17290 Federal Register / Vol. 78, No. 55 / Thursday, March 21, 2013 / Rules and Regulations 

(ii) For Model 767–400ER series airplanes: 

Boeing Service Bulletin 767–27–0205, dated 

January 27, 2005; or Boeing Service Bulletin 

767–27–0205, Revision 1, dated February 12, 

2009. 

(2) This paragraph provides credit for the 

actions required by paragraphs (h) and (l) of 

this AD, if the actions were performed before 

the effective date of this AD using Boeing 

Alert Service Bulletin 767–27A0224, dated 

June 23, 2011, which is not incorporated by 

reference. 

(3) This paragraph provides credit for the 

actions required by paragraph (i) of this AD, 

if the actions were performed before the 

effective date of this AD using Boeing Alert 

Service Bulletin 767–49A0035, Revision 1, 

dated December 11, 2003, which is not 

incorporated by reference. 

(4) This paragraph provides credit for the 

actions required by paragraph (j) of this AD, 

if the actions were performed before the 

effective date of this AD using Boeing Alert 

Service Bulletin 767–51A0027, dated 

December 9, 2004 (for Model 767–200, –300, 

and –300F series airplanes); or Boeing Alert 

Service Bulletin 767–51A0028, dated 

December 9, 2004 (for Model 767–400ER 

series airplanes); which are not incorporated 

by reference. 

(n) Alternative Methods of Compliance 

(AMOCs) 

(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. In accordance with 14 CFR 39.19, 

send your request to your principal inspector 

or local Flight Standards District Office, as 

appropriate. If sending information directly 

to the manager of the ACO, send it to the 

attention of the person identified in the 

Related Information section of this AD. 

Information may be emailed to: 9-ANMSeattle-ACO-AMOC-Requests@faa.gov. 

(2) Before using any approved AMOC, 

notify your appropriate principal inspector, 

or lacking a principal inspector, the manager 

of the local flight standards district office/ 

certificate holding district office. 

(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. 

(o) Related Information 

For more information about this AD, 

contact Kelly McGuckin, Aerospace 

Engineer, Systems and Equipment Branch, 

ANM–130S, FAA, Seattle Aircraft 

Certification Office, 1601 Lind Avenue SW., 

Renton, WA 98057–3356; phone: (425) 917– 

6490; fax: (425) 917–6590; email: 

Kelly.McGuckin@faa.gov. 

(p) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) of the service information listed in this 

paragraph under 5 U.S.C. 552(a) and 1 CFR 

part 51. 

(2) You must use this service information 

as applicable to do the actions required by 

this AD, unless the AD specifies otherwise. 

(i) Boeing Service Bulletin 767–27–0204, 

Revision 2, dated August 16, 2011. 

(ii) Boeing Service Bulletin 767–27–0205, 

Revision 2, dated August 30, 2011. 

(iii) Boeing Service Bulletin 767–27A0224, 

Revision 1, dated December 16, 2011. 

(iv) Boeing Service Bulletin 767–49A0035, 

Revision 2, dated June 2, 2006. 

(v) Boeing Service Bulletin 767–51A0027, 

Revision 1, dated October 12, 2006. 

(vi) Boeing Service Bulletin 767–51A0028, 

Revision 1, dated October 12, 2006. 

(3) 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; Internet https:// 

www.myboeingfleet.com. 

(4) You may view this 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. 

(5) You may view this 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/cfr/ibrlocations.html. 

Issued in Renton, Washington, on February 

28, 2013. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2013–05588 Filed 3–20–13; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2008–0847; Directorate 

Identifier 2008–NM–056–AD; Amendment 

39–17375; AD 2013–05–03] 

RIN 2120–AA64 

Airworthiness Directives; The Boeing 

Company Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for certain 

The Boeing Company Model 777–200, 

–200LR, –300, and –300ER series 

airplanes. This AD was prompted by 

fuel system reviews conducted by the 

manufacturer. This AD requires doing 

an inspection to identify the part 

number of the motor-operated valve 

(MOV) actuators of the main and center 

fuel tanks; replacing certain MOV 

actuators with new MOV actuators; and 

measuring the electrical resistance of 

the bond from the adapter plate to the 

airplane structure, and doing corrective 

actions if necessary. We are issuing this 

AD to prevent electrical current from 

flowing through an MOV actuator into 

a fuel tank, which could create a 

potential ignition source inside the fuel 

tank. This condition, in combination 

with flammable fuel vapors, could result 

in a fuel tank explosion and consequent 

loss of the airplane. 

DATES: This AD is effective April 25, 

2013. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in the AD 

as of April 25, 2013. 

ADDRESSES: For service information 

identified in this AD, contact Boeing 

Commercial Airplanes, Attention: Data 

& Services Management, P.O. Box 3707, 

MC 2H–65, Seattle, WA 98124–2207; 

telephone 206–544–5000, extension 1; 

fax 206–766–5680; 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, WA. 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: 

Rebel Nichols, Aerospace Engineer, 

Propulsion Branch, ANM–140S, Seattle 

Aircraft Certification Office (ACO), 

FAA, 1601 Lind Avenue SW., Renton, 

WA 98057–3356; phone: 425–917–6509; 

fax: 425–917–6590; email: 

rebel.nichols@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a supplemental notice of 

proposed rulemaking (SNPRM) to 

amend 14 CFR part 39 to include an 


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airworthiness directive (AD) that would 

apply to the specified products. That 

SNPRM published in the Federal 

Register on December 23, 2010 (75 FR 

80738). The original NPRM (73 FR 

45893, August 7, 2008) proposed to 

require doing an inspection of the MOV 

actuators of the main and center fuel 

tanks for a certain part number (P/N); 

replacing the MOV actuator with a new 

MOV actuator if necessary; and 

measuring the electrical resistance of 

the bond from the adapter plate to the 

airplane structure, and corrective 

actions if necessary. The original NPRM 

also proposed to require revising the 

Airworthiness Limitations section of the 

Instructions for Continued 

Airworthiness. The SNPRM proposed to 

revise the original NPRM by adding 

airplanes and removing the requirement 

for revising the Airworthiness 

Limitations section of the Instructions 

for Continued Airworthiness. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. The 

following presents the comments 

received on the SNPRM (75 FR 80738, 

December 23, 2010) and the FAA’s 

response to each comment. 

Support for the SNPRM (75 FR 80738, 

December 23, 2010) 

Continental Airlines has no technical 

objections, issues, or comments to the 

SNPRM (75 FR 80738, December 23, 

2010). 

Request To Revise Applicability To 

Include Part Number 

Boeing requested that the 

applicability of the SNPRM (75 FR 

80738, December 23, 2010) be revised to 

include the phrase, ‘‘with MOV actuator 

part number MA20A1001–1 installed.’’ 

Boeing stated that the change will avoid 

future alternative methods of 

compliance (AMOC) requests. 

We disagree with revising the 

applicability of this AD because 

paragraph (c) of this AD clearly defines 

the airplanes affected by this AD. For 

those affected airplanes, paragraph (g) of 

this AD requires inspection of the MOV 

actuators to determine their part 

number. If an MOV actuator with P/N 

MA20A1001–1 is found, that actuator 

must be replaced, as required by 

paragraph (h) of this AD. No change has 

been made to the AD in this regard. 

Request To Allow Installation of 

Certain Parts 

Boeing requested that, if the 

applicability of the SNPRM (75 FR 

80738, December 23, 2010) is not 

revised, we add a statement allowing 

MOV actuators certified after P/N 

MA30A1001 to be installed without 

AMOC approval. Boeing stated that this 

would allow normal maintenance to 

resume once P/N MA20A1001–1 is 

removed. Boeing stated that the aircraft 

configuration with an MOV actuator 

having P/N MA30A1001 becomes the 

mandated configuration, because the 

SNPRM requires the installation of that 

specific part number. Boeing stated that 

the SNPRM would not allow the 

installation of actuators approved after 

P/N MA30A1001 without AMOC 

approval. 

We agree with the commenter’s 

request. In the case of this MOV 

actuator, we will allow—without AMOC 

approval—replacement of the affected 

MOV actuator with a Boeing part. The 

replacement part must be fully 

interchangeable with the part specified 

in Boeing Service Bulletin 777– 

28A0034, Revision 2, dated September 

20, 2010, and must be approved by the 

FAA after September 20, 2010. 

Paragraph (h) of this AD has been 

revised to include this provision. 

Request for Further Investigation 

China Southern Airlines requested 

that we further investigate the ignition 

potential of P/N MA20A1001–1 to find 

a better solution that does not require 

installing the new P/N MA30A1001. 

The commenter stated that it would like 

to see P/N MA30A1001 experience 

better reliability than P/N MA20A1001 

before we require a big cost burden on 

operators. 

We disagree with the request to 

further investigate P/N MA20A1001–1. 

That part number was identified as 

unsafe during the Special Federal 

Aviation Regulation No. 88 (SFAR 88) 

(66 FR 23086, May 7, 2001) system 

safety assessment reviews conducted by 

the manufacturer and must be replaced. 

Steps have been taken to improve the 

reliability of P/N MA30A1001, and that 

part does not have the identified unsafe 

condition that is the subject of this AD. 

No change has been made to this AD in 

this regard. 

Request To Remove Paragraph (i) of the 

SNPRM (75 FR 80738, December 23, 

2010) 

United Airlines (UAL) requested that 

we remove paragraph (i) of the SNPRM 

(75 FR 80738, December 23, 2010), 

which prohibits installation of MOV 

actuators having P/N MA20A1001–1 on 

any airplane as of the effective date of 

this AD. UAL stated that the 777 

Aircraft Maintenance Manual (AMM) 

does not provide sufficient replacement 

instructions for operators to maintain 

compliance with paragraph (i) of the 

SNPRM. UAL stated that the proposed 

rule will cause undue economic 

hardship on operators. UAL also noted 

that similar ADs do not contain a 

similar parts prohibition paragraph. 

UAL also stated that paragraph (h) of the 

SNPRM specifies to do ‘‘all applicable 

corrective actions before further flight’’; 

therefore, an operator would have to 

replace all MOV actuators at the same 

time. 

We disagree with the request to 

remove paragraph (i) of this AD. 

Because an unsafe condition has been 

identified on P/N MA20A1001–1, we 

have determined that P/N MA20A1001– 

1 cannot be allowed for installation. 

This AD requires the replacement of all 

affected MOV actuators from an 

operator’s fleet within the specified 

compliance time; however, the AD does 

not require replacement of all affected 

MOV actuators on an airplane at the 

same time. Operators are allowed to 

replace only one MOV actuator and then 

bring the aircraft back into service. 

Paragraph (h) of this AD does specify 

doing all applicable corrective actions 

before further flight, but the applicable 

corrective actions are those associated 

with the measurement of the electrical 

resistance of the bond. If an operator 

encountered unscheduled removal of P/ 

N MA20A1001–1, that part should be 

replaced with a part having an accepted 

part number (i.e., P/N MA30A1001 or 

other FAA-approved replacement). 

However, according to the provisions of 

paragraph (m) of this AD, operators may 

request approval of an AMOC if the 

request is submitted with substantiating 

data that prove the requested action will 

provide an adequate level of safety. No 

change has been made to the AD in this 

regard. 

Request To Revise Proposed Costs of 

Compliance 

UAL requested that we revise or 

clarify the Costs of Compliance section 

of the SNPRM (75 FR 80738, December 

23, 2010). UAL considered that the 

maximum costs are understated in the 

SNPRM. UAL stated that, since there are 

11 actuators on each airplane, the parts 

costs need to be changed to include 11 

actuators. 

We agree to revise the cost of parts in 

the Costs of Compliance section of this 

AD. Since the labor cost is based on the 

total number of work-hours required to 

replace all 11 actuators, the parts cost 

should also be based on the total cost of 

11 actuators. The Costs of Compliance 

section has been revised accordingly. 


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Request To Permit Omission of Parts 

Inspection or Record Check 

UAL requested that paragraph (g) of 

the SNPRM (75 FR 80738, December 23, 

2010) be revised to include an 

additional paragraph that permits 

operators to omit the parts inspection or 

records check and to permit removal of 

the installed MOV, regardless of the part 

number, and install the new part 

number, in accordance with Boeing 

Service Bulletin 777–28A0034, Revision 

2, dated September 20, 2010. UAL 

stated that this will allow operators to 

avoid costs associated with inspections 

and records checks while achieving the 

same level of safety by ensuring that P/ 

N MA30A1001 is installed. 

We agree to add replacement of the 

MOV actuators as an optional method of 

compliance with the inspection or 

records check required by paragraph (g) 

of this AD. Replacing actuators with 

actuators having part numbers other 

than P/N MA20A1001–1 addresses the 

identified unsafe condition. We have 

added new paragraph (l) to this AD to 

allow the option. We have re-identified 

subsequent paragraphs accordingly. 

Request To Incorporate New 

Information in Information Notice 

UAL requests that operators be 

allowed to incorporate the information 

contained in Boeing Service Bulletin 

Information Notice (IN) 777–28A0034 

IN 04, dated January 6, 2011, as an 

option for compliance with the SNPRM 

(75 FR 80738, December 23, 1010). 

We agree that certain information 

identified in Boeing Service Bulletin IN 

777–28A0034 IN 04, dated January 6, 

2011, should be included in this AD. 

We have added paragraph (k)(1) to this 

AD to specify the correct equipment 

number in the title of the work package 

specified in the Accomplishment 

Instructions of Boeing Service Bulletin 

777–28A0034, Revision 2, dated 

September 20, 2010. Boeing Service 

Bulletin IN 777–28A0034 IN 04, dated 

January 6, 2011, also clarifies certain 

weight and balance changes; however, 

because this AD does not refer to that 

section of Boeing Service Bulletin 777– 

28A0034, Revision 2, dated September 

20, 2010, no change to this AD is 

necessary in this regard. 

Other Changes Made to This AD 

We have added paragraph (k)(2) to 

this AD to exclude airplanes with 

Airline Information Management 

System (AIMS) V1 installed from the 

requirement to replace actuators at the 

spar valve location. The currently 

available MOV actuator installed in 

those locations presents a risk of a latent 

failure of the indication portion of the 

actuator, which could lead to the 

inability to shut fuel off to an engine. 

For AIMS V1-equipped airplanes, the 

risk associated with the creation of an 

ignition source inside the fuel tank will 

need to be eliminated by means other 

than replacing the actuator with P/N 

MA30A1001. Future rulemaking for the 

AIMS V1-equipped airplanes might be 

needed to address this SFAR 88 (66 FR 

23086, May 7, 2001) issue. We have 

coordinated this issue with Boeing. 

We have also clarified paragraph (j) of 

this AD by specifying that credit is 

given for certain actions done ‘‘before 

the effective date of this AD’’ using 

specific service information. We have 

also revised the heading and wording of 

paragraph (j) of this AD. This change 

does not affect the intent of that 

paragraph. 

Conclusion 

We reviewed the relevant data, 

considered the comments received, and 

determined that air safety and the 

public interest require adopting the AD 

with the changes described previously 

and minor editorial changes. We have 

determined that these minor changes: 

• Are consistent with the intent that 

was proposed in the SNPRM (75 FR 

80738, December 23, 2010) for 

correcting the unsafe condition; and 

• Do not add any additional burden 

upon the public than was already 

proposed in the SNPRM (75 FR 80738, 

December 23, 2010). 

We also determined that these 

changes will not increase the economic 

burden on any operator or increase the 

scope of the AD. 

Costs of Compliance 

We estimate that this AD will affect 

127 airplanes of U.S. registry. We 

estimate the following costs to comply 

with this AD: 

ESTIMATED COSTS

Action Labor cost Parts cost Cost per product Cost on U.S. operators 

Inspection of MOV Actuators .................. Up to 6 work-hours × $85 per hour = 

$510.

$0 Up to $510 ............ Up to $64,770. 

We estimate the following costs to do 

any necessary replacements that would 

be required based on the results of the 

inspection. We have no way of 

determining the number of aircraft that 

might need these replacements. 

ON-CONDITION COSTS

Action Labor cost Parts cost Cost per product 

Replacement of 11 MOV Actuators Without Fuel 

Tank Access.

Up to 47 work-hours × $85 per hour = $3,995 .... Up to $60,247 ....... Up to $64,242. 

Replacement of 11 MOV Actuators With Fuel 

Tank Access.

Up to 423 work-hours × $85 per hour = $35,955 Up to $60,247 ....... Up to $96,202. 

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 


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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, 

(2) Is not a ‘‘significant rule’’ under 

DOT Regulatory Policies and Procedures 

(44 FR 11034, February 26, 1979), 

(3) Will not affect intrastate aviation 

in Alaska, and 

(4) 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. 

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 airworthiness 

directive (AD): 

2013–05–03 The Boeing Company: 

Amendment 39–17375; Docket No. 

FAA–2008–0847; Directorate Identifier 

2008–NM–056–AD. 

(a) Effective Date 

This AD is effective April 25, 2013. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to The Boeing Company 

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

series airplanes, certificated in any category, 

as identified in Boeing Service Bulletin 777– 

28A0034, Revision 2, dated September 20, 

2010. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 28, Fuel. 

(e) Unsafe Condition 

This AD results from fuel system reviews 

conducted by the manufacturer. The Federal 

Aviation Administration is issuing this AD to 

prevent electrical current from flowing 

through a motor-operated valve (MOV) 

actuator into a fuel tank, which could create 

a potential ignition source inside the fuel 

tank. This condition, in combination with 

flammable fuel vapors, could result in a fuel 

tank explosion and consequent loss of the 

airplane. 

(f) Compliance 

You are responsible for having the actions 

required by this AD performed within the 

compliance times specified, unless the 

actions have already been done. 

(g) Inspection 

Except as provided by paragraph (l) of this 

AD: Within 60 months after the effective date 

of this AD, do an inspection of the MOV 

actuators of the main and center fuel tanks 

for part number (P/N) MA20A1001–1, in 

accordance with the Accomplishment 

Instructions of Boeing Service Bulletin 777– 

28A0034, Revision 2, dated September 20, 

2010. A review of airplane maintenance 

records is acceptable in lieu of this 

inspection if the part number can be 

conclusively determined from that review. 

(h) Replacement 

Except as provided by paragraphs (k)(1) 

and (k)(2) of this AD, if any MOV actuator 

having P/N MA20A1001–1 is found during 

the inspection required by paragraph (g) of 

this AD, within 60 months after the effective 

date of this AD, replace the MOV actuator 

with either a new or serviceable MOV 

actuator having P/N MA30A1001, or with an 

MOV actuator that meets the criteria 

specified in paragraphs (h)(1) and (h)(2) of 

this AD; and, as applicable, measure the 

electrical resistance of the bond from the 

adapter plate to the airplane structure and do 

all applicable corrective actions; in 

accordance with the Accomplishment 

Instructions of Boeing Service Bulletin 777– 

28A0034, Revision 2, dated September 20, 

2010. Do all applicable corrective actions 

before further flight. 

(1) The replacement MOV actuator must be 

a Boeing part that is approved after the 

issuance of Boeing Service Bulletin 777– 

28A0034, Revision 2, dated September 20, 

2010, by the Manager, Seattle Aircraft 

Certification Office (ACO), FAA; or the 

Boeing Commercial Airplanes Organization 

Designation Authorization (ODA) that has 

been authorized by the Manager, Seattle 

ACO, to approve the part. 

(2) The replacement MOV actuator must be 

fully interchangeable with the part specified 

in Boeing Service Bulletin 777–28A0034, 

Revision 2, dated September 20, 2010. 

(i) Part Installation Prohibition 

As of the effective date of this AD, no 

person may install an MOV actuator, P/N 

MA20A1001–1, on any airplane. 

(j) Credit for Previous Actions 

This paragraph provides credit for the 

actions required by paragraphs (g) and (h) of 

this AD, if those actions were performed 

before the effective date of this AD using 

Boeing Alert Service Bulletin 777–28A0034, 

dated August 2, 2007; or Boeing Alert Service 

Bulletin 777–28A0034, Revision 1, dated 

May 20, 2010; except that replacement of an 

MOV actuator must also include cap sealing 

the bonding jumper, as described in Boeing 

Alert Service Bulletin 777–28A0034, 

Revision 2, dated September 20, 2010; and 

provided that the replacement is an MOV 

actuator identified in paragraph (j)(1) or (j)(2) 

of this AD. Boeing Alert Service Bulletin 

777–28A0034, dated August 2, 2007; and 

Boeing Alert Service Bulletin 777–28A0034, 

Revision 1, dated May 20, 2010; are not 

incorporated by reference in this AD. 

(1) An MOV actuator that has P/N 

MA30A1001. 

(2) An MOV actuator that has a part 

number other than P/N MA20A1001–1 and 

meets the criteria specified in paragraphs 

(h)(1) and (h)(2) of this AD. 

(k) Exceptions to Service Information 

(1) Work Package 9 of the Accomplishment 

Instructions of Boeing Service Bulletin 777– 

28A0034, Revision 2, dated September 20, 

2010, refers to an incorrect part number, 

P/N V8166; the correct part number that must 

be used is P/N V28166. 

(2) For airplanes with Airline Information 

Management System (AIMS) V1 installed: 

MOV actuators at the spar valve locations 

(Work Packages 1 and 2 of the 

Accomplishment Instructions of Boeing 

Service Bulletin 777–28A0034, Revision 2, 

dated September 20, 2010), are not required 

to be replaced. 

(l) Optional Method of Compliance 

Replacing all MOV actuators at the main 

and center fuel tanks, as specified in Boeing 

Service Bulletin 777–28A0034, Revision 2, 

dated September 20, 2010, with new or 

serviceable MOV actuators identified in 

paragraph (l)(1) or (l)(2) of this AD; and, as 

applicable, measuring the electrical 

resistance of the bond from the adapter plate 

to the airplane structure and doing all 

applicable corrective actions; in accordance 

with the Accomplishment Instructions of 

Boeing Service Bulletin 777–28A0034, 

Revision 2, dated September 20, 2010; is an 

acceptable method of compliance with the 

actions required by paragraph (g) of this AD. 

(1) MOV actuators that have P/N 

MA30A1001. 

(2) MOV actuators that have a part number 

other than P/N MA20A1001–1 and meet the 

criteria specified in paragraphs (h)(1) and 

(h)(2) of this AD. 

(m) Alternative Methods of Compliance 

(AMOCs) 

(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. In accordance with 14 CFR 39.19, 

send your request to your principal inspector 

or local Flight Standards District Office, as 

appropriate. If sending information directly 


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to the manager of the ACO, send it to the 

attention of the person identified in the 

Related Information section of this AD. 

Information may be emailed to: 9-ANMSeattle-ACO-AMOC-Requests@faa.gov. 

(2) Before using any approved AMOC, 

notify your appropriate principal inspector, 

or lacking a principal inspector, the manager 

of the local flight standards district office/ 

certificate holding district office. 

(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. 

(n) Related Information 

(1) For more information about this AD, 

contact Rebel Nichols, Aerospace Engineer, 

Propulsion Branch, ANM–140S, FAA, 1601 

Lind Avenue SW., Renton, WA 98057–3356; 

phone: 425–917–6509; fax: 425–917–6590; 

email: rebel.nichols@faa.gov. 

(2) For service information identified in 

this AD, contact Boeing Commercial 

Airplanes, Attention: Data & Services 

Management, P.O. Box 3707, MC 2H–65, 

Seattle, WA 98124–2207; telephone 206– 

544–5000, extension 1; fax 206–766–5680; 

Internet https://www.myboeingfleet.com. 

(o) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) of the service information listed in this 

paragraph under 5 U.S.C. 552(a) and 1 CFR 

part 51. 

(2) You must use this service information 

as applicable to do the actions required by 

this AD, unless the AD specifies otherwise. 

(i) Boeing Service Bulletin 777–28A0034, 

Revision 2, dated September 20, 2010. 

(ii) Reserved. 

(3) For service information identified in 

this AD, contact Boeing Commercial 

Airplanes, Attention: Data & Services 

Management, P.O. Box 3707, MC 2H–65, 

Seattle, WA 98124–2207; telephone 206– 

544–5000, extension 1; fax 206–766–5680; 

Internet https://www.myboeingfleet.com. 

(4) You may view this service information 

at FAA, Transport Airplane Directorate, 1601 

Lind Avenue SW., Renton, WA. For 

information on the availability of this 

material at the FAA, call 425–227–1221. 

(5) You may view this 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/cfr/ibrlocations.html. 

Issued in Renton, Washington, on February 

25, 2013. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2013–05199 Filed 3–20–13; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2012–0597; Directorate 

Identifier 2012–NM–054–AD; Amendment 

39–17377; AD 2013–05–05] 

RIN 2120–AA64 

Airworthiness Directives; The Boeing 

Company Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for certain 

The Boeing Company Model 777–200, 

–200LR, –300, and –300ER series 

airplanes. This AD was prompted by 

reports of in-service events related to 

electrical power system malfunctions 

resulting in damage to electrical load 

management system (ELMS) P200 and 

P300 power panels and the surrounding 

area. This AD requires installing 

enclosure trays to contain debris in 

certain ELMS panels, and replacing 

certain ELMS contactors. We are issuing 

this AD to prevent contactor failures, 

which could result in uncontained hot 

debris flow due to ELMS contactor 

breakdown, consequent smoke and heat 

damage to airplane structure and 

equipment during ground operations, 

and possible injuries to passengers and 

crew. 

DATES: This AD is effective April 25, 

2013. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in the AD 

as of April 25, 2013. 

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; Internet 

https://www.myboeingfleet.com. You 

may review copies of the referenced 

service information at the FAA, 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: 

Georgios Roussos, Aerospace Engineer, 

Systems and Equipment Branch, ANM– 

130S, Seattle Aircraft Certification 

Office (ACO), FAA, 1601 Lind Avenue 

SW., Renton, Washington 98057–3356; 

phone: 425–917–6482; fax: 425–917– 

6590; email: georgios.roussos@faa.gov. 

SUPPLEMENTARY INFORMATION:

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to include an AD that would 

apply to the specified products. That 

NPRM published in the Federal 

Register on June 18, 2012 (77 FR 36206). 

That NPRM proposed to require 

installing enclosure trays to contain 

debris in certain ELMS panels, and 

replacing certain ELMS contactors in 

the P200 and P300 ELMS panels. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. The 

following presents the comments 

received on the proposal (77 FR 36206, 

June 18, 2012) and the FAA’s response 

to each comment. 

Request To Allow Certain Installations 

of Removed Contactors 

Cathay Pacific Airways (Cathay) and 

All Nippon Airways (All Nippon) 

requested that we clarify the proposed 

requirement to discard the removed 

contactors. The commenters requested 

that we identify certain inspection 

criteria that would allow further use of 

these contactors on non-AD-affected 

locations and ease the financial burden 

of discarding removed but serviceable 

power contactors. 

We partially agree with the request. 

The note in paragraphs 3.B.3 and 3.B.4 

of the Accomplishment Instructions of 

Boeing Special Attention Service 

Bulletin 777–24–0112, Revision 2, dated 

December 14, 2011, specifies discarding 

these parts. We agree that power 

contactors that have been appropriately 

overhauled to the manufacturer’s 

original specifications may meet criteria 

for safe operation in non-AD-affected 

locations. But this AD applies to the 

affected airplanes, not the contactors; 

the AD therefore cannot mandate the 

disposition of contactors removed from 


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