78588 Federal Register / Vol. 75, No. 241 / Thursday, December 16, 2010 / Rules and Regulations 

Authority: 7 U.S.C. 7701–7772 and 7781– 

7786; 7 CFR 2.22, 2.80, and 371.3. 

Section 301.75–15 issued under Sec. 204, 

Title II, Public Law 106–113, 113 Stat. 

1501A–293; sections 301.75–15 and 301.75– 

16 issued under Sec. 203, Title II, Public Law 

106–224, 114 Stat. 400 (7 U.S.C. 1421 note). 

■ 2. In § 301.45–3, paragraph (a), under 

the heading Maine, the entries for 

Aroostook County, Franklin County, 

Penobscot County, Piscataquis County, 

and Somerset County are revised to read 

as follows: 

§ 301.45–3 Generally infested areas. 

(a) * * * 

Maine 

* * * * * 

Aroostook County. The townships of 

Amity, Bancroft, Benedicta, Cary 

Plantation, Crystal, Dyer Brook, 

Forkstown, Glenwood Plantation, 

Haynesville, Hodgdon, Houlton, Island 

Falls, Linneus, Macwahoc Plantation, 

Molunkus, New Limerick, North 

Yarmouth Academy Grant, Oakfield, 

Orient, Reed Plantation, Sherman, 

Silver Ridge, Upper Molunkus, Weston, 

T1 R5 WELS, T2 R4 WELS, T3 R3 

WELS, T4 R3 WELS, and TA R2 WELS. 

* * * * * 

Franklin County. The townships of 

Avon, Carthage, Chesterville, Coplin 

Plantation, Crockertown, Dallas 

Plantation, Davis, Farmington, Freeman, 

Industry, Jay, Jerusalem, Kingfield, 

Lang, Madrid, Mount Abraham, New 

Sharon, New Vineyard, Perkins, 

Phillips, Rangeley, Rangeley Plantation, 

Redington, Salem, Sandy River 

Plantation, Strong, Temple, Washington, 

Weld, Wilton, Wyman, Township 6 

north of Weld, Township D and 

Township E; and the Eustis area. 

* * * * * 

Penobscot County. The townships of 

Alton, Argyle, Bangor City, Bradford, 

Bradley, Brewer City, Burlington, 

Carmel, Carroll Plantation, Charleston, 

Chester, Clifton, Corinna, Corinth, 

Dexter, Dixmont, Drew Plantation, E. 

Millinocket, Eddington, Edinburg, 

Enfield, Etna, Exeter, Garland, 

Glenburn, Grand Falls Plantation, 

Greenbush, Greenfield, Grindstone, 

Hampden, Hermon, Hersey Town, 

Holden, Hopkins Academy Grant, 

Howland, Hudson, Indian Purchase, 

Kenduskeag, Kingman, Lagrange, 

Lakeville, Lee, Levant, Lincoln, Long A, 

Lowell, Mattamiscontis, Mattawamkeag, 

Maxfield, Medway, Milford, 

Millinocket, Newburgh, Newport, Old 

Town City, Orono, Orrington, 

Passadumkeag, Plymouth, Prentiss 

Plantation, Seboesis Plantation, 

Soldiertown, Springfield, Stacyville, 

Stetson, Summit, Veazie, Webster 

Plantation, Winn, Woodville, T1 ND, T1 

R6 WELS, T1 R8 WELS, T2 R8 NWP, T2 

R8 WELS, T2 R9 NWP, T3 R1 NBPP, T3 

R9 NWP, T5 R1 NBPP, TA R7, TA R8, 

and TA R9; and the Patten area. 

Piscataquis County. The townships of 

Abbot, Atkinson, Barnard, Blanchard 

Plantation, Bowerbank, Brownville, 

Dover-Foxcroft, Elliotsville, Greenville, 

Guilford, Katahdin Iron Works, 

Kingsbury Plantation, Lakeview 

Plantation, Medford, Milo, Monson, 

Orneville, Parkman, Sangerville, Sebec, 

Shirley, Veazie Gore, Williamsburg, 

Willimantic, Willington, T1 R9 WELS, 

T2 R9 WELS, T4 R9 NWP, T5 R9 NWP, 

T1 R10 WELS, T1 R11 WELS, T7 R9 

NWP, TA R10 WELS, TA R11 WELS, TB 

R10 WELS, TB R11 WELS, and T2 R10 

WELS. 

* * * * * 

Somerset County. The townships of 

Anson, Athens, Bald Mountain, 

Bingham, Bowtown, Brighton 

Plantation, Cambridge, Canaan, 

Caratunk, Carrying Place, Carrying Place 

Town, Concord Plantation, Cornville, 

Dead River, Detroit, East Moxie, 

Embden, Fairfield, Harmony, Hartland, 

Highland Plantation, Lexington 

Plantation, Madison, Mayfield, Mercer, 

Moscow, Moxie Gore, New Portland, 

Norridgewock, Palmyra, Pittsfield, 

Pleasant Ridge Plantation, Ripley, 

Skowhegan, Smithfield, Solon, St. 

Albans, Starks, The Forks Plantation, 

and West Forks Plantation. 

* * * * * 

Done in Washington, DC, this 9th day of 

December 2010. 

Kevin Shea, 

Acting Administrator, Animal and Plant 

Health Inspection Service. 

[FR Doc. 2010–31460 Filed 12–15–10; 8:45 am] 

BILLING CODE 3410–34–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2007–27042; Directorate 

Identifier 2006–NM–225–AD; Amendment 

39–16531; AD 2010–24–12] 

RIN 2120–AA64 

Airworthiness Directives; The Boeing 

Company Model 777–200, –300, and 

–300ER Series Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for certain 

Model 777–200, –300, and –300ER 

series airplanes. This AD requires 

installing Teflon sleeving under the 

clamps of certain wire bundles routed 

along the fuel tank boundary structure, 

and cap sealing certain penetrating 

fasteners of the main and center fuel 

tanks. This AD results from fuel system 

reviews conducted by the manufacturer. 

We are issuing this AD to prevent 

electrical arcing on the fuel tank 

boundary structure or inside the fuel 

tanks, which could result in a fire or 

explosion. 

DATES: This AD is effective January 20, 

2011. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in the AD 

as of January 20, 2011. 

ADDRESSES: For service information 

identified in this 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. 

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 AD, the regulatory 

evaluation, any comments received, and 

other information. The address for the 

Docket Office (telephone 800–647–5527) 

is the Document Management Facility, 

U.S. Department of Transportation, 

Docket Operations, M–30, West 

Building Ground Floor, Room W12–140, 

1200 New Jersey Avenue, SE., 

Washington, DC 20590. 

FOR FURTHER INFORMATION CONTACT: 

Margaret Langsted, Aerospace Engineer, 

Propulsion Branch, ANM–140S, FAA, 

Seattle Aircraft Certification Office, 

1601 Lind Avenue, SW., Renton, 

Washington 98057–3356; telephone 

(425) 917–6500; fax (425) 917–6590. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a supplemental notice of 

proposed rulemaking (NPRM) to amend 

14 CFR part 39 to include an 

airworthiness directive (AD) that would 

apply to certain Model 777–200, –300, 

and –300ER series airplanes. That 

supplemental NPRM was published in 

the Federal Register on June 18, 2010 

(75 FR 34663). The original NPRM (72 

FR 3956, January 29, 2007) proposed to 

require installing Teflon sleeving under 


jlentini on DSKJ8SOYB1PROD with RULES
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the clamps of certain wire bundles 

routed along the fuel tank boundary 

structure, and cap sealing certain 

penetrating fasteners of the main and 

center fuel tanks. The supplemental 

NPRM proposed to revise the original 

NPRM by adding airplanes and adding 

and removing certain requirements. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. We 

considered the comments received. 

Support for Supplemental NPRM 

Boeing concurred with the content of 

the supplemental NPRM. American 

Airlines has a program in place to 

address the actions in the proposed rule 

and had no objection to the 

supplemental NPRM. 

Request To Extend Compliance Time 

Air Transport Association (ATA), on 

behalf of its member Delta Air Lines Inc. 

(Delta), asked that the 60-month 

compliance time in the supplemental 

NPRM be extended to better align with 

industry standard tank entry intervals. 

Delta stated that the required 

modifications will require entry into the 

main and center fuel tanks, and Delta 

opens those fuel tanks at 8- and 4-year 

intervals, respectively. Delta added that 

the compliance time of 60 months to 

accomplish the corrective action will be 

acceptable for work in the center fuel 

tank but will force main tank entry 

earlier than normally scheduled. 

We do not agree to extend the 

compliance time. In developing an 

appropriate compliance time for this 

action, we considered the urgency 

associated with the subject unsafe 

condition and the practical aspect of 

accomplishing the required 

modification within a period of time 

that corresponds to the normal 

scheduled maintenance for most 

affected operators. In consideration of 

these items, in addition to the unsafe 

condition being electrical arcing in the 

fuel tank, we have determined that a 60- 

month interval will ensure an 

acceptable level of safety. However, 

according to the provisions of paragraph 

(j)(1) of this AD, we may approve 

requests to adjust the compliance time 

if the request includes data proving that 

the requested compliance time would 

provide an acceptable level of safety. 

We have not changed the AD in this 

regard. 

Request To Include Revision 3 of the 

Referenced Service Bulletin 

Continental Airlines (CAL) asked that 

the supplemental NPRM be changed to 

include Revision 3 of Boeing Service 

Bulletin 777–57A0050, instead of 

Revision 2, dated May 14, 2009 (referred 

to for the applicability and for 

accomplishing certain actions in the 

supplemental NPRM). CAL stated that 

including Revision 3 may be necessary 

to avoid the alternative methods of 

compliance approval process because 

technical errors still exist in Revision 2 

of Boeing Service Bulletin 777– 

57A0050. 

We do not agree to include Revision 

3 of the referenced service bulletin in 

this AD, since Revision 3 of Boeing 

Service Bulletin 777–57A0050 has not 

yet been issued. Since Revision 2 of 

Boeing Service Bulletin 777–57A0050 is 

expected to be revised after issuance of 

this AD to correct the discrepancies, we 

might consider approving the revised 

service bulletin as an alternative method 

of compliance (AMOC), according to the 

provisions of paragraph (j)(1) of this AD. 

We have not changed the AD in this 

regard. 

Clarify Instructions for Continued 

Airworthiness (ICA) 

CAL stated that proper ICA must be 

provided in order to prevent inadvertent 

reversal of implemented changes that 

can lead to violation requirements in the 

final rule. CAL added that it requested 

a copy of the ICA from Boeing to review 

and better understand the approach 

being taken to support the Special 

Federal Aviation Regulation No. 88 

(‘‘SFAR 88’’) program; however, the ICA 

has not been received yet. 

We acknowledge the commenter’s 

concern. However, no new ICAs have 

been developed for the design change 

required by this AD. Operators and 

owners are responsible for ensuring that 

the configuration mandated by this AD 

is maintained in accordance with 

section 39.7 of the Federal Aviation 

Regulations (14 CFR 39.7). 

If any new airworthiness limitations 

(AWLs) related to any of the design 

features mandated by this AD are 

developed, we may consider additional 

rulemaking to mandate incorporations 

of those AWLs into operators’ 

maintenance programs. We have not 

changed the AD in regard to this issue. 

The FAA is working with industry to 

evaluate potential changes to the AD 

process that are intended to more 

clearly identify how to maintain 

configurations that are required for AD 

compliance. 

Conclusion 

We reviewed the relevant data, 

considered the comments received, and 

determined that air safety and the 

public interest require adopting the AD 

as proposed. 

Costs of Compliance 

There are 694 airplanes of the affected 

design in the worldwide fleet. This AD 

affects about 129 airplanes of U.S. 

registry. We estimate that it will take 

between 278 and 358 work-hours per 

product to comply with the basic 

requirements of this AD. Required parts 

cost about $2,241 per product. The 

average labor rate is $85 per work-hour. 

Based on these figures, we estimate the 

cost of these actions to the U.S. 

operators to be between $3,337,359 and 

$4,214,559, or $25,871 and $32,671 per 

product, depending on airplane 

configuration. 

Currently, there are no affected Group 

3 airplanes on the U.S. Register. 

However, if a Group 3 airplane is 

imported and placed on the U.S. 

Register in the future, the required 

actions will take about 480 work hours, 

at an average labor rate of $85 per work 

hour. Required parts cost about $2,241 

per product. Based on these figures, we 

estimate the cost of this AD for Group 

3 airplanes to be $43,041 per airplane. 

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 

This AD will not have federalism 

implications under Executive Order 

13132. This AD 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. 

For the reasons discussed above, I 

certify that this AD: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866, 


jlentini on DSKJ8SOYB1PROD with RULES
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(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. 

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. 

Adoption of the Amendment 

■ Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA amends 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: 

2010–24–12 The Boeing Company: 

Amendment 39–16531. Docket No. 

FAA–2007–27042; Directorate Identifier 

2006–NM–225–AD. 

Effective Date 

(a) This airworthiness directive (AD) is 

effective January 20, 2011. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to The Boeing 

Company airplanes, certificated in any 

category, as identified in the applicable 

service information specified in Table 1 of 

this AD. 

TABLE 1—SERVICE INFORMATION

For Model— Boeing— 

777–200, –300, and 

–300ER airplanes.

Service Bulletin 777– 

57A0050, Revision 

2, dated May 14, 

2009. 

777–200 and –300 

airplanes.

Alert Service Bulletin 

777–57A0051, 

dated May 15, 

2006. 

777–200, –300, and 

–300ER airplanes.

Alert Service Bulletin 

777–57A0057, Revision 1, dated August 2, 2007. 

777–200, –300, and 

–300ER airplanes.

Alert Service Bulletin 

777–57A0059, 

dated October 30, 

2008. 

Note 1: Although Boeing Service Bulletin 

777–57A0050, Revision 2, dated May 14, 

2009, refers to ‘‘Model 777–200ER’’ airplanes, 

this is a European designation that does not 

apply to airplanes of U.S. registry. Therefore, 

the applicability of this AD will not specify 

Model 777–200ER airplanes. However, U.S. 

operators should consider any reference to 

Model 777–200ER airplanes in Boeing 

Service Bulletin 777–57A0050, Revision 2, as 

applicable to Model 777–200 airplanes as 

designated by the type certificate data sheet. 

Subject 

(d) Air Transport Association (ATA) of 

America Code 57: Wings. 

Unsafe Condition 

(e) This AD results from fuel system 

reviews conducted by the manufacturer. The 

Federal Aviation Administration is issuing 

this AD to prevent electrical arcing on the 

fuel tank boundary structure or inside the 

main and center fuel tanks, which could 

result in a fire or explosion. 

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. 

Corrective Actions (Installing Teflon 

Sleeving, Cap Sealing, One-Time Inspection) 

(g) Within 60 months after the effective 

date of this AD, do the applicable actions 

specified in paragraph (g)(1), (g)(2), (g)(3), or 

(g)(4) of this AD. 

(1) For airplanes identified in Boeing 

Service Bulletin 777–57A0050, Revision 2, 

dated May 14, 2009: Install Teflon sleeving 

under the clamps of certain wire bundles 

routed along the fuel tank boundary structure 

and cap seal certain penetrating fasteners of 

the fuel tanks, in accordance with the 

Accomplishment Instructions of Boeing 

Service Bulletin 777–57A0050, Revision 2, 

dated May 14, 2009. 

(2) For airplanes identified in Boeing Alert 

Service Bulletin 777–57A0051, dated May 

15, 2006: Cap seal certain penetrating 

fasteners of the fuel tanks, in accordance 

with the Accomplishment Instructions of 

Boeing Alert Service Bulletin 777–57A0051, 

dated May 15, 2006. 

(3) For airplanes identified in Boeing Alert 

Service Bulletin 777–57A0057, Revision 1, 

dated August 2, 2007: Do a general visual 

inspection to determine if certain fasteners 

are cap sealed and do all applicable 

corrective actions, in accordance with the 

Accomplishment Instructions of Boeing Alert 

Service Bulletin 777–57A0057, Revision 1, 

dated August 2, 2007. Do all applicable 

corrective actions before further flight. 

(4) For airplanes identified in Boeing Alert 

Service Bulletin 777–57A0059, dated October 

30, 2008: Cap seal the fasteners in the center 

fuel tanks that were not sealed during 

production, in accordance with the 

Accomplishment Instructions of Boeing Alert 

Service Bulletin 777–57A0059, dated October 

30, 2008. 

Credit for Actions Done Using Previous 

Issues of the Service Bulletins 

(h) Actions done before the effective date 

of this AD in accordance with the 

Accomplishment Instructions of Boeing Alert 

Service Bulletin 777–57A0050, dated January 

26, 2006; or Revision 1, dated August 2, 

2007; are acceptable for compliance with the 

corresponding actions required by paragraph 

(g)(1) of this AD, provided that the applicable 

additional work specified in Boeing Service 

Bulletin 777–57A0050, Revision 2, dated 

May 14, 2009, is done within the compliance 

time specified in paragraph (g) of this AD. 

The additional work must be done in 

accordance with Boeing Service Bulletin 

777–57A0050, Revision 2, dated May 14, 

2009. 

(i) Actions done before the effective date of 

this AD in accordance with the 

Accomplishment Instructions of Boeing Alert 

Service Bulletin 777–57A0057, dated August 

7, 2006, are acceptable for compliance with 

the actions required by paragraph (g)(3) of 

this AD. 

Alternative Methods of Compliance 

(AMOCs) 

(j)(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: 

Margaret Langsted, Aerospace Engineer, 

Propulsion Branch, ANM–140S, FAA, Seattle 

ACO, 1601 Lind Avenue, SW., Renton, 

Washington 98057–3356; telephone (425) 

917–6500; fax (425) 917–6590. Or, e-mail 

information to 9-ANM-Seattle-ACO-AMOCRequests@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. 

Material Incorporated by Reference 

(k) You must use the applicable service 

information contained in Table 2 of this AD 

to do the actions required by this AD, unless 

the AD specifies otherwise. 


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Federal Register / Vol. 75, No. 241 / Thursday, December 16, 2010 / Rules and Regulations 78591 

TABLE 2—MATERIAL INCORPORATED BY REFERENCE

Document— Revision— Date— 

Boeing Alert Service Bulletin 777–57A0051 ................................................................................. Original ........................ May 15, 2006 

Boeing Alert Service Bulletin 777–57A0057 ................................................................................. 1 ................................... August 2, 2007 

Boeing Alert Service Bulletin 777-57A0059 .................................................................................. Original ........................ October 30, 2008 

Boeing Service Bulletin 777–57A0050 .......................................................................................... 2 ................................... May 14, 2009 

(1) The Director of the Federal Register 

approved the incorporation by reference of 

this service information under 5 U.S.C. 

552(a) and 1 CFR part 51. 

(2) For service information identified in 

this 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. 

(3) You may review copies of the 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. 

(4) You may also review copies of the 

service information that is incorporated by 

reference at the National Archives and 

Records Administration (NARA). For 

information on the availability of this 

material at NARA, call 202–741–6030, or go 

to: http://www.archives.gov/federal_register/ 

code_of_federal_regulations/ 

ibr_locations.html. 

Issued in Renton, Washington, on 

November 18, 2010. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2010–30606 Filed 12–15–10; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2008–1098; Directorate 

Identifier 2008–NM–108–AD; Amendment 

39–16532; AD 2010–24–13] 

RIN 2120–AA64 

Airworthiness Directives; The Boeing 

Company Model 747–100, 747–100B, 

747–100B SUD, 747–200B, 747–200C, 

747–200F, 747–300, 747SR, and 747SP 

Series Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for the 

products listed above. This AD requires 

adding two new indicator lights on a 

certain panel to inform the captain and 

first officer of a low pressure condition 

in the left and right override/jettison 

pumps of the center wing tanks. This 

AD also requires replacing the left and 

right override/jettison switches on the 

M154 fuel control module on the P4 

panel with improved switches and 

doing the associated wiring changes. 

This AD also requires, for certain 

airplanes, installation of a mounting 

bracket for the new indicator lights. 

This AD also requires a revision to the 

maintenance program to incorporate 

airworthiness limitation No. 28–AWL– 

22. This AD also requires a revision to 

the airplane flight manual to advise the 

flightcrew what to do in the event that 

the pump low pressure light on the 

flight engineer’s panel does not 

illuminate when the pump is selected 

off. This AD was prompted by fuel 

system reviews conducted by the 

manufacturer. We are issuing this AD to 

prevent uncommanded operation of the 

override/jettison pumps of the center 

wing tanks, and failure to manually shut 

off the override/jettison pumps at the 

correct time, either of which could lead 

to an ignition source inside the center 

wing tank. This condition, in 

combination with flammable fuel 

vapors, could result in a center fuel tank 

explosion and consequent loss of the 

airplane. 

DATES: This AD is effective January 20, 

2011. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in the AD 

as of January 20, 2011. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain other publication listed in 

this AD as of June 12, 2008 (73 FR 

25977, May 8, 2008). 

ADDRESSES: For service information 

identified in this 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. 

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 AD, the regulatory 

evaluation, any comments received, and 

other information. The address for the 

Docket Office (phone: 800–647–5527) is 

Document Management Facility, U.S. 

Department of Transportation, Docket 

Operations, M–30, West Building 

Ground Floor, Room W12–140, 1200 

New Jersey Avenue, SE., Washington, 

DC 20590. 

FOR FURTHER INFORMATION CONTACT: 

Douglas Bryant, Aerospace Engineer, 

Propulsion Branch, ANM–140S, FAA, 

Seattle Aircraft Certification Office, 

1601 Lind Avenue SW., Renton, 

Washington 98057–3356; telephone 

(425) 917–6505; fax (425) 917–6590; email: douglas.n.bryant@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a supplemental notice of 

proposed rulemaking (NPRM) to amend 

14 CFR part 39 to include an 

airworthiness directive (AD) that would 

apply to the specified products. That 

supplemental NPRM published in the 

Federal Register on October 1, 2010 (75 

FR 60661). That supplemental NPRM 

proposed to require adding two new 

indicator lights on the P10 panel to 

inform the captain and first officer of a 

low pressure condition in the left and 

right override/jettison pumps of the 

center wing tanks. That supplemental 

NPRM also proposed to require 

replacing the left and right override/ 

jettison switches on the M154 fuel 

control module on the P4 panel with 

improved switches and doing the 

associated wiring changes. That 

supplemental NPRM also proposed to 

require, for certain airplanes, 

installation of a mounting bracket for 

the new indicator lights. That 

supplemental NPRM also proposed to 

require a revision to the maintenance 

program to incorporate airworthiness 


jlentini on DSKJ8SOYB1PROD with RULES