Federal Register / Vol. 75, No. 37 / Thursday, February 25, 2010 / Proposed Rules 8559 

Subject 

(d) Air Transport Association (ATA) of 

America Code 57: Wings. 

Reason 

(e) The mandatory continuing 

airworthiness information (MCAI) states: 

Reassessment of the damage tolerance 

analysis resulted in threshold reduction for 

some Structure Significant Items (SSI) of the 

Maintenance Review Board Report (MRBR) 

Airworthiness Limitations Items (ALI). 

Failure to inspect these structural 

components, according to the new threshold, 

could prevent a timely detection of fatigue 

cracking. These cracks, if not properly 

addressed, could adversely affect the 

structural integrity 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. 

Actions 

(g) Within 90 days after the effective date 

of this AD, do the following actions, as 

applicable. 

(1) For EMBRAER Model EMB–135ER, 

–135KE, –135KL, and –135LR airplanes, and 

Model EMB–145, –145EP, –145ER, –145LR, 

–145MP, and –145MR airplanes: Revise the 

Airworthiness Limitations (ALS) of the 

Instructions for Continued Airworthiness 

(ICA) to incorporate Tasks 54–50–00–230– 

802–A00 and 54–50–00–220–808–A01 

specified in Appendix 2, Airworthiness 

Limitation Requirements, of EMBRAER 

EMB135/EMB145 Maintenance Review 

Board Report MRB–145/1150, Revision 12, 

dated September 19, 2008 (the ‘‘MRBR’’). The 

initial compliance times for the tasks start 

from the applicable threshold specified in 

Appendix 2 of the MRBR, or within 500 

flight cycles after the effective date of this 

AD, whichever occurs later. 

(2) For EMBRAER Model EMB–145EP, 

–145ER, –145LR, –145MR, and –145MP 

airplanes: Revise the ALS of the ICA to 

incorporate Tasks 57–26–00–250–815–A00, 

57–26–00–250–815–A01, 57–26–00–250– 

813–A00, and 57–26–00–250–813–A02, 

specified in Appendix 2, Airworthiness 

Limitation Requirements, of EMBRAER 

EMB135/EMB145 Maintenance Review 

Board Report MRB–145/1150, Revision 12, 

dated September 19, 2008 (‘‘the MRBR’’). The 

initial compliance times for the tasks start 

from the later of the times specified in 

paragraph (g)(2)(i) or (g)(2)(ii) of this AD. 

(i) At the later of the applicable thresholds 

specified in Appendix 2 of the MRBR or 

within 500 flight cycles after the effective 

date of this AD, whichever occurs later. 

(ii) At the applicable time specified in 

Section A2.3.2.3.1, ‘‘Fatigue Threshold 

Reduced,’’ of Appendix 2, Airworthiness 

Limitation Requirements, of the MRBR. 

(3) For all airplanes: Revise the ALS of the 

ICA to incorporate Tasks 57–10–00–250– 

801–A00 and 57–10–00–250–801–A01 

specified in EMBRAER Temporary Revision 

12–1, dated November 27, 2008, to the 

EMBRAER EMB135/EMB145 Maintenance 

Review Board Report MRB–145/1150, 

Revision 12, dated September 19, 2008. The 

initial compliance times for the tasks start at 

the times specified in paragraphs (g)(3)(i) and 

(g)(3)(ii) of this AD, as applicable. 

(i) For Task 57–10–00–250–801–A00: Prior 

to the accumulation of 23,600 total flight 

cycles, or within 500 flight cycles after the 

effective date of this AD, whichever occurs 

later. 

(ii) For Task 57–10–00–250–801–A01: 

Within 24,000 flight cycles after 

accomplishing EMBRAER Service Bulletin 

145–57–0047, dated October 18, 2008, or 

within 500 flight cycles after the effective 

date of this AD, whichever occurs later. 

(h) After accomplishing the actions 

specified in paragraph (g) of this AD, no 

alternative inspections, inspection intervals, 

or airworthiness limitations may be used 

unless the inspections, inspection intervals, 

or airworthiness limitations are approved as 

alternative method of compliance in 

accordance with the procedures specified in 

paragraph (i) of this AD. 

FAA AD Differences 

Note 1: 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, 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. Send 

information to ATTN: Todd Thompson, 

Aerospace Engineer, International Branch, 

ANM–116, Transport Airplane Directorate, 

FAA, 1601 Lind Avenue, SW., Renton, 

Washington 98057–3356; telephone (425) 

227–1175; fax (425) 227–1149. 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 Brazilian Airworthiness 

Directive 2009–05–02, effective June 1, 2009; 

EMBRAER Temporary Revision 12–1, dated 

November 27, 2008, to the EMBRAER 

EMB135/EMB145 Maintenance Review 

Board Report MRB–145/1150, Revision 12, 

dated September 19, 2008; and Tasks 54–50– 

00–230–802–A00 and 54–50–00–220–808– 

A01 specified in Appendix 2, Airworthiness 

Limitation Requirements, of EMBRAER 

EMB135/EMB145 Maintenance Review 

Board Report MRB–145/1150, Revision 12, 

dated September 19, 2008; for related 

information. 

Issued in Renton, Washington, on February 

17, 2010. 

Stephen P. Boyd, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2010–3826 Filed 2–24–10; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2010–0169; Directorate 

Identifier 2009–NM–102–AD] 

RIN 2120–AA64 

Airworthiness Directives; Bombardier, 

Inc. Model CL–600–1A11 (CL–600), CL– 

600–2A12 (CL–601), and CL–600–2B16 

(CL–601–3A, CL–601–3R, and CL–604 

Variants) 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 that would 

supersede an existing AD. 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: 

A specific batch of nose landing gear (NLG) 

and NLG door selector valves, part number 

(P/N) 601R75146–1 (Kaiser Fluid 

Technologies P/N 750006000), may have had 

their end caps incorrectly lock-wired and/or 

incorrectly torqued during assembly. This 

condition can lead to the end cap backing off, 

with consequent damage to a seal and 

internal leakage within the valve. 

Subsequently, if electrical power is 

transferred or removed from the aircraft 

before the NLG safety pin is installed, any 

pressure, including residual pressure, in the 

No. 3 hydraulic system can result in an 

uncommanded NLG retraction. 

The proposed AD would require 

actions that are intended to address the 

unsafe condition described in the MCAI. 


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DATES: We must receive comments on 

this proposed AD by April 12, 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; 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 or 425–227–1152. 

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–2010–0169; Directorate Identifier 

2009–NM–102–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 

On June 25, 2007, we issued AD 

2007–14–02, Amendment 39–15124 (72 

FR 38004, July 12, 2007). That AD 

required actions intended to address an 

unsafe condition on the products listed 

above. 

Since we issued AD 2007–14–02, we 

have received a report that a number of 

nose landing gears (NLG) and door 

selector valves of the NLG may have had 

their end caps incorrectly lock-wired 

and incorrectly torqued during 

assembly. Transport Canada Civil 

Aviation, which is the aviation 

authority for Canada, has issued 

Canadian Airworthiness Directive 

CF–2009–21R1, dated May 20, 2009 

(referred to after this as ‘‘the MCAI’’), to 

correct an unsafe condition for the 

specified products. The MCAI states: 

A specific batch of nose landing gear (NLG) 

and NLG door selector valves, part number 

(P/N) 601R75146–1 (Kaiser Fluid 

Technologies P/N 750006000), may have had 

their end caps incorrectly lock-wired and/or 

incorrectly torqued during assembly. This 

condition can lead to the end cap backing off, 

with consequent damage to a seal and 

internal leakage within the valve. 

Subsequently, if electrical power is 

transferred or removed from the aircraft 

before the NLG safety pin is installed, any 

pressure, including residual pressure, in the 

No. 3 hydraulic system can result in an 

uncommanded NLG retraction. 

Although there have been no such cases 

reported on the Challenger models covered 

by this directive, there have been six cases 

reported on the CRJ (CL600–2B19) aircraft, 

one of which resulted in the collapse of the 

NLG at the departure gate. 

This directive mandates a check of the 

NLG and NLG door selector valves installed 

on all aircraft in the Applicability section 

* * *. Depending on the results; 

replacement, rework and/or additional 

identification of the valves may be required. 

This [MCAI] revision corrects a Service 

Bulletin number in the Corrective Actions 

table. 

Notes: 

1. The check is required whether or not an 

aircraft has previously been checked in 

accordance with AD CF–2006–16R1 (now 

superseded and cancelled by this AD). This 

is necessary since, following the issuance of 

AD CF–2006–16R1, it has been determined 

that the serial number (S/N) range of the 

affected valves requires expansion from the 

previous upper limit of S/N 0767 to S/N 2126 

and the exact location of each of these 

additional valves is unknown. 

2. Valves that have a S/N with suffix ‘‘T’’ 

have been manufactured by Tactair Fluid 

Controls Inc. and do not require any 

corrective action. 

3. Valves manufactured by Kaiser Fluid 

Technologies, P/N 750006000, with S/N 0001 

through 2126, and ink stamp ‘‘SB750006000– 

1’’, have already been checked and reworked 

as necessary and do not require any 

additional corrective action. 

4. The Illustrated Parts Catalog, for each of 

the models covered in the Applicability 

section * * *, gives instructions not to 

install a valve manufactured by Kaiser Fluid 

Technologies, P/N 750006000, with S/N 0001 

through 2126, if the marking ‘‘SB750006000– 

1’’ is not ink stamped on the valve. 

5. CL–600–2B16 (CL–605) aircraft, S/Ns 

5701 and subsequent, are not affected by this 

directive. They were delivered with valves, 

P/N 750006000, that have either a S/N with 

suffix ‘‘T’’ or have the ink stamp marking 

‘‘SB750006000–1’’. 

We have clarified the applicability of 

this AD by removing serial numbers 

5666 through 5699 that were included 

in AD 2007–14–02. Those serial 

numbers do not exist for the affected 

airplane models in this AD. You may 

obtain further information by examining 

the MCAI in the AD docket. 

Relevant Service Information 

Bombardier has issued Service 

Bulletin 600–0721, Revision 03, dated 

February 23, 2009; Service Bulletin 

601–0558, Revision 03, dated February 

23, 2009; and Service Bulletin 604–32– 

021, Revision 04, dated February 23, 

2009. 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 


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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 82 products of U.S. registry. 

The actions that are required by AD 

2007–14–02 and retained in this 

proposed AD take about 1 work-hour 

per product, at an average labor rate of 

$85 per work hour. Based on these 

figures, the estimated cost of the 

currently required actions for U.S. 

operators is $6,970, or $85 per product. 

We estimate that it would take about 

1 work-hour per product to comply with 

the new 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 

$6,970, 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 

removing Amendment 39–15124 (72 FR 

38004, July 12, 2007) and adding the 

following new AD: 

Bombardier, Inc.: Docket No. FAA–2010– 

0169; Directorate Identifier 2009–NM– 

102–AD. 

Comments Due Date 

(a) We must receive comments by April 12, 

2010. 

Affected ADs 

(b) The proposed AD supersedes AD 2007– 

14–02, Amendment 39–15124. 

Applicability 

(c) This AD applies to Bombardier, Inc. 

airplanes, certificated in any category, 

identified in paragraphs (c)(1), (c)(2), and 

(c)(3) of this AD. 

(1) Model CL–600–1A11 (CL–600), serial 

numbers 1004 through 1085 inclusive. 

(2) Model CL–600–2A12 (CL–601), serial 

numbers 3001 through 3066 inclusive. 

(3) Model CL–600–2B16 (CL–601–3A, CL– 

601–3R, and CL–604), serial numbers 5001 

through 5194 inclusive, and serial numbers 

5301 through 5665 inclusive. 

Subject 

(d) Air Transport Association (ATA) of 

America Code 32: Landing Gear. 

Reason 

(e) The mandatory continuing 

airworthiness information (MCAI) states: 

‘‘A specific batch of nose landing gear 

(NLG) and NLG door selector valves, part 

number (P/N) 601R75146–1 (Kaiser Fluid 

Technologies P/N 750006000), may have had 

their end caps incorrectly lock-wired and/or 

incorrectly torqued during assembly. This 

condition can lead to the end cap backing off, 

with consequent damage to a seal and 

internal leakage within the valve. 

Subsequently, if electrical power is 

transferred or removed from the aircraft 

before the NLG safety pin is installed, any 

pressure, including residual pressure, in the 

No. 3 hydraulic system can result in an 

uncommanded NLG retraction. 

‘‘Although there have been no such cases 

reported on the Challenger models covered 

by this directive, there have been six cases 

reported on the CRJ (CL600–2B19) aircraft, 

one of which resulted in the collapse of the 

NLG at the departure gate. 

‘‘This directive mandates a check of the 

NLG and NLG door selector valves installed 

on all aircraft in the Applicability section 

* * *. Depending on the results; 

replacement, rework and/or additional 

identification of the valves may be required. 

‘‘This [MCAI] revision corrects a Service 

Bulletin number in the Corrective Actions 

table. 

‘‘Notes: 

‘‘1. The check is required whether or not 

an aircraft has previously been checked in 

accordance with AD CF–2006–16R1 (now 

superseded and cancelled by this AD). This 

is necessary since, following the issuance of 

AD CF–2006–16R1, it has been determined 

that the serial number (S/N) range of the 

affected valves requires expansion from the 

previous upper limit of S/N 0767 to S/N 2126 

and the exact location of each of these 

additional valves is unknown. 

‘‘2. Valves that have a S/N with suffix ‘T’ 

have been manufactured by Tactair Fluid 

Controls Inc. and do not require any 

corrective action. 

‘‘3. Valves manufactured by Kaiser Fluid 

Technologies, P/N 750006000, with S/N 0001 

through 2126, and ink stamp ‘SB750006000– 

1’, have already been checked and reworked 

as necessary and do not require any 

additional corrective action. 

‘‘4. The Illustrated Parts Catalog, for each 

of the models covered in the Applicability 

section * * *, gives instructions not to 

install a valve manufactured by Kaiser Fluid 

Technologies, P/N 750006000, with S/N 0001 

through 2126, if the marking ‘SB750006000– 

1’ is not ink stamped on the valve. 

‘‘5. CL–600–2B16 (CL–605) aircraft, S/Ns 

5701 and subsequent, are not affected by this 


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directive. They were delivered with valves, 

P/N 750006000, that have either a S/N with 

suffix ‘T’ or have the ink stamp marking 

‘SB750006000–1’.’’ 

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. 

Restatement of Requirements of AD 2007– 

14–02 With New Service Information but No 

Changes to Actions 

Inspection and Corrective Action 

(g) For airplanes having serial numbers (S/ 

Ns) as identified in the service bulletins 

specified in Table 1 of this AD, as applicable: 

Within 500 flight hours or 12 months after 

August 16, 2007 (the effective date AD 2007– 

14–02), whichever occurs first, inspect to 

determine the manufacturer part numbers (P/ 

Ns) and serial numbers of the selector valves 

of the nose landing gear (NLG) and nose gear 

door. A review of airplane maintenance 

records is acceptable in lieu of this 

inspection if the serial numbers of the 

selector valves can be conclusively 

determined from that review. For any subject 

selector valve having Tactair Fluid Controls 

P/N 750006000 and a S/N from 0001 through 

0767 inclusive, before further flight, do 

related investigative (including a general 

visual inspection for proper installation of 

the lock wire of the end cap) and corrective 

actions; in accordance with the applicable 

service bulletin identified in Table 1 of this 

AD. After the effective date of this AD, use 

only the applicable service bulletin specified 

in Table 2 of this AD. 

TABLE 1—BOMBARDIER SERVICE

Model— Bombardier Service 

Bulletin— Revision— Dated— 

CL–600–1A11 (CL–600) airplanes ...................................................................... 600–0721 01 February 20, 2006. 

CL–600–2A12 (CL–601), and CL–600–2B16 (CL–601–3A and CL–601–3R) 

airplanes.

601–0558 01 February 20, 2006. 

CL–600–2B16 (CL–604) airplanes ...................................................................... 604–32–021 02 February 20, 2007. 

TABLE 2—BOMBARDIER SERVICE BULLETINS FOR PARAGRAPH (g) OF THIS AD 

Model— Bombardier Service 

Bulletin— Revision— Dated— 

CL–600–1A11 (CL–600) airplanes ...................................................................... 600–0721 03 February 23, 2009. 

CL–600–2A12 (CL–601), and CL–600–2B16 (CL–601–3A and CL–601–3R) 

airplanes.

601–0558 03 February 23, 2009. 

CL–600–2B16 (CL–604) airplanes ...................................................................... 604–32–021 04 February 23, 2009. 

Note 1: Operators should be aware that 

selector valves having Bombardier P/N 

601R75146–1 may be supplied by different 

manufacturers and have different 

manufacturer part numbers. Only airplanes 

having selector valves manufactured by 

Tactair Fluid Controls, having P/N 

750006000, are subject to the investigative 

and corrective actions specified in paragraph 

(g) of this AD. 

Note 2: For the purposes of this AD, a 

general visual inspection is: ‘‘A visual 

examination of an interior or exterior area, 

installation, or assembly to detect obvious 

damage, failure, or irregularity. This level of 

inspection is made from within touching 

distance unless otherwise specified. A mirror 

may be necessary to ensure visual access to 

all surfaces in the inspection area. This level 

of inspection is made under normally 

available lighting conditions such as 

daylight, hangar lighting, flashlight, or 

droplight and may require removal or 

opening of access panels or doors. Stands, 

ladders, or platforms may be required to gain 

proximity to the area being checked.’’ 

Note 3: The service bulletins identified in 

Table 1 of this AD refer to Tactair Fluid 

Controls Service Bulletin SB750006000–1, 

Revision A, dated September 6, 2005, as an 

additional source of service information for 

doing the related investigative and corrective 

actions required by this AD. 

Actions Accomplished According to Previous 

Issue of Service Bulletin 

(h) Actions accomplished before August 

16, 2007, in accordance with Bombardier 

Service Bulletin 604–32–021, Revision 01, 

dated February 20, 2006 (for Model CL–600– 

2B16 (CL–605) airplanes), are considered 

acceptable for compliance with the 

corresponding actions specified in paragraph 

(g) of this AD. 

New Requirements of This AD 

Actions 

(i) Unless already done, do the following 

actions. 

(1) Within 250 flight hours or within 6 

months after the effective date of this AD, 

whichever occurs first: Do an inspection of 

the selector valve of the NLG and the door 

selector valve of the NLG to determine if 

P/N 601R75146–1 (Kaiser Fluid Technologies 

P/N 750006000) is installed, in accordance 

with the Accomplishment Instructions of the 

applicable service bulletin listed in Table 3 

of this AD. Doing the inspection required by 

this paragraph terminates the inspection 

required by paragraph (g) of this AD. 

TABLE 3—BOMBARDIER SERVICE BULLETINS FOR ACTIONS IN PARAGRAPH (h) OF THIS AD 

Model— 

Bombardier 

Service 

Bulletin— 

Revision— Date— 

CL–600–1A11 (CL–600) airplanes ...................................................................... 600–0721 03 February 23, 2009. 

CL–600–2A12 (CL–601), and CL–600–2B16 (CL–601–3A and CL–601–3R) 

airplanes.

601–0558 03 February 23, 2009. 

CL–600–2B16 (CL–604) airplanes ...................................................................... 604–32–021 04 February 23, 2009. 

(2) If, during any inspection required by 

paragraph (i)(1) of this AD, any selector valve 

having P/N 601R75146–1 (Kaiser Fluid 

Technologies P/N 750006000) and having a 

S/N from 0001 through 2126 inclusive 

without a suffix ‘‘T’’ is found, and the valve 

is not ink-stamped with the marking 

‘‘SB750006000–1’’: Before further flight, do a 

general visual inspection for proper 


sroberts on DSKD5P82C1PROD with PROPOSALS
Federal Register / Vol. 75, No. 37 / Thursday, February 25, 2010 / Proposed Rules 8563 

installation of the lock wire of the end cap, 

and replace it with a serviceable selector 

valve as applicable, in accordance with the 

Accomplishment Instructions in the 

applicable service bulletin listed in Table 3 

of this AD. 

(3) Doing the actions before the effective 

date of this AD in accordance with the 

applicable service bulletin listed in Table 4 

of this AD is acceptable for compliance with 

the corresponding actions specified in this 

AD. 

TABLE 4—CREDIT SERVICE BULLETINS

Service Bulletin Revision 

level Date 

Bombardier Service Bulletin 600–0721 ....................................................................................................... 02 June 16, 2008. 

Bombardier Service Bulletin 601–0558 ....................................................................................................... 02 June 16, 2008. 

Bombardier Service Bulletin 604–32–021 ................................................................................................... 03 June 16, 2008. 

FAA AD Differences 

Note 4: This AD differs from the MCAI 

and/or service information as follows: No 

differences. 

Other FAA AD Provisions 

(j) 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. 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 

(k) Refer to MCAI Canadian Airworthiness 

Directive CF–2009–21R1, dated May 20, 

2009; Bombardier Service Bulletin 600–0721, 

Revision 03, dated February 23, 2009; 

Bombardier Service Bulletin 601–0558, 

Revision 03, dated February 23, 2009; and 

Bombardier Service Bulletin 604–32–021, 

Revision 04, dated February 23, 2009; for 

related information. 

Issued in Renton, Washington, on February 

17, 2010. 

Stephen P. Boyd, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2010–3827 Filed 2–24–10; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF HOMELAND 

SECURITY 

Coast Guard 

33 CFR Part 165 

[Docket No. USCG–2010–0062] 

RIN 1625–AA00 

Safety Zone; Fleet Week Maritime 

Festival, Pier 66, Elliott Bay, Seattle, 

WA 

AGENCY: Coast Guard, DHS. 

ACTION: Notice of proposed rulemaking. 

SUMMARY: The U.S. Coast Guard is 

proposing to establish a permanent 

safety zone on all waters extending 100 

yards from Pier 66, Elliot Bay, WA to 

ensure adequate safety of the boating 

public during multiple naval and aerial 

spectator events associated with the 

annual Fleet Week Maritime Festival. 

Entry into, transit through, mooring, or 

anchoring within these zones is 

prohibited unless authorized by the 

Captain of the Port, Puget Sound or 

Designated Representative. 

DATES: Comments and related material 

must be received by the Coast Guard on 

or before May 26, 2010. Requests for 

public meetings must be received by the 

Coast Guard on or before March 29, 

2010. 

ADDRESSES: You may submit comments 

identified by docket number USCG– 

2010–0062 using any one of the 

following methods: 

(1) Federal eRulemaking Portal: 

http://www.regulations.gov. 

(2) Fax: 202–493–2251. 

(3) Mail: Docket Management Facility 

(M–30), U.S. Department of 

Transportation, West Building Ground 

Floor, Room W12–140, 1200 New Jersey 

Avenue, SE., Washington, DC 20590– 

0001. 

(4) Hand delivery: Same as mail 

address above, between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. The telephone number 

is 202–366–9329. 

To avoid duplication, please use only 

one of these four methods. See the 

‘‘Public Participation and Request for 

Comments’’ portion of the 

SUPPLEMENTARY INFORMATION section 

below for instructions on submitting 

comments. 

FOR FURTHER INFORMATION CONTACT: If 

you have questions on this temporary 

rule, call or e-mail Ensign Ashley M. 

Wanzer, USCG Sector Seattle 

Waterways Management Division, Coast 

Guard; telephone 206–217–6175, e-mail 

SectorSeattleWWM@uscg.mil. If you 

have questions on viewing the docket, 

call Renee V. Wright, Program Manager, 

Docket Operations, telephone 202–366– 

9826. 

SUPPLEMENTARY INFORMATION: 

Public Participation and Request for 

Comments 

We encourage you to participate in 

this rulemaking by submitting 

comments and related materials. All 

comments received will be posted 

without change to http:// 

www.regulations.gov and will include 

any personal information you have 

provided. 

Submitting comments 

If you submit a comment, please 

include the docket number for this 

rulemaking (USCG–2010–0062), 

indicate the specific section of this 

document to which each comment 

applies, and provide a reason for each 

suggestion or recommendation. You 

may submit your comments and 

material online (via http:// 

www.regulations.gov) or by fax, mail, or 

hand delivery, but please use only one 

of these means. If you submit a 

comment online via 


sroberts on DSKD5P82C1PROD with PROPOSALS