Federal Register / Vol. 77, No. 35 / Wednesday, February 22, 2012 / Proposed Rules 10413 

(h) Exception to Service Information 

(1) Where Boeing Alert Service Bulletin 

777–53A0043, dated November 9, 2011, 

specifies a compliance time ‘‘after the 

original issue date on this service bulletin,’’ 

this AD requires compliance within the 

specified compliance time after the effective 

date of this AD. 

(2) Where Boeing Alert Service Bulletin 

777–53A0043, dated November 9, 2011, 

specifies that ‘‘other approved methods’’ can 

be used to install a repair, this AD requires 

that the repair be done using a method 

approved in accordance with the procedures 

specified in paragraph (i) of this AD. 

(i) 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. 

(j) Related Information 

(1) For more information about this AD, 

contact James Sutherland, Aerospace 

Engineer, Airframe Branch, ANM–120S, 

FAA, Seattle Aircraft Certification Office, 

1601 Lind Avenue SW., Renton, Washington 

98057–3356; phone: 425–917–6533; fax: 425– 

917–6590; email: James.Sutherland@faa.gov. 

(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. You may 

also review the referenced service 

information in the docket at 

www.regulations.gov (refer to Docket No. 

FAA–2012–0149). 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. 

Issued in Renton, Washington, on February 

10, 2012. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2012–4002 Filed 2–21–12; 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] 

RIN 2120–AA64 

Airworthiness Directives; Bombardier, 

Inc. Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to adopt 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 proposed 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 had no protective 

conduit sleeving. This proposed AD 

would require 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 proposed AD would 

also require inspecting for damaged 

wiring and repairing or replacing wiring 

if necessary. We are proposing this AD 

to prevent rupture of the oxygen 

cylinder, which in the case of cabin 

depressurization, oxygen would not be 

available when required; and to detect 

and correct unprotected wiring that 

could chafe against the oxygen system 

components or surrounding structure in 

the area, which could lead to electrical 

arcing and an oxygen-fed fire. 

DATES: We must receive comments on 

this proposed AD by April 9, 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. 

For service information identified in 

this proposed AD, contact Bombardier, 

Inc., 400 Coˆte-Vertu Road West, Dorval, 

Que ́bec H4S 1Y9, Canada; telephone 

514–855–5000; fax 514–855–7401; email 

thd.crj@aero.bombardier.com; Internet 

http://www.bombardier.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: 

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: 

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–2012–0146; Directorate Identifier 

2011–NM–115–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. 


wreier-aviles on DSK5TPTVN1PROD with PROPOSALS
10414 Federal Register / Vol. 77, No. 35 / Wednesday, February 22, 2012 / Proposed Rules 

Discussion 

Transport Canada Civil Aviation 

(TCCA), has issued Canadian 

Airworthiness Directive CF–2011–11, 

dated May 25, 2011 (referred to after 

this as ‘‘the MCAI’’), 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 [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. 

Relevant Service Information 

Bombardier, Inc. has issued Service 

Bulletin 605–24–005, dated January 31, 

2011; and Bombardier Service Bulletin 

605–35–001, Revision 01, dated 

February 28, 2011. 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 Proposed AD 

and the MCAI or Service Information 

This proposed AD differs from the 

MCAI and/or service information as 

follows: The MCAI and service 

information do not specify corrective 

actions if damaged wiring is found; this 

proposed AD requires repairing or 

replacing any damaged wiring. This 

proposed AD also includes serial 

numbers (S/N) 5824 and subsequent in 

the applicability. Those airplanes are 

included in paragraph (j) of the 

proposed AD, which prohibits the 

installation of certain regulators. 

Costs of Compliance 

Based on the service information, we 

estimate that this proposed AD would 

affect about 72 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 

$6,120, or $85 per product. 

In addition, we estimate that certain 

follow-on actions (wiring protection) 

would take about 2 work-hours and 

require parts costing $0, for a cost of 

$170 per product. We have no way of 

determining the number of products 

that may need these actions. 

We have received no definitive data 

that would enable us to provide cost 

estimates for certain other on-condition 

actions (repairing or replacing damaged 

wiring) specified in this proposed AD. 

Authority for This Rulemaking 

Title 49 of the United States Code 

specifies the FAA’s authority to issue 

rules on aviation safety. Subtitle I, 

section 106, describes the authority of 

the FAA Administrator. ‘‘Subtitle VII: 

Aviation Programs,’’ describes in more 

detail the scope of the Agency’s 

authority. 

We are issuing this rulemaking under 

the authority described in ‘‘Subtitle VII, 

Part A, Subpart III, Section 44701: 

General requirements.’’ Under that 

section, Congress charges the FAA with 

promoting safe flight of civil aircraft in 

air commerce by prescribing regulations 

for practices, methods, and procedures 

the Administrator finds necessary for 

safety in air commerce. This regulation 

is within the scope of that authority 

because it addresses an unsafe condition 

that is likely to exist or develop on 

products identified in this rulemaking 

action. 

Regulatory Findings 

We determined that this proposed AD 

would not have federalism implications 

under Executive Order 13132. This 

proposed AD would not have a 

substantial direct effect on the States, on 

the relationship between the national 

Government and the States, or on the 

distribution of power and 

responsibilities among the various 

levels of government. 

For the reasons discussed above, I 

certify this proposed regulation: 

1. Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866; 

2. Is not a ‘‘significant rule’’ under the 

DOT Regulatory Policies and Procedures 

(44 FR 11034, February 26, 1979); and 

3. Will not 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 proposed AD and placed it in the 

AD docket. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Incorporation by reference, 

Safety. 

The Proposed Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA proposes to amend 14 CFR part 

39 as follows: 

PART 39—AIRWORTHINESS 

DIRECTIVES 

1. The authority citation for part 39 

continues to read as follows: 

Authority: 49 U.S.C. 106(g), 40113, 44701. 

§ 39.13 [Amended] 

2. The FAA amends § 39.13 by adding 

the following new AD: 

Bombardier, Inc.: Docket No. FAA–2012– 

0146; Directorate Identifier 2011–NM– 

115–AD. 

(a) Comments Due Date 

We must receive comments by April 9, 

2012. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Bombardier, Inc. Model 

CL–600–2B16 (CL–601–3A, CL–601–3R, & 

CL–604 Variants) airplanes; certificated in 

any category; serial numbers 5701 through 

5802 inclusive, 5804 through 5808 inclusive, 

5810 through 5816 inclusive, 5819, 5822, 

5823 and subsequent. 


wreier-aviles on DSK5TPTVN1PROD with PROPOSALS
Federal Register / Vol. 77, No. 35 / Wednesday, February 22, 2012 / Proposed Rules 10415 

1The Commission’s proposal includes 

incorporation of the minor corrections and errata to 

the Version 2.0 Standards made by NAESB and 

reported to the Commission on June 28, 2011, 

October 11, 2011 and December 22, 2011. 

(d) Subject 

Air Transport Association (ATA) of 

America Codes 24: Electrical power; and 35: 

Oxygen. 

(e) Reason 

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 had no protective conduit sleeving. 

We are issuing this AD to prevent rupture of 

the oxygen cylinder, which in the case of 

cabin depressurization, oxygen would not be 

available when required; and to detect and 

correct unprotected wiring that could chafe 

against the oxygen system components or 

surrounding structure in the area, which 

could lead to electrical arcing and an oxygenfed fire. 

(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) Inspect and Replace the Oxygen CRA 

For airplanes with serial numbers 5701 

through 5802 inclusive, 5804 through 5808 

inclusive, 5810 through 5816 inclusive, 5819, 

5822, and 5823: Within 750 flight hours after 

the effective date of this AD, but no later than 

6 months after the effective date of this AD, 

inspect the serial number of oxygen pressure 

regulators having part number (P/N) 806370– 

12, in accordance with the Accomplishment 

Instructions, Section 2.B.(3), of Bombardier 

Service Bulletin 605–35–001, Revision 01, 

dated February 28, 2011. A review of 

airplane maintenance records is acceptable in 

lieu of this inspection if the part number of 

the oxygen pressure regulator can be 

conclusively determined from that review. 

(1) If any serial number is found that is 

listed in table 2 of Bombardier Service 

Bulletin 605–35–001, Revision 01, dated 

February 28, 2011, before further flight, 

replace the affected oxygen CRA in 

accordance with the Accomplishment 

Instructions of Bombardier Service Bulletin 

605–35–001, Revision 01, dated February 28, 

2011. 

(2) If any serial number is found that is not 

listed in table 2 of Bombardier Service 

Bulletin 605–35–001, Revision 01, dated 

February 28, 2011, no further action is 

required by this paragraph. 

(h) Inspection and Corrective Action of the 

Oxygen CRA Wiring Harness 

For airplanes with serial numbers 5701 

through 5778 inclusive, 5780 through 5796 

inclusive, 5798, 5800 through 5802 inclusive, 

5804, 5805, 5808, 5811, and 5813: At the 

compliance times specified in paragraphs 

(h)(1) and (h)(2) of this AD, do a detailed 

inspection for damaged wiring (i.e., signs of 

damaged insulation, abrasion, or chafing) of 

the electrical wiring harness for the oxygen 

CRA, and protect the electrical wiring 

harness, in accordance with the 

Accomplishment Instructions of Bombardier 

Service Bulletin 605–24–005, dated January 

31, 2011. If any damaged wiring is found, 

before further flight, repair or replace any 

damaged wiring in accordance with a method 

approved by the Manager, New York Aircraft 

Certification Office (ACO), FAA; or Transport 

Canada Civil Aviation (TCCA) (or its 

delegated agent). 

(1) For airplanes on which the oxygen CRA 

must be replaced as required by paragraph 

(g)(1) of this AD: At the time the oxygen CRA 

is replaced. 

(2) For airplanes other than those 

identified in paragraph (h)(1) of this AD: 

Within 800 flight hours after the effective 

date of this AD. 

(i) Credit for Actions Accomplished in 

Accordance With Previous Service 

Information 

Actions accomplished before the effective 

date of this AD accordance with Bombardier 

Service Bulletin 605–35–001, dated January 

31, 2011, are considered acceptable for 

compliance with the corresponding actions 

specified in this AD. 

(j) Parts Installation 

For all airplanes: As of the effective date 

of this AD, no person may install an oxygen 

pressure regulator (P/N 806370–12) having 

any serial number listed in table 2 of 

Bombardier Service Bulletin 605–35–001, 

Revision 01, dated February 28, 2011, on any 

airplane, unless a suffix ‘‘-A’’ is beside the 

serial number. 

(k) 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 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. 

(l) Related Information 

Refer to MCAI Canadian Airworthiness 

Directive CF–2011–11, dated May 25, 2011, 

and the service bulletins identified in 

paragraphs (l)(1) and (l)(2) of this AD, for 

related information. 

(1) Bombardier Service Bulletin 605–24– 

005, dated January 31, 2011. 

(2) Bombardier Service Bulletin 605–35– 

001, Revision 01, dated February 28, 2011. 

Issued in Renton, Washington, on February 

7, 2012. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2012–4160 Filed 2–21–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF ENERGY 

Federal Energy Regulatory 

Commission 

18 CFR Part 284 

[Docket No. RM96–1–037] 

Standards for Business Practices for 

Interstate Natural Gas Pipelines 

AGENCY: Federal Energy Regulatory 

Commission, DOE. 

ACTION: Notice of proposed rulemaking. 

SUMMARY: The Federal Energy 

Regulatory Commission (Commission) is 

proposing to amend its regulations at 18 

CFR 284.12 to incorporate by reference 

the latest version (Version 2.0) of 

business practice standards adopted by 

the Wholesale Gas Quadrant of the 

North American Energy Standards 

Board (NAESB) applicable to natural gas 

pipelines.1 The Commission also 

proposes to provide guidance on the 

standards the Commission applies to 

requests for waivers or extensions of 

time to comply with NAESB Standards. 

These standards can be obtained from 

NAESB at 1301 Fannin, Suite 2350, 

Houston, TX 77002, telephone: (713) 

356–0060, http://www.naesb.org, and 

are available for viewing in the 

Commission’s Public Reference Room. 

DATES: Comments are due March 23, 

2012. 

ADDRESSES: Comments, identified by 

docket number, may be filed in the 

following ways: 

• Electronic Filing through http:// 

www.ferc.gov. Documents created 

electronically using word processing 

software should be filed in native 

applications or print-to-PDF format and 

not in a scanned format. 

• Mail/Hand Delivery: Those unable 

to file electronically may mail or handdeliver comments to: Federal Energy 

Regulatory Commission, Secretary of the 

Commission, 888 First Street NE., 

Washington, DC 20426. 


wreier-aviles on DSK5TPTVN1PROD with PROPOSALS