This section of the FEDERAL REGISTER

contains notices to the public of the proposed

issuance of rules and regulations. The

purpose of these notices is to give interested

persons an opportunity to participate in the

rule making prior to the adoption of the final

rules.

Proposed Rules Federal Register

76926 

Vol. 75, No. 237 

Friday, December 10, 2010 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2010–1197; Directorate 

Identifier 2010–NM–044–AD] 

RIN 2120–AA64 

Airworthiness Directives; Airbus Model 

A300 B4–600, B4–600R, and F4–600R 

Series Airplanes, and Model C4–605R 

Variant F Airplanes (Collectively Called 

A300–600 Series Airplanes); and Model 

A310 Series Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to adopt a new 

airworthiness directive (AD) for the 

products listed above. This proposed 

AD results from mandatory continuing 

airworthiness information (MCAI) 

originated by an aviation authority of 

another country to identify and correct 

an unsafe condition on an aviation 

product. The MCAI describes the unsafe 

condition as: 

An operator of an A300–600 aeroplane 

reported finding a cracked pylon fuel drain 

pipe on engine #1. * * * 

* * * The pipe drains the double wall of 

the wing-to-pylon junction in the event of 

fuel leakage. 

After investigation, it was concluded that 

the damage of the pylon fuel drain pipe had 

been caused by chafing of the pipe against 

over-length screws that had been installed in 

accordance with the Illustrated Parts 

Catalogue (IPC) during a maintenance phase 

of the Lower Aft Pylon Fairing (LAPF). 

This condition, if not detected and 

corrected, could, in combination with fuel 

leakage in the pylon, lead to an accumulation 

of fuel in the lowest point of the LAPF. As 

high temperatures are present within the 

LAPF, and without ventilation, this could 

result in fuel (vapour) ignition and 

consequent fire. 

* * * * * 

The proposed AD would require 

actions that are intended to address the 

unsafe condition described in the MCAI. 

DATES: We must receive comments on 

this proposed AD by January 24, 2011. 

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 

W12–40, 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— 

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; e-mail: 

account.airworth-eas@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, 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 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: Dan 

Rodina, Aerospace Engineer, 

International Branch, ANM–116, 

Transport Airplane Directorate, FAA, 

1601 Lind Avenue, SW., Renton, 

Washington 98057–3356; telephone 

(425) 227–2125; 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–2010–1197; Directorate Identifier 

2010–NM–044–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 2010–0085, 

dated May 3, 2010 (referred to after this 

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

condition for the specified products. 

The MCAI states: 

An operator of an A300–600 aeroplane 

reported finding a cracked pylon fuel drain 

pipe on engine #1.The pipe, Part Number (P/ 

N) A71715020, had separated and the end 

was found 5.5 inches from the pylon aft 

bulkhead. A similar case was also reported 

on an A300F4–608ST aeroplane. 

The affected pylon fuel drain pipe runs 

from the top of the pylon primary structure 

to the aft part of the pylon rear secondary 

structure and is partly attached under the 

pylon lower spar. The pipe drains the double 

wall of the wing-to-pylon junction in the 

event of fuel leakage. 

After investigation, it was concluded that 

the damage of the pylon fuel drain pipe had 

been caused by chafing of the pipe against 

over-length screws that had been installed in 

accordance with the Illustrated Parts 

Catalogue (IPC) during a maintenance phase 

of the Lower Aft Pylon Fairing (LAPF). 

This condition, if not detected and 

corrected, could, in combination with fuel 

leakage in the pylon, lead to an accumulation 

of fuel in the lowest point of the LAPF. As 

high temperatures are present within the 

LAPF, and without ventilation, this could 

result in fuel (vapour) ignition and 

consequent fire. 

To address and correct this unsafe 

condition, EASA * * * required an 

inspection [for missing pipes, or distortions 


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or holes] of the pylon fuel drain pipe and the 

attachment screws and, depending on 

findings, the necessary corrective actions. In 

case over-length screws are found to be 

installed, depending on location and 

aeroplane configuration, these must be 

replaced. 

* * * * * 

Required actions also include visually 

inspecting to determine the length and 

part number of the drain pipe 

attachment screws on the LAPF on the 

left- and right-hand pylons. Corrective 

actions include replacing or repairing 

the pipe, or replacing screws with 

incorrect part numbers with new 

screws. You may obtain further 

information by examining the MCAI in 

the AD docket. 

Relevant Service Information 

Airbus has issued Mandatory Service 

Bulletin A300–54A6039, Revision 01, 

including Appendices 01, 02, and 03, 

dated March 11, 2010; and Mandatory 

Service Bulletin A310–54A2040, 

Revision 02, including Appendices 01, 

02, and 03, dated June 10, 2010. 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. 

Differences Between This AD and the 

MCAI or Service Information 

We have reviewed the MCAI and 

related service information and, in 

general, agree with their substance. But 

we might have found it necessary to use 

different words from those in the MCAI 

to ensure the AD is clear for U.S. 

operators and is enforceable. In making 

these changes, we do not intend to differ 

substantively from the information 

provided in the MCAI and related 

service information. 

We might also have proposed 

different actions in this AD from those 

in the MCAI in order to follow FAA 

policies. Any such differences are 

highlighted in a NOTE within the 

proposed AD. 

Costs of Compliance 

Based on the service information, we 

estimate that this proposed AD would 

affect about 168 products of U.S. 

registry. We also estimate that it would 

take about 4 work-hours per product to 

comply with the basic requirements of 

this proposed AD. The average labor 

rate is $85 per work-hour. Based on 

these figures, we estimate the cost of the 

proposed AD on U.S. operators to be 

$57,120, or $340 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); and 

3. 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–2010–1197; 

Directorate Identifier 2010–NM–044–AD. 

Comments Due Date 

(a) We must receive comments by January 

24, 2011. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to Airbus Model A300 

B4–601, B4–603, B4–620, and B4–622 

airplanes; Model A300 B4–605R and B4– 

622R airplanes; Model A300 F4–605R and 

F4–622R airplanes; Model A300 C4–605R 

Variant F airplanes; and Model A310–203, 

–204, –221, –222, –304, –322, –324, and –325 

airplanes; certificated in any category; all 

serial numbers. 

Subject 

(d) Air Transport Association (ATA) of 

America Code 54: Nacelles/pylons. 

Reason 

(e) The mandatory continuing 

airworthiness information (MCAI) states: 

An operator of an A300–600 aeroplane 

reported finding a cracked pylon fuel drain 

pipe on engine #1. * * * 

* * * The pipe drains the double wall of 

the wing-to-pylon junction in the event of 

fuel leakage. 

After investigation, it was concluded that 

the damage of the pylon fuel drain pipe had 

been caused by chafing of the pipe against 

over-length screws that had been installed in 

accordance with the Illustrated Parts 

Catalogue (IPC) during a maintenance phase 

of the Lower Aft Pylon Fairing (LAPF). 

This condition, if not detected and 

corrected, could, in combination with fuel 

leakage in the pylon, lead to an accumulation 

of fuel in the lowest point of the LAPF. As 

high temperatures are present within the 

LAPF, and without ventilation, this could 

result in fuel (vapour) ignition and 

consequent fire. 

* * * * * 

Compliance 

(f) You are responsible for having the 

actions required by this AD performed within 


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76928 Federal Register / Vol. 75, No. 237 / Friday, December 10, 2010 / Proposed Rules 

the compliance times specified, unless the 

actions have already been done. 

Inspection and Corrective Actions 

(g) Within 30 days after the effective date 

of this AD, do a general visual inspection for 

missing pipes, or distortions or holes, of the 

fuel drain pipes of the LAPF, and if no 

missing pipes, distortions, and holes are 

found, do a general visual inspection to 

determine the length and part number of the 

drain pipe attachment screws on the LAPF 

on the left-hand and right-hand pylons, in 

accordance with the Accomplishment 

Instructions of Airbus Mandatory Service 

Bulletin A300–54A6039, Revision 01, dated 

March 11, 2010 (for Model A300–600 series 

airplanes); or A310–54A2040, Revision 02, 

dated June 10, 2010 (for Model A310 series 

airplanes). 

(1) If missing pipes, distortions, or holes of 

the fuel drain pipes are detected during any 

inspection required by paragraph (g) of this 

AD, before further flight, replace the drain 

pipe, in accordance with the 

Accomplishment Instructions of Airbus 

Mandatory Service Bulletin A300–54A6039, 

Revision 01, dated March 11, 2010 (for Model 

A300–600 series airplanes); or A310– 

54A2040, Revision 02, dated June 10, 2010 

(for Model A310 series airplanes); or contact 

Airbus for repair instructions and do the 

repair. 

(2) If screw length is outside the 

measurement specified in the 

Accomplishment Instructions of Airbus 

Mandatory Service Bulletin A300–54A6039, 

Revision 01, dated March 11, 2010 (for Model 

A300–600 series airplanes); or A310– 

54A2040, Revision 02, dated June 10, 2010 

(for Model A310 series airplanes); or screws 

having incorrect part numbers are found 

during any inspection required by paragraph 

(g) of this AD, before further flight, replace 

the screws with screws having part number 

(P/N) NAS1102E3–10, NAS1102E3–12, or 

NAS560HK3–2, as applicable to location and 

airplane (engine) configuration, in 

accordance with the Accomplishment 

Instructions of Airbus Mandatory Service 

Bulletin A300–54A6039, Revision 01, dated 

March 11, 2010 (for Model A300–600 series 

airplanes); or A310–54A2040, Revision 02, 

dated June 10, 2010 (for Model A310 series 

airplanes). 

(h) As of the effective date of this AD, do 

not install screws on the LAPF, other than 

screws having P/N NAS1102E3–10, 

NAS1102E3–12, or NAS560HK3–2, as 

applicable to location and airplane (engine) 

configuration, in accordance with the 

Accomplishment Instructions of Airbus 

Mandatory Service Bulletin A300–54A6039, 

Revision 01, dated March 11, 2010 (for Model 

A300–600 series airplanes); or A310– 

54A2040, Revision 02, dated June 10, 2010 

(for Model A310 series airplanes). 

Credit for Actions Accomplished in 

Accordance with Previous Service 

Information 

(i) Actions accomplished before the 

effective date of this AD in accordance with 

the service bulletins identified in Table 1 of 

this AD are considered acceptable for 

compliance with the corresponding actions 

specified in this AD. 

TABLE 1—CREDIT SERVICE BULLETINS

For Model— Airbus mandatory 

service bulletin— Revision— Dated— 

A300–600 series airplanes ............................................................ A300–54A6039 Original ...................................... January 19, 2010. 

A310 series airplanes .................................................................... A310–54A2040 Original ...................................... January 19, 2010. 

A310 series airplanes .................................................................... A310–54A2040 01 ............................................... March 11, 2010. 

No Reporting 

(j) Although Airbus Mandatory Service 

Bulletins A300–54A6039, Revision 01, dated 

March 11, 2010; and A310–54A2040, 

Revision 02, dated June 10, 2010; specify to 

submit certain information to the 

manufacturer, this AD does not include that 

requirement. 

FAA AD Differences 

Note 1: This AD differs from the MCAI 

and/or service information as follows: 

Although the MCAI or service information 

tells you to submit information to the 

manufacturer, paragraph (j) of this AD does 

not require that information. 

Other FAA AD Provisions 

(k) 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. 

Send information to ATTN: Dan Rodina, 

Aerospace Engineer, International Branch, 

ANM–116, Transport Airplane Directorate, 

FAA, 1601 Lind Avenue SW., Renton, 

Washington 98057–3356; telephone (425) 

227–2125; fax (425) 227–1149. Before using 

any approved AMOC on any airplane to 

which the AMOC applies, notify your 

principal maintenance inspector (PMI) or 

principal avionics inspector (PAI), as 

appropriate, or lacking a principal inspector, 

your local Flight Standards 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. 

Related Information 

(l) Refer to MCAI European Aviation Safety 

Agency Airworthiness Directive 2010–0085, 

dated May 3, 2010; Airbus Mandatory 

Service Bulletin A300–54A6039, Revision 01, 

dated March 11, 2010; and Airbus Mandatory 

Service Bulletin A310–54A2040, Revision 02, 

dated June 10, 2010; for related information. 

Issued in Renton, Washington, on 

December 2, 2010. 

Jeffrey E. Duven, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2010–31040 Filed 12–9–10; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 139 

[Docket No. FAA–2010–0997; Notice No. 10– 

14] 

RIN 2120–AJ38 

Safety Management System for 

Certificated Airports; Extension of 

Comment Period 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM); extension of comment period. 

SUMMARY: This action extends the 

comment period for an NPRM that was 

published on October 7, 2010. In that 

document, the FAA proposed to require 

each certificate holder to establish a 

safety management system (SMS) for its 

entire airfield environment (including 

movement and non-movement areas) to 

improve safety at airports hosting air 

carrier operations. Several associations 

representing airports and other aviation 

industry segments have requested that 

the FAA extend the comment period 

closing date to allow time to adequately 

analyze the NPRM and prepare 

comments. 


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