Federal Register / Vol. 77, No. 210 / Tuesday, October 30, 2012 / Rules and Regulations 65613 

4137; phone (562) 627–5233; fax (562) 627– 

5210; email: roger.durbin@faa.gov. 

(l) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) of the service information listed in this 

paragraph under 5 U.S.C. 552(a) and 1 CFR 

part 51. 

(2) You must use this service information 

as applicable to do the actions required by 

this AD, unless the AD specifies otherwise. 

(i) Boeing Alert Service Bulletin MD80– 

57A243, dated December 20, 2011. 

(ii) Reserved. 

(3) For The Boeing Company service 

information identified in this AD, contact 

Boeing Commercial Airplanes, Attention: 

Data & Services Management, 3855 

Lakewood Boulevard, MC D800–0019, Long 

Beach, CA 90846–0001; telephone 206–544– 

5000, extension 2; fax 206–766–5683; 

Internet https://www.myboeingfleet.com. 

(4) You may view this service information 

at 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. 

(5) You may view this service information 

that is incorporated by reference at the 

National Archives and Records 

Administration (NARA). For information on 

the availability of this material at NARA, call 

202–741–6030, or go to: http:// 

www.archives.gov/federal-register/cfr/ibrlocations.html. 

Issued in Renton, Washington, on October 

12, 2012. 

Kalene C. Yanamura, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2012–26073 Filed 10–29–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2012–1104; Directorate 

Identifier 2012–NM–073–AD; Amendment 

39–17226; AD 2012–21–10] 

RIN 2120–AA64 

Airworthiness Directives; The Boeing 

Company Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule; request for 

comments. 

SUMMARY: We are adopting a new 

airworthiness directive (AD) for certain 

The Boeing Company Model 777–200LR 

and –300ER series airplanes. This AD 

requires reviewing the airplane’s 

maintenance records for each rudder 

power control unit (PCU) to identify the 

condition of its related reaction link 

assembly, and replacing the rudder PCU 

and its related reaction link assembly if 

necessary. This AD was prompted by a 

report of an abnormal airframe vibration 

in the aft fuselage during flight. We are 

issuing this AD to prevent excessive 

freeplay in the rudder control surface, 

which could cause rudder vibration, 

and result in structural damage severe 

enough to prevent continued safe flight 

and landing. 

DATES: This AD is effective November 

14, 2012. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in the AD 

as of November 14, 2012. 

We must receive comments on this 

AD by December 14, 2012. 

ADDRESSES: You may send comments, 

using the procedures found in 14 CFR 

11.43 and 11.45, 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 20590, between 9 a.m. 

and 5 p.m., Monday through Friday, 

except Federal holidays. 

For service information identified in 

this AD, contact Boeing Commercial 

Airplanes, Attention: Data & Services 

Management, P.O. Box 3707, MC 2H–65, 

Seattle, WA 98124–2207; telephone 

206–544–5000, extension 1; fax 206– 

766–5680; Internet https:// 

www.myboeingfleet.com. You may 

review copies of the referenced service 

information at the FAA, Transport 

Airplane Directorate, 1601 Lind Avenue 

SW., Renton, 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 street address for 

the Docket Office (phone: 800–647– 

5527) is in the ADDRESSES section. 

Comments will be available in the AD 

docket shortly after receipt. 

FOR FURTHER INFORMATION CONTACT: 

Kenneth Frey, Aerospace Engineer, 

Systems and Equipment Branch, ANM– 

130S, FAA, Seattle Aircraft Certification 

Office, 1601 Lind Avenue SW., Renton, 

WA 98057–3356; phone: (425) 917– 

6468; fax: (425) 917–6590; email: 

Kenneth.frey@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Discussion 

We have received a report of an 

abnormal airframe vibration in the aft 

fuselage during flight. A subsequent 

inspection of the rudder PCU 

installations found that the bushing 

liners were missing from all six end cap 

assemblies on the three rudder PCUs. 

An investigation revealed that the cause 

of the problem was failure of the bond 

between the liner and the bushing 

substrate because of the use of liquid 

nitrogen during installation of the 

bushing into the reaction link end cap 

housing. This condition, if not 

corrected, could result in excessive 

freeplay in the rudder control surface, 

which could cause rudder vibration, 

and result in structural damage severe 

enough to prevent continued safe flight 

and landing. 

Relevant Service Information 

We reviewed Boeing Alert Service 

Bulletin 777–27A0109, dated December 

1, 2011. The service information 

describes procedures, for airplanes 

having certain line numbers, for 

reviewing the airplane’s maintenance 

records for each rudder PCU to identify 

the condition of its related reaction link 

assembly, and replacing the rudder PCU 

and its related reaction link assembly if 

necessary. 

FAA’s Determination 

We are issuing this AD because we 

evaluated all the relevant information 

and determined the unsafe condition 

described previously is likely to exist or 

develop in other products of this same 

type design. 

AD Requirements 

This AD requires accomplishing the 

actions specified in the service 

information described previously. 

FAA’s Justification and Determination 

of the Effective Date 

No U.S. airplanes are affected by this 

AD. Therefore, we find that notice and 

opportunity for prior public comment 

are unnecessary and that good cause 

exists for making this amendment 

effective in less than 30 days. 

Comments Invited 

This AD is a final rule that involves 

requirements affecting flight safety and 

was not preceded by notice and an 


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65614 Federal Register / Vol. 77, No. 210 / Tuesday, October 30, 2012 / Rules and Regulations 

opportunity for public comment. 

However, we invite you to send any 

written data, views, or arguments about 

this AD. Send your comments to an 

address listed under the ADDRESSES

section. Include docket number FAA– 

2012–1104 and Directorate Identifier 

2012–NM–073–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 amend this AD because of 

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 AD. 

Costs of Compliance 

We estimate that this AD affects 0 

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 

Review of the airplane’s maintenance records ............ 1 work-hour × $85 per hour = $85 ............................... $0 $85 

Replacement ................................................................. 12 work-hours × $85 per hour = $1,020 ...................... 5,784 6,804 

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): 

2012–21–10 The Boeing Company: 

Amendment 39–17226; Docket No. 

FAA–2012–1104; Directorate Identifier 

2012–NM–073–AD. 

(a) Effective Date 

This AD is effective November 14, 2012. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to The Boeing Company 

Model 777–200LR and –300ER series 

airplanes, certificated in any category, 

identified in Boeing Alert Service Bulletin 

777–27A0109, dated December 1, 2011. 

(d) Subject 

Joint Aircraft System Component (JASC)/ 

Air Transport Association (ATA) of America 

Code 27, Flight controls. 

(e) Unsafe Condition 

This AD was prompted by a report of an 

abnormal airframe vibration in the aft 

fuselage during flight. We are issuing this AD 

to prevent excessive freeplay in the rudder 

control surface, which could cause rudder 

vibration, and result in structural damage 

severe enough to prevent continued safe 

flight and landing. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Review of the Maintenance Records 

Within 48 months after the effective date 

of this AD, review the airplane’s maintenance 

records for each rudder power control unit 

(PCU) to identify the condition of its related 

reaction link assembly, in accordance with 

the Accomplishment Instructions of Boeing 

Alert Service Bulletin 777–27A0109, dated 

December 1, 2011. 

(h) Corrective Action 

(1) For any reaction link assembly 

identified during the records review required 

by paragraph (g) of this AD as having 

Condition 4, as specified in the 

Accomplishment Instructions of Boeing Alert 

Service Bulletin 777–27A0109, dated 

December 1, 2011: Within 48 months after 

the effective date of this AD, remove the 

affected rudder PCU and its related reaction 

link assembly, and install a serviceable 

rudder PCU and its related reaction link 

assembly, in accordance with the 

Accomplishment Instructions of Boeing Alert 

Service Bulletin 777–27A0109, dated 

December 1, 2011. 

(2) The replacement PCU reaction link 

assembly must meet Condition 1, 2, or 3 of 

Part 1 of the Accomplishment Instructions of 

Boeing Alert Service Bulletin 777–27A0109, 

dated December 1, 2011. As an alternative, 

the bushings in the PCU reaction link 

assembly may be replaced in accordance 

with Part 3 of the Accomplishment 

Instructions of Boeing Alert Service Bulletin 

777–27A0109, dated December 1, 2011. 

(i) Parts Installation Limitations 

As of the effective date of this AD, no 

person may install a rudder PCU and its 

related reaction link assembly identified in 

Boeing Alert Service Bulletin 777–27A0109, 

dated December 1, 2011, on any airplane, 

unless that rudder PCU and its related 

reaction link assembly meet Condition 1, 2, 

or 3, of Part 1 of the Accomplishment 


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Federal Register / Vol. 77, No. 210 / Tuesday, October 30, 2012 / Rules and Regulations 65615 

Instructions of Boeing Alert Service Bulletin 

777–27A0109, dated December 1, 2011. 

(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 Kenneth Frey, Aerospace Engineer, 

Systems and Equipment Branch, ANM–130S, 

FAA, Seattle Aircraft Certification Office, 

1601 Lind Avenue SW., Renton, WA 98057– 

3356; phone: (425) 917–6468; fax: (425) 917– 

6590; email: Kenneth.frey@faa.gov. 

(l) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) of the service information listed in this 

paragraph under 5 U.S.C. 552(a) and 1 CFR 

part 51. 

(2) You must use this service information 

as applicable to do the actions required by 

this AD, unless the AD specifies otherwise. 

(i) Boeing Alert Service Bulletin 777– 

27A0109, dated December 1, 2011. 

(ii) Reserved. 

(3) For service information identified in 

this AD, contact Boeing Commercial 

Airplanes, Attention: Data & Services 

Management, P.O. Box 3707, MC 2H–65, 

Seattle, WA 98124–2207; telephone 206– 

544–5000, extension 1; fax 206–766–5680; 

Internet https://www.myboeingfleet.com. 

(4) You may view this service information 

at 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. 

(5) You may view this service information 

that is incorporated by reference at the 

National Archives and Records 

Administration (NARA). For information on 

the availability of this material at NARA, call 

202–741–6030, or go to: http:// 

www.archives.gov/federal-register/cfr/ibrlocations.html. 

Issued in Renton, Washington, on October 

11, 2012. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2012–26074 Filed 10–29–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2012–0146; Directorate 

Identifier 2011–NM–115–AD; Amendment 

39–17227; AD 2012–21–11] 

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–601–3A, CL–601–3R, and CL–604 

Variants) airplanes. This AD was 

prompted by reports of deformation at 

the neck of the pressure regulator body 

on the oxygen cylinder and regulator 

assemblies (CRAs), and an electrical 

wiring harness in the area of the oxygen 

cylinder with no protective conduit 

sleeving. This AD requires inspecting to 

determine if certain oxygen pressure 

regulators are installed and replacing 

oxygen CRAs containing pressure 

regulators that do not meet the required 

material properties. This AD also 

requires inspecting for damaged wiring, 

and repairing or replacing wiring if 

necessary. We are issuing this AD to 

prevent rupture of the oxygen cylinder, 

which in the case of cabin 

depressurization, would lead to oxygen 

not being available when required; and 

to detect and correct unprotected wiring 

that could chafe against the oxygen 

system components or surrounding 

structure in the area, and lead to 

electrical arcing and an oxygen-fed fire. 

DATES: This AD becomes effective 

December 4, 2012. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of December 4, 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: 

Cesar Gomez, Aerospace Engineer, 

Airframe and Mechanical Systems 

Branch, ANE–171, FAA, New York 

Aircraft Certification Office (ACO), 1600 

Stewart Avenue, Suite 410, Westbury, 

New York 11590; telephone (516) 228– 

7318; 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 February 22, 2012 (77 FR 

10413). That NPRM proposed to correct 

an unsafe condition for the specified 

products. The MCAI states: 

During a routine inspection, deformation 

was found at the neck of the pressure 

regulator body on the oxygen Cylinder and 

Regulator Assemblies (CRA) of a BD–700– 

1A11 aeroplane. 

An investigation by the vendor, Avox 

Systems Inc., revealed that the deformation 

was attributed to two (2) batches of raw 

material that did not meet the required 

tensile strength. This may cause elongation of 

the pressure regulator neck, which could 

result in rupture of the oxygen cylinder, and 

in the case of cabin depressurization, oxygen 

would not be available when required. 

Although there have been no reported 

failures to date on any CL–600–2B16 

aeroplanes, oxygen pressure regulators, Part 

Numbers (P/N) 806370–12, could be part of 

the affected batches. 

It has also been found that the electrical 

wiring harness in the area of the oxygen 

cylinder has been installed without 

protection. Unprotected wiring could chafe 

against the oxygen system components or 

surrounding structure in the area, which 

could lead to electrical arcing and an oxygen 

fed fire. 

This [Transport Canada Civil Aviation 

(TCCA)] directive mandates [an inspection to 

determine if a certain oxygen CRA is 

installed and] the replacement of oxygen 

CRAs containing pressure regulators that do 

not meet the required material properties and 

to [do a general visual inspection of] and 

protect the affected wiring. 

Corrective actions include repairing 

or replacing any damaged wiring. 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 Limit Applicability 

Bombardier requested that we remove 

the CL–601–3A and –3R Variants of 

Model CL–600–2B16 airplanes from the 


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