22432 Federal Register / Vol. 78, No. 73 / Tuesday, April 16, 2013 / Proposed Rules 

facilitator will make every effort to 

allow the presentations of views of all 

interested parties and to facilitate the 

orderly conduct of business. 

Participation in the meeting is not a 

prerequisite for submission of written 

comments. Written comments are 

welcome from all interested parties. 

Any comments submitted must identify 

the Commercial HVAC, WH, and 

Refrigeration Certification Working 

Group, and provide docket number 

EERE–2013–BT–NOC–0023. Comments 

may be submitted using any of the 

following methods: 

1. Federal eRulemaking Portal: 

www.regulations.gov. Follow the 

instructions for submitting comments. 

2. Email: ASRACworkgroup

2013NOC0023@ee.doe.gov. Include 

docket number EERE–2013–BT–NOC– 

0023 in the subject line of the message. 

3. Mail: Ms. Brenda Edwards, U.S. 

Department of Energy, Building 

Technologies Program, Mailstop EE–2J, 

1000 Independence Avenue SW., 

Washington, DC 20585–0121. If 

possible, please submit all items on a 

compact disc (CD), in which case it is 

not necessary to include printed copies. 

4. Hand Delivery/Courier: Ms. Brenda 

Edwards, U.S. Department of Energy, 

Building Technologies Program, 950 

L’Enfant Plaza, SW., Suite 600, 

Washington, DC 20024. Telephone: 

(202) 586–2945. If possible, please 

submit all items on a CD, in which case 

it is not necessary to include printed 

copies. 

No telefacsimilies (faxes) will be 

accepted. 

Docket: The docket is available for 

review at www.regulations.gov, 

including Federal Register notices, 

public meeting attendee lists and 

transcripts, comments, and other 

supporting documents/materials. All 

documents in the docket are listed in 

the www.regulations.gov index. 

However, not all documents listed in 

the index may be publicly available, 

such as information that is exempt from 

public disclosure. 

The Secretary of Energy has approved 

publication of today’s notice of open 

meeting. 

Issued in Washington, DC, on April 9, 

2013. 

Kathleen B. Hogan, 

Deputy Assistant Secretary for Energy 

Efficiency and Renewable Energy. 

[FR Doc. 2013–08872 Filed 4–15–13; 8:45 am] 

BILLING CODE 6450–01–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2013–0329; Directorate 

Identifier 2012–NM–032–AD] 

RIN 2120–AA64 

Airworthiness Directives; Airbus 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to supersede two 

existing airworthiness directives (ADs) 

that apply to certain Airbus Model 

A330–200, A330–200 Freighter, A300– 

300, A340–200, A340–300, A340–500, 

and A340–600 series airplanes. One 

existing AD currently requires revising 

the airplane flight manual (AFM) to 

include appropriate operational 

procedures to prevent the air data 

inertial reference unit (ADIRU) from 

providing erroneous data to other 

airplane systems. The other existing AD 

currently requires revising the AFM to 

provide appropriate operational 

procedures to prevent the airplane flight 

directors (FDs), autopilot (AP), and 

auto-thrust re-engagement in the event 

of airspeed sources providing similar 

but erroneous data. Since we issued that 

AD, we have determined that new 

software standards for the flight control 

primary computers (FCPCs) are 

necessary to inhibit autopilot reengagement under unreliable airspeed 

conditions. This proposed AD would 

require that operators modify or replace 

all three FCPCs with new software 

standards. This proposed AD would 

also remove certain airplanes from the 

applicability. We are proposing this AD 

to prevent autopilot engagement under 

unreliable airspeed conditions, which 

could result in reduced controllability 

of the airplane. 

DATES: We must receive comments on 

this proposed AD by May 31, 2013. 

ADDRESSES: You may send comments by 

any of the following methods: 

• Federal eRulemaking Portal: Go to 

http://www.regulations.gov. Follow the 

instructions for submitting comments. 

• Fax: (202) 493–2251. 

• Mail: U.S. Department of 

Transportation, Docket Operations, M– 

30, West Building Ground Floor, Room 

W12–140, 1200 New Jersey Avenue SE., 

Washington, DC 20590. 

• Hand Delivery: U.S. Department of 

Transportation, Docket Operations, M– 

30, West Building Ground Floor, Room 

W12–140, 1200 New Jersey Avenue SE., 

Washington, DC, between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. 

For service information identified in 

this proposed AD, contact Airbus SAS— 

Airworthiness Office—EAL, 1 Rond 

Point Maurice Bellonte, 31707 Blagnac 

Cedex, France; telephone +33 5 61 93 36 

96; fax +33 5 61 93 45 80; email 

airworthiness.A330–A340@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. 

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 this proposed AD, 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. 

FOR FURTHER INFORMATION CONTACT: 

Vladimir Ulyanov, Aerospace Engineer, 

International Branch, ANM–116, 

Transport Airplane Directorate, FAA, 

1601 Lind Avenue SW., Renton, 

Washington 98057–3356; telephone 

425–227–1138; fax 425–227–1149. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

We invite you to send any written 

relevant data, views, or arguments about 

this proposed AD. Send your comments 

to an address listed under the 

ADDRESSES section. Include ‘‘Docket No. 

FAA–2013–0329; Directorate Identifier 

2012–NM–032–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 based on 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 

On January 23, 2009, we issued AD 

2009–04–07, Amendment 39–15813 (74 

mstockstill on DSK4VPTVN1PROD with PROPOSALS

Federal Register / Vol. 78, No. 73 / Tuesday, April 16, 2013 / Proposed Rules 22433 

FR 7549, February 18, 2009). On January 

12, 2011, we issued AD 2011–02–09, 

Amendment 39–16583 (76 FR 4219, 

January 25, 2011). Those ADs required 

actions intended to address an unsafe 

condition on the products listed above. 

Since we issued those ADs, we have 

determined that new software standards 

for the FCPCs are necessary to inhibit 

autopilot re-engagement under 

unreliable airspeed conditions. The 

European Aviation Safety Agency 

(EASA), which is the Technical Agent 

for the Member States of the European 

Community, has issued EASA AD 2011– 

0199R1, dated February 17, 2012 

(referred to after this as the Mandatory 

Continuing Airworthiness Information, 

or ‘‘the MCAI’’), to correct an unsafe 

condition for the specified products. 

The MCAI states: 

It has been determined that, when there are 

significant differences between all airspeed 

sources, the flight controls of an Airbus A330 

or A340 aeroplane will revert to alternate 

law, the autopilot (AP) and the auto-thrust 

(A/THR) automatically disconnect, and the 

Flight Directors (FD) bars are automatically 

removed. 

Futher analyses have shown that, after 

such an event, if two airspeed sources 

become similar while still erroneous, the 

flight guidance computers will display the 

FD bars again, and enable the re-engagement 

of AP and A/THR. However, in some cases, 

the AP orders may be inappropriate, such as 

possible abrupt pitch command. 

In order to prevent such events which may, 

under specified circumstances, constitute an 

unsafe condition, EASA issued AD 2010– 

0271 [which corresponds to FAA AD 2011– 

02–09, Amendment 39–16583 (76 FR 4219, 

January 25, 2011)] to require an amendment 

of the Flight Manual to ensure that flight 

crews apply the appropriate operational 

procedure. 

Since that [EASA] AD was issued, new 

FCPC software standards have been 

developed that will inhibit autopilot 

engagement under unreliable airspeed 

conditions. 

Consequently, EASA issued AD 2011–0199 

to require software standard upgrade of the 

three FCPCs by either modification or 

replacement, as follows: 

—software standard P11A/M20A on FCPC 

2K2 hardware for A330–200/–300 

aeroplanes [with electrical rudder], 

through Airbus Service Bulletin (SB) 

A330–27–3176, 

—software standard P12A/M21A on FCPC 

2K1 hardware and M21A on FCPC 2K0 

hardware for A330–200/–300 aeroplanes 

[with mechanical rudder], through Airbus 

SB A330–27–3177, 

—software standard L22A on FCPC 2K1 

hardware and L22A on FCPC 2K0 

hardware for A340–200/–300 aeroplanes 

[with mechanical rudder], through Airbus 

SB A340–27–4174, and 

—software standard L21A on FCPC 2K2 

hardware for A340–300 aeroplanes [with 

electrical rudder], through Airbus SB 

A340–27–4162. 

* * * * * 

You may obtain further information 

by examining the MCAI in the AD 

docket. 

Relevant Service Information 

Airbus has issued the following 

service bulletins: 

• Mandatory Service Bulletin A330–27– 

3176, Revision 02, dated April 24, 

2012 

• Mandatory Service Bulletin A330–27– 

3177, dated December 21, 2011 

• Mandatory Service Bulletin A340–27– 

4162, Revision 01, dated September 

17, 2012 

• Mandatory Service Bulletin A340–27– 

4174, dated November 21, 2011 

The actions described in this service 

information are intended to correct the 

unsafe condition identified in the 

MCAI. 

FAA’s Determination and Requirements 

of This Proposed AD 

This product has been approved by 

the aviation authority of another 

country, and is approved for operation 

in the United States. Pursuant to our 

bilateral agreement with the State of 

Design Authority, we have been notified 

of the unsafe condition described in the 

MCAI and service information 

referenced above. We are proposing this 

AD because we evaluated all pertinent 

information and determined an unsafe 

condition exists and is likely to exist or 

develop on other products of the same 

type design. 

Costs of Compliance 

Based on the service information, we 

estimate that this proposed AD would 

affect about 59 products of U.S. registry. 

The actions that are required by AD 

2009–04–07, Amendment 39–15813 (74 

FR 7549, February 18, 2009), and 

retained in this proposed AD take about 

1 work-hour per product, at an average 

labor rate of $85 per work hour. 

Required parts cost about $0 per 

product. Based on these figures, the 

estimated cost of the actions currently 

required by AD 2009–04–07 is $85 per 

product. 

The actions that are required by AD 

2011–02–09, Amendment 39–16583 (76 

FR 4219, January 25, 2011), and retained 

in this proposed AD take about 1 workhour per product, at an average labor 

rate of $85 per work hour. Required 

parts cost about $0 per product. Based 

on these figures, the estimated cost of 

the actions currently required by AD 

2011–02–09 is $85 per product. 

We estimate that it would take about 

5 work-hours per product to comply 

with the new basic requirements of this 

proposed AD. The average labor rate is 

$85 per work-hour. Required parts 

would cost about $0 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 

the proposed AD on U.S. operators to be 

$25,075, or $425 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 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. 

We prepared a regulatory evaluation 

of the estimated costs to comply with 

this proposed AD and placed it in the 

AD docket. 

mstockstill on DSK4VPTVN1PROD with PROPOSALS

22434 Federal Register / Vol. 78, No. 73 / Tuesday, April 16, 2013 / Proposed Rules 

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 

removing airworthiness directive (AD) 

2009–04–07, Amendment 39–15813 (74 

FR 7549, February 18, 2009), and AD 

2011–02–09, Amendment 39–16583 (76 

FR 4219, January 25, 2011), and adding 

the following new AD: 

Airbus: Docket No. FAA–2013–0329; 

Directorate Identifier 2012–NM–032–AD. 

(a) Comments Due Date 

We must receive comments by May 31, 

2013. 

(b) Affected ADs 

This AD supersedes AD 2009–04–07, 

Amendment 39–15813 (74 FR 7549, February 

18, 2009; and AD 2011–02–09, Amendment 

39–16583 (76 FR 4219, January 25, 2011). 

(c) Applicability 

This AD applies to the Airbus airplanes, 

certificated in any category, as identified in 

paragraphs (c)(1) and (c)(2) of this AD. 

(1) Model A330–223F, –243F, –201, –202, 

–203, –223, –243, –301, –302, –303, –321, 

–322, –323, –341, –342, and –343 airplanes; 

except those on which Airbus modification 

201654 has been embodied in production, or 

Airbus Service Bulletin A330–27–3156 has 

been incorporated in service. 

(2) All Model A340–211, –212, –213, –311, 

–312, and –313 airplanes. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 27, Flight controls. 

(e) Reason 

This AD was prompted by the possibility 

that, due to significant differences among all 

airspeed sources, the flight controls will 

revert to alternate law, the autopilot (AP) and 

the auto-thrust (A/THR) automatically 

disconnect, and the flight director (FD) bars 

are automatically removed. Then, if two 

airspeed sources become similar while still 

erroneous, the flight guidance computers will 

display the FD bars again, and enable the reengagement of AP and A/THR. In some cases, 

however, the AP orders may be 

inappropriate, such as possible abrupt pitch 

command. We are issuing this AD to prevent 

autopilot engagement under unreliable 

airspeed conditions, which could result in 

reduced controllability 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 Airplane Flight Manual (AFM) 

Revision: Certain NAV Faults or ATT Flag 

on PFD 

This paragraph restates the actions 

required by paragraph (f) of AD 2009–04–07, 

Amendment 39–15813 (74 FR 7549, February 

18, 2009). For all airplanes except Model 

A330–223F and –243F airplanes: Within 14 

days after March 5, 2009 (the effective date 

of AD 2009–04–07), revise the applicable 

section of the A330 or A340 (Airbus) Flight 

Manual (FM) by inserting a copy of A330 

(Airbus) Temporary Revision (TR) 4.02.00/ 

46, or A340 (Airbus) TR 4.02.00/54, both 

Issue 3, both dated January 13, 2009, as 

applicable. Thereafter, operate the airplane 

according to the limitations and procedures 

in the TRs. When information identical to 

that in the TR has been included in the 

general revisions of the FM, the general 

revisions may be inserted in the FM, and the 

TR may be removed. 

(h) Retained AFM Revision: Alternate Law 

Associated With AP and A/THR 

Disconnection 

This paragraph restates the actions 

required by paragraph (g) of AD 2011–02–09, 

Amendment 39–16583 (76 FR 4219, January 

25, 2011). Within 15 days after February 9, 

2011 (the effective date of AD 2011–02–09), 

do the actions in paragraph (h)(1) or (h)(2) of 

this AD. 

(1) Revise the Limitations and Abnormal 

Sections of the Airbus A330/A340 AFM to 

include the following statement and operate 

the airplane according to these limitations 

and procedures. This may be done by 

inserting a copy of this AD in the AFM. 

When a statement identical to that in 

paragraph (h)(1) of this AD has been included 

in the general revisions of the Limitations 

and Abnormal Sections of the AFM, the 

general revisions may be inserted into the 

AFM, and the copy of this AD may be 

removed from the AFM. 

PROCEDURE: 

When autopilot and auto-thrust are 

automatically disconnected and flight 

controls have reverted to alternate law: 

—Do not engage the AP and the A/THR, even 

if FD bars have reappeared 

—Do not follow the FD orders 

—ALL SPEED INDICATIONSX–CHECK 

• If unreliable speed indication is 

suspected: 

—UNRELIABLE SPEED INDIC/ADR CHECK 

PROC APPLY 

• If at least two ADRs provide reliable 

speed indication for at least 30 seconds, and 

the aircraft is stablised on the intended path: 

AP/FD and A/THR As required 

(2) Revise the Limitations and Abnormal 

Sections of the Airbus A330/A340 AFM to 

include the information in Airbus A330/ 

A340 Temporary Revision (TR) TR149 (for 

Model A330 airplanes) or TR150 (for Model 

A340–200 and –300 series airplanes), both 

Issue 1.0, both dated December 20, 2010. 

These TRs introduce procedures for 

operation of the auto pilot and auto-thrust 

disconnect. Operate the airplane according to 

the limitations and procedures in the TRs. 

This may be done by inserting copies of 

Airbus A330/A340 TR TR149 or TR150, both 

Issue 1.0, both dated December 20, 2010; as 

applicable; into the Airbus A330/A340 AFM. 

When these TRs have been included in 

general revisions of the AFM, the general 

revisions may be inserted in the AFM, and 

the TRs may be removed. 

(i) New Software Standard Upgrade 

Within 10 months after the effective date 

of this AD, upgrade (by modification or 

replacement, as applicable) the three flight 

control primary computers (FCPCs), as 

specified in paragraphs (i)(1), (i)(2), (i)(3), 

and (i)(4) of this AD, as applicable. 

Accomplishment of the applicable 

requirements of this paragraph terminates the 

requirements of paragraphs (g) and (h) of this 

AD. 

(1) For Model A330 series airplanes: 

Upgrade to software standard P11A/M20A on 

FCPC 2K2 hardware, in accordance with the 

Accomplishment Instructions of Airbus 

Mandatory Service Bulletin A330–27–3176, 

Revision 02, dated April 24, 2012. 

(2) For Model A330 series airplanes: 

Upgrade to software standard P12A/M21A on 

FCPC 2K1 hardware, and software standard 

M21A on FCPC 2K0 hardware, in accordance 

with the Accomplishment Instructions of 

Airbus Mandatory Service Bulletin A330–27– 

3177, dated December 21, 2011. 

(3) For Model A340 series airplanes: 

Upgrade to software standard L22A on FCPC 

2K1 hardware, and software standard L22A 

on FCPC 2K0 hardware, in accordance with 

the Accomplishment Instructions of Airbus 

Mandatory Service Bulletin A340–27–4174, 

dated November 21, 2011. 

(4) For Model A340 series airplanes: 

Upgrade to software standard L21A on FCPC 

2K2 hardware, in accordance with the 

Accomplishment Instructions of Airbus 

Mandatory Service Bulletin A340–27–4162, 

Revision 01, dated September 17, 2012. 

(j) Credit for Previous Actions 

(1) This paragraph provides credit for the 

actions specified in paragraph (i)(1) of this 

AD, if those actions were performed before 

the effective date of this AD using Airbus 

Mandatory Service Bulletin A330–27–3176, 

dated July 26, 2011; or Airbus Mandatory 

Service Bulletin A330–27–3176, Revision 01, 

dated March 27, 2012; which are not 

incorporated by reference. 

(2) This paragraph provides credit for the 

actions specified in paragraph (i)(4) of this 

AD, if those actions were performed before 

the effective date of this AD using Airbus 

Mandatory Service Bulletin A340–27–4162, 

dated January 10, 2012, which is not 

incorporated by reference. 

(k) Other FAA AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, International 

mstockstill on DSK4VPTVN1PROD with PROPOSALS

Federal Register / Vol. 78, No. 73 / Tuesday, April 16, 2013 / Proposed Rules 22435 

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: 

Vladimir Ulyanov, Aerospace Engineer, 

International Branch, ANM–116, Transport 

Airplane Directorate, FAA, 1601 Lind 

Avenue SW., Renton, Washington 98057– 

3356; telephone 425–227–1138; 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 Mandatory Continuing 

Airworthiness Information (MCAI) EASA 

Airworthiness Directive 2011–0199R1, dated 

February 17, 2012, and the service 

information identified in paragraphs (i)(1)(i) 

through (i)(1)(viii) of this AD. 

(i) Airbus Mandatory Service Bulletin 

A330–27–3176, Revision 02, dated April 24, 

2012. 

(ii) Airbus Mandatory Service Bulletin 

A330–27–3177, dated December 21, 2011. 

(iii) Airbus Mandatory Service Bulletin 

A340–27–4162, Revision 01, dated 

September 17, 2012. 

(iv) Airbus Mandatory Service Bulletin 

A340–27–4174, dated November 21, 2011. 

(v) Airbus A330 Temporary Revision 

4.02.00/46, Issue 3, dated January 13, 2009, 

to the Airbus A330 Airplane Flight Manual. 

(vi) Airbus A340 Temporary Revision 

4.02.00/54, Issue 3, dated January 13, 2009, 

to the Airbus A340 Airplane Flight Manual. 

(vii) Airbus A330/A340 Temporary 

Revision TR149, Issue 1.0, dated December 

20, 2010, to the Airbus A330/A340 Airplane 

Flight Manual. 

(viii) Airbus A330/A340 Temporary 

Revision TR150, Issue 1.0, dated December 

20, 2010, to the Airbus A330/A340 Airplane 

Flight Manual. 

(2) For service information identified in 

this AD, contact Airbus SAS—Airworthiness 

Office—EAL, 1 Rond Point Maurice Bellonte, 

31707 Blagnac Cedex, France; telephone +33 

5 61 93 36 96; fax +33 5 61 93 45 80; email 

airworthiness.A330-A340@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 April 4, 

2013. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2013–08909 Filed 4–15–13; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2013–0328; Directorate 

Identifier 2012–NM–184–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 supersede an 

existing airworthiness directive (AD) 

that applies to certain The Boeing 

Company Model 747–400 and –400D 

series airplanes. The existing AD 

currently requires repetitive inspections 

to detect cracks in the floor panel 

attachment fastener holes of the Section 

41 upper deck floor beam upper chords, 

and corrective actions if necessary; and 

repetitive post-repair and postmodification inspections, and corrective 

actions if necessary. Since we issued 

that AD, an evaluation by the design 

approval holder (DAH) indicated that 

certain upper chords of the upper deck 

floor beam are subject to widespread 

fatigue damage (WFD). A replacement 

was developed to support the airplane’s 

limit of validity (LOV) of the 

engineering data that support the 

established structural maintenance 

program. This proposed AD would add 

repetitive inspections of Section 44 

upper deck floor beam upper chords, 

and corrective actions if necessary; 

repetitive post-repair and postmodification inspections, and corrective 

actions if necessary; and replacing the 

upper deck floor beam upper chords. 

We are proposing this AD to detect and 

correct fatigue cracking in certain upper 

chords of the upper deck floor beam, 

which could become large and cause the 

floor beams to become severed and 

result in rapid decompression or 

reduced controllability of the airplane. 

DATES: We must receive comments on 

this proposed AD by May 31, 2013. 

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 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, 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 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: 

Roger Caldwell, Aerospace Engineer, 

Technical Operations Center, ANM– 

100D, FAA, Denver Aircraft 

Certification Office (ACO), 26805 East 

68th Avenue, Room 214, Denver, CO 

80249; phone: 303–342–1086; fax: 303– 

342–1088; email: 

roger.caldwell@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

We invite you to send any written 

relevant data, views, or arguments about 

this proposed AD. Send your comments 

to an address listed under the 

ADDRESSES section. Include ‘‘Docket No. 

FAA–2013–0328; Directorate Identifier 

2012–NM–184–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. 

mstockstill on DSK4VPTVN1PROD with PROPOSALS