61638 Federal Register / Vol. 76, No. 193 / Wednesday, October 5, 2011 / Proposed Rules 

(4) Fuel Consumption is increased by 

+2.5% on fuel used/door. 

(5) Cruise Airspeed is limited to not more 

than 0.78 Mach. 

(6) The climb ceiling obtained from the 

Flight Planning and Cruise Control Manual 

(FPCCM) must be reduced by 1,000 ft/door.’’ 

Note 4: When a statement with the 

information specified in paragraph (n)(2)(ii) 

of this AD has been included in the general 

revisions of the AFM, the general revisions 

may be inserted into the AFM, and the copy 

of this AD may be removed from the AFM. 

Revise CDL 

(o) For airplanes on which the door(s) have 

been removed in accordance with paragraph 

(j)(3) of this AD: Within 30 days after August 

15, 2006, do the revision specified in 

paragraph (n)(2)(i) or (n)(2)(ii) of this AD, as 

applicable, and remove any revision required 

by paragraph (j)(3)(i) or (j)(3)(ii) of this AD. 

No Reporting Required 

(p) Although Bombardier Alert Service 

Bulletin A670BA–32–016, Revision A, dated 

June 7, 2005, excluding Appendix A, dated 

June 2, 2005, and including Appendix B, 

dated June 2, 2005; and Revision F, dated 

May 14, 2010, excluding Appendix A, dated 

June 2, 2005, and including Appendix B, 

dated June 2, 2005; specify to submit certain 

information to the manufacturer, this AD 

does not include that requirement. 

Actions Accomplished According to 

Previous Issue of Service Bulletin 

(q) Actions accomplished before August 

15, 2006, according to Bombardier Alert 

Service Bulletin A670BA–32–016, dated June 

2, 2005, are considered acceptable for 

compliance with the corresponding actions 

of this AD. 

New Requirements of This AD 

Terminating Modification for MLG Door 

Configuration 

(r) Within 6,000 flight hours after the 

effective date of this AD, modify the MLG 

door, in accordance with the 

Accomplishment Instructions of Bombardier 

Service Bulletin 670BA–32–017, Revision C, 

dated May 14, 2010. Doing this modification 

terminates the requirements of this AD. 

Credit for Actions Accomplished in 

Accordance With Previous Service 

Information 

(s) Modifying the MLG door before the 

effective date of this AD, in accordance with 

the Accomplishment Instructions of 

Bombardier Service Bulletin 670BA–32–017, 

dated July 24, 2006; Revision A, dated 

September 26, 2006; or Revision B, dated July 

31, 2008; as applicable; is considered 

acceptable for compliance with the 

requirements of paragraph (r) of this AD. 

FAA AD Differences 

Note 5: This AD differs from the MCAI 

and/or service information as follows: No 

differences. 

Other FAA AD Provisions 

(t) The following provisions also apply to 

this AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, New York ACO, 

ANE–170, 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: Program Manager, 

Continuing Operational Safety, FAA, New 

York ACO, 1600 Stewart Avenue, Suite 410, 

Westbury, New York 11590; telephone 516– 

228–7300; fax 516–794–5531. Before using 

any approved AMOC, notify your appropriate 

principal inspector, or lacking a principal 

inspector, the manager of the local flight 

standards district office/certificate holding 

district office. The AMOC approval letter 

must specifically reference this AD. AMOCs 

approved previously in accordance with AD 

2006–14–05, Amendment 39–14676 (71 FR 

38979, July 11, 2006), are acceptable for 

compliance with 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 

(u) Refer to MCAI TCCA Airworthiness 

Directive CF–2003–23R3, dated May 21, 

2010; Bombardier Alert Service Bulletin 

A670BA–32–016, Revision F, dated May 14, 

2010, excluding Appendix A, dated June 2, 

2005, and including Appendix B, dated June 

2, 2005; and Bombardier Service Bulletin 

670BA–32–017, Revision C, dated May 14, 

2010; for related information. 

Issued in Renton, Washington, on 

September 22, 2011. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2011–25571 Filed 10–4–11; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2011–0995; Directorate 

Identifier 2010–NM–243–AD] 

RIN 2120–AA64 

Airworthiness Directives; 328 Support 

Services GmbH (Type Certificate 

Previously Held by AvCraft Aerospace 

GmbH; Fairchild Dornier GmbH; 

Dornier Luftfahrt GmbH) Model 328– 

100 and 328–300 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: 

Based on in-service experience, the System 

Safety Analyses for the Flight Controls have 

been reviewed and their conclusions have 

been accepted during the latest Candidate 

Maintenance Coordination Committee 

meeting. 

This review resulted in reduced inspection 

intervals, specifically for the flight controls 

tab-to-actuator linkage [certification 

maintenance requirements] CMR** repetitive 

inspections, which have been identified as 

mandatory actions for continued 

airworthiness. 

Failure of these components or their 

constituent parts could lead to reduced 

control of the aeroplane. 

* * * * * 

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 November 21, 

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 328 Support 

Services GmbH, Global Support Center, 

P.O. Box 1252, D–82231 Wessling, 

Federal Republic of Germany; 

telephone: +49 8153 88111 6666; fax: 

+49 8153 88111 6565; e-mail: 

gsc.op@328support.de; Internet: http:// 

www.328support.de. 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 


jlentini on DSK4TPTVN1PROD with PROPOSALS
Federal Register / Vol. 76, No. 193 / Wednesday, October 5, 2011 / Proposed Rules 61639 

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: Tom 

Rodriguez, Aerospace Engineer, 

International Branch, ANM–116, 

Transport Airplane Directorate, FAA 

1601 Lind Avenue, SW., Renton, 

Washington 98057–3356; telephone 

(425) 227–1137; 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–2011–0995; Directorate Identifier 

2010–NM–243–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 2010–0054, 

dated March 25, 2010 (referred to after 

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

condition for the specified products. 

The MCAI states: 

Based on in-service experience, the System 

Safety Analyses for the Flight Controls have 

been reviewed and their conclusions have 

been accepted during the latest Candidate 

Maintenance Coordination Committee 

meeting. 

This review resulted in reduced inspection 

intervals, specifically for the flight controls 

tab-to-actuator linkage CMR** repetitive 

inspections, which have been identified as 

mandatory actions for continued 

airworthiness. 

Failure of these components or their 

constituent parts could lead to reduced 

control of the aeroplane. 

Consistent with the EASA policy to require 

compliance with any new and reduced 

airworthiness limitations by taking AD action 

and for the reasons described above, this 

EASA AD requires the accomplishment of 

the reduced-interval repetitive inspections 

and, depending on findings, related 

corrective action(s). In addition, this AD 

requires the implementation of the affected 

reduced inspection intervals and associated 

corrective actions into the operator’s 

approved maintenance programme. 

You may obtain further information by 

examining the MCAI in the AD docket. 

Relevant Service Information 

328 Support Services GmbH has 

issued Dornier 328 Certification 

Maintenance Requirements Document 

TM–CMR–010793–ALL, Revision 13, 

dated April 30, 2007; and Dornier 

328JET Certification Maintenance 

Requirements Document TM–CMR– 

010599–ALL, Revision 2, dated May 1, 

2007. 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 63 products of U.S. registry. 

We also estimate that it would take 

about 1 work-hour 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 

$5,355, or $85 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 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, 


jlentini on DSK4TPTVN1PROD with PROPOSALS
61640 Federal Register / Vol. 76, No. 193 / Wednesday, October 5, 2011 / Proposed Rules 

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: 

328 Support Services GmbH (Type 

Certificate Previously Held by AvCraft 

Aerospace GmbH; Fairchild Dornier 

GmbH; Dornier Luftfahrt GmbH): Docket 

No. FAA–2011–0995; Directorate 

Identifier 2010–NM–243–AD. 

Comments Due Date 

(a) We must receive comments by 

November 21, 2011. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to 328 Support 

Services GmbH (Type Certificate Previously 

Held by AvCraft Aerospace GmbH; Fairchild 

Dornier GmbH; Dornier Luftfahrt GmbH) 

Model 328–100 and 328–300 airplanes; 

certificated in any category; all serial 

numbers. 

Subject 

(d) Air Transport Association (ATA) of 

America Code 27: Flight Controls. 

Reason 

(e) The mandatory continuing 

airworthiness information (MCAI) states: 

Based on in-service experience, the System 

Safety Analyses for the Flight Controls have 

been reviewed and their conclusions have 

been accepted during the latest Candidate 

Maintenance Coordination Committee 

meeting. 

This review resulted in reduced inspection 

intervals, specifically for the flight controls 

tab-to-actuator linkage [certification 

maintenance requirements] CMR** repetitive 

inspections, which have been identified as 

mandatory actions for continued 

airworthiness. 

Failure of these components or their 

constituent parts could lead to reduced 

control of the aeroplane. 

* * * * * 

Compliance 

(f) You are responsible for having the 

actions required by this AD performed within 

the compliance times specified, unless the 

actions have already been done. 

Maintenance Program Revision 

(g) Within 100 flight hours after the 

effective date of this AD: Revise the airplane 

maintenance program by incorporating the 

applicable CMR tasks identified in table 1 of 

this AD. 

TABLE 1—CMR TASKS

Model— Task No.— Task description— Identified in— 

328–100 airplanes ............... Task 27–10–00–09 ............ Visual Check of Mechanical Linkages Aileron 

Trim Tab to Actuator.

328 Support Services Dornier 328 Certification Maintenance Requirements Document TM–CMR–010793– 

ALL, Revision 13, dated April 30, 2007. 

328–100 airplanes ............... Task 27–20–00–09 ............ Visual Check of Mechanical Linkages Rudder 

Trim Tab/Spring Tab to 

Actuator.

328 Support Services Dornier 328 Certification Maintenance Requirements Document TM–CMR–010793– 

ALL, Revision 13, dated April 30, 2007. 

328–100 airplanes ............... Task 27–30–00–13 ............ Visual Check of Mechanical Linkages Elevator 

Trim Tabs to Actuator.

328 Support Services Dornier 328 Certification Maintenance Requirements Document TM–CMR–010793– 

ALL, Revision 13, dated April 30, 2007. 

328–300 airplanes ............... Task 27–10–00–13 ............ Visual Check of Linkage 

Aileron Trim Tab to Actuator.

328 Support Services Dornier 328JET Certification 

Maintenance Requirements Document TM–CMR– 

010599–ALL, Revision 2, dated May 1, 2007. 

328–300 airplanes ............... Task 27–20–00–11 ............ Visual Check of Linkage 

Rudder Trim Tab/Spring 

Tab to Actuator.

328 Support Services Dornier 328JET Certification 

Maintenance Requirements Document TM–CMR– 

010599–ALL, Revision 2, dated May 1, 2007. 

328–300 airplanes ............... Task 27–30–00–14 ............ Visual Check of Linkage 

Elevator Trim Tabs to 

Actuator.

328 Support Services Dornier 328JET Certification 

Maintenance Requirements Document TM–CMR– 

010599–ALL, Revision 2, dated May 1, 2007. 

(h) The initial compliance time for the 

CMR tasks identified in table 1 of this AD is 

within 500 flight hours after the most recent 

inspection, or within 100 flight hours after 

the effective date of this AD, whichever 

occurs later. 

No Alternative Inspections or Inspection 

Intervals 

(i) After accomplishing the revision 

required by paragraph (g) of this AD, no 

alternative inspection or inspection interval 

may be used unless the inspection or 

inspection interval is approved as an 

alternative methods of compliance (AMOC) 

in accordance with the procedures specified 

in paragraph (j) of this AD. 

FAA AD Differences 

Note 1: This AD differs from the MCAI 

and/or service information as follows: 

Although EASA Airworthiness Directive 

2010–0054, dated March 25, 2010, specifies 

both revising the maintenance program, 

doing certain repetitive actions, and doing 

corrective actions, this AD only requires the 

revision. Requiring a revision of the 

maintenance program, rather than requiring 

individual repetitive actions, requires 

operators to record AD compliance only at 

the time the revision is made. 

Other FAA AD Provisions 

(j) The following provisions also apply to 

this AD: 

(1) Alternative Methods of Compliance: 

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: Tom Rodriguez, Aerospace Engineer, 

International Branch, ANM–116, Transport 

Airplane Directorate, FAA 1601 Lind 

Avenue, SW., Renton, Washington 98057– 

3356; telephone (425) 227–1137; fax (425) 

227–1149. Information may be e-mailed 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. 

Related Information 

(k) Refer to MCAI EASA Airworthiness 

Directive 2010–0054, dated March 25, 2010; 

328 Support Services Dornier 328 


jlentini on DSK4TPTVN1PROD with PROPOSALS
Federal Register / Vol. 76, No. 193 / Wednesday, October 5, 2011 / Proposed Rules 61641 

Certification Maintenance Requirements 

Document TM–CMR–010793–ALL, Revision 

13, dated April 30, 2007; and 328 Support 

Services Dornier 328JET Certification 

Maintenance Requirements Document TM– 

CMR–010599–ALL, Revision 2, dated May 1, 

2007; for related information. 

Issued in Renton, Washington, on 

September 22, 2011. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2011–25580 Filed 10–4–11; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2011–0998; Directorate 

Identifier 2011–NM–046–AD] 

RIN 2120–AA64 

Airworthiness Directives; Airbus Model 

A319–111, –112, and –132 Airplanes; 

Model A320–111, –211, –212, –214 and 

–232 Airplanes; and Model A321–111, 

–211, –212, and –231 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: 

Cases of corrosion findings have been 

reported on the overwing refueling aperture 

(used to fill the fuel tank by gravity) on the 

wing top skin. * * * 

* * * * * 

This condition, if not corrected, could, in 

combination with a lightning strike in this 

area, create a source of ignition in a fuel tank, 

possibly resulting in a fire or explosion and 

consequent loss of the aeroplane. 

* * * * * 

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 November 21, 

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, 

Airworthiness Office—EAS, 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: 

Sanjay Ralhan, Aerospace Engineer, 

International Branch, ANM–116, 

Transport Airplane Directorate, FAA, 

1601 Lind Avenue, SW., Renton, 

Washington 98057–3356; telephone 

(425) 227–1405; 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–2011–0998; Directorate Identifier 

2011–NM–046–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 2011–0034, 

dated March 2, 2011 (referred to after 

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

condition for the specified products. 

The MCAI states: 

Cases of corrosion findings have been 

reported on the overwing refueling aperture 

(used to fill the fuel tank by gravity) on the 

wing top skin. The reported corrosion was on 

the mating surface of the aperture flange, 

underneath the refuel adaptor. Corrosion 

findings have been repaired on a case by case 

basis in accordance with approved data. 

For certain aeroplanes (identified by MSN 

in the applicability section of this AD), the 

provided repair contained instructions to 

apply primer coating on the mating surface. 

Since doing those repairs, it has been found 

that this primer coating may prevent proper 

electrical bonding provision between the 

overwing refuelling cap adaptor and the wing 

skin. 

This condition, if not corrected, could, in 

combination with a lightning strike in this 

area, create a source of ignition in a fuel tank, 

possibly resulting in a fire or explosion and 

consequent loss of the aeroplane. 

For the reasons described above, this AD 

requires a one-time electrical bonding check 

between the gravity fill re-fuel adaptor and 

the top skin panels on the affected aeroplanes 

and, in case of findings [a general visual 

inspection for corrosion of the component 

interface and adjacent area], the application 

of the associated corrective actions [i.e. 

repair]. 

You may obtain further information by 

examining the MCAI in the AD docket. 

Relevant Service Information 

Airbus has issued Service Bulletin 

A320–57–1152, dated June 14, 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 


jlentini on DSK4TPTVN1PROD with PROPOSALS