revision required by

paragraph (a) of this AD may be

accomplished by inserting a copy of the

applicable TFM Change into the applicable

section of the AFM. When these TFM

Changes have been incorporated into the

general revisions of the AFM, the general

revisions may be inserted into the AFM,

provided that the information contained in

the general revisions is identical to that

specified in the TFM Changes.

Alternative Methods of Compliance

(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, Wichita

Aircraft Certification Office (ACO), FAA,

Small Airplane Directorate. Operators shall

submit their requests through an appropriate

FAA Principal Operations Inspector, who

may add comments and then send it to the

Manager, Wichita ACO.

Note 2: Information concerning the

existence of approved alternative methods of

compliance with this AD, if any, may be

obtained from the Wichita ACO.

Special Flight Permits

(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.

Incorporation by Reference

(d) The Airplane Flight Manual revisions

shall be done in accordance with Learjet

Temporary Flight Manual Change 2000–01,

dated April 6, 2000; Learjet Temporary Flight

Manual Change 2000–02, dated April 6,

2000; Learjet Temporary Flight Manual

Change 2000–03, dated April 6, 2000; Learjet

Temporary Flight Manual Change 2000–04,

dated April 6, 2000; Learjet Temporary Flight

Manual Change 2000–05, dated April 6,

2000; Learjet Temporary Flight Manual

Change 2000–06, dated April 6, 2000; Learjet

Temporary Flight Manual Change 2000–07,

dated April 6, 2000; and Learjet Temporary

Flight Manual Changes 2000–08, dated April

6, 2000. 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 Bombardier Aerospace, Learjet, One

Learjet Way, Wichita, Kansas 67277–7707.

Copies may be inspected at the FAA,

Transport Airplane Directorate, 1601 Lind

Avenue, SW., Renton, Washington; or at

Small Airplane Directorate, Wichita

Certification Office, 1801 Airport Road,

Room 100, Mid-Continent Airport, Wichita,

Kansas; or at the Office of the Federal

Register, 800 North Capitol Street, NW., suite

700, Washington, DC.

(e) This amendment becomes effective on

May 15, 2000.

Issued in Renton, Washington, on April 17,

2000.

Donald L. Riggin,

Acting Manager, Transport Airplane

Directorate, Aircraft Certification Service.

[FR Doc. 00–10050 Filed 4–27–00; 8:45 am]

BILLING CODE 4910–13–P

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. 99–SW–73–AD; Amendment

39–11702; AD 2000–08–16]

RIN 2120–AA64

Airworthiness Directives; Eurocopter

Deutschland GMBH Model MBB-BK

117 A–1, A–3, A–4, B–1, B–2, and C–

1 Helicopters

AGENCY: Federal Aviation

Administration, DOT.

ACTION: Final rule.

SUMMARY: This amendment adopts a

new airworthiness directive (AD) that

applies to Eurocopter Deutschland

GMBH (ECD) Model MBB–BK 117 A–1,

A–3, A–4, B–1, B–2, and C–1

helicopters. This AD requires modifying

the engine and transmission cowling

doors (cowling doors). This amendment

is prompted by an emergency landing of

an ECD Model MBB-BK 117 helicopter

after the No. 1 engine cowling opened,

separated from the helicopter, and

struck the main and tail rotor blades

resulting in a tail rotor imbalance and

subsequent departure of the tail rotor

gear box from the helicopter. The

actions specified by this AD are

intended to prevent the cowling doors

opening during flight, separating from

the helicopter and impacting the main

or tail rotor blades, and subsequent loss

of control of the helicopter.

DATES: Effective June 2, 2000.

The incorporation by reference of

certain publications listed in the

regulations is approved by the Director

of the Federal Register as of June 2,

2000.

ADDRESSES: The service information

referenced in this AD may be obtained

from American Eurocopter Corporation,

2701 Forum Drive, Grand Prairie, Texas

75053–4005, telephone (972) 641–3460,

fax (972) 641–3527. This information

may be examined at the FAA, Office of

the Regional Counsel, Southwest

Region, 2601 Meacham Blvd., Room

663, Fort Worth, Texas; or at the Office

of the Federal Register, 800 North

Capitol Street, NW., suite 700,

Washington, DC.

FOR FURTHER INFORMATION CONTACT:

Richard A. Monschke, Aerospace

Engineer, FAA, Rotorcraft Directorate,

Rotorcraft Standards Staff, Fort Worth,

Texas 76193–0110, telephone (817)

222–5116, fax (817) 222–5961.

SUPPLEMENTARY INFORMATION: A

proposal to amend part 39 of the Federal

Aviation Regulations (14 CFR part 39) to

include an AD that is applicable to ECD

Model MBB–BK 117 A–1, A–3, A–4, B–

1, B–2, and C–1 helicopters was

published in the Federal Register on

February 4, 2000 (65 FR 5453). That

action proposed to require modifying

the cowling doors to prevent the

cowling doors from opening during

flight.

Interested persons have been afforded

an opportunity to participate in the

making of this amendment. No

comments were received on the

proposal or the FAA’s determination of

the cost to the public. The FAA has

determined that air safety and the

public interest require the adoption of

the rule as proposed.

The FAA estimates that 140

helicopters of U.S. registry will be

Federal Register / Vol. 65, No. 83 / Friday, April 28, 2000 / Rules and Regulations 24873

affected by this AD, that it will take

approximately 28 work hours per

helicopter to accomplish the required

actions, and that the average labor rate

is $60 per work hour. Required parts

will cost approximately $1,620 per

helicopter. Based on these figures, the

total cost impact of the AD on U.S.

operators is estimated to be $462,000.

The regulations adopted herein will

not have a substantial direct effect 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, it is

determined that this final rule does not

have federalism implications under

Executive Order 13132.

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 a new airworthiness directive to

read as follows:

AD 2000–08–16 Eurocopter Deutschland

GMBH: Amendment 39–11702. Docket

No. 99–SW–73–AD.

Applicability: Model MBB–BK 117 A–1, A–

3, A–4, B–1, B–2, and C–1 helicopters, serial

numbers 7001 through 7253 and 7500

through 7523, with transmission door

cowling, left hand, part number (P/N) 117–

23206–51 or 117–233731, right hand, P/N

117–23206–52 or 117–233741, and engine

door cowling left hand, P/N 117–23303–51 or

117–23303–53, right hand, P/N 117–23303–

52 or 117–23303–54, installed, certificated in

any category.

Note 1: This AD applies to each helicopter

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 helicopters 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 within 6 calendar

months, unless accomplished previously.

To prevent the engine and transmission

cowling doors (cowling doors) opening

during flight, separating from the helicopter

and impacting the main or tail rotor blades,

and subsequent loss of control of the

helicopter, accomplish the following:

(a) Modify the cowling doors in accordance

with paragraph 2.B., Work Procedure, and

2.C., Conclusions, of Eurocopter Deutschland

GMBH Service Bulletin SB–MBB–BK 117–

20–109, Revision 2, dated April 30, 1999

(SB).

Note 2: Adjustment and functional testing

of the hook system in accordance with

paragraph 2.B.8 of the SB is critical after

installation.

(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, Regulations

Group, Rotorcraft Directorate, FAA.

Operators shall submit their requests through

an FAA Principal Maintenance Inspector,

who may concur or comment and then send

it to the Manager, Regulations Group.

Note 3: Information concerning the

existence of approved alternative methods of

compliance with this AD, if any, may be

obtained from the Regulations Group.

(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 helicopter

to a location where the requirements of this

AD can be accomplished.

(d) The modification shall be done in

accordance with paragraph 2.B., Work

Procedure, and 2.C., Conclusions, of

Eurocopter Deutschland GMBH Service

Bulletin SB–MBB–BK 117–20–109, Revision

2, dated April 30, 1999. 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 American Eurocopter

Corporation, 2701 Forum Drive, Grand

Prairie, Texas 75053–4005, telephone (972)

641–3460, fax (972) 641–3527. Copies may be

inspected at the FAA, Office of the Regional

Counsel, Southwest Region, 2601 Meacham

Blvd., Room 663, Fort Worth, Texas; or at the

Office of the Federal Register, 800 North

Capitol Street, NW., suite 700, Washington,

DC.

(e) This amendment becomes effective on

June 2, 2000.

Note 4: The subject of this AD is addressed

in Luftfahrt-Bundesamt (the Federal Republic

of Germany) AD No. 1999–302, dated

September 23, 1999.

Issued in Fort Worth, Texas, on April 19,

2000.

Mark R. Schilling,

Acting Manager, Rotorcraft Directorate,

Aircraft Certification Service.

[FR Doc. 00–10290 Filed 4–27–00; 8:45 am]

BILLING CODE 4910–13–P

DEPARTMENT OF TRANSPORTATION

Coast Guard

33 CFR Part 117

[CGD11–00–002]

Drawbridge Operation Regulations;

Sacramento River, CA

AGENCY: Coast Guard, DOT.

ACTION: Notice of temporary deviation

from regulations.

SUMMARY: The Commander, Eleventh

Coast Guard District has approved a

temporary deviation to the regulations

governing the opening of the Walnut

Grove Highway bascule bridge, Mile

26.7, over the Sacramento River at

Walnut Grove, CA. The approval

specifies that the bridge need not open

for vessel traffic from 8 a.m. to 12 p.m.,

April 24 through April 28, 2000 and 8

a.m. to 12 p.m., May 1 through May 5,

2000. The purpose of this deviation is

to allow Sacramento County to perform

essential seismic retrofit repairs.

DATES: Effective period of the deviation

is from 8 a.m., April 24 through 12 p.m.,

May 5, 2000.

FOR FURTHER INFORMATION CONTACT: Mr.

David H. Sulouff, Chief, Bridge Section,

Eleventh Coast Guard District, Building

50–6 Coast Guard Island, Alameda, CA

94501–5100, phone (510) 437–3516.

SUPPLEMENTARY INFORMATION: The

Walnut Grove Highway bascule bridge,

Mile 26.7, over the Sacramento River at

Walnut Grove, CA provides 21 feet

vertical clearance above Mean High

Water when closed. Vessels that can

pass under the bridge without an

opening may do so at all times. This

deviation has been coordinated with

navigation on the waterway. No

objections were received.

The normal drawbridge regulation

requires the bridge to open on demand,

9 a.m. to 5 p.m., November 1 through