56172 Federal Register / Vol. 77, No. 177 / Wednesday, September 12, 2012 / Proposed Rules 

(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. 

(k) Related Information 

(1) For more information about this AD, 

contact Nancy Marsh, Aerospace Engineer, 

Airframe Branch, ANM–120S, FAA, Seattle 

Aircraft Certification Office, 1601 Lind 

Avenue SW., Renton, WA 98057–3356; 

phone 425–917–6440; fax 425–917–6590; 

email nancy.marsh@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. 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 

31, 2012. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2012–22392 Filed 9–11–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2012–0934; Directorate 

Identifier 2011–NM–260–AD] 

RIN 2120–AA64 

Airworthiness Directives; Airbus 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to adopt a new 

airworthiness directive (AD) for all 

Airbus Model A330–200 and –300 series 

airplanes. This proposed AD was 

prompted by a report of a prematurely 

fractured main landing gear (MLG) bogie 

beam. This proposed AD would require 

replacing certain MLG bogie beams 

before reaching new reduced life limits. 

We are proposing this AD to prevent 

fracture of the MLG bogie beam, which, 

under high speed, could ultimately 

result in the airplane departing the 

runway, the bogie beam detaching from 

the airplane, or collapse of the MLG; 

and consequent structural damage to the 

airplane and injury to the occupants. 

DATES: We must receive comments on 

this proposed AD by October 29, 2012. 

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 MessierDowty: Messier Services Americas, 

Customer Support Center, 45360 Severn 

Way, Sterling, VA 20166–8910; 

telephone 703–450–8233; fax 703–404– 

1621; Internet https://techpubs.services/ 

messier-dowty.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, WA 

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–2012–0934; Directorate Identifier 

2011–NM–260–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 

The European Aviation Safety Agency 

(EASA), which is the Technical Agent 

for the Member States of the European 

Community, has issued EASA 

Airworthiness Directive 2011–0212, 

dated October 31, 2011 (referred to after 

this as ‘‘the MCAI’’), to correct an unsafe 

condition for the specified products. 

The MCAI states: 

During ground load test cycles on an 

A340–600 aeroplane, the MLG bogie beam 

has prematurely fractured. 

The results of the investigation identified 

that this premature fracture was due to high 

tensile standing stress, resulting from dry fit 

axle assembly method. Improvement has 

been introduced subsequently with a grease 

fit axle assembly method. 

Fatigue and damage tolerance analyses 

were performed, whose results demonstrated 

that the current life limit of certain MLG 

bogie beams with dry fit axles installed on 

A330 aeroplanes only must be reduced 

compared to the life limit stated in the A330 

Airworthiness Limitations Section (ALS) Part 

1—Safe Life Airworthiness Limitation Items 

revision 05 approved by EASA on 29 July 

2010. 

Failure to comply with the reduced life 

limit of the MLG bogie beam with dry fit axle 

might jeopardize the MLG structural 

integrity. 

For the reasons described above, this 

[EASA] AD requires the replacement of the 

affected MLG bogie beams before reaching 

the new reduced life limit. 

The unsafe condition is a possible 

fracture of the MLG bogie beam, which, 

under high speed, could ultimately 

result in the airplane departing the 

runway, the bogie beam detaching from 

the airplane, or collapse of the MLG; 

and consequent structural damage to the 

airplane and injury to the occupants. 

You may obtain further information by 

examining the MCAI in the AD docket. 

Relevant Service Information 

Messier-Dowty has issued Service 

Letter A33–34 A20, Revision 5, 


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Federal Register / Vol. 77, No. 177 / Wednesday, September 12, 2012 / Proposed Rules 56173 

including Appendices A through F, 

dated July 31, 2009. 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 53 products of U.S. registry. 

We also estimate that it would take 

about 16 work-hours per MLG bogie 

beam (2 MLG bogie beams per airplane) 

to comply with the basic requirements 

of this proposed AD. The average labor 

rate is $85 per work-hour. Required 

parts would cost about $255,000 per 

MLG bogie beam. 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 up 

to $27,174,160, or $256,360 per MLG 

bogie beam. 

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. 

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 AD: 

Airbus: Docket No. FAA–2012–0934; 

Directorate Identifier 2011–NM–260–AD. 

(a) Comments Due Date 

We must receive comments by October 29, 

2012. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to all Airbus Model A330– 

201, –202, –203, –223, –243, –301, –302, 

–303, –321, –322, –323, –341, –342, and –343 

airplanes; certificated in any category; all 

manufacturer serial numbers (S/Ns). 

(d) Subject 

Air Transport Association (ATA) of 

America Code 32, Landing gear. 

(e) Reason 

This AD was prompted by a report of a 

prematurely fractured main landing gear 

(MLG) bogie beam. We are issuing this AD to 

prevent fracture of the MLG bogie beam, 

which, under high speed, could ultimately 

result in the airplane departing the runway, 

the bogie beam detaching from the airplane, 

or collapse of the MLG; and consequent 

structural damage to the airplane and injury 

to the occupants. 

(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) Bogie Beam Replacement 

At the later of the times specified in 

paragraph (g)(1) or (g)(2) of this AD, replace 

all MLG bogie beams having part number (P/ 

N) 201485300, 201485301, 201272302, 

201272304, 201272306, or 201272307, except 

those that have S/Ns S2A, S2B, or S2C, as 

identified in Messier-Dowty Service Letter 

A33–34 A20, Revision 5, including 

Appendices A through F, dated July 31, 2009, 

with a new or serviceable part, in accordance 

with a method approved by the Manager, 

International Branch, ANM–116, Transport 

Airplane Directorate, FAA, or European 

Aviation Safety Agency (EASA) (or its 

delegated agent). 

(1) Before the accumulation of the flight 

hours or landings, whichever occurs first, 

specified in table 1 of this AD, as applicable 

to airplane type, model, and weight variant 

(WV). 

TABLE 1 TO PARAGRAPH (g)(1) OF THIS AD—MLG Bogie Beam Life Limit 

Affected airplanes— Life limit from first installation of MLG bogie 

beam on an airplane— 

Model A330–201, –202, –203, –223, –243, weight variant (WV)02x, WV05x (except WV058), 

and WV06x series.

50,000 landings or 72,300 total flight hours’ 

Model A330–201, –202, –203, –223, –243 WV058 ........................................................................ 50,000 landings or 57,900 total flight hours. 


tkelley on DSK3SPTVN1PROD with PROPOSALS
56174 Federal Register / Vol. 77, No. 177 / Wednesday, September 12, 2012 / Proposed Rules 

TABLE 1 TO PARAGRAPH (g)(1) OF THIS AD—MLG Bogie Beam Life Limit—Continued 

Affected airplanes— Life limit from first installation of MLG bogie 

beam on an airplane— 

Model A330–301, –302, –303, –321, –322, –323, –341, –342, –343 WV00x, WV01x, WV02x, 

WV05x series.

46,000 landings or 75,000 total flight hours. 

(2) Within 6 months after the effective date 

of this AD. 

(h) Parts Installation Limitations 

As of the effective date of this AD, a MLG 

bogie beam having any part number 

identified in paragraph (g) of this AD, may 

be installed on an airplane, provided its life 

has not exceeded the life limit defined in 

table 1 to paragraph (g)(1) of this AD, and is 

replaced with a new or serviceable part 

before reaching the life limit defined in table 

1 to paragraph (g)(1) of this AD. 

(i) 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: 

Vladimir Ulyanov, Aerospace Engineer, 

International Branch, ANM–116, Transport 

Airplane Directorate, FAA, 1601 Lind 

Avenue SW., Renton, WA 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. 

(j) Related Information 

(1) Refer to MCAI EASA Airworthiness 

Directive 2011–0212, dated October 31, 2011; 

and Messier-Dowty Service Letter A33–34 

A20, Revision 5, including Appendices A 

through F, dated July 31, 2009; for related 

information. 

(2) For service information identified in 

this AD, contact Messier-Dowty: Messier 

Services Americas, Customer Support Center, 

45360 Severn Way, Sterling, VA 20166–8910; 

telephone 703–450–8233; fax 703–404–1621; 

Internet https://techpubs.services/messierdowty.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 

24, 2012. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2012–22425 Filed 9–11–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

14 CFR Part 71 

[Docket No. FAA–2012–0483; Airspace 

Docket No. 12–ANM–13] 

Proposed Establishment of Class D 

and Class E Airspace; Camp 

Guernsey, WY 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: This action proposes to 

establish Class D airspace and Class E 

airspace at Camp Guernsey Airport, 

Camp Guernsey, WY. The establishment 

of an air traffic control tower has made 

this action necessary for the safety and 

management of Instrument Flight Rules 

(IFR) aircraft within this airspace. 

DATES: Comments must be received on 

or before October 29, 2012. 

ADDRESSES: Send comments on this 

proposal to the U.S. Department of 

Transportation, Docket Operations, M– 

30, West Building Ground Floor, Room 

W12–140, 1200 New Jersey Avenue SE., 

Washington, DC 20590; telephone (202) 

366–9826. You must identify FAA 

Docket No. FAA–2012–0483; Airspace 

Docket No. 12–ANM–13, at the 

beginning of your comments. You may 

also submit comments through the 

Internet at http://www.regulations.gov. 

FOR FURTHER INFORMATION CONTACT: 

Eldon Taylor, Federal Aviation 

Administration, Operations Support 

Group, Western Service Center, 1601 

Lind Avenue SW., Renton, WA 98057; 

telephone (425) 203–4537. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

Interested parties are invited to 

participate in this proposed rulemaking 

by submitting such written data, views, 

or arguments, as they may desire. 

Comments that provide the factual basis 

supporting the views and suggestions 

presented are particularly helpful in 

developing reasoned regulatory 

decisions on the proposal. Comments 

are specifically invited on the overall 

regulatory, aeronautical, economic, 

environmental, and energy-related 

aspects of the proposal. 

Communications should identify both 

docket numbers (FAA Docket No. FAA 

2012–0483 and Airspace Docket No. 12– 

ANM–13) and be submitted in triplicate 

to the Docket Management System (see 

ADDRESSES section for address and 

phone number). You may also submit 

comments through the Internet at http:// 

www.regulations.gov. 

Commenters wishing the FAA to 

acknowledge receipt of their comments 

on this action must submit with those 

comments a self-addressed stamped 

postcard on which the following 

statement is made: ‘‘Comments to FAA 

Docket No. FAA–2012–0483 and 

Airspace Docket No. 12–ANM–13’’. The 

postcard will be date/time stamped and 

returned to the commenter. 

All communications received on or 

before the specified closing date for 

comments will be considered before 

taking action on the proposed rule. The 

proposal contained in this action may 

be changed in light of comments 

received. All comments submitted will 

be available for examination in the 

public docket both before and after the 

closing date for comments. A report 

summarizing each substantive public 

contact with FAA personnel concerned 

with this rulemaking will be filed in the 

docket. 

Availability of NPRMs 

An electronic copy of this document 

may be downloaded through the 

Internet at http://www.regulations.gov. 

Recently published rulemaking 

documents can also be accessed through 

the FAA’s Web page at http:// 

www.faa.gov/airports_airtraffic/ 

air_traffic/publications/ 

airspace_amendments/. 

You may review the public docket 

containing the proposal, any comments 

received, and any final disposition in 

person in the Dockets Office (see the 

ADDRESSES section for the address and 


tkelley on DSK3SPTVN1PROD with PROPOSALS