Federal Register / Vol. 78, No. 72 / Monday, April 15, 2013 / Rules and Regulations 22175 

dated April 10, 2003; or Boeing Service 

Bulletin 757–57–0060, dated January 9, 2003. 

(2) For all airplanes, as identified in Boeing 

Service Bulletin 757–57–0060, Revision 4, 

dated December 7, 2012: Boeing Service 

Bulletin 757–57–0060, Revision 2, dated May 

24, 2007; or Boeing Service Bulletin 757–57– 

0060, Revision 3, dated May 9, 2012. 

(3) For all airplanes, as identified in Boeing 

Service Bulletin 757–57–0061, Revision 3, 

dated December 7, 2012: Boeing Service 

Bulletin 757–57–0061, Revision 1, dated May 

24, 2007; or Boeing Service Bulletin 757–57– 

0061, Revision 2, dated May 4, 2012. 

(4) For Group 2 airplanes, as identified in 

Boeing Service Bulletin 757–57–0061, 

Revision 3, dated December 7, 2012: Boeing 

Service Bulletin 757–57–0061, dated 

February 6, 2003. 

(l) No Reporting Requirement 

Although Boeing Service Bulletin 757–57– 

0060, Revision 4, dated December 7, 2012; 

and Boeing Service Bulletin 757–57–0061, 

Revision 3, dated December 7, 2012; specify 

to submit certain information to the 

manufacturer, this AD does not include that 

requirement. 

(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 

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: -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. 

(n) Related Information 

(1) For more information about this AD, 

contact Kevin Nguyen, Aerospace Engineer, 

Propulsion Branch, ANM–140S, FAA, Seattle 

Aircraft Certification Office (ACO), 1601 Lind 

Avenue SW., Renton, WA 98057–3356; 

phone: (425) 917–6501; fax: (425) 917–6590; 

email: kevin.nguyen@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. 

(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 757–57–0060, 

Revision 4, dated December 7, 2012. 

(ii) Boeing Service Bulletin 757–57–0061, 

Revision 3, dated December 7, 2012. 

(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 copies of 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 March 

29, 2013. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2013–08191 Filed 4–12–13; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2012–1036; Directorate 

Identifier 2011–NM–122–AD; Amendment 

39–17408; AD 2013–07–04] 

RIN 2120–AA64 

Airworthiness Directives; Airbus 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: We are superseding an 

existing airworthiness directive (AD) for 

certain Airbus Model A319, A320, and 

A321 series airplanes. That AD 

currently requires installing spacer 

assemblies at the attachment points of 

the YZ-latches of the cargo loading 

system (CLS) in the forward and aft 

cargo compartments, as applicable. This 

new AD also requires modifying the 

attachment points of fixed YZ-latches of 

the CLS lower deck cargo holds on those 

airplanes on which one or both lower 

deck cargo holds have not been 

modified, which terminates the existing 

requirements. This AD was prompted by 

results from tests that have shown that 

the attachment points of the YZ-latches 

of the cargo loading system (CLS) fail 

under maximum loads and reports that 

installation has been applied only on 

one of the lower deck cargo holds, 

instead of on both forward and aft cargo 

holds, and that some airplanes could 

have installed the affected YZ-latches 

through the instructions of the cargo 

conversion manual. We are issuing this 

AD to prevent failure of the attachment 

points of the YZ-latches, which could 

result in unrestrained cargo causing 

damage to the fire protection system, 

hydraulic system, electrical wiring, or 

other equipment located in the forward 

and aft cargo compartments. This 

damage could adversely affect the 

continued safe flight of the airplane. 

DATES: This AD becomes effective May 

20, 2013. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of May 20, 2013. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain other publication listed in 

this AD as of April 12, 2007 (72 FR 

10348, March 8, 2007). 

ADDRESSES: You may examine the AD 

docket on the Internet at http:// 

www.regulations.gov or in person at the 

U.S. Department of Transportation, 

Docket Operations, M–30, West 

Building Ground Floor, Room W12–140, 

1200 New Jersey Avenue SE., 

Washington, DC. 

FOR FURTHER INFORMATION CONTACT: 

Sanjay Ralhan, Aerospace Engineer, 

International Branch, ANM–116, 

Transport Airplane Directorate, FAA, 

1601 Lind Avenue SW., Renton, WA 

98057–3356; telephone (425) 227–1405; 

fax (425) 227–1149. 

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 was published in the Federal 

Register on October 4, 2012 (77 FR 

60653), and proposed to supersede AD 

2007–05–13, Amendment 39–14974 (72 

FR 10348, March 8, 2007). That NPRM 

proposed to correct an unsafe condition 

for the specified products. The 

Mandatory Continuing Airworthiness 

Information (MCAI) states: 

Investigation has revealed that the installed 

Tie Down Points of YZ latches on the Cargo 

Loading System (CLS) of Airbus A319, A320 

and A321 aeroplanes do not withstand the 

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22176 Federal Register / Vol. 78, No. 72 / Monday, April 15, 2013 / Rules and Regulations 

maximum loads in accordance with the 

certification requirements (CS 25.787 

‘‘Stowage compartments’’). 

In case of failure of Tie Down Points, 

unrestrained cargo parts could cause damage 

in the Forward (FWD) and AFT lower deck 

cargo holds (e.g. air conditioning, fire 

protection system, hydraulic system, 

electrical wiring, etc.), and therefore could 

have an impact on the safety of the flight. 

EASA AD 2006–0184 [ which corresponds 

to FAA AD 2007–05–13, Amendment 39– 

14974 (72 FR 10348, March 8, 2007)] was 

issued to require the modification of the 

attachment points of fixed YZ latches of the 

CLS in both FWD and AFT lower deck cargo 

holds, as applicable to aeroplane 

configuration, in accordance with Airbus SB 

A320–25–1294 Revision 01. 

It has recently been identified that for some 

aeroplanes, Airbus SB A320–25–1294 

Revision 01 has been applied only on one of 

the lower deck cargo holds (FWD or AFT) 

while both cargo compartments were 

concerned by the modification, and that 

some aeroplanes could have installed the 

affected YZ [latches] through the instructions 

of the Cargo Conversion Manual. 

For the reasons described above, this 

[EASA] AD, which supersedes EASA AD 

2006–0184, requires modification of the 

attachment points of fixed YZ latches of the 

CLS lower deck cargo holds on those 

aeroplanes on which one or both lower deck 

cargo holds have not been modified. 

This [EASA] AD also prohibits installation 

of the affected YZ latches, identified by Part 

Number (P/N) in Table 1 of Appendix 1 of 

this [EASA] AD, on any aeroplane as 

replacement parts, unless all the attachment 

points of the YZ latch have been modified. 

You may obtain further information 

by examining the MCAI in the AD 

docket. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. We 

considered the comments received. 

Request To Clarify Terminating Action 

Airbus requested that we clarify the 

paragraph identifier specified in the last 

sentence of paragraph (g) of the NPRM 

(77 FR 60653, October 4, 2012). Airbus 

suggested that the correct identifier 

should be paragraph (h) instead of 

paragraph (i) of the NPRM. 

We agree with the commenter and 

have revised paragraph (g) of this AD 

accordingly. 

Request To Revise Airbus Contact 

Information 

Airbus requested that we revise the 

contact information reference to the 

Airbus office of airworthiness from 

EAW to EIAS. 

We agree and have revised the contact 

information specified in paragraph (l)(2) 

of this AD. 

Additional Change Made to This AD 

We have removed table 1 to paragraph 

(h) from this AD. Instead, we have listed 

the subject part numbers in paragraphs 

(h)(1) through (h)(7) of this AD. This 

change does not affect the intent of that 

paragraph. 

Conclusion 

We reviewed the available data, 

including 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 changes: 

• Are consistent with the intent that 

was proposed in the NPRM (77 FR 

60653, October 4, 2012) for correcting 

the unsafe condition; and 

• Do not add any additional burden 

upon the public than was already 

proposed in the NPRM (77 FR 60653, 

October 4, 2012). 

Costs of Compliance 

We estimate that this AD will affect 

about 740 products of U.S. registry. 

The actions that are required by AD 

2007–05–13, Amendment 39–14974 (72 

FR 10348, March 8, 2007), and retained 

in this AD take about 4 work-hours per 

product, at an average labor rate of $85 

per work-hour. Required parts cost 

about $2,049 per product. Based on 

these figures, the estimated cost of the 

currently required actions is $2,389 per 

product. 

We estimate that it will take about 15 

work-hours per product to comply with 

the new basic requirements of this AD. 

The average labor rate is $85 per workhour. Required parts will cost up to 

$2,656 per product. Where the service 

information lists required parts costs 

that are covered under warranty, we 

have assumed that there will be no 

charge for these parts. As we do not 

control warranty coverage for affected 

parties, some parties may incur costs 

higher than estimated here. Based on 

these figures, we estimate the cost of 

this AD to the U.S. operators to be up 

to $2,908,940, or $3,931 per product. 

Authority for This Rulemaking 

Title 49 of the United States Code 

specifies the FAA’s authority to issue 

rules on aviation safety. Subtitle I, 

section 106, describes the authority of 

the FAA Administrator. ‘‘Subtitle VII: 

Aviation Programs,’’ describes in more 

detail the scope of the Agency’s 

authority. 

We are issuing this rulemaking under 

the authority described in ‘‘Subtitle VII, 

Part A, Subpart III, Section 44701: 

General requirements.’’ Under that 

section, Congress charges the FAA with 

promoting safe flight of civil aircraft in 

air commerce by prescribing regulations 

for practices, methods, and procedures 

the Administrator finds necessary for 

safety in air commerce. This regulation 

is within the scope of that authority 

because it addresses an unsafe condition 

that is likely to exist or develop on 

products identified in this rulemaking 

action. 

Regulatory Findings 

We determined that this 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 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. 

We prepared a regulatory evaluation 

of the estimated costs to comply with 

this AD and placed it in the AD docket. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http:// 

www.regulations.gov; or in person at the 

Docket Operations office between 9 a.m. 

and 5 p.m., Monday through Friday, 

except Federal holidays. The AD docket 

contains the NPRM (77 FR 60653, 

October 4, 2012), the regulatory 

evaluation, any comments received, and 

other information. The street address for 

the Docket Operations office (telephone 

(800) 647–5527) is in the ADDRESSES

section. Comments will be available in 

the AD docket shortly after receipt. 

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: 

mstockstill on DSK4VPTVN1PROD with RULES

Federal Register / Vol. 78, No. 72 / Monday, April 15, 2013 / Rules and Regulations 22177 

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 

removing airworthiness directive (AD) 

2007–05–13, Amendment 39–14974 (72 

FR 10348, March 8, 2007), and adding 

the following new AD: 

2013–07–04 Airbus: Amendment 39–17408. 

Docket No. FAA–2012–1036; Directorate 

Identifier 2011–NM–122–AD. 

(a) Effective Date 

This airworthiness directive (AD) becomes 

effective May 20, 2013. 

(b) Affected ADs 

This AD supersedes AD 2007–05–13, 

Amendment 39–14974 (72 FR 10348, March 

8, 2007). 

(c) Applicability 

This AD applies to Airbus Model A319– 

111, –112, –113, –114, –115, –131, –132, and 

–133 airplanes; Model A320–111, –211, –212, 

–214, –231, –232, and –233 airplanes; and 

Model A321–111, –112, –131, –211, –212, 

–213, –231, and –232 airplanes; certificated 

in any category; all manufacturer serial 

numbers. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 25, Equipment/Furnishings. 

(e) Reason 

This AD was prompted by results from 

tests that have shown that the attachment 

points of the YZ-latches of the cargo loading 

system (CLS) fail under maximum loads and 

reports that installation has been applied 

only on one of the lower deck cargo holds, 

instead of on both forward and aft cargo 

holds, and that some airplanes could have 

installed the affected YZ-latches through the 

instructions of the cargo conversion manual. 

We are issuing this AD to prevent failure of 

the attachment points of the YZ-latches, 

which could result in unrestrained cargo 

causing damage to the fire protection system, 

hydraulic system, electrical wiring, or other 

equipment located in the forward and aft 

cargo compartments. This damage could 

adversely affect the continued safe flight 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) Retained Spacer Assembly Installation 

This paragraph restates the requirements of 

paragraph (f) of AD 2007–05–13, Amendment 

39–14974 (72 FR 10348, March 8, 2007). For 

Airbus Model A319, A320, and A321 series 

airplanes identified in paragraphs (g)(1) and 

(g)(2) of this AD: Within 36 months after 

April 12, 2007 (the effective date of AD 

2007–05–13), install spacer assemblies at the 

attachment points of the YZ-latches of the 

CLS in the forward and aft cargo 

compartments, as applicable, in accordance 

with the Accomplishment Instructions of 

Airbus Service Bulletin A320–25–1294, 

Revision 02, dated September 5, 2006. 

Accomplishing the actions in paragraph (h) 

of this AD terminates the requirements of 

paragraph (g) of this AD. 

(1) Airplanes on which one of the 

following has been incorporated in 

production: Airbus Modification 20065, 

20040, 24495, 24848, 24496, 21895, 21896, 

25905, 25907, 22601, 22602, 27187, 28319, 

28322, 28330, 28335, or 31797. 

(2) Airplanes on which one of the 

following has been incorporated in service: 

Airbus Service Bulletin A320–25–1132, 

A320–25–1133, A320–25–1145, A320–25– 

1175, A320–25–1177, A320–25–1276, A320– 

25–1278, A320–28–1134, or A320–28–1141. 

(h) New Modification 

Except for Model A319, A320, and A321 

series airplanes on which both Airbus 

Modifications 32244 and 32245, or both 

Airbus Modifications 32316 and 32317, have 

been incorporated in production, and on 

which no YZ-latch replacements have been 

made since first flight: Within 20 months 

after the effective date of this AD, modify the 

attachment points of fixed YZ-latches of the 

CLS, having a part number (P/N) listed in 

paragraphs (h)(1) through (h)(7) of this AD, 

in both forward and aft lower deck cargo 

holds by adding spacer assemblies having P/ 

N D2557232700000, in accordance with the 

Accomplishment Instructions of Airbus 

Mandatory Service Bulletin A320–25–1294, 

Revision 06, dated July 23, 2010. 

Accomplishing the actions specified in 

paragraph (h) of this AD terminates the 

requirements of paragraph (g) of this AD. 

(1) P/N D 255 7 2380 000. 

(2) P/N D 255 7 2380 002. 

(3) P/N D 255 7 2380 006. 

(4) P/N D 255 7 2380 008. 

(5) P/N D 255 7 2350 002. 

(6) P/N D 255 7 2350 004. 

(7) P/N D 255 7 2350 006. 

(i) Parts Installation Limitation 

As of the effective date of this AD, no 

person may install, on the CLS of any 

airplane, a YZ-latch having a part number 

listed in paragraphs (h)(1) through paragraph 

(h)(7) of this AD, unless it has been modified 

in accordance with the requirements of 

paragraph (h) of this AD. 

(j) Credit for Previous Actions 

(1) This paragraph provides credit for the 

installation required by paragraph (g) of this 

AD, if the installation was performed before 

April 12, 2007 (the effective date of AD 

2007–05–13, Amendment 39–14974 (72 FR 

10348, March 8, 2007), using Airbus Service 

Bulletin A320–25–1294, dated March 14, 

2003; or Revision 01, dated March 27, 2006. 

Neither service bulletin is incorporated by 

reference in this AD. 

(2) This paragraph provides credit for the 

modification required by paragraph (h) of 

this AD, if the modification was performed 

before the effective date of this AD using any 

of the following service information, and the 

additional work is done in accordance with 

the applicable instructions referenced as 

‘‘ADDITIONAL WORK’’ in the 

Accomplishment Instructions of Airbus 

Mandatory Service Bulletin A320–25–1294, 

Revision 06, dated July 23, 2010. 

(i) Airbus Service Bulletin A320–25–1294, 

dated March 14, 2003. 

(ii) Airbus Service Bulletin A320–25–1294, 

Revision 01, dated March 27, 2006. 

(iii) Airbus Service Bulletin A320–25– 

1294, Revision 02, dated September 5, 2006. 

(iv) Airbus Mandatory Service Bulletin 

A320–25–1294, Revision 03, dated January 

22, 2007. 

(v) Airbus Mandatory Service Bulletin 

A320–25–1294, Revision 04, dated March 13, 

2008. 

(vi) Airbus Mandatory Service Bulletin 

A320–25–1294, Revision 05, dated January 

22, 2009. 

(k) Other FAA AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, International 

Branch, ANM–116, Transport Airplane 

Directorate, 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: 

Sanjay Ralhan, Aerospace Engineer, 

International Branch, ANM–116, Transport 

Airplane Directorate, FAA, 1601 Lind 

Avenue SW., Renton, WA 98057–3356; 

telephone (425) 227–1405; fax (425) 227– 

1149. Information may be emailed to: 9– 

ANM–116–AMOC–REQUESTS@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. 

(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. 

(l) Related Information 

(1) Refer to MCAI European Aviation 

Safety Agency AD 2011–0077, dated May 5, 

2011; and the following service information; 

for related information. 

(i) Airbus Mandatory Service Bulletin 

A320–25–1294, Revision 06, dated July 23, 

2010. 

(ii) Airbus Service Bulletin A320–25–1294, 

Revision 02, dated September 5, 2006. 

(2) For service information identified in 

this AD, contact Airbus SAS—EIAS 

(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.airworthmstockstill on DSK4VPTVN1PROD with RULES

22178 Federal Register / Vol. 78, No. 72 / Monday, April 15, 2013 / Rules and Regulations 

eas@airbus.com; Internet http:// 

www.airbus.com. 

(m) 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. 

(3) The following service information was 

approved for IBR on May 20, 2013. 

(i) Airbus Mandatory Service Bulletin 

A320–25–1294, Revision 06, dated July 23, 

2010. 

(ii) Reserved. 

(4) The following service information was 

approved for IBR on of April 12, 2007 (72 FR 

10348, March 8, 2007). 

(i) Airbus Service Bulletin A320–25–1294, 

Revision 02, dated September 5, 2006. 

(ii) Reserved. 

(5) For service information identified in 

this AD, contact Airbus SAS—EIAS 

(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. 

(6) You may review copies of the 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. 

(7) 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 March 

28, 2013. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2013–08570 Filed 4–12–13; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2010–1042; Directorate 

Identifier 2010–NM–094–AD; Amendment 

39–17413; AD 2013–07–09] 

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 737–700, 

–700C, –800, and –900ER series 

airplanes, Model 747–400F series 

airplanes, and Model 767–200 and –300 

series airplanes. This AD was prompted 

by reports indicating that certain crew 

oxygen mask stowage box units were 

possibly delivered with a burr in the 

inlet fitting. The burr might break loose 

during test or operation, and might pose 

an ignition source or cause an inlet 

valve to jam. This final rule adds a step 

to identify and label certain crew 

oxygen mask stowage box units that 

have already been inspected and 

reworked by the supplier, and allows 

operators to install new or serviceable 

crew oxygen mask stowage box units, 

and requires a general visual inspection 

for affected serial numbers of the crew 

oxygen mask stowage box units, and 

replacement or re-identification as 

necessary. We are issuing this AD to 

prevent an ignition source, which could 

result in an oxygen-fed fire; or an inlet 

valve jam in a crew oxygen mask 

stowage box unit, which could result in 

restricted flow of oxygen. 

DATES: This AD is effective May 20, 

2013. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in the AD 

as of May 20, 2013. 

ADDRESSES: For Boeing 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. For 

Intertechnique service information 

identified in this AD, contact Zodiac, 2, 

rue Maurice Mallet—92137 Issy-lesMoulineaux Cedex France; telephone 

+33 1 41 23 23 23; fax +33 1 46 48 83 

87; Internet http://www.zodiac.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: 

Susan L. Monroe, Aerospace Engineer, 

Cabin Safety and Environmental 

Systems Branch, ANM–150S, FAA, 

Seattle Aircraft Certification Office 

(ACO), 1601 Lind Avenue SW., Renton, 

Washington 98057–3356; phone: 425– 

917–6457; fax: 425–917–6590; email: 

susan.l.monroe@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a supplemental notice of 

proposed rulemaking (SNPRM) to 

amend 14 CFR part 39 to include an 

airworthiness directive (AD) that would 

apply to the specified products. That 

SNPRM published in the Federal 

Register on September 7, 2012 (77 FR 

55159). The original NPRM (75 FR 

67637, November 3, 2010) proposed to 

require an inspection for affected serial 

numbers of the crew oxygen mask 

stowage box units; and replacement of 

the crew oxygen mask stowage box unit 

with a new crew oxygen mask stowage 

box unit, if necessary. The SNPRM 

proposed to revise the NPRM by adding 

a step to identify and label certain crew 

oxygen mask stowage box units that 

have already been inspected and 

reworked by the supplier, and allowing 

operators to install new or serviceable 

crew oxygen mask stowage box units. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. The 

following presents the comments 

received on the proposal (77 FR 55159, 

September 7, 2012) and the FAA’s 

response to each comment. 

Support for the SNPRM (77 FR 55159, 

September 7, 2012) 

Boeing stated that it supports the 

SNPRM (77 FR 55159, September 7, 

2012). 

Request for Clarification of 

Determination of the Affected Units 

American Airlines (AA) requested 

that we revise the SNPRM (77 FR 55159, 

September 7, 2012) to clarify the 

method used by the manufacturer to 

determine the affected units, and the 

potential that those units could have 

been inadvertently installed on other 

airplanes. AA explained that Boeing 

Alert Service Bulletin 737–35A1121, 

dated December 14, 2009, provides 

limited background information as to 

how Boeing determined which aircraft 

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