51720 Federal Register / Vol. 77, No. 166 / Monday, August 27, 2012 / Proposed Rules 

(l) New Requirement: Reporting 

Requirement 

Submit a one-time report of the findings 

(both positive and negative) of the 

inspections required by paragraphs (i) and (j) 

of this AD to Airbus, Sebastien Faure, SEES1, 

SAS—EAW (Airworthiness Office), 1 Rond 

Point Maurice Bellonte, 31707 Blagnac 

Cedex, France; telephone +33 5 61 93 31 68; 

fax +33 5 61 93 36 14; email 

sebastien.s.faure@airbus.com, at the 

applicable time specified in paragraph (l)(1) 

or (l)(2) of this AD. 

(1) If the inspection was done on or after 

the effective date of this AD: Submit the 

report within 30 days after the inspection. 

(2) If the inspection was done before the 

effective date of this AD: Submit the report 

within 30 days after the effective date of this 

AD. 

(m) New Requirement: Terminating Action 

Accomplishment of the one-time eddy 

current inspection or a liquid penetrant 

inspection required by paragraph (j) of this 

AD, including doing all applicable repairs, 

constitutes terminating action for the 

inspections required by paragraph (i) of this 

AD. 

(n) Other FAA AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, International 

Branch, ANM–116, 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 International Branch, send it to ATTN: 

Dan Rodina, Aerospace Engineer, 

International Branch, ANM–116, Transport 

Airplane Directorate, FAA, 1601 Lind 

Avenue SW., Renton, WA 98057–3356; 

phone: (425) 227–2125; fax: (425) 227–1149; 

email: Dan.Rodina@faa.gov. Information may 

be emailed to: 9-ANM-116-AMOCREQUESTS@faa.gov. 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. The AMOC approval letter 

must specifically reference this AD. AMOCs 

approved previously in accordance with AD 

2010–06–05, Amendment 39–16229 (75 FR 

11435, March 11, 2010), are approved as 

AMOCs for the corresponding provisions of 

this AD. 

(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: A federal 

agency may not conduct or sponsor, and a 

person is not required to respond to, nor 

shall a person be subject to a penalty for 

failure to comply with a collection of 

information subject to the requirements of 

the Paperwork Reduction Act unless that 

collection of information displays a current 

valid OMB Control Number. The OMB 

Control Number for this information 

collection is 2120–0056. Public reporting for 

this collection of information is estimated to 

be approximately 5 minutes per response, 

including the time for reviewing instructions, 

completing and reviewing the collection of 

information. All responses to this collection 

of information are mandatory. Comments 

concerning the accuracy of this burden and 

suggestions for reducing the burden should 

be directed to the FAA at: 800 Independence 

Ave. SW., Washington, DC 20591, Attn: 

Information Collection Clearance Officer, 

AES–200. 

(o) Related Information 

(1) Refer to MCAI EASA Airworthiness 

Directive 2011–0163, dated August 30, 2011, 

and the service information in paragraphs 

(o)(1)(i) through (o)(1)(vi) of this AD, for 

related information. 

(i) Airbus All Operator Telex A300– 

53A0391, dated August 9, 2011. 

(ii) Airbus All Operator Telex A300– 

57A6111, dated August 9, 2011. 

(iii) Airbus Mandatory Service Bulletin 

A300–57A6108, including Appendices 01 

and 02, dated September 12, 2008. 

(iv) Airbus Mandatory Service Bulletin 

A300–53A0387, including Appendices 01 

and 02, dated September 12, 2008. 

(v) Airbus Service Bulletin A300–53–0268, 

Revision 06, dated January 7, 2002. 

(vi) Airbus Service Bulletin A300–57– 

6052, Revision 03, dated May 27, 2002, 

including Airbus Drawings 15R53810394, 

Issue A, dated December 21, 1998, and 

21R57110247, Issue A, dated June 20, 1997. 

(2) For service information identified in 

this AD, contact Airbus SAS—EAW 

(Airworthiness Office), 1 Rond Point Maurice 

Bellonte, 31707 Blagnac Cedex, France; 

telephone +33 5 61 93 36 96; fax +33 5 61 

93 44 51; email account.airwortheas@airbus.com; Internet http:// 

www.airbus.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. 

Issued in Renton, Washington, on August 

17, 2012. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2012–20966 Filed 8–24–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2012–0860; Directorate 

Identifier 2012–NM–123–AD] 

RIN 2120–AA64 

Airworthiness Directives; The Boeing 

Company 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 

The Boeing Company Model 737–600, 

–700, –800, and –900ER series 

airplanes. This proposed AD was 

prompted by incorrect wire support 

clamps installed within the left 

environmental cooling systems (ECS) 

bay, which could allow wiring to come 

in contact with the exposed metal of the 

improper clamp. This proposed AD 

would require inspections to identify 

the part number of the wire support 

clamp, related investigative actions, and 

corrective actions if necessary. We are 

proposing this AD to prevent electrical 

arcing and a potential ignition source, 

which in combination with flammable 

fuel vapors could result in a fuel tank 

explosion, and consequent loss of the 

airplane. 

DATES: We must receive comments on 

this proposed AD by October 11, 2012. 

ADDRESSES: You may send comments, 

using the procedures found in 14 CFR 

11.43 and 11.45, 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: Deliver to Mail 

address above 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; Internet 

https://www.myboeingfleet.com. You 

may review copies of the referenced 

service information at the FAA, 

Transport Airplane Directorate, 1601 


pmangrum on DSK3VPTVN1PROD with PROPOSALS-1
Federal Register / Vol. 77, No. 166 / Monday, August 27, 2012 / Proposed Rules 51721 

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 proposed AD, the 

regulatory evaluation, any comments 

received, and other information. The 

street address for the Docket Office 

(phone: 800–647–5527) is in the 

ADDRESSES section. Comments will be 

available in the AD docket shortly after 

receipt. 

FOR FURTHER INFORMATION CONTACT: 

Georgios Roussos, Aerospace Engineer, 

Systems and Equipment Branch, ANM– 

130S, FAA, Seattle Aircraft Certification 

Office, 1601 Lind Avenue SW., Renton, 

WA 98057–3356; phone: 425–917–6482; 

fax: 425–917–6590; email: 

georgios.roussos@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

We invite you to send any written 

relevant data, views, or arguments about 

this proposal. Send your comments to 

an address listed under the ADDRESSES

section. Include ‘‘Docket No. FAA– 

2012–0860; Directorate Identifier 2012– 

NM–123–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 reviewed reports of incorrect wire 

support clamps installed within the left 

ECS bay, which is a flammable leakage 

zone. Use of incorrect wire support 

clamps that are not fully cushioned 

could allow electrical power wiring to 

come in contact with the exposed metal 

of the improper clamp. Power wiring 

shorts to the exposed metal of the wire 

support clamp could produce electrical 

arcing. We are proposing this AD to 

prevent electrical arcing and a potential 

ignition source, which in combination 

with flammable fuel vapors, could result 

in a fuel tank explosion, and consequent 

loss of the airplane. 

Relevant Service Information 

We reviewed Boeing Special 

Attention Service Bulletin 737–28– 

1303, dated April 26, 2012. The service 

information describes procedures for a 

detailed inspection of certain wire 

support clamps to identify part number 

TA0930034–10 wire support clamp and 

related investigative actions to verify 

that the flange cushions completely 

surround the two metal strap sections of 

the wire support clamp and to detect 

any possible chafing of the wire bundle 

within the left side ECS bay, and 

corrective actions if necessary. 

Corrective actions include replacing the 

discrepant clamp with a new or 

serviceable TA0930034–10 wire support 

clamp if the part number is incorrect or 

if the flange cushions do not completely 

surround the two metal strap sections of 

the wire support clamp, and repairing or 

replacing chafed wiring. 

FAA’s Determination 

We are proposing this AD because we 

evaluated all the relevant information 

and determined the unsafe condition 

described previously is likely to exist or 

develop in other products of these same 

type designs. 

Proposed AD Requirements 

This proposed AD would require 

accomplishing the actions specified in 

the service information described 

previously. 

Costs of Compliance 

We estimate that this proposed AD 

affects 297 airplanes of U.S. registry. 

We estimate the following costs to 

comply with this proposed AD: 

ESTIMATED COSTS

Action Labor cost Parts cost Cost per 

product 

Number of 

airplanes 

Cost on U.S. 

operators 

Inspection Group 1 airplanes ............ 10 work-hours × $85 per hour = 

$850.

$0 $850 185 $157,250 

Inspection Group 2 airplanes ............ 2 work-hours × $85 per hour = $170 0 170 112 19,040 

We estimate the following costs to do 

any necessary replacements that would 

be required based on the results of the 

proposed 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 wire support clamp ............................. 1 work-hour × $85 per hour = $85 .............................. $3 $88 

According to the manufacturer, some 

of the costs of this proposed AD may be 

covered under warranty, thereby 

reducing the cost impact on affected 

individuals. We do not control warranty 

coverage for affected individuals. As a 

result, we have included all costs in our 

cost estimate. 

We have received no definitive data 

that would enable us to provide cost 

estimates for the on-condition repair of 

chafed or damaged wiring specified in 

this proposed AD. 

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: 


pmangrum on DSK3VPTVN1PROD with PROPOSALS-1
51722 Federal Register / Vol. 77, No. 166 / Monday, August 27, 2012 / Proposed Rules 

‘‘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), 

(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. 

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 airworthiness 

directive (AD): 

The Boeing Company: Docket No. FAA– 

2012–0860; Directorate Identifier 2012– 

NM–123–AD. 

(a) Comments Due Date 

We must receive comments by October 11, 

2012. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to The Boeing Company 

Model 737–600, -700, -800, and -900ER series 

airplanes; certificated in any category; as 

identified in Boeing Special Attention 

Service Bulletin 737–28–1303, dated April 

26, 2012. 

(d) Subject 

Joint Aircraft System Component (JASC)/ 

Air Transport Association (ATA) of America 

Code 28, Fuel System. 

(e) Unsafe Condition 

This AD was prompted by incorrect wire 

support clamps installed within the left 

environmental cooling systems (ECS) bay, 

which could allow wiring to come in contact 

with the exposed metal of the improper 

clamp. We are issuing this AD to prevent 

electrical arcing and a potential ignition 

source, which in combination with 

flammable fuel vapors could result in a fuel 

tank explosion, and consequent loss of the 

airplane. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Inspection and Corrective Actions 

Within 60 months after the effective date 

of this AD, do a detailed inspection for part 

number TA0930034–10 wire support clamp, 

and do all applicable related investigative 

and corrective actions, in accordance with 

the Accomplishment Instructions of Boeing 

Special Attention Service Bulletin 737–28– 

1303, dated April 26, 2012. Do all applicable 

related investigative and corrective actions 

before further flight. 

(h) Parts Installation Prohibition 

As of the effective date of this AD, no 

person may install a wire support clamp that 

is not part number (P/N) TA0930034–10 

within the left ECS bay of any airplane. 

(i) 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. 

(j) Related Information 

(1) For more information about this AD, 

contact Georgios Roussos, Aerospace 

Engineer, Systems and Equipment Branch, 

ANM–130S, FAA, Seattle Aircraft 

Certification Office, 1601 Lind Avenue SW., 

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

6482; fax: 425–917–6590; email: 

georgios.roussos@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, 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, Transport Airplane Directorate, 

1601 Lind Avenue SW., Renton, Washington. 

For information on the availability of this 

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

Issued in Renton, Washington, on August 

17, 2012. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2012–20967 Filed 8–24–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2012–0859; Directorate 

Identifier 2012–NM–090–AD] 

RIN 2120–AA64 

Airworthiness Directives; The Boeing 

Company Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Proposed rule; rescission. 

SUMMARY: We propose to rescind an 

existing airworthiness directive (AD) 

that applies to certain The Boeing 

Company Model 737–600, –700, –700C, 

–800 and –900 series airplanes; and 

Model 757–200, –200PF, –200CB, and 

–300 series airplanes. The existing AD 

currently requires inspecting to 

determine if certain motor-operated 

shutoff valve actuators for the fuel tanks 

are installed, and related investigative 

and corrective actions if necessary. The 

existing AD also requires revising the 

Airworthiness Limitations (AWLs) 

section of the Instructions for Continued 

Airworthiness to incorporate AWL No. 

28–AWL–21, No. 28–AWL–22, and No. 

28–AWL–24 (for Model 737–600, –700, 

–700C, –800 and –900 series airplanes); 

and No. 28–AWL–23, No. 28–AWL–24, 

and No. 28–AWL–25 (for Model 757– 

200, –200PF, –200CB, and –300 series 

airplanes). We issued that AD to prevent 

electrical energy from lightning, hot 

shorts, or fault current from entering the 

fuel tank through the actuator shaft, 

which could result in fuel tank 


pmangrum on DSK3VPTVN1PROD with PROPOSALS-1