Federal Register / Vol. 77, No. 79 / Tuesday, April 24, 2012 / Rules and Regulations 24353 

(h) Other FAA AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, New York Aircraft 

Certification Office (ACO), ANE–170, 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 ACO, send it 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. 

(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. 

(i) Related Information 

Refer to MCAI Canadian Airworthiness 

Directive CF–2011–14, dated June 17, 2011; 

and Bombardier Service Bulletin 84–32–89, 

dated March 22, 2011; for related 

information. 

(j) 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) Bombardier Service Bulletin 84–32–89, 

dated March 22, 2011. 

(2) For service information identified in 

this AD, contact Bombardier, Inc., Q-Series 

Technical Help Desk, 123 Garratt Boulevard, 

Toronto, Ontario M3K 1Y5, Canada; 

telephone 416–375–4000; fax 416–375–4539; 

email thd.qseries@aero.bombardier.com; 

Internet http://www.bombardier.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. 2012–9472 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–2011–1095; Directorate 

Identifier 2010–NM–241–AD; Amendment 

39–17032; AD 2012–08–15] 

RIN 2120–AA64 

Airworthiness Directives; Bombardier, 

Inc. Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for certain 

Bombardier, Inc. Model CL–600–2B16 

(CL–604 Variant) airplanes. This AD 

was prompted by multiple reports of 

short circuit events during pre-delivery 

inspections and test flights, one of 

which resulted in smoke in the cockpit. 

This AD requires replacing or relocating 

of certain circuit breaker panel (CBP) 

bus bars on certain airplanes, inspecting 

for any loose or improperly crimped 

lugs in certain electrical panel locations 

and replacement if necessary, and 

inspection for foreign object damage in 

certain areas and removal if necessary. 

We are issuing this AD to prevent 

arcing, damage to adjacent structure, 

smoke in the cockpit, or loss of system 

redundancies. 

DATES: This AD becomes effective May 

29, 2012. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of May 29, 2012. 

ADDRESSES: You may examine the AD 

docket on the Internet at http:// 

www.regulations.gov or in person at the 

U.S. Department of Transportation, 

Docket Operations, M–30, West 

Building Ground Floor, Room W12–140, 

1200 New Jersey Avenue SE., 

Washington, DC. 

FOR FURTHER INFORMATION CONTACT: 

Assata Dessaline, Aerospace Engineer, 

Avionics and Flight Test Branch, ANE– 

172, New York Aircraft Certification 

Office (ACO), FAA, 1600 Stewart Ave., 

Suite 410, Westbury, NY 11590; 

telephone (516) 228–7301; fax (516) 

794–5531. 

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 was published in the Federal 

Register on October 26, 2011 (76 FR 

66203). That NPRM proposed to correct 

an unsafe condition for the specified 

products. The MCAI states: 

During pre-delivery inspections and test 

flights, several short circuit events were 

reported, one of which resulted in smoke in 

the cockpit. There were no in-service 

incidents. 

Investigations have identified three 

conditions affecting the wiring of Circuit 

Breaker Panels 1, 2, 3 and 4 (CBP–1, CBP– 

2, CBP–3, and CBP–4) and Junction Boxes 17 

and 18 (JB17 and JB18), which would lead to 

short circuiting: 

1. In CBP–1, there may be low clearance 

between specific bus bars and the circuit 

breaker panel structure. 

2. Some nickel-plated terminal lugs, size 

number 22–20 with a green insulating sleeve, 

may not have been manufactured to 

applicable standards. These terminal lugs 

may have been installed in CBP–1, CBP–2, 

CBP–3, CBP–4, JB17 and JB18. This 

manufacturing defect affects the mechanical 

hold of the wire in the crimped lug barrel. 

3. In JB17, JB18 and the above-mentioned 

CBPs, foreign object debris (FOD) may be 

found. 

If not corrected, these conditions could 

result in arcing, damage to adjacent structure, 

smoke in the cockpit, or loss of system 

redundancies. 

This TCCA directive is issued to mandate 

the replacement or relocation of the specific 

CBP–1 bus bars, the [detailed] inspection, 

and rework if necessary, of any loose or 

improperly crimped lugs in CBP–1, CBP–2, 

CBP–3, CBP–4, JB17 and JB18, and to ensure 

there is no FOD in the affected areas [via a 

general visual inspection for FOD, and 

removal if necessary]. 

You may obtain further information by 

examining the MCAI in the AD docket. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. We 

considered the comment received. 

Request To Change Applicability 

Bombardier, Inc. requested the 

applicability be revised to remove the 

CL–601–3A and CL–601–3R Variant 

airplanes, since only the CL–604 Variant 

is affected. 

We agree because only the CL–604 

Variant is affected. We have changed the 

preamble and paragraph (c) of this final 

rule to specify only the CL–604 Variant. 

Conclusion 

We reviewed the available data, 

including the comment received, and 

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24354 Federal Register / Vol. 77, No. 79 / Tuesday, April 24, 2012 / Rules and Regulations 

determined that air safety and the 

public interest require adopting the AD 

with the change described previously 

and minor editorial changes to the 

paragraph identifier format. We 

determined that these changes will not 

increase the economic burden on any 

operator or increase the scope of the AD. 

Costs of Compliance 

We estimate that this AD will affect 

69 products of U.S. registry. We also 

estimate that it will take about 6 workhours per product to comply with the 

basic requirements of this AD. The 

average labor rate is $85 per work-hour. 

Required parts will cost about $347 per 

product. Where the service information 

lists required parts costs that are 

covered under warranty, we have 

assumed that there will be no charge for 

these parts. As we do not control 

warranty coverage for affected parties, 

some parties may incur costs higher 

than estimated here. Based on these 

figures, we estimate the cost of this AD 

to the U.S. operators to be $59,133, or 

$857 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 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 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 AD and placed it in the AD docket. 

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 the NPRM (76 FR 66203, 

October 26, 2011), 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. 

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: 

2012–08–15 Bombardier, Inc.: Amendment 

39–17032. Docket No. FAA–2011–1095; 

Directorate Identifier 2010–NM–241–AD. 

(a) Effective Date 

This airworthiness directive (AD) becomes 

effective May 29, 2012. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Bombardier, Inc. Model 

CL–600–2B16 (CL–604 Variant) airplanes, 

certificated in any category, serial numbers 

5701 through 5752 inclusive, 5754 through 

5775 inclusive, 5777, 5779 through 5781 

inclusive, 5783 through 5790 inclusive, 5792, 

5794 through 5796 inclusive, 5798, 5801, and 

5804. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 24: Electrical Power. 

(e) Reason 

This AD was prompted by multiple reports 

of short circuit events during pre-delivery 

inspections and test flights, one of which 

resulted in smoke in the cockpit. We are 

issuing this AD to prevent arcing, damage to 

adjacent structure, smoke in the cockpit, or 

loss of system redundancies. 

(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) Inspections, Bus Bar Actions, and 

Corrective Actions 

For airplanes having serial numbers 5701 

through 5752 inclusive, 5754 through 5775 

inclusive, 5777, 5780 through 5781 inclusive, 

5783 through 5790 inclusive, 5792, 5794 

through 5796 inclusive, 5798, 5801, and 

5804: Within 800 flight hours after the 

effective date of this AD, do the actions in 

paragraphs (g)(1), (g)(2), and (g)(3) of this AD, 

in accordance with the Accomplishment 

Instructions of Bombardier Service Bulletin 

605–24–004, dated January 18, 2010. 

(1) Do a detailed inspection in circuit 

breaker panel (CBP) CBP–1 for loose lugs and 

for crimped lugs that have any of the 

conditions specified in step 2.B.(9)(d) of 

Bombardier Service Bulletin 605–24–004, 

dated January 18, 2010. Before further flight, 

replace all loose lugs and all crimped lugs in 

CBP–1 that have any of the conditions 

specified in Step 2.B.(9)(d) of Bombardier 

Service Bulletin 605–24–004, dated January 

18, 2010. 

(2) Relocate or replace the CBP–1 bus bars 

as applicable. 

(3) Do a general visual inspection for 

foreign object damage (FOD). If any FOD is 

found: Before further flight, remove the FOD. 

(h) Inspections and Corrective Actions 

For airplanes having serial numbers 5701 

through 5752 inclusive, 5754 through 5756 

inclusive, 5758 through 5775 inclusive, 5779, 

5781, 5788, 5789, 5792, 5795, 5798, 5801, 

and 5804: Within 800 flight hours after the 

effective date of this AD, do the actions in 

paragraph (h)(1) and (h)(2) of this AD, in 

accordance with the Accomplishment 

Instructions of Bombardier Service Bulletin 

605–24–002, dated December 7, 2009. 

(1) Do a detailed inspection for loose lugs 

and for crimped lugs that have any of the 

conditions specified in step 2.B.(2)(d) of 

Bombardier Service Bulletin 605–24–002, 

dated December 7, 2009, in CBP–2, CBP–3, 

CBP–4, junction box (JB) JB17, and JB18. 

Before further flight, replace all loose lugs 

and all crimped lugs that have any of the 

conditions specified in step 2.B.(2)(d) of 

Bombardier Service Bulletin 605–24–002, 

dated December 7, 2009, in CBP–2, CBP–3, 

CBP–4, JB17, and JB18. 

(2) Do a general visual inspection for FOD. 

If any FOD is found: Before further flight, 

remove the FOD. 

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Federal Register / Vol. 77, No. 79 / Tuesday, April 24, 2012 / Rules and Regulations 24355 

(i) Other FAA AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, New York Aircraft 

Certification Office, ANE–170, 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 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. 

(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 

Refer to MCAI Canadian Airworthiness 

Directive CF–2010–25, dated August 3, 2010; 

Bombardier Service Bulletin 605–24–002, 

dated December 7, 2009; and Bombardier 

Service Bulletin 605–24–004, dated January 

18, 2010; for related information. 

(k) 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) Bombardier Service Bulletin 605–24– 

002, dated December 7, 2009. 

(ii) Bombardier Service Bulletin 605–24– 

004, dated January 18, 2010. 

(2) For service information identified in 

this AD, contact Bombardier, Inc., 400 CoˆteVertu Road West, Dorval, Que ́bec H4S 1Y9, 

Canada; phone: 514–855–5000; fax: 514–855– 

7401; email: thd.crj@aero.bombardier.com; 

Internet: http://www.bombardier.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 13, 

2012. 

John P. Piccola, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2012–9568 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–2011–0644; Directorate 

Identifier 2010–NM–265–AD; Amendment 

39–17026; AD 2012–08–09] 

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, 

–200LR, –300, –300ER, and 777F series 

airplanes. This AD was prompted by 

reports of cracks found in the Web 

pockets of the wing center section 

(WCS) spanwise beams. This AD 

requires repetitive detailed inspections 

and high frequency eddy current 

inspections for cracks of the WCS 

spanwise beams, and repair if necessary. 

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. 

DATES: This AD is effective May 29, 

2012. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication 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: 

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. 

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 was published in the Federal 

Register on June 29, 2011 (76 FR 38072). 

That NPRM proposed to require 

repetitive detailed inspections and high 

frequency eddy current (HFEC) 

inspections for cracks of the WCS 

spanwise beams, and repair if necessary. 

Comments 

We gave the public the opportunity to 

participate in developing this AD. The 

following presents the comments 

received on the proposal (76 FR 38072, 

June 29, 2011) and the FAA’s response 

to each comment. 

Requests to Reference Service Bulletin 

Information Notice (IN) and Revised 

Service Bulletin 

American Airlines (AAL) requested 

that we revise the NPRM (76 FR 38072, 

June 29, 2011) to refer to Boeing Service 

Bulletin Information Notice 777– 

57A0087 IN 01, dated March 24, 2011. 

AAL stated that this IN addresses 

information that is critical to the correct 

design and installation of repairs. If this 

IN is not incorporated, AAL asserted 

that the repairs could be designed and 

installed improperly. 

Boeing and Continental Airlines 

requested that we revise the NPRM 

(76 FR 38072, June 29, 2011) to refer to 

Boeing Service Bulletin 777–57A0087, 

Revision 1, dated August 24, 2011. They 

stated that without incorporating the 

latest issue of this service bulletin, the 

repairs provided in the original issue of 

this service bulletin could be installed 

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