Federal Register / Vol. 77, No. 79 / Tuesday, April 24, 2012 / Rules and Regulations 24357 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Incorporation by reference, 

Safety. 

Adoption of the Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA amends 14 CFR part 39 as 

follows: 

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: 

2012–08–09 The Boeing Company: 

Amendment 39–17026; Docket No. 

FAA–2011–0644; Directorate Identifier 

2010–NM–265–AD. 

(a) Effective Date 

This AD is effective May 29, 2012. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to The Boeing Company 

Model 777–200, –200LR, –300, –300ER, and 

777F series airplanes, certificated in any 

category, as identified in Boeing Service 

Bulletin 777–57A0087, Revision 1, dated 

August 24, 2011. 

(d) Subject 

Joint Aircraft System Component (JASC)/ 

Air Transport Association (ATA) of America 

Code 57: Wings. 

(e) Unsafe Condition 

This AD was prompted by reports of cracks 

found in the web pockets of the wing center 

section (WCS) spanwise beams. We are 

issuing this AD to detect and correct cracking 

in the WCS spanwise beams, which could 

result in reduced structural integrity of the 

wings. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Repetitive Inspections 

At the later of the times specified in 

paragraphs (g)(1) and (g)(2) of this AD, do a 

detailed inspection and a high frequency 

eddy current inspection for cracks of the web 

pockets of the WCS spanwise beams numbers 

1, 2, and 3; and a detailed inspection for 

cracks of any previously installed repairs; in 

accordance with the Accomplishment 

Instructions of Boeing Service Bulletin 777– 

57A0087, Revision 1, dated August 24, 2011. 

Repeat the inspections thereafter at intervals 

not to exceed 8,000 flight cycles. 

(1) Before the accumulation of 8,000 total 

flight cycles. 

(2) Within 6,000 flight cycles, or 1,125 

days, after the effective date of this AD, 

whichever occurs first. 

(h) Corrective Actions 

If any cracking is found during any 

inspection required by paragraph (g) of this 

AD, before further flight, repair the crack, 

including related investigative actions and all 

applicable corrective actions, in accordance 

with the Accomplishment Instructions of 

Boeing Service Bulletin 777–57A0087, 

Revision 1, dated August 24, 2011; except 

where Boeing Service Bulletin 777–57A0087, 

Revision 1, dated August 24, 2011, specifies 

to contact Boeing for repair instructions, 

before further flight, repair the cracking using 

a method approved in accordance with the 

procedures specified in paragraph (j) of this 

AD. 

(i) Credit for Actions Previous Actions 

This paragraph provides credit for actions 

required by paragraphs (g) and (h) of this AD 

if those actions were performed before the 

effective date of this AD using Boeing Alert 

Service Bulletin 777–57A0087, dated 

November 11, 2010. 

(j) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, Seattle Aircraft 

Certification Office (ACO), FAA, has the 

authority to approve AMOCs for this AD, if 

requested using the procedures found in 14 

CFR 39.19. In accordance with 14 CFR 39.19, 

send your request to your principal inspector 

or local Flight Standards District Office, as 

appropriate. If sending information directly 

to the manager of the ACO, send it to the 

attention of the person identified in the 

Related Information section of this AD. 

Information may be emailed to: 9-ANMSeattle-ACO-AMOC-Requests@faa.gov. 

(2) Before using any approved AMOC, 

notify your appropriate principal inspector, 

or lacking a principal inspector, the manager 

of the local flight standards district office/ 

certificate holding district office. 

(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 

For more information about this AD, 

contact James Sutherland, Aerospace 

Engineer, Airframe Branch, ANM–120S, 

FAA, Seattle Aircraft Certification Office 

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

Washington 98057–3356; phone: 425–917– 

6533; fax: 425–917–6590; email: 

James.Sutherland@faa.gov. 

(l) Material Incorporated by Reference 

(1) You must use the following service 

information to do the actions required by this 

AD, unless the AD specifies otherwise. The 

Director of the Federal Register approved the 

incorporation by reference (IBR) of the 

following service information under 5 U.S.C. 

552(a) and 1 CFR part 51: 

(i) Boeing Service Bulletin 777–57A0087, 

Revision 1, dated August 24, 2011. 

(2) For service information identified in 

this AD, contact Boeing Commercial 

Airplanes, Attention: Data & Services 

Management, P.O. Box 3707, MC 2H–65, 

Seattle, Washington 98124–2207; telephone 

206–544–5000, extension 1; fax 206–766– 

5680; email me.boecom@boeing.com; Internet 

https://www.myboeingfleet.com. 

(3) You may review copies of the 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. 

(4) You may also review copies of the 

service information that is incorporated by 

reference at the National Archives and 

Records Administration (NARA). For 

information on the availability of this 

material at an NARA facility, call 202–741– 

6030, or go to http://www.archives.gov/ 

federal_register/code_of_federal_regulations/ 

ibr_locations.html. 

Issued in Renton, Washington, on April 11, 

2012. 

John P. Piccola, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2012–9398 Filed 4–23–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2011–1165; Directorate 

Identifier 2011–NM–002–AD; Amendment 

39–17030; AD 2012–08–13] 

RIN 2120–AA64 

Airworthiness Directives; The Boeing 

Company Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for certain 

The Boeing Company Model 777–200 

and –300 series airplanes. This AD was 

prompted by reports of two failures of 

the single-tabbed bracket on the rudder. 

This AD requires replacing certain 

single-tabbed bonding brackets in the 

airplane empennage with two-tabbed 

bonding brackets. This AD also requires, 

for certain airplanes, installing new 

bonding jumpers, and measuring the 

resistance of the modified installation to 

verify resistance is within specified 

limits. We are issuing this AD to prevent 

failure of the bonding jumper bracket, 

which could result in loss of lightning 

protection ground path, which could 

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24358 Federal Register / Vol. 77, No. 79 / Tuesday, April 24, 2012 / Rules and Regulations 

lead to increased lightning-induced 

currents and subsequent damage to 

composite structures, hydraulic tubes, 

and actuator control electronics. In the 

event of a lightning strike, loss of 

lightning ground protection could result 

in the loss of control of the airplane. 

DATES: This AD is effective May 29, 

2012. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in the AD 

as of May 29, 2012. 

ADDRESSES: For service information 

identified in this AD, contact Boeing 

Commercial Airplanes, Attention: Data 

& Services Management, P.O. Box 3707, 

MC 2H–65, Seattle, Washington 98124– 

2207; telephone 206–544–5000, 

extension 1; fax 206–766–5680; email 

me.boecom@boeing.com; Internet 

https://www.myboeingfleet.com. You 

may review copies of the referenced 

service information at the FAA, 

Transport Airplane Directorate, 1601 

Lind Avenue SW., Renton, Washington. 

For information on the availability of 

this material at the FAA, call 425–227– 

1221. 

Examining the AD Docket 

You may examine the AD docket on 

the Internet at http:// 

www.regulations.gov; or in person at the 

Docket Management Facility between 

9 a.m. and 5 p.m., Monday through 

Friday, except Federal holidays. The AD 

docket contains this AD, the regulatory 

evaluation, any comments received, and 

other information. The address for the 

Docket Office (phone: 800–647–5527) is 

Document Management Facility, U.S. 

Department of Transportation, Docket 

Operations, M–30, West Building 

Ground Floor, Room W12–140, 1200 

New Jersey Avenue SE., Washington, 

DC 20590. 

FOR FURTHER INFORMATION CONTACT: 

Georgios Roussos, Aerospace Engineer, 

Systems and Equipment Branch, ANM– 

130S, Seattle Aircraft Certification 

Office (ACO), FAA, 1601 Lind Avenue 

SW., Renton, Washington 98057–3356; 

phone: (425) 917–6482; fax: (425) 917– 

6590; email: georgios.roussos@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to include an AD that would 

apply to the specified products. That 

NPRM published in the Federal 

Register on November 4, 2011 (76 FR 

68366). That NPRM proposed to require 

replacing certain single-tabbed bonding 

brackets in the airplane empennage with 

two-tabbed bonding brackets. That 

NPRM also proposed to require, for 

certain airplanes, installing new 

bonding jumpers, and measuring the 

resistance of the modified installation to 

verify resistance is within specified 

limits. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. The 

following presents the comments 

received on the proposal (76 FR 68366, 

November 4, 2011) and the FAA’s 

response to each comment. 

Support for the NPRM (76 FR 68366, 

November 4, 2011) 

The Boeing Company and United 

Airlines both support the NPRM (76 FR 

68366, November 4, 2011). 

Request To Exclude a Requirement 

American Airlines (AA) requested 

that we revise the NPRM (76 FR 68366, 

November 4, 2011) to exclude the 

requirement that states ‘‘Put the airplane 

back to a serviceable condition,’’ which 

is found in paragraph 3.B.7. of Boeing 

Service Bulletin 777–55A0014, Revision 

1, dated April 1, 2010. AA explained 

that this requirement does not affect the 

condition which the proposed AD seeks 

to address. AA reasoned that, as most 

operators will accomplish the 

modifications required by the service 

information as part of a maintenance 

visit, returning the airplane to a 

serviceable condition will not be 

possible in the context of that statement, 

but will rather occur at a point in time 

well after the work is complete. 

We disagree to exclude the 

requirement that states ‘‘Put the airplane 

back to a serviceable condition’’ in this 

final rule. The intent of this requirement 

is to ensure that all work that is 

performed as directed by the service 

information is verified to have been 

completed, and to ensure that 

modifications have been tested and are 

fully operational, prior to return to 

service. We are currently in the process 

of reviewing issues surrounding which 

actions in a service bulletin are 

necessary to be required in an AD in 

order to address the identified unsafe 

condition. Once we have thoroughly 

examined all aspects of this issue and 

have made a final determination, we 

will consider whether our current 

practice needs to be revised. We have 

not changed this AD in this regard. 

Revised Heading 

We have revised the heading for and 

the wording in paragraph (i) of this AD; 

this change has not changed the intent 

of that paragraph. 

Conclusion 

We reviewed the available data, 

including the comments received, and 

determined that air safety and the 

public interest require adopting the AD 

as proposed—except for minor editorial 

changes. We have determined that these 

minor changes: 

• Are consistent with the intent that 

was proposed in the NPRM (76 FR 

68366, November 4, 2011) for correcting 

the unsafe condition; and 

• Do not add any additional burden 

upon the public than was already 

proposed in the NPRM (76 FR 68366, 

November 4, 2011). 

Costs of Compliance 

We estimate that this AD affects 87 

airplanes of U.S. registry. 

We estimate the following costs to 

comply with this AD: 

ESTIMATED COSTS

Action Labor cost Parts cost Cost per product Cost on 

U.S. operators 

Replacement ............................................. 21 work-hours × $85 per hour = $1,785 .. $1,235 $3,020 $262,740 

ESTIMATED COSTS FOR CONCURRENT ACTIONS

Action Labor cost Parts cost Cost per product Cost on 

U.S. operators 

Replacement ............................................. 66 work-hours × $85 per hour = $5,610 .. $2,668 $8,278 $248,340 

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Federal Register / Vol. 77, No. 79 / Tuesday, April 24, 2012 / Rules and Regulations 24359 

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 

This AD will not have federalism 

implications under Executive Order 

13132. This AD will not have a 

substantial direct effect on the States, on 

the relationship between the national 

government and the States, or on the 

distribution of power and 

responsibilities among the various 

levels of government. 

For the reasons discussed above, I 

certify that this AD: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866, 

(2) Is not a ‘‘significant rule’’ under 

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. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Incorporation by reference, 

Safety. 

Adoption of the Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA amends 14 CFR part 39 as 

follows: 

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 airworthiness 

directive (AD): 

2012–08–13 The Boeing Company: 

Amendment 39–17030; Docket No. 

FAA–2011–1165; Directorate Identifier 

2011–NM–002–AD. 

(a) Effective Date 

This AD is effective May 29, 2012. 

(b) Affected ADs 

None. 

(c) Applicability 

The Boeing Company Model 777–200 and 

–300 series airplanes, certificated in any 

category, as identified in Boeing Service 

Bulletin 777–55A0014, Revision 1, dated 

April 1, 2010. 

(d) Subject 

Joint Aircraft System Component (JASC)/ 

Air Transport Association (ATA) of America 

Code 55: Stabilizers. 

(e) Unsafe Condition 

This AD was prompted by reports of two 

failures of the single-tabbed bracket on the 

rudder. We are issuing this AD to prevent 

failure of the bonding jumper bracket, which 

could result in loss of lightning protection 

ground path, which could lead to increased 

lightning-induced currents and subsequent 

damage to composite structures, hydraulic 

tubes, and actuator control electronics. In the 

event of a lightning strike, loss of lightning 

ground protection could result in the loss of 

control of the airplane. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Replacement 

Within 48 months after the effective date 

of this AD, replace certain single-tabbed 

bonding brackets in the airplane empennage 

with two-tabbed bonding brackets, in 

accordance with the Accomplishment 

Instructions of Boeing Service Bulletin 777– 

55A0014, Revision 1, dated April 1, 2010. 

(h) Concurrent Requirements 

For airplanes identified in Boeing Service 

Bulletin 777–55A0010, Revision 1, dated 

April 17, 2001: Prior to or concurrently with 

accomplishing the requirements of paragraph 

(g) of this AD, install new bonding jumpers, 

and do resistance measurements of the 

modified installation to verify resistance is 

within the limits specified in the 

Accomplishment Instructions of Boeing 

Service Bulletin 777–55A0010, Revision 1, 

dated April 17, 2001. Do the actions in 

accordance with the Accomplishment 

Instructions of Boeing Service Bulletin 777– 

55A0010, Revision 1, dated April 17, 2001. 

(i) Credit for Previous Actions 

(1) This paragraph provides credit for 

replacing certain single-tabbed bonding 

brackets with two-tabbed bonding brackets, 

as required by paragraph (g) of this AD, if the 

replacement was performed before the 

effective date of this AD using Boeing Alert 

Service Bulletin 777–55A0014, dated May 8, 

2008. 

(2) This paragraph provides credit for 

installing new bonding jumpers, and doing 

resistance measurements of the modified 

installation that verify the resistance is 

within the specified limits, as required by 

paragraph (h) of this AD, if the installation 

and measurements are performed before the 

effective date of this AD using Boeing Alert 

Service Bulletin 777–55A0010, dated October 

26, 2000. 

(j) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, Seattle Aircraft 

Certification Office, FAA, has the authority to 

approve AMOCs for this AD, if requested 

using the procedures found in 14 CFR 39.19. 

In accordance with 14 CFR 39.19, send your 

request to your principal inspector or local 

Flight Standards District Office, as 

appropriate. If sending information directly 

to the manager of the ACO, send it to the 

attention of the person identified in the 

Related Information section of this AD. 

Information may be emailed to: 9-ANMSeattle-ACO-AMOC-Requests@faa.gov. 

(2) Before using any approved AMOC, 

notify your appropriate principal inspector, 

or lacking a principal inspector, the manager 

of the local flight standards district office/ 

certificate holding district office. 

(k) Related Information 

For more information about this AD, 

contact Georgios Roussos, Aerospace 

Engineer, Systems and Equipment Branch, 

ANM–130S, Seattle Aircraft Certification 

Office (ACO), FAA, 1601 Lind Avenue SW., 

Renton, Washington 98057–3356; Phone: 

(425) 917–6482; fax: (425) 917–6590; email: 

georgios.roussos@faa.gov. 

(l) Material Incorporated by Reference 

(1) You must use the following service 

information to do the actions required by this 

AD, unless the AD specifies otherwise. The 

Director of the Federal Register approved the 

incorporation by reference (IBR) of the 

following service information under 5 U.S.C. 

552(a) and 1 CFR part 51: 

(i) Boeing Service Bulletin 777–55A0010, 

Revision 1, dated April 17, 2001. 

(ii) Boeing Service Bulletin 777–55A0014, 

Revision 1, dated April 1, 2010. 

(2) For service information identified in 

this AD, contact Boeing Commercial 

Airplanes, Attention: Data & Services 

Management, P.O. Box 3707, MC 2H–65, 

Seattle, Washington 98124–2207; telephone 

206–544–5000, extension 1; fax 206–766– 

5680; email me.boecom@boeing.com; Internet 

https://www.myboeingfleet.com. 

(3) You may review copies of the service 

information at the FAA. 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. 

(4) You may also review copies of the 

service information that is incorporated by 

reference at the National Archives and 

Records Administration (NARA). For 

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24360 Federal Register / Vol. 77, No. 79 / Tuesday, April 24, 2012 / Rules and Regulations 

information on the availability of this 

material at NARA, call 202–741–6030, or go 

to: http://www.archives.gov/federal-register/ 

cfr/ibr-locations.html. 

Issued in Renton, Washington, on April 12, 

2012. 

John P. Piccola, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2012–9476 Filed 4–23–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2012–0334; Directorate 

Identifier 2012–NM–001–AD; Amendment 

39–17024; AD 2012–08–07] 

RIN 2120–AA64 

Airworthiness Directives; Sicma Aero 

Seat Passenger Seat Assemblies, 

Installed on, But Not Limited to, ATR– 

GIE Avions de Transport Re ́gional 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule; request for 

comments. 

SUMMARY: We are superseding an 

existing airworthiness directive (AD) for 

certain Sicma Aero Seat Model 9401, 

9402, 9404, 9505, 9406, 9407, 9408, and 

9409 series passenger seat assemblies, 

installed on, but not limited to, ATR— 

GIE Avions de Transport Re ́gional 

Model ATR42 and ATR72 airplanes. 

That AD currently requires repetitive 

detailed inspections for cracking of the 

central and lateral spreaders of the 

affected seats, and repair or replacement 

of the spreader if necessary. This AD 

was prompted by a determination that 

the existing AD included Model 9505 

series passenger seat assemblies in the 

applicability instead of Model 9405 

series passenger seat assemblies. We are 

issuing this AD to detect and correct 

cracking of the central and lateral 

spreaders, which could lead to further 

cracking of the seat spreaders, causing 

injury to passengers or crew members 

during heavy turbulence in flight or in 

the event of an emergency landing. 

DATES: This AD becomes effective May 

9, 2012. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of November 21, 2011 (76 FR 68304, 

November 4, 2011). 

We must receive comments on this 

AD by June 8, 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. 

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 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: 

Jeffrey Lee, Aerospace Engineer, Boston 

Aircraft Certification Office, FAA, 

Engine & Propeller Directorate, 12 New 

England Executive Park, Burlington, MA 

01803; telephone (781) 238–7161; fax 

(781) 238–7170; email: 

jeffrey.lee@faa.gov. 

SUPPLEMENTARY INFORMATION: On 

October 20, 2011, we issued AD 2011– 

23–06, Amendment 39–16857 (76 FR 

68304, November 4, 2011). That AD 

required actions intended to address an 

unsafe condition on Sicma Aero Seat 

Model 9401, 9402, 9404, 9505, 9406, 

9407, 9408, and 9409 series passenger 

seat assemblies, installed on, but not 

limited to, ATR—GIE Avions de 

Transport Re ́gional Model ATR42 and 

ATR72 airplanes. 

Since we issued AD 2011–23–06, 

Amendment 39–16857 (76 FR 68304, 

November 4, 2011), we have determined 

that the applicability of that AD 

included Model 9505 series passenger 

seat assemblies in the applicability 

instead of Model 9405 series passenger 

seat assemblies. We have revised the 

applicability of this AD accordingly and 

added new paragraph (h) for Sicma Aero 

Seat Model 9405 series passenger seat 

assemblies. 

Change to Existing AD 

Since we issued AD 2011–23–06, 

Amendment 39–16857 (76 FR 68304, 

November 4, 2011), the AD format has 

been revised, and certain paragraphs 

have been rearranged. As a result, the 

corresponding paragraph identifiers 

have changed in this AD, as listed in the 

following table: 

REVISED PARAGRAPH IDENTIFIERS

Requirement in AD 

2011–23–06, Amendment 39–16857 

(76 FR 68304, 

November 4, 2011) 

Corresponding 

requirement 

in this AD 

paragraph (c) paragraph (c)(1) 

Note 1 paragraph (c)(2) 

paragraph (h) paragraph (i) 

paragraph (i) paragraph (j) 

paragraph (j) paragraph (k) 

FAA’s Determination and Requirements 

of This 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 issuing this 

AD because we evaluated all pertinent 

information and determined the unsafe 

condition exists and is likely to exist or 

develop on other products of the same 

type design. 

There are no products of this type 

currently registered in the United States. 

However, this rule is necessary to 

ensure that the described unsafe 

condition is addressed if any of these 

products are placed on the U.S. Register 

in the future. 

FAA’s Determination of the Effective 

Date 

Since there are currently no domestic 

operators of this product, notice and 

opportunity for public comment before 

issuing this AD are unnecessary. 

Comments Invited 

This AD is a final rule that involves 

requirements affecting flight safety, and 

we did not precede it by notice and 

opportunity for public comment. We 

invite you to send any written relevant 

data, views, or arguments about this AD. 

Send your comments to an address 

listed under the ADDRESSES section. 

Include ‘‘Docket No. FAA–2012–0334; 

Directorate Identifier 2012–NM–001– 

AD’’ at the beginning of your comments. 

We specifically invite comments on the 

overall regulatory, economic, 

environmental, and energy aspects of 

this AD. We will consider all comments 

received by the closing date and may 

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