43882 Federal Register / Vol. 75, No. 143 / Tuesday, July 27, 2010 / Proposed Rules 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2010–0700; Directorate 

Identifier 2010–NM–123–AD] 

RIN 2120–AA64 

Airworthiness Directives; Bombardier, 

Inc. 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 

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: 

The manufacturer has informed Transport 

Canada that a certain number of the resolver 

stators, which were installed in the angle of 

attack (AOA) transducers, were not cleaned 

correctly. This condition can degrade the 

AOA transducer performance at low 

temperatures resulting in freezing of the AOA 

transducer resolver, which may provide 

inaccurate AOA data to the Stall Protection 

System (SPS). If not corrected, this condition 

can result in early or late activation of the 

stick shaker and/or stick pusher. 

These conditions could result in 

reduced ability of the flight crew to 

maintain a safe flight and landing of the 

airplane. 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 September 10, 

2010. 

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 

W12–40, 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: 

Joseph Licata, Aerospace Engineer, 

Avionics and Flight Test Branch, ANE– 

172, FAA, New York Aircraft 

Certification Office (ACO), 1600 Stewart 

Avenue, Suite 410, Westbury, New York 

11590; telephone (516) 228–7361; 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–2010–0700; Directorate Identifier 

2010–NM–123–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 have lengthened the 30-day 

comment period for proposed ADs that 

address MCAI originated by aviation 

authorities of other countries to provide 

adequate time for interested parties to 

submit comments. The comment period 

for these proposed ADs is now typically 

45 days, which is consistent with the 

comment period for domestic transport 

ADs. 

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–2010–13, 

dated May 6, 2010 (referred to after this 

as ‘‘the MCAI’’), to correct an unsafe 

condition for the specified products. 

The MCAI states: 

The manufacturer has informed Transport 

Canada that a certain number of the resolver 

stators, which were installed in the angle of 

attack (AOA) transducers, were not cleaned 

correctly. This condition can degrade the 

AOA transducer performance at low 

temperatures resulting in freezing of the AOA 

transducer resolver, which may provide 

inaccurate AOA data to the Stall Protection 

System (SPS). If not corrected, this condition 

can result in early or late activation of the 

stick shaker and/or stick pusher. 

These conditions could result in 

reduced ability of the flight crew to 

maintain a safe flight and landing of the 

airplane. The required actions include 

an inspection to determine if certain 

AOA transducers are installed and 

replacement of affected transducers. 

You may obtain further information by 

examining the MCAI in the AD docket. 

Relevant Service Information 

Bombardier has issued Alert Service 

Bulletin A670BA–27–054, Revision A, 

dated January 18, 2010. 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 


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Federal Register / Vol. 75, No. 143 / Tuesday, July 27, 2010 / Proposed Rules 43883 

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 380 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 

$32,300, or $85 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–2010– 

0700; Directorate Identifier 2010–NM– 

123–AD. 

Comments Due Date 

(a) We must receive comments by 

September 10, 2010. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to Bombardier, Inc. 

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, certificated in any 

category, equipped with Thales angle of 

attack transducers having part number (P/N) 

C16258AA. 

Subject 

(d) Air Transport Association (ATA) of 

America Code 27: Flight Controls. 

Reason 

(e) The mandatory continuing 

airworthiness information (MCAI) states: 

‘‘The manufacturer has informed Transport 

Canada that a certain number of the resolver 

stators, which were installed in the angle of 

attack (AOA) transducers, were not cleaned 

correctly. This condition can degrade the 

AOA transducer performance at low 

temperatures resulting in freezing of the AOA 

transducer resolver, which may provide 

inaccurate AOA data to the Stall Protection 

System (SPS). If not corrected, this condition 

can result in early or late activation of the 

stick shaker and/or stick pusher.’’ 

These conditions could result in reduced 

ability of the flight crew to maintain a safe 

flight and landing of the airplane. 

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. 

Inspection 

(g) Within 750 flight hours after the 

effective date of this AD, inspect the serial 

number of each AOA transducer having P/N 

C16258AA to determine if the serial number 

is identified in paragraph 1.A. of Bombardier 

Alert Service Bulletin A670BA–27–054, 

Revision A, dated January 18, 2010, in 

accordance with the Accomplishment 

Instructions of Bombardier Alert Service 

Bulletin A670BA–27–054, Revision A, dated 

January 18, 2010. A review of airplane 

maintenance records is acceptable in lieu of 

this inspection if the serial number of the 

AOA transducer can be conclusively 

determined from that review. 

(1) If the serial number is not listed in 

paragraph 1.A. of Bombardier Alert Service 

Bulletin A670BA–27–054, Revision A, dated 

January 18, 2010, no further action is 

required by this AD other than compliance 

with paragraph (h) of this AD. 

(2) If the serial number is listed in 

paragraph 1.A. of Bombardier Alert Service 

Bulletin A670BA–27–054, Revision A, dated 

January 18, 2010, and has the suffix ‘‘C’’, no 

further action is required by this AD other 

than compliance with paragraph (h) of this 

AD. 

(3) If the serial number is listed in 

paragraph 1.A. of Bombardier Alert Service 

Bulletin A670BA–27–054, Revision A, dated 

January 18, 2010, and does not have the 

suffix ‘‘C’’, before further flight, replace the 

AOA transducer with a new or serviceable 

transducer, in accordance with Part C of the 

Accomplishment Instructions of Bombardier 

Alert Service Bulletin A670BA–27–054, 

Revision A, dated January 18, 2010. 

Note 1: To replace any AOA transducer, 

the replacement AOA transducer must either 

be outside of the affected serial numbers as 

identified in paragraph 1.A. of Bombardier 

Alert Service Bulletin A670BA–27–054, 

Revision A, dated January 18, 2010, or have 

the suffix ‘‘C’’. 

(h) As of the effective date of this AD, no 

AOA transducer having both a serial number 

and P/N C16258AA as identified in 

paragraph 1.A. of Bombardier Alert Service 

Bulletin A670BA–27–054, Revision A, dated 

January 18, 2010, may be installed on any 

airplane unless the AOA transducer has been 

inspected by the manufacturer and identified 

with the suffix ‘‘C’’. 

FAA AD Differences 

Note 2: This AD differs from the MCAI 

and/or service information as follows: No 

differences. 

Other FAA AD Provisions 

(i) The following provisions also apply to 

this AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, New York Aircraft 


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43884 Federal Register / Vol. 75, No. 143 / Tuesday, July 27, 2010 / Proposed Rules 

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. Send information 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 

on any airplane to which the AMOC applies, 

notify your principal maintenance inspector 

(PMI) or principal avionics inspector (PAI), 

as appropriate, or lacking a principal 

inspector, your local Flight Standards 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. 

(3) Reporting Requirements: For any 

reporting requirement in this AD, under the 

provisions of the Paperwork Reduction Act 

(44 U.S.C. 3501 et seq.), the Office of 

Management and Budget (OMB) has 

approved the information collection 

requirements and has assigned OMB Control 

Number 2120–0056. 

Related Information 

(j) Refer to MCAI Canadian Airworthiness 

Directive CF–2010–13, dated May 6, 2010; 

and Bombardier Alert Service Bulletin 

A670BA–27–054, Revision A, dated January 

18, 2010; for related information. 

Issued in Renton, Washington, on July 16, 

2010. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2010–18291 Filed 7–26–10; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 71 

[Docket No. FAA–2009–1182; Airspace 

Docket No. 09–ASW–37] 

Proposed Amendment of Class E 

Airspace; Searcy, AR 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: This action proposes to 

amend Class E airspace at Searcy, AR. 

Decommissioning of the Searcy nondirectional beacon (NDB) at Searcy 

Municipal Airport, Searcy, AR, has 

made this action necessary for the safety 

and management of Instrument Flight 

Rules (IFR) operations at Searcy 

Municipal Airport. 

DATES: 0901 UTC. Comments must be 

received on or before September 10, 

2010. 

ADDRESSES: Send comments on this 

proposal to the U.S. Department of 

Transportation, Docket Operations, 1200 

New Jersey Avenue, SE., West Building 

Ground Floor, Room W12–140, 

Washington, DC 20590–0001. You must 

identify the docket number FAA–2009– 

1182/Airspace Docket No. 09–ASW–37, 

at the beginning of your comments. You 

may also submit comments through the 

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

You may review the public docket 

containing the proposal, any comments 

received, and any final disposition in 

person in the Dockets Office between 

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

Friday, except Federal holidays. The 

Docket Office (telephone 1–800–647– 

5527), is on the ground floor of the 

building at the above address. 

FOR FURTHER INFORMATION CONTACT: 

Scott Enander, Central Service Center, 

Operations Support Group, Federal 

Aviation Administration, Southwest 

Region, 2601 Meacham Blvd, Fort 

Worth, TX 76137; telephone: (817) 321– 

7716. 

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 and be submitted in 

triplicate to the address listed above. 

Commenters wishing the FAA to 

acknowledge receipt of their comments 

on this notice must submit with those 

comments a self-addressed, stamped 

postcard on which the following 

statement is made: ‘‘Comments to 

Docket No. FAA–2009–1182/Airspace 

Docket No. 09–ASW–37.’’ The postcard 

will be date/time stamped and returned 

to the commenter. 

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 

ADDRESSES section for 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 office of the 

Central Service Center, 2601 Meacham 

Blvd., Fort Worth, TX 76137. 

Persons interested in being placed on 

a mailing list for future NPRMs should 

contact the FAA’s Office of Rulemaking 

(202) 267–9677, to request a copy of 

Advisory Circular No. 11–2A, Notice of 

Proposed Rulemaking Distribution 

System, which describes the application 

procedure. 

The Proposal 

This action proposes to amend Title 

14, Code of Federal Regulations (14 

CFR), Part 71 by modifying Class E 

airspace extending upward from 700 

feet above the surface for standard 

instrument approach procedures at 

Searcy Municipal Airport, Searcy, AR. 

Airspace reconfiguration is necessary 

due to the decommissioning of the 

Searcy NDB and the cancellation of the 

NDB approach. Geographic coordinates 

would also be adjusted in accordance 

with the FAA’s National Aerospace 

Charting Office. Controlled airspace is 

necessary for the safety and 

management of IFR operations at the 

airport. 

Class E airspace areas are published 

in Paragraph 6005 of FAA Order 

7400.9T, dated August 27, 2009, and 

effective September 15, 2009, which is 

incorporated by reference in 14 CFR 

71.1. The Class E airspace designation 

listed in this document would be 

published subsequently in the Order. 

The FAA has determined that this 

proposed regulation only involves an 

established body of technical 

regulations for which frequent and 

routine amendments are necessary to 

keep them operationally current. It, 

therefore, (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); and (3) does not warrant 

preparation of a Regulatory Evaluation 

as the anticipated impact is so minimal. 

Since this is a routine matter that will 

only affect air traffic procedures and air 

navigation, it is certified that this rule, 

when promulgated, will not have a 


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