950 Federal Register / Vol. 75, No. 4 / Thursday, January 7, 2010 / Proposed Rules 

3For all aircraft manufactured on or after 

December 6, 2010, the sampling interval per 

second is 4. 

21. Amend appendix F to part 135 by 

revising footnote 18 to read as set forth 

below. 

Appendix F to Part 135—Airplane 

Flight Recorder Specifications 

* * * * * 18For all aircraft manufactured on or after 

December 6, 2010, the seconds per sampling 

interval is 0.125. Each input must be 

recorded at this rate. Alternately sampling 

inputs (interleaving) to meet this sampling 

interval is prohibited. 

Issued in Washington, DC, on January 4, 

2010. 

John M. Allen, 

Director, Flight Standards Service. 

[FR Doc. 2010–31 Filed 1–6–10; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2009–1249; Directorate 

Identifier 2009–NM–100–AD] 

RIN 2120–AA64 

Airworthiness Directives; The Boeing 

Company Model 777 Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to adopt a new 

airworthiness directive (AD) for certain 

Model 777 airplanes. This proposed AD 

would require inspecting the bolt, nut, 

and downstop of the slat track assembly 

to determine if the bolt, nut, or stops are 

missing and to determine if the thread 

protrusion of the bolt from the nut is 

within specified limits and parts are 

correctly installed, and related 

investigative and corrective actions if 

necessary. For certain airplanes, this 

proposed AD would also require 

inspecting the slat cans at the outboard 

slat number 3 and 12 outboard main 

track locations for holes and wear 

damage, and corrective actions if 

necessary; and replacing the downstop 

hardware for the outboard slats number 

3 and 12 outboard and inboard main 

track locations. This proposed AD 

results from a report of a hole in the 

inboard main track slat can for outboard 

slat number 12 on a Model 777 airplane. 

The hole was caused when the bolt 

securing the downstop migrated out of 

the fitting and contacted the slat can. 

We are proposing this AD to detect and 

correct damage to the outboard slat 

main track slat cans, which can allow 

fuel leakage into the fixed wing leading 

edge in excess of the capacity of the 

draining system. Excess fuel leakage 

could result in an uncontained fire. 

DATES: We must receive comments on 

this proposed AD by February 22, 2010. 

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 

W12–140, 1200 New Jersey Avenue, SE., 

Washington, DC 20590, between 9 a.m. 

and 5 p.m., Monday through Friday, 

except Federal holidays. 

For service information identified in 

this proposed AD, contact Boeing 

Commercial Airplanes, Attention: Data 

& Services Management, P.O. Box 3707, 

MC 2H–65, Seattle, Washington 98124– 

2207; telephone 206–544–5000, 

extension 1; fax 206–766–5680; e-mail 

me.boecom@boeing.com; Internet 

https://www.myboeingfleet.com. You 

may review copies of the referenced 

service information at the FAA, 

Transport Airplane Directorate, 1601 

Lind Avenue, SW., Renton, Washington. 

For information on the availability of 

this material at the FAA, call 425–227– 

1221 or 425–227–1152. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http:// 

www.regulations.gov; or in person at the 

Docket Management Facility 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 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: 

Duong Tran, Aerospace Engineer, 

Airframe Branch, ANM–120S, FAA, 

Seattle Aircraft Certification Office, 

1601 Lind Avenue, SW., Renton, 

Washington 98057–3356; telephone 

(425) 917–6452; fax (425) 917–6590. 

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–2009–1249; Directorate Identifier 

2009–NM–100–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 because of 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 

We have received a report of a hole 

in the inboard main track slat can for 

outboard slat number 12 on a Model 777 

airplane. The hole was caused when the 

bolt securing the downstop migrated out 

of the fitting and contacted the slat can. 

Each outboard slat main track has a 

downstop attached to the aft end of the 

slat track assembly. The downstop 

consists of two fittings that are secured 

to the track with a bolt and nut. The 

main tracks travel through holes in the 

front spar web when the slat is 

retracted. In areas of the wing where 

fuel is stored, a slat can is installed on 

the fuel side of the spar to surround the 

main track and contain the fuel. It is 

believed that the locking element of the 

nut was not fully engaged, and the nut 

securing the bolt backed off and allowed 

the bolt to migrate out of the fitting and 

contact the slat can. In addition, in 

production it was discovered that a 

downstop was contacting the weld on a 

slat can at the outboard main track 

location on slat numbers 3 and 12. This 

contact could cause wear damage and 

eventually a hole in the slat can. This 

condition, if not corrected, could result 

in fuel leakage into the fixed wing 

leading edge in excess of the capacity of 

the draining system. Fuel leakage could 

result in an uncontained fire. 

Relevant Service Information 

We have reviewed Boeing Alert 

Service Bulletin 777–57A0064, dated 

March 26, 2009. The service bulletin 

describes procedures for doing a 

detailed inspection of the slat main 

track stop hardware to determine if the 

bolt, nut, or stops are missing and to 

determine if the thread protrusion of the 

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Federal Register / Vol. 75, No. 4 / Thursday, January 7, 2010 / Proposed Rules 951 

bolt from the nut is within specified 

limits. For airplanes on which hardware 

is missing or the thread protrusion is 

not within limits, the service bulletin 

describes procedures for doing 

applicable related investigative and 

corrective actions. These related 

investigative actions include measuring 

torque of the nuts of the slat main track 

stop hardware, and doing a detailed 

inspection of the slat can inside of the 

slat can for holes and gouges. The 

corrective actions include repairing or 

replacing the slat can and replacing the 

slat main track stop hardware. 

The service bulletin also describes 

procedures for Group 2 airplanes for 

doing a detailed inspection of the slat 

cans at the outboard slat number 3 and 

12 outboard main track locations for 

holes and wear damage, and corrective 

actions if necessary; and for replacing 

the downstop hardware for the outboard 

slats number 3 and 12 outboard and 

inboard main track locations. The 

corrective actions include replacing the 

slat main track stop hardware, and 

repairing or replacing the slat can. 

The service bulletin specifies that the 

compliance time for the detailed 

inspections and the replacement is 

within 6 months after the issue date of 

the service bulletin. The compliance 

times for the related investigative 

actions range between before further 

flight and within 1,125 days or 6,000 

flight cycles after the issue date of the 

service bulletin (whichever occurs first), 

depending on whether hardware is 

missing or whether damage is within 

the specified limits. The compliance 

times for the corrective actions range 

between before further flight and within 

1,125 days after wear damage is found, 

depending on the severity of the 

damage. 

FAA’s Determination and Requirements 

of This Proposed AD 

We are proposing this AD because we 

evaluated all relevant information and 

determined the unsafe condition 

described previously is likely to exist or 

develop in other products of these same 

type designs. This proposed AD would 

require accomplishing the actions 

specified in the service information 

described previously. 

Costs of Compliance 

We estimate that this proposed AD 

would affect 129 airplanes of U.S. 

registry. The following table provides 

the estimated costs for U.S. operators to 

comply with this proposed AD. 

TABLE—ESTIMATED COSTS

Action Work hours 

Average 

labor rate 

per hour 

Parts Cost per product 

Number of 

U.S.- 

registered 

airplanes 

Fleet cost 

Inspection for Group 1 airplanes.39 $80 $0 $3,120 per inspection 

cycle.

127 $396,240 per inspection 

cycle. 

Inspection for Group 2 airplanes.55 80 0 $4,400 per inspection 

cycle.

2 $8,800 per inspection 

cycle. 

Replacement for Group 2 

airplanes.

8 80 9,267 $9,907 ............................... 2 $19,814. 

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. 

You can find our regulatory 

evaluation and the estimated costs of 

compliance in the AD Docket. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Incorporation by reference, 

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: 

The Boeing Company: Docket No. FAA– 

2009–1249; Directorate Identifier 2009– 

NM–100–AD. 

Comments Due Date 

(a) We must receive comments by February 

22, 2010. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to The Boeing 

Company Model 777–200, –200LR, –300, and 

–300ER airplanes, certificated in any 

category; as identified in Boeing Alert 

Service Bulletin 777–57A0064, dated March 

26, 2009. 

Subject 

(d) Air Transport Association (ATA) of 

America Code 57: Wings. 

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952 Federal Register / Vol. 75, No. 4 / Thursday, January 7, 2010 / Proposed Rules 

Unsafe Condition 

(e) This AD results from a report of a hole 

in the inboard main track slat can for 

outboard slat number 12 on a Model 777 

airplane. The Federal Aviation 

Administration is issuing this AD to detect 

and correct damage to the outboard slat main 

track slat cans, which can allow fuel leakage 

into the fixed wing leading edge in excess of 

the capacity of the draining system. Excess 

fuel leakage could result in an uncontained 

fire. 

Compliance 

(f) You are responsible for having the 

actions required by this AD performed within 

the compliance times specified, unless the 

actions have already been done. 

Inspect the Slat Track Stop Hardware and 

Measure the Torque of the Slat Main Track 

Stop Hardware 

(g) At the applicable time specified in 

paragraph 1.E., ‘‘Compliance,’’ of Boeing 

Alert Service Bulletin 777–57A0064, dated 

March 26, 2009, except as required by 

paragraph (h) of this AD: Do the applicable 

actions specified in paragraphs (g)(1) and 

(g)(2) of this AD. 

(1) For all airplanes: Do a detailed 

inspection of the slat main track stop 

hardware to determine if the bolt, nut, or 

stops are missing and to determine if the 

thread protrusion of the bolt from the nut is 

within specified limits, and do all applicable 

related investigative and corrective actions, 

in accordance with the Accomplishment 

Instructions of Boeing Alert Service Bulletin 

777–57A0064, dated March 26, 2009. Do all 

applicable related investigative and 

corrective actions at the applicable time 

specified in paragraph 1.E., ‘‘Compliance,’’ of 

Boeing Alert Service Bulletin 777–57A0064, 

dated March 26, 2009, except as required by 

paragraph (h) of this AD. 

(2) For airplanes identified as Group 2 

airplanes in Boeing Alert Service Bulletin 

777–57A0064, dated March 26, 2009: Do a 

detailed inspection of the slat cans at the 

outboard slat number 3 and 12 outboard 

main track locations for holes and wear 

damage and all applicable corrective actions, 

and replace the downstop hardware for the 

outboard slats number 3 and 12 outboard and 

inboard main track locations. Do all 

applicable corrective actions at the 

applicable time specified in paragraph 1.E., 

‘‘Compliance,’’ of Boeing Alert Service 

Bulletin 777–57A0064, dated March 26, 

2009. 

Exception to the Service Bulletin 

(h) Where Boeing Alert Service Bulletin 

777–57A0064, dated March 26, 2009, 

specifies a compliance time after the date on 

the service bulletin, this AD requires 

compliance within the specified compliance 

time after the effective date of this AD. 

Alternative Methods of Compliance 

(AMOCs) 

(i)(1) The Manager, Seattle Aircraft 

Certification Office (ACO), 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: 

Duong Tran, Aerospace Engineer, Airframe 

Branch, ANM–120S, FAA, Seattle Aircraft 

Certification Office, 1601 Lind Avenue, SW., 

Renton, Washington 98057–3356; telephone 

(425) 917–6452; fax (425) 917–6590. Or, 

e-mail information to 9-ANM-Seattle-ACOAMOC-Requests@faa.gov. 

(2) To request a different method of 

compliance or a different compliance time 

for this AD, follow the procedures in 14 CFR 

39.19. Before using any approved AMOC on 

any airplane to which the AMOC applies, 

notify your principal maintenance inspector 

(PMI) or principal avionics inspector (PAI), 

as appropriate, or lacking a principal 

inspector, your local Flight Standards District 

Office. The AMOC approval letter must 

specifically reference this AD. 

(3) An AMOC that provides an acceptable 

level of safety may be used for any repair 

required by this AD, if it is approved by the 

Boeing Commercial Airplanes Organization 

Designation Authorization (ODA) that has 

been authorized by the Manager, Seattle 

ACO, to make those findings. For a repair 

method to be approved, the repair must meet 

the certification basis of the airplane, and the 

approval must specifically refer to this AD. 

Issued in Renton, Washington, on 

December 23, 2009. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. E9–31431 Filed 1–6–10; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF COMMERCE 

National Oceanic and Atmospheric 

Administration 

15 CFR Part 922 

Draft Marine Sanitation Device 

Discharge Regulations for the Florida 

Keys National Marine Sanctuary; 

Public Meetings 

AGENCY: National Oceanic and 

Atmospheric Administration (NOAA), 

Department of Commerce (DOC). 

ACTION: Notice of public meetings. 

SUMMARY: This notice advises the public 

that NOAA has scheduled three public 

meetings to obtain comments on the 

proposed rule, issued on November 16, 

2009 (74 FR 58923), to amend the 

regulations implementing the Florida 

Keys National Marine Sanctuary 

(FKNMS or sanctuary) to eliminate the 

exemption that allows discharges of 

biodegradable effluent incidental to 

vessel use and generated by marine 

sanitation devices, and to require 

marine sanitation devices be locked to 

prevent discharges into the sanctuary. 

DATES: Three meetings will be held 

where the public will have 

opportunities to ask questions about the 

proposed rule to amend the vessel 

discharge regulations and provide 

formal comments. The meetings will be 

held from 4:30 p.m. to 6:30 p.m. on the 

following dates and at the indicated 

locations: 

• January 21, 2010: Marathon Garden 

Club, 5270 Overseas Hwy (Mile Marker 

50), Marathon, FL 33050. 

• January 25, 2010: Florida Keys EcoDiscovery Center, 35 East Quay Road, 

Key West, FL 33040. 

• January 27, 2010: Islamorada Public 

Library, Mile Marker 81.5 Bayside, 

Islamorada, FL 33036. 

ADDRESSES: The proposed rule is 

available on the FKNMS Web site 

http://floridakeys.noaa.gov. NOAA is 

currently accepting comments on the 

proposed rule if they are received by 

February 17, 2010. Please see the 

proposed rule for further details and 

instructions on submitting written 

comments on the proposed rule. 

FOR FURTHER INFORMATION CONTACT: 

Sean Morton, Acting Superintendent, 

Florida Keys National Marine 

Sanctuary; 33 East Quay Road, Key 

West, FL 33040; (305) 809–4770. 

SUPPLEMENTARY INFORMATION: 

Sanctuary Background 

The FKNMS was designated by 

Congress in 1990 through the Florida 

Keys National Marine Sanctuary 

Protection Act (FKNMSPA, Pub. L. 101– 

605) and extends approximately 220 

nautical miles southwest from the 

southern tip of the Florida peninsula, 

and is composed of both State and 

Federal waters. The sanctuary’s marine 

ecosystem supports over 6,000 species 

of plants, fishes, and invertebrates, 

including the Nation’s only living coral 

reef that lies adjacent to the continent. 

The area includes one of the largest 

seagrass communities in this 

hemisphere. The primary goal of the 

sanctuary is to protect the marine 

resources of the Florida Keys. Other 

goals of the sanctuary include 

facilitating human uses that are 

consistent with the primary objective of 

resource protection as well as educating 

the public about the Florida Keys 

marine environment. Attracted by this 

subtropical diversity, tourists spend 

more than thirteen million visitor days 

in the Florida Keys each year. In 

addition, the region provides recreation 

and livelihoods for approximately 

80,000 residents. 

Location and Size of Resource 

Management 

FKNMS is 2,900 square nautical miles 

of coastal waters, including the 2001 

addition of the Tortugas Ecological 

WReier-Aviles on DSKGBLS3C1PROD with PROPOSALS