6640 Federal Register / Vol. 73, No. 24 / Tuesday, February 5, 2008 / Proposed Rules 

revises the Declared Safe Cyclic Life (DSCL) 

from 33,000 flight cycles to 25,000 flight 

cycles for both the BR715 LP (fan) disc 

assembly P/N BRH10048 and BR715 LP 

compressor (fan) disc assembly P/N 

BRH19253, when installed in the BR700–

715A1–30 engine model and operated against 

the Hawaiian Flight Mission. 

This condition, if not corrected, could 

result in uncontained failure of the LP 

compressor (fan) disc assembly and damage 

to the airplane. 

Actions and Compliance 

(e) No later than 100 flight cycles after the 

effective date of this AD, do the following 

actions, unless already done. 

BR700–715A1–30 Turbofan Engines 

(1) For BR700–715A1–30 turbofan engines, 

amend the Airworthiness Limitations Section 

of the Time Limits Manual SUBTASK 05–10–

01–860–016, (Hawaiian Flight Mission Only) 

by revising the ‘‘GIVEN LIFE A1–30 RATING 

(FLIGHT CYCLES)’’ for both the LP 

compressor (fan) disc assembly P/N 

BRH10048 and LP compressor (fan) disc 

assembly P/N BRH19253 from 33,000 flight 

cycles to 25,000 flight cycles. 

(2) Amend any other Reference, where the 

maximum approved life limit is quoted for 

the LP compressor (fan) disc assembly P/N 

BRH10048 or LP compressor (fan) disc 

assembly P/N BRH19253, when installed in 

the BR700–715A–30 engine model and 

operated under the Hawaiian Flight Mission, 

to the revised maximum approved life limit 

of 25,000 flight cycles. 

BR700–715B1–30 and BR700–715C1–30 

Turbofan Engines 

(3) For BR700–715B1–30 and BR700–

715C1–30 turbofan engines: 

(i) Check to see if the LP compressor (fan) 

disc assembly P/N BRH10048 or LP 

compressor (fan) disc assembly P/N 

BRH19253 is currently, or has previously 

been, installed in the BR700–715A1–30 

engine model and operated under the 

Hawaiian Flight Mission, by checking the 

Life Limited Parts (LLP) Tracking Sheet. 

Information on recording and control of the 

lives of the parts can be found in the 

Airworthiness Limitations Section of the 

Time Limits Manual TASK 05–00–01–800–

001. 

(ii) If the LP compressor (fan) disc 

assembly has not operated, and is not going 

to operate in the Hawaiian Flight Mission, no 

further action is required. 

(iii) If the LP compressor (fan) disc 

assembly has operated in the Hawaiian Flight 

Mission: 

(A) Apply the prorate calculations and 

complete the LLP Tracking Sheet using the 

revised Hawaiian Flight Mission maximum 

approved life limit of 25,000 flight cycles. 

(B) Remove LP compressor (fan) disc 

assemblies from service before reaching 

25,000 flight cycles. 

Other FAA AD Provisions 

(f) Alternative Methods of Compliance: The 

Manager, Engine Certification Office, FAA, 

has the authority to approve alternative 

methods of compliance for this AD, if 

requested using the procedures found in 14 

CFR 39.19. 

Related Information 

(g) Refer to MCAI European Aviation 

Safety Agency Airworthiness Directive 2007–

0116–E, dated May 4, 2007, for related 

information. 

(h) Contact Jason Yang, Aerospace 

Engineer, Engine Certification Office, FAA, 

Engine and Propeller Directorate, 12 New 

England Executive Park, Burlington, MA 

01803; e-mail: Jason.yang@faa.gov; telephone 

(781) 238–7747; fax (781) 238–7199, for more 

information about this AD. 

Issued in Burlington, Massachusetts, on 

January 28, 2008. 

Peter A. White, 

Assistant Manager, Engine and Propeller 

Directorate, Aircraft Certification Service. 

[FR Doc. E8–2039 Filed 2–4–08; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2008–0115; Directorate 

Identifier 2007–NM–240–AD] 

RIN 2120–AA64 

Airworthiness Directives; Saab Model 

SAAB 2000 Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to adopt a new 

airworthiness directive (AD) for the 

products listed above. This proposed 

AD results from mandatory continuing 

airworthiness information (MCAI) 

originated by an aviation authority of 

another country to identify and correct 

an unsafe condition on an aviation 

product. The MCAI describes the unsafe 

condition as: 

One LM–219–92 Centre Bracket from an 

LM–219-SA28 Aft Engine Mounting 

assembly was found to be cracked while 

installed on the aircraft. 

This reduces the effectiveness of the 

mounting assembly and could eventually 

cause it to fail. 

* * * * * 

A failed mounting assembly, if not 

corrected, could result in loss of the 

engine. The proposed AD would require 

actions that are intended to address the 

unsafe condition described in the MCAI. 

DATES: We must receive comments on 

this proposed AD by March 6, 2008. 

ADDRESSES: You may send comments by 

any of the following methods: 

• Federal eRulemaking Portal: Go to 

http://www.regulations.gov. Follow the 

instructions for submitting comments. 

• Fax: (202) 493–2251. 

• Mail: U.S. Department of 

Transportation, Docket Operations, 

M–30, West Building Ground Floor, 

Room W12–140, 1200 New Jersey 

Avenue, SE., Washington, DC 20590. 

• Hand Delivery: U.S. Department of 

Transportation, Docket Operations, 

M–30, West Building Ground Floor, 

Room W12–40, 1200 New Jersey 

Avenue, SE., Washington, DC, between 

9 a.m. and 5 p.m., Monday through 

Friday, except Federal holidays. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http:// 

www.regulations.gov; or in person at the 

Docket Operations office between 9 a.m. 

and 5 p.m., Monday through Friday, 

except Federal holidays. The AD docket 

contains this proposed AD, the 

regulatory evaluation, any comments 

received, and other information. The 

street address for the Docket Operations 

office (telephone (800) 647–5527) is in 

the ADDRESSES section. Comments will 

be available in the AD docket shortly 

after receipt. 

FOR FURTHER INFORMATION CONTACT: 

Shahram Daneshmandi, Aerospace 

Engineer, International Branch, ANM–

116, Transport Airplane Directorate, 

FAA, 1601 Lind Avenue, SW., Renton, 

Washington 98057–3356; telephone 

(425) 227–1112; fax (425) 227–1149. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

We invite you to send any written 

relevant data, views, or arguments about 

this proposed AD. Send your comments 

to an address listed under the 

ADDRESSES section. Include ‘‘Docket No. 

FAA–2008–0115; Directorate Identifier 

2007–NM–240–AD’’ at the beginning of 

your comments. We specifically invite 

comments on the overall regulatory, 

economic, environmental, and energy 

aspects of this proposed AD. We will 

consider all comments received by the 

closing date and may amend this 

proposed AD based on those comments. 

We will post all comments we 

receive, without change, to http:// 

www.regulations.gov, including any 

personal information you provide. We 

will also post a report summarizing each 

substantive verbal contact we receive 

about this proposed AD. 

Discussion 

The European Aviation Safety Agency 

(EASA), which is the Technical Agent 

for the Member States of the European 

Community, has issued EASA 


rmajette on PROD1PC64 with PROPOSALS
Federal Register / Vol. 73, No. 24 / Tuesday, February 5, 2008 / Proposed Rules 6641 

Airworthiness Directive 2007–0204, 

dated August 8, 2007 (referred to after 

this as ‘‘the MCAI’’), to correct an unsafe 

condition for the specified products. 

The MCAI states: 

One LM–219–92 Centre Bracket from an 

LM–219–SA28 Aft Engine Mounting 

assembly was found to be cracked while 

installed on the aircraft. 

This reduces the effectiveness of the 

mounting assembly and could eventually 

cause it to fail. 

This AD requires rework in order to make 

the centre bracket less sensitive to external 

damage that may result in a crack. 

A failed mounting assembly, if not 

corrected, could result in loss of the 

engine. The corrective action also 

includes a visual and fluorescent 

penetrant inspection for cracking of the 

center bracket of the aft engine 

mounting assembly for both engines, reidentification of a reworked center 

bracket, additional fluorescent penetrant 

inspections for cracking of the reworked 

center bracket, and replacement of the 

aft engine mounting assembly if any 

cracked center bracket is found. You 

may obtain further information by 

examining the MCAI in the AD docket. 

Relevant Service Information 

Saab has issued Saab 2000 Service 

Bulletin 2000–71–025, dated June 13, 

2007. The actions described in this 

service information are intended to 

correct the unsafe condition identified 

in the MCAI. 

FAA’s Determination and Requirements 

of This Proposed AD 

This product has been approved by 

the aviation authority of another 

country, and is approved for operation 

in the United States. Pursuant to our 

bilateral agreement with the State of 

Design Authority, we have been notified 

of the unsafe condition described in the 

MCAI and service information 

referenced above. We are proposing this 

AD because we evaluated all pertinent 

information and determined an unsafe 

condition exists and is likely to exist or 

develop on other products of the same 

type design. 

Differences Between This AD and the 

MCAI or Service Information 

We have reviewed the MCAI and 

related service information and, in 

general, agree with their substance. But 

we might have found it necessary to use 

different words from those in the MCAI 

to ensure the AD is clear for U.S. 

operators and is enforceable. In making 

these changes, we do not intend to differ 

substantively from the information 

provided in the MCAI and related 

service information. 

We might also have proposed 

different actions in this AD from those 

in the MCAI in order to follow FAA 

policies. Any such differences are 

highlighted in a NOTE within the 

proposed AD. 

Costs of Compliance 

Based on the service information, we 

estimate that this proposed AD would 

affect about 6 products of U.S. registry. 

We also estimate that it would take 

about 8 work-hours per product to 

comply with the basic requirements of 

this proposed AD. The average labor 

rate is $80 per work-hour. Based on 

these figures, we estimate the cost of the 

proposed AD on U.S. operators to be 

$3,840, or $640 per product. 

Authority for This Rulemaking 

Title 49 of the United States Code 

specifies the FAA’s authority to issue 

rules on aviation safety. Subtitle I, 

section 106, describes the authority of 

the FAA Administrator. ‘‘Subtitle VII: 

Aviation Programs,’’ describes in more 

detail the scope of the Agency’s 

authority. 

We are issuing this rulemaking under 

the authority described in ‘‘Subtitle VII, 

Part A, Subpart III, Section 44701: 

General requirements.’’ Under that 

section, Congress charges the FAA with 

promoting safe flight of civil aircraft in 

air commerce by prescribing regulations 

for practices, methods, and procedures 

the Administrator finds necessary for 

safety in air commerce. This regulation 

is within the scope of that authority 

because it addresses an unsafe condition 

that is likely to exist or develop on 

products identified in this rulemaking 

action. 

Regulatory Findings 

We determined that this proposed AD 

would not have federalism implications 

under Executive Order 13132. This 

proposed AD would 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. 

For the reasons discussed above, I 

certify 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. 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. 

We prepared a regulatory evaluation 

of the estimated costs to comply with 

this proposed AD and placed it in the 

AD docket. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Safety. 

The Proposed Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA proposes to amend 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. The FAA amends § 39.13 by adding 

the following new AD: 

SAAB Aircraft AB: Docket No. FAA–2008–

0115; Directorate Identifier 2007–NM–

240–AD. 

Comments Due Date 

(a) We must receive comments by March 6, 

2008. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to Saab Model SAAB 

2000 airplanes, certificated in any category, 

serial number 004 through 063. 

Subject 

(d) Air Transport Association (ATA) of 

America Code 71: Power Plant. 

Reason 

(e) The mandatory continuing 

airworthiness information (MCAI) states: 

One LM–219–92 Centre Bracket from an 

LM–219–SA28 Aft Engine Mounting 

assembly was found to be cracked while 

installed on the aircraft. 

This reduces the effectiveness of the 

mounting assembly and could eventually 

cause it to fail. 

This AD requires rework in order to make 

the centre bracket less sensitive to external 

damage that may result in a crack. 

A failed mounting assembly, if not corrected, 

could result in loss of the engine. The 

corrective action also includes a visual and 

fluorescent penetrant inspection for cracking 

of the center bracket of the aft engine 

mounting assembly for both engines, reidentification of a reworked center bracket, 

additional fluorescent penetrant inspections 

for cracking of the reworked center bracket, 

and replacement of the aft engine mounting 

assembly if any cracked center bracket is 

found. 

Actions and Compliance 

(f) Unless already done, do the following 

actions in accordance with the 


rmajette on PROD1PC64 with PROPOSALS
6642 Federal Register / Vol. 73, No. 24 / Tuesday, February 5, 2008 / Proposed Rules 

Accomplishment Instructions of Saab 2000 

Service Bulletin 2000–71–025, dated June 13, 

2007. 

(1) Within 1,000 flight hours after the 

effective date of this AD, do a visual and a 

fluorescent penetrant inspection for cracking 

of the center bracket of both of the aft engine 

mounting assemblies. 

(2) If no cracking is found during the 

inspections required by paragraph (f)(1) of 

this AD, within 4,000 flight hours after the 

effective date of this AD, rework the center 

bracket of the aft engine mounting assembly, 

do fluorescent penetrant inspections for 

cracking of the reworked bracket, and reidentify with new part numbers the reworked 

center bracket and the applicable aft engine 

mounting assembly. 

(3) If any cracking is found during any 

inspection required by paragraph (f)(1) or 

(f)(2) of this AD, before further flight, replace 

the aft engine mounting assembly, and 

rework and re-identify the center bracket. 

FAA AD Differences 

Note: This AD differs from the MCAI and/ 

or service information as follows: 

(1) Although the MCAI or service 

information allows further flight after cracks 

are found during compliance with the 

required action, paragraph (f)(3) of this AD 

requires that you replace the aft engine 

mounting assembly before further flight. 

Other FAA AD Provisions 

(g) The following provisions also apply to 

this AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, International 

Branch, Transport Airplane Directorate, 

ANM–116, FAA, has the authority to approve 

AMOCs for this AD, if requested using the 

procedures found in 14 CFR 39.19. Send 

information to ATTN: Shahram 

Daneshmandi, Aerospace Engineer, 

International Branch, ANM–116, Transport 

Airplane Directorate, FAA, 1601 Lind 

Avenue, SW., Renton, Washington 98057–

3356; telephone (425) 227–1112; fax (425) 

227–1149. Before using any approved AMOC 

on any airplane to which the AMOC applies, 

notify your appropriate principal inspector 

(PI) in the FAA Flight Standards District 

Office (FSDO), or lacking a PI, your local 

FSDO. 

(2) Airworthy Product: For any requirement 

in this AD to obtain corrective actions from 

a manufacturer or other source, use these 

actions if they are FAA-approved. Corrective 

actions are considered FAA-approved if they 

are approved by the State of Design Authority 

(or their delegated agent). You are required 

to assure the product is airworthy before it 

is returned to service. 

(3) Reporting Requirements: For any 

reporting requirement in this AD, under the 

provisions of the Paperwork Reduction Act, 

the Office of Management and Budget (OMB) 

has approved the information collection 

requirements and has assigned OMB Control 

Number 2120–0056. 

Related Information 

(h) Refer to MCAI European Aviation 

Safety Agency (EASA) Airworthiness 

Directive 2007–0204, dated August 8, 2007, 

and Saab 2000 Service Bulletin 2000–71–025, 

dated June 13, 2007, for related information. 

Issued in Renton, Washington, on January 

24, 2008. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. E8–1992 Filed 2–4–08; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF HOMELAND 

SECURITY 

Coast Guard 

33 CFR Part 138 

[USCG 2005–21780] 

RIN 1625–AA98 

Financial Responsibility for Water 

Pollution (Vessels) and OPA 90 Limits 

of Liability (Vessels and Deepwater 

Ports) 

AGENCY: Coast Guard, DHS. 

ACTION: Notice of proposed rulemaking. 

SUMMARY: The Coast Guard proposes to 

amend the regulatory requirements, 

under the Oil Pollution Act of 1990 and 

the Comprehensive Environmental 

Response, Compensation and Liability 

Act, for vessel operators to establish and 

maintain evidence of financial 

responsibility. The amendments would 

ensure the amounts of financial 

responsibility demonstrated are 

consistent with recent statutory 

increases, and future mandated 

increases, in the limits of liability under 

the Oil Pollution Act of 1990. The 

amendments would also implement 

changes in the Coast Guard’s 

administration of the certificate of 

financial responsibility program, and 

would clarify the current rule. 

DATES: Comments and related material 

must reach the Docket Management 

Facility on or before May 5, 2008. 

Comments sent to the Office of 

Management and Budget (OMB) on 

collection of information must reach 

OMB on or before May 5, 2008. 

ADDRESSES: You may submit comments 

identified by Coast Guard docket 

number USCG–2005–21780 to the 

Docket Management Facility at the U.S. 

Department of Transportation. To avoid 

duplication, please use only one of the 

following methods: 

(1) Online: http:// 

www.regulations.gov. 

(2) Mail: Docket Management Facility 

(M–30), U.S. Department of 

Transportation, West Building Ground 

Floor, Room W12–140, 1200 New Jersey 

Avenue, SE., Washington, DC 20590–

0001. 

(3) Hand delivery: Room W12–140 on 

the Ground Floor of the West Building, 

1200 New Jersey Avenue, SE., 

Washington, DC 20590 between 9 a.m. 

and 5 p.m., Monday through Friday, 

except Federal holidays. The telephone 

number is 202–366–9329. 

(4) Fax: 202–493–2251. 

You must also send comments on 

collection of information to the Office of 

Information and Regulatory Affairs, 

Office of Management and Budget. To 

ensure that the comments are received 

on time, the preferred method is by email at nlesser@omb.eop.gov or fax at 

202–395–6566. An alternate, though 

slower, method is by U.S. mail to the 

Office of Information and Regulatory 

Affairs, Office of Management and 

Budget, 725 17th Street, NW., 

Washington, DC 20503, ATTN: Desk 

Officer, U.S. Coast Guard. 

FOR FURTHER INFORMATION CONTACT: If 

you have questions on this proposed 

rule, call Benjamin White, National 

Pollution Funds Center, Coast Guard, 

telephone 202–493–6863. If you have 

questions on viewing or submitting 

material to the docket, call Renee V. 

Wright, Program Manager, Docket 

Operations, telephone 202–366–9826. 

SUPPLEMENTARY INFORMATION: 

I. Public Participation and Request for 

Comments 

We encourage you to participate in 

this rulemaking by submitting 

comments and related materials. All 

comments received will be posted, 

without change, to http:// 

www.regulations.gov and will include 

any personal information you have 

provided. We have an agreement with 

the Department of Transportation (DOT) 

to use the Docket Management Facility. 

Please see DOT’s ‘‘Privacy Act’’

paragraph below. 

A. Submitting Comments 

If you submit a comment, please 

include the docket number for this 

rulemaking (USCG–2005–21780), 

indicate the specific section of this 

document to which each comment 

applies, and give the reason for each 

comment. We recommend that you 

include your name and a mailing 

address, an e-mail address, or a phone 

number in the body of your document 

so that we can contact you if we have 

questions regarding your submission. 

For example, we may ask you to 

resubmit your comment if we are not 

able to read your original submission. 

You may submit your comments and 

material by electronic means, mail, fax, 


rmajette on PROD1PC64 with PROPOSALS