Federal Register / Vol. 77, No. 75 / Wednesday, April 18, 2012 / Proposed Rules 23169 

(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. 

(i) Related Information 

For more information about this AD, 

contact Serj Harutunian, Aerospace Engineer, 

Propulsion Branch, ANM–140L, FAA, Los 

Angeles ACO, 3960 Paramount Boulevard, 

Lakewood, California 90712–4137; phone: 

562–627–5254; fax: 562–627–5210; email: 

serj.harutunian@faa.gov. 

Issued in Renton, Washington, on April 6, 

2012. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2012–9267 Filed 4–17–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2012–0335; Directorate 

Identifier 2011–NM–252–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 revise an 

existing airworthiness directive (AD) 

that applies to certain Bombardier 

Model CL–600–2B19 (Regional Jet 

Series 100 & 440) airplanes; all Model 

CL–600–2C10 (Regional Jet Series 700, 

701, & 702) airplanes; all Model CL– 

600–2D15 (Regional Jet Series 705) 

airplanes; and all Model CL–600–2D24 

(Regional Jet Series 900) airplanes. The 

existing AD currently requires replacing 

certain water accumulator assemblies 

having a certain part installed on the 

pitot and static lines of the air data 

computer (ADC). Since we issued that 

AD, an error was discovered in one 

service document number, and we have 

determined that credit for 

accomplishing actions in another 

erroneously cited service document 

should be removed from that AD. This 

proposed AD would correct the 

erroneous service document number 

and remove the other erroneously cited 

service document from that AD. We are 

proposing this AD to prevent pitot-static 

tubing from becoming partially or 

completely blocked by water, which 

could result in erroneous airspeed and 

altitude indications and consequent loss 

of control of the airplane. 

DATES: We must receive comments on 

this proposed AD by June 4, 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; phone: 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 & Mechanical Systems Branch, 

ANE–171, New York Aircraft 

Certification Office (ACO), FAA, 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–2012–0335; Directorate Identifier 

2011–NM–252–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. 

Discussion 

On September 28, 2011, we issued AD 

2011–21–07, Amendment 39–16830 (76 

FR 64801, October 19, 2011). That AD 

required actions intended to address an 

unsafe condition on the products listed 

above. 

Since we issued AD 2011–21–07, 

Amendment 39–16830 (76 FR 64801, 

October 19, 2011), an error was 

discovered in the document number 

specified in paragraph (i), ‘‘Credit for 

Actions Accomplished in Accordance 

with Previous Service Information,’’ of 

that AD. The citation in that paragraph 

should have read ‘‘Bombardier Service 

Bulletin 601R–34–147, Revision A, 

dated November 3, 2009.’’ Additionally, 

we have determined that ‘‘Bombardier 

Service Bulletin 670BA–34–147, dated 

April 1, 2009,’’ was incorrectly included 

in AD 2011–21–07 and should be 

removed from paragraph (i), ‘‘Credit for 

Actions Accomplished in Accordance 

with Previous Service Information,’’ of 

that AD. 

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. 

Costs of Compliance 

We estimate that this proposed AD 

affects 1,041 airplanes of U.S. registry. 

We estimate the following costs to 

comply with this proposed AD: 

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23170 Federal Register / Vol. 77, No. 75 / Wednesday, April 18, 2012 / Proposed Rules 

ESTIMATED COSTS

Action Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

Replacement [retained actions from AD 2011–21–07, 

Amendment 39–16830 (76 FR 64801, October 19, 2011)].

2 work-hours × $85 per hour 

= $170.

$1,200 $1,370 $1,426,170 

The new requirements of this 

proposed AD add no additional 

economic burden. 

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); 

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 

removing airworthiness directive (AD) 

2011–21–07, Amendment 39–16830 (76 

FR 64801, October 19, 2011), and 

adding the following new AD: 

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

0335; Directorate Identifier 2011–NM– 

252–AD. 

(a) Comments Due Date 

We must receive comments by June 4, 

2012. 

(b) Affected ADs 

This AD revises AD 2011–21–07, 

Amendment 39–16830 (76 FR 64801, October 

19, 2011). 

(c) Applicability 

This AD applies to Bombardier, Inc. Model 

CL–600–2B19 (Regional Jet Series 100 & 440) 

airplanes, serial numbers 7003 through 7067 

inclusive, 7069 through 7990 inclusive, 8000 

through 8107 inclusive, and subsequent; all 

Model CL–600–2C10 (Regional Jet Series 700, 

701, & 702) airplanes; all Model CL–600– 

2D15 (Regional Jet Series 705) airplanes; and 

all Model CL–600–2D24 (Regional Jet Series 

900) airplanes; certificated in any category. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 34: Navigation. 

(e) Reason 

This AD was prompted by reports of 

airspeed mismatch between the pilot and copilot’s airspeed indicators. We are issuing 

this AD prevent pitot-static tubing from 

becoming partially or completely blocked by 

water, which could result in erroneous 

airspeed and altitude indications and 

consequent loss of control of the airplane. 

(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) Retained Replacement, With Corrections 

This paragraph restates the replacement 

required by paragraph (g) of AD 2011–21–07, 

Amendment 39–16830 (76 FR 64801, October 

19, 2011), with corrections. Within 9 months 

after November 23, 2011 (the effective date of 

AD 2011–21–07), do the actions specified in 

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

applicable. 

(1) For Model CL–600–2B19 (Regional Jet 

Series 100 & 440) airplanes identified in 

Bombardier Service Bulletin 601R–34–147, 

Revision B, dated March 8, 2011: Replace 

water accumulator assemblies having part 

numbers (P/N) 50029–001, 9435015, 50030– 

001, and 9435014 installed on the pitot and 

static lines of the air data computer (ADC) 

with new or serviceable water accumulator 

assemblies having P/N 50036–001, in 

accordance with the Accomplishment 

Instructions of Bombardier Service Bulletin 

601R–34–147, Revision B, dated March 8, 

2011. 

(2) For Model CL–600–2C10 (Regional Jet 

Series 700, 701, & 702), CL–600–2D15 

(Regional Jet Series 705), and CL–600–2D24 

(Regional Jet Series 900) airplanes: Replace 

water accumulator assemblies having P/N 

50033–001 installed on the pitot and static 

lines of the ADC with new or serviceable 

water accumulator assemblies having P/N 

50036–001, in accordance with the 

Accomplishment Instructions of Bombardier 

Service Bulletin 670BA–34–030, Revision B, 

dated March 23, 2010. 

(h) Parts Installation 

As of November 23, 2011, no person may 

install on any airplane a water accumulator 

assembly, P/N 50029–001, 9435015, 50030– 

001, or 9435014 for Model CL–600–2B19 

(Regional Jet Series 100 & 440) airplanes; or 

P/N 50033–001 for Model CL–600–2C10 

(Regional Jet Series 700, 701, & 702) 

airplanes, Model CL–600–2D15 (Regional Jet 

Series 705) airplanes, and Model CL–600– 

2D24 (Regional Jet Series 900) airplanes; on 

the pitot and static lines of the ADC. 

(i) Credit for Previous Actions 

(1) This paragraph provides credit for the 

replacement required by paragraph (g)(1) of 

this AD, if the replacement was performed 

before November 23, 2011, using Bombardier 

Service Bulletin 601R–34–147, Revision A, 

dated November 3, 2009 (for Model CL–600– 

2B19 (Regional Jet Series 100 & 440) 

airplanes). 

(2) This paragraph provides credit for the 

replacement required by paragraph (g)(2) of 

this AD, if the replacement was performed 

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Federal Register / Vol. 77, No. 75 / Wednesday, April 18, 2012 / Proposed Rules 23171 

before November 23, 2011, using Bombardier 

Service Bulletin 670BA–34–030, dated April 

1, 2009; or Revision A, dated November 3, 

2009 (for Model CL–600–2C10 (Regional Jet 

Series 700, 701, & 702) airplanes, Model CL– 

600–2D15 (Regional Jet Series 705) airplanes, 

and Model CL–600–2D24 (Regional Jet Series 

900) airplanes). 

(j) 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 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. 

(k) Related Information 

Refer to MCAI Canadian Airworthiness 

Directive CF–2010–37, dated October 28, 

2010, and the following service information, 

for related information. 

(1) Bombardier Service Bulletin 601R–34– 

147, Revision B, dated March 8, 2011. 

(2) Bombardier Service Bulletin 670BA– 

34–030, Revision B, dated March 23, 2010. 

Issued in Renton, Washington, on April 6, 

2012. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2012–9266 Filed 4–17–12; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 71 

[Docket No. FAA–2012–0196; Airspace 

Docket No. 12–AWP–2] 

Proposed Amendment of Class E 

Airspace; Fairfield, CA 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: This action proposes to 

amend Class E airspace at Travis Air 

Force Base (AFB), Fairfield, CA. The 

proposed decommissioning of the 

Travis VHF Omni-Directional Radio 

Range (VOR) has made this action 

necessary for the safety and 

management of Instrument Flight Rules 

(IFR) operations at the airport. 

DATES: Comments must be received on 

or before June 4, 2012. 

ADDRESSES: Send comments on this 

proposal to the U.S. Department of 

Transportation, Docket Operations, M– 

30, West Building Ground Floor, Room 

W12–140, 1200 New Jersey Avenue SE., 

Washington, DC 20590; telephone (202) 

366–9826. You must identify FAA 

Docket No. FAA–2012–0196; Airspace 

Docket No. 12–AWP–2, at the beginning 

of your comments. You may also submit 

comments through the Internet at 

http://www.regulations.gov. 

FOR FURTHER INFORMATION CONTACT: 

Eldon Taylor, Federal Aviation 

Administration, Operations Support 

Group, Western Service Center, 1601 

Lind Avenue SW., Renton, WA 98057; 

telephone (425) 203–4537. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

Interested parties are invited to 

participate in this proposed rulemaking 

by submitting such written data, views, 

or arguments, as they may desire. 

Comments that provide the factual basis 

supporting the views and suggestions 

presented are particularly helpful in 

developing reasoned regulatory 

decisions on the proposal. Comments 

are specifically invited on the overall 

regulatory, aeronautical, economic, 

environmental, and energy-related 

aspects of the proposal. 

Communications should identify both 

docket numbers (FAA Docket No. FAA 

2012–0196 and Airspace Docket No. 12– 

AWP–2) and be submitted in triplicate 

to the Docket Management System (see 

ADDRESSES section for address and 

phone number). You may also submit 

comments through the Internet at 

http://www.regulations.gov. 

Commenters wishing the FAA to 

acknowledge receipt of their comments 

on this action must submit with those 

comments a self-addressed stamped 

postcard on which the following 

statement is made: ‘‘Comments to FAA 

Docket No. FAA–2012–0196 and 

Airspace Docket No. 12–AWP–2’’. The 

postcard will be date/time stamped and 

returned to the commenter. 

All communications received on or 

before the specified closing date for 

comments will be considered before 

taking action on the proposed rule. The 

proposal contained in this action may 

be changed in light of comments 

received. All comments submitted will 

be available for examination in the 

public docket both before and after the 

closing date for comments. A report 

summarizing each substantive public 

contact with FAA personnel concerned 

with this rulemaking will be filed in the 

docket. 

Availability of NPRMs 

An electronic copy of this document 

may be downloaded through the 

Internet at http://www.regulations.gov. 

Recently published rulemaking 

documents can also be accessed through 

the FAA’s web page at http:// 

www.faa.gov/airports_airtraffic/ 

air_traffic/publications/ 

airspace_amendments/. 

You may review the public docket 

containing the proposal, any comments 

received, and any final disposition in 

person in the Dockets Office (see the 

ADDRESSES section for the address and 

phone number) between 9 a.m. and 5 

p.m., Monday through Friday, except 

federal holidays. An informal docket 

may also be examined during normal 

business hours at the Northwest 

Mountain Regional Office of the Federal 

Aviation Administration, Air Traffic 

Organization, Western Service Center, 

Operations Support Group, 1601 Lind 

Avenue SW., Renton, WA 98057. 

Persons interested in being placed on 

a mailing list for future NPRMs should 

contact the FAA’s Office of Rulemaking, 

(202) 267–9677, for a copy of Advisory 

Circular No. 11–2A, Notice of Proposed 

Rulemaking Distribution System, which 

describes the application procedure. 

The Proposal 

The FAA is proposing an amendment 

to Title 14 Code of Federal Regulations 

(14 CFR) Part 71 by amending Class E 

airspace designated as an extension to 

class D surface area at Travis AFB, 

Fairfield, CA. Airspace reconfiguration 

is necessary due to the proposed 

decommissioning of the Travis VOR, 

and would enhance the safety and 

management of aircraft operations at the 

airport. 

Class E airspace designations are 

published in paragraph 6004, of FAA 

Order 7400.9V, dated August 9, 2011, 

and effective September 15, 2011, which 

is incorporated by reference in 14 CFR 

Part 71.1. The Class E airspace 

designation listed in this document will 

be published subsequently in this 

Order. 

The FAA has determined this 

proposed regulation only involves an 

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