Federal Register / Vol. 76, No. 202 / Wednesday, October 19, 2011 / Proposed Rules 64857 

Credit for Actions Accomplished in 

Accordance With Previous Service 

Information 

(j) For all airplanes, except for Model A319 

series airplanes on which modifications 

28238, 28162, and 28342 have been 

incorporated, replacing both FWCs in 

accordance with Airbus Service Bulletin 

A320–31–1334, dated July 30, 2009; Revision 

01, dated December 14, 2009; or Revision 02, 

dated September 13, 2010; or Revision 03, 

dated March 15, 2011; before the effective 

date of this AD is acceptable for compliance 

with the corresponding replacement required 

by paragraph (i) of this AD. 

(k) Replacing both FWCs in accordance 

with Airbus Service Bulletin A320–31–1141, 

dated March 6, 2000; Revision 01, dated May 

25, 2000; Revision 02, dated January 22, 

2001; or Revision 03, dated June 12, 2001; 

before the effective date of this AD is 

acceptable for compliance with the 

corresponding installation specified in 

paragraph (h) of this AD. 

Parts Installation 

(l) As of the effective date of this AD, and 

after accomplishing the actions in paragraph 

(i) of this AD, no person may install a FWC 

with a P/N listed in table 1 of this AD on any 

airplane. 

FAA AD Differences 

Note 2: This AD differs from the MCAI 

and/or service information as follows: No 

differences. 

Other FAA AD Provisions 

(m) The following provisions also apply to 

this AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, International 

Branch, ANM–116, Transport Airplane 

Directorate, FAA, has the authority to 

approve AMOCs for this AD, if requested 

using the procedures found in 14 CFR 39.19. 

In accordance with 14 CFR 39.19, send your 

request to your principal inspector or local 

Flight Standards District Office, as 

appropriate. If sending information directly 

to the International Branch, send it to ATTN: 

Tim Dulin, Aerospace Engineer, International 

Branch, ANM–116, Transport Airplane 

Directorate, FAA, 1601 Lind Avenue, SW., 

Renton, Washington 98057–3356; telephone 

425–227–2141; fax 425–227–1149. 

Information may be e-mailed to: 9-ANM-116- 

AMOC-REQUESTS@faa.gov. Before using 

any approved AMOC, notify your appropriate 

principal inspector, or lacking a principal 

inspector, the manager of the local flight 

standards district office/certificate holding 

district office. The AMOC approval letter 

must specifically reference this AD. 

(2) Airworthy Product: For any requirement 

in this AD to obtain corrective actions from 

a manufacturer or other source, use these 

actions if they are FAA-approved. Corrective 

actions are considered FAA-approved if they 

are approved by the State of Design Authority 

(or their delegated agent). You are required 

to assure the product is airworthy before it 

is returned to service. 

Related Information 

(n) Refer to MCAI EASA Airworthiness 

Directive 2011–0001, dated January 10, 2011; 

Airbus Service Bulletin A320–31–1106, 

Revision 04, dated December 21, 1999; 

Airbus Mandatory Service Bulletin A320–31– 

1106, Revision 05, dated September 21, 2000; 

Airbus Service Bulletin A320–31–1141, 

Revision 04, dated February 14, 2002; and 

Airbus Service Bulletin A320–31–1334, 

Revision 04, including Appendix 01, dated 

September 12, 2011; for related information. 

Issued in Renton, Washington, on October 

11, 2011. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2011–27026 Filed 10–18–11; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2011–1089; Directorate 

Identifier 2011–NM–110–AD] 

RIN 2120–AA64 

Airworthiness Directives; Bombardier, 

Inc. Model BD–100–1A10 (Challenger 

300) Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to adopt a new 

airworthiness directive (AD) for the 

products listed above. This proposed 

AD results from mandatory continuing 

airworthiness information (MCAI) 

originated by an aviation authority of 

another country to identify and correct 

an unsafe condition on an aviation 

product. The MCAI describes the unsafe 

condition as: 

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 * * * 

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 not being available 

when required. 

* * * * * 

The proposed AD would require 

actions that are intended to address the 

unsafe condition described in the MCAI. 

DATES: We must receive comments on 

this proposed AD by December 5, 2011. 

ADDRESSES: You may send comments by 

any of the following methods: 

• Federal eRulemaking Portal: Go to 

http://www.regulations.gov. Follow the 

instructions for submitting comments. 

• Fax: (202) 493–2251. 

• Mail: U.S. Department of 

Transportation, Docket Operations, 

M–30, West Building Ground Floor, 

Room W12–140, 1200 New Jersey 

Avenue, SE., Washington, DC 20590. 

• Hand Delivery: U.S. Department of 

Transportation, Docket Operations, 

M–30, West Building Ground Floor, 

Room W12–140, 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; 

e-mail 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, 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–2011–1089; Directorate Identifier 

2011–NM–110–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 


srobinson on DSK4SPTVN1PROD with PROPOSALS
64858 Federal Register / Vol. 76, No. 202 / Wednesday, October 19, 2011 / Proposed Rules 

consider all comments received by the 

closing date and may amend this 

proposed AD based on those comments. 

We will post all comments we 

receive, without change, to http:// 

www.regulations.gov, including any 

personal information you provide. We 

will also post a report summarizing each 

substantive verbal contact we receive 

about this proposed AD. 

Discussion 

Transport Canada Civil Aviation 

(TCCA), which is the aviation authority 

for Canada, has issued Canadian 

Airworthiness Directive CF–2011–09, 

dated May 13, 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 

not being available when required. 

Although there have been no reported 

failures to date on any Model BD–100–1A10 

aeroplanes, oxygen pressure regulators, Part 

Numbers (P/N) 806370–06 and 806370–14 

could be part of the affected batches. 

This [Canadian] 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. 

You may obtain further information 

by examining the MCAI in the AD 

docket. 

Relevant Service Information 

Bombardier has issued Service 

Bulletin 100–35–05, Revision 02, dated 

January 31, 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 AD and the 

MCAI or Service Information 

We have reviewed the MCAI and 

related service information and, in 

general, agree with their substance. But 

we might have found it necessary to use 

different words from those in the MCAI 

to ensure the AD is clear for U.S. 

operators and is enforceable. In making 

these changes, we do not intend to differ 

substantively from the information 

provided in the MCAI and related 

service information. 

We might also have proposed 

different actions in this AD from those 

in the MCAI in order to follow FAA 

policies. Any such differences are 

highlighted in a Note within the 

proposed AD. 

Costs of Compliance 

Based on the service information, we 

estimate that this proposed AD would 

affect about 79 products of U.S. registry. 

We also estimate that it would take 

about 3 work-hours per product to 

comply with the basic requirements of 

this proposed AD. The average labor 

rate is $85 per work-hour. Required 

parts would cost about $0 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 the proposed AD on U.S. 

operators to be $20,145, or $255 per 

product. 

Authority for This Rulemaking 

Title 49 of the United States Code 

specifies the FAA’s authority to issue 

rules on aviation safety. Subtitle I, 

section 106, describes the authority of 

the FAA Administrator. ‘‘Subtitle VII: 

Aviation Programs,’’ describes in more 

detail the scope of the Agency’s 

authority. 

We are issuing this rulemaking under 

the authority described in ‘‘Subtitle VII, 

Part A, Subpart III, Section 44701: 

General requirements.’’ Under that 

section, Congress charges the FAA with 

promoting safe flight of civil aircraft in 

air commerce by prescribing regulations 

for practices, methods, and procedures 

the Administrator finds necessary for 

safety in air commerce. This regulation 

is within the scope of that authority 

because it addresses an unsafe condition 

that is likely to exist or develop on 

products identified in this rulemaking 

action. 

Regulatory Findings 

We determined that this proposed AD 

would not have federalism implications 

under Executive Order 13132. This 

proposed AD would not have a 

substantial direct effect on the States, on 

the relationship between the national 

Government and the States, or on the 

distribution of power and 

responsibilities among the various 

levels of government. 

For the reasons discussed above, I 

certify this proposed regulation: 

1. Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866; 

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

DOT Regulatory Policies and Procedures 

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

3. Will not have a significant 

economic impact, positive or negative, 

on a substantial number of small entities 

under the criteria of the Regulatory 

Flexibility Act. 

We prepared a regulatory evaluation 

of the estimated costs to comply with 

this proposed AD and placed it in the 

AD docket. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Incorporation by reference, 

Safety. 

The Proposed Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

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–2011– 

1089; Directorate Identifier 2011–NM– 

110–AD. 

Comments Due Date 

(a) We must receive comments by 

December 5, 2011. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to Bombardier, Inc. 

Model BD–100–1A10 (Challenger 300) 

airplanes, certificated in any category, serial 

numbers 20003 and subsequent. 

Subject 

(d) Air Transport Association (ATA) of 

America Code 35: Oxygen. 


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Federal Register / Vol. 76, No. 202 / Wednesday, October 19, 2011 / Proposed Rules 64859 

Reason 

(e) The mandatory continuing 

airworthiness information (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 * * * 

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 not being available 

when required. 

* * * * * 

Compliance 

(f) You are responsible for having the 

actions required by this AD performed within 

the compliance times specified, unless the 

actions have already been done. 

Actions 

(g) For airplanes having serial numbers 

20003 through 20291 inclusive: Within 750 

flight hours after the effective date of this AD, 

do an inspection of oxygen pressure 

regulators having P/N 806370–06 or 806370– 

14, to determine the serial number, in 

accordance with paragraph 2.B.(2) of the 

Accomplishment Instructions of Bombardier 

Service Bulletin 100–35–05, Revision 02, 

dated January 31, 2011. 

(1) If the serial number of the oxygen 

pressure regulator is listed in Table 2 of the 

Accomplishment Instructions of Bombardier 

Service Bulletin 100–35–05, Revision 02, 

dated January 31, 2011, replace the affected 

oxygen CRA, in accordance with paragraph 

2.C. of the Accomplishment Instructions of 

Bombardier Service Bulletin 100–35–05, 

Revision 02, dated January 31, 2011. 

(2) If the serial number of the oxygen 

pressure regulator is not listed in Table 2 of 

the Accomplishment Instructions of 

Bombardier Service Bulletin 100–35–05, 

Revision 02, dated January 31, 2011, no 

further action is required by this paragraph. 

Parts Installation 

(h) For all airplanes: As of the effective 

date of this AD, no person may install an 

oxygen pressure regulator (P/N 806370–06 or 

806370–14) having any serial number listed 

in Table 2 of Bombardier Service Bulletin 

100–35–05, Revision 02, dated January 31, 

2011, on any airplane, unless a suffix ‘‘-A’’ 

is beside the serial number. 

FAA AD Differences 

Note 1: This AD differs from the MCAI 

and/or service information as follows: 

The MCAI applicability specifies only 

airplanes having certain serial numbers and 

prohibits installation of the affected part on 

those airplanes. Because the affected part 

could be rotated onto any of the Model BD– 

100–1A10 (Challenger 300) airplanes, this 

AD applies to serial numbers 20003 and 

subsequent. This difference has been 

coordinated with Transport Canada Civil 

Aviation (TCCA). 

Other FAA AD Provisions 

(i) 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. 

Related Information 

(j) Refer to MCAI Canadian Airworthiness 

Directive CF–2011–09, dated May 13, 2011; 

and Bombardier Service Bulletin 100–35–05, 

Revision 02, dated January 31, 2011; for 

related information. 

Issued in Renton, Washington, on October 

11, 2011. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2011–27011 Filed 10–18–11; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 43 

[Docket No. FAA–2011–0763; Notice No. 11– 

05] 

RIN 2120–AJ91 

Pilot Loading of Navigation and Terrain 

Awareness Database Updates 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to amend 

the maintenance regulations by 

removing from the preventive 

maintenance category the task of 

updating databases used in selfcontained, front-panel or pedestalmounted navigation equipment. This 

change would allow pilots who operate 

certificated aircraft to update the 

specified databases and eliminate the 

requirement for certificated mechanics 

or repair stations to perform the update. 

The effect of this revision would be to 

ensure that pilots using specified 

navigation equipment have the most 

current and accurate navigational data 

and thereby increase aviation safety. 

DATES: Send comments on or before 

December 19, 2011. 

ADDRESSES: Send comments identified 

by docket number [Docket No. FAA– 

2011–0763; Notice No. 11–05] using any 

of the following methods: 

• Federal eRulemaking Portal: Go to 

http://www.regulations.gov and follow 

the online instructions for sending your 

comments electronically. 

• Mail: Send comments to Docket 

Operations, M–30; U.S. Department of 

Transportation (DOT), 1200 New Jersey 

Avenue, SE., Room W12–140, West 

Building Ground Floor, Washington, DC 

20590–0001. 

• Hand Delivery or Courier: Take 

comments to Docket Operations in 

Room W12–140 of the West Building 

Ground Floor at 1200 New Jersey 

Avenue, SE., Washington, DC, between 

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

Friday, except Federal holidays. 

• Fax: Fax comments to Docket 

Operations at 202–493–2251. 

Privacy: The FAA will post all 

comments it receives, without change, 

to http://www.regulations.gov, including 

any personal information the 

commenter provides. Using the search 

function of the docket Web site, anyone 

can find and read the electronic form of 

all comments received into any FAA 

dockets, including the name of the 

individual sending the comment (or 

signing the comment for an association, 

business, labor union, etc.). DOT’s 

complete Privacy Act Statement can be 

found in the Federal Register published 

on April 11, 2000 (65 FR 19477–78), as 

well as at http://DocketsInfo.dot.gov. 

Docket: Background documents or 

comments received may be read at 

http://www.regulations.gov at any time. 

Follow the online instructions for 

accessing the docket or Docket 

Operations in Room W12–140 of the 

West Building Ground Floor at 1200 

New Jersey Avenue, SE., Washington, 

DC, between 9 a.m. and 5 p.m., Monday 

through Friday, except Federal holidays. 

FOR FURTHER INFORMATION CONTACT: For 

technical questions about this 

rulemaking action, contact Chris Parfitt, 

Flight Standards Service, Aircraft 

Maintenance Division—Avionics 

Maintenance Branch, AFS–360, Federal 


srobinson on DSK4SPTVN1PROD with PROPOSALS