Federal Register / Vol. 75, No. 117 / Friday, June 18, 2010 / Proposed Rules 34657 

period to allow additional time for the 

preparation of their comments. DOE has 

determined that a brief extension of the 

public comment period is appropriate to 

allow stakeholders additional time to 

submit comments to DOE for 

consideration as the proposed rule is 

developed. DOE will consider any 

comments received by July 9, 2010 and 

deems any comments received between 

publication of the Federal Register 

notice and July 9, 2010 to be timely 

submitted. 

Further Information on Submitting 

Comments 

Under 10 CFR 1004.11, any person 

submitting information that he or she 

believes to be confidential and exempt 

by law from public disclosure should 

submit two copies: one copy of the 

document including all the information 

believed to be confidential, and one 

copy of the document with the 

information believed to be confidential 

deleted. DOE will make its own 

determination about the confidential 

status of the information and treat it 

according to its determination. 

Factors of interest to DOE when 

evaluating requests to treat submitted 

information as confidential include (1) a 

description of the items, (2) whether 

and why such items are customarily 

treated as confidential within the 

industry, (3) whether the information is 

generally known by or available from 

other sources, (4) whether the 

information has previously been made 

available to others without obligation 

concerning its confidentiality, (5) an 

explanation of the competitive injury to 

the submitting person which would 

result from public disclosure, (6) when 

such information might lose its 

confidential character due to the 

passage of time, and (7) why disclosure 

of the information would be contrary to 

the public interest. 

Issued in Washington, DC, on June 11, 

2010. 

Cathy Zoi, 

Assistant Secretary, Energy Efficiency and 

Renewable Energy. 

[FR Doc. 2010–14755 Filed 6–17–10; 8:45 am] 

BILLING CODE 6450–01–P 

DEPARTMENT OF ENERGY 

10 CFR Parts 433 and 435 

[Docket No. EE–RM/STD–02–112] 

RIN 1904–AC13 

Energy Efficiency and Sustainable 

Design Standards for New Federal 

Buildings 

AGENCY: Office of Energy Efficiency and 

Renewable Energy, Department of 

Energy. 

ACTION: Proposed rulemaking; extension 

of comment period. 

SUMMARY: The U.S. Department of 

Energy (DOE) published a document in 

the Federal Register on May 28, 2010, 

concerning a public meeting and 

availability of the notice of proposed 

rulemaking (NOPR) regarding the 

application of sustainable design 

principals with respect to the siting, 

design, and construction of new Federal 

buildings. This notice extends the 

comment period to August 12, 2010. 

DATES: DOE will hold a public meeting 

in Washington, DC, on Wednesday, July 

28, 2010, beginning at 9 a.m. DOE must 

receive requests to speak at the meeting 

before 4 p.m., Wednesday, July 14, 

2010. DOE must receive a signed 

original and an electronic copy of 

statements to be given at the public 

meeting before 4 p.m., Wednesday, July 

21, 2010. Written comments on the 

NOPR are welcome, especially 

following the public meeting, and 

should be submitted by Thursday, 

August 12, 2010. 

ADDRESSES: The public meeting will be 

held at the U.S. Department of Energy, 

Forrestal Building, Room 8E–089, 1000 

Independence Avenue, SW., 

Washington, DC 20585–0121. To attend 

the public meeting, please notify Ms. 

Brenda Edwards at (202) 586–2945. 

Please note that foreign nationals 

participating in the public meeting are 

subject to advance security screening 

procedures, requiring a 30-day advance 

notice. If you are a foreign national and 

wish to participate in the public 

meeting, please inform DOE as soon as 

possible by contacting Ms. Brenda 

Edwards at (202) 586–2945 so that the 

necessary procedures can be completed. 

FOR FURTHER INFORMATION CONTACT: 

Cyrus Nasseri, U.S. Department of 

Energy, Office of Energy Efficiency and 

Renewable Energy, Federal Energy 

Management Program, EE–2L, 1000 

Independence Avenue, SW., 

Washington, DC 20585–0121, (202) 586– 

9138, e-mail: Cyrus.Nasseri@ee.doe.gov, 

or Ami Grace-Tardy, U.S. Department of 

Energy, Office of the General Counsel, 

Forrestal Building, GC–71, 1000 

Independence Avenue, SW., 

Washington, DC 20585, (202) 586–5709, 

e-mail: Ami.Grace-Tardy@hq.doe.gov. 

SUPPLEMENTARY INFORMATION: DOE 

published a document in the Federal 

Register on May 28, 2010 (75 FR 29933), 

concerning a public meeting and 

availability of the NOPR regarding the 

application of sustainable design 

principals with respect to the siting, 

design, and construction of new Federal 

buildings. This document extends the 

comment period by 15 days to August 

12, 2010. 

The purpose of the July 28, 2010, 

public meeting is to discuss the NOPR 

regarding the application of sustainable 

design principals with respect to the 

siting, design, and construction of new 

Federal buildings. For additional 

information regarding the NOPR and the 

public meeting, including detailed 

instructions for the submission of 

comments and access to the docket to 

read background documents or 

comments received, please refer to the 

May 28, 2010 notice (75 FR 29933). The 

Department welcomes all interested 

parties, regardless of whether they 

participate in the public meeting, to 

submit written comments regarding 

matters addressed in the NOPR, as well 

as any other related issues, by August 

12, 2010. 

Issued in Washington, DC on June 11, 

2010. 

Cathy Zoi, 

Assistant Secretary, Energy Efficiency and 

Renewable Energy. 

[FR Doc. 2010–14752 Filed 6–17–10; 8:45 am] 

BILLING CODE 6450–01–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2010–0550; Directorate 

Identifier 2009–NM–124–AD] 

RIN 2120–AA64 

Airworthiness Directives; Bombardier, 

Inc. Model CL–600–2B19 (Regional Jet 

Series 100 & 440) Airplanes; 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 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 


hsrobinson on DSK69SOYB1PROD with PROPOSALS-1
34658 Federal Register / Vol. 75, No. 117 / Friday, June 18, 2010 / Proposed Rules 

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: Two cases of a crack on a 

‘‘dry’’ ADG [air driven generator] 

(Hamilton Sundstrand part number in 

the 761339 series), in the aft area of the 

strut and generator housing assembly, 

have been reported on CL–600–2B19 

aircraft. The same part is also installed 

on CL–600–2C10, –2D15 and –2D24 

aircraft. Investigation determined that 

the crack was in an area of the strut 

where the wall thickness of the casting 

was below specification, due to a 

manufacturing anomaly in a specific 

batch of ADGs. Structural failure and 

departure of the ADG during 

deployment could possibly result in 

damage to the aircraft structure. If 

deployment was activated by a dual 

engine shutdown, ADG structural 

failure would also result in loss of 

hydraulics for the flight controls. 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 August 2, 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. 

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: 

Craig Yates, 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– 

7355; 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–2010–0550; Directorate Identifier 

2009–NM–124–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, 

which is the aviation authority for 

Canada, has issued Canadian 

Airworthiness Directive CF–2009–27, 

dated June 8, 2009 (referred to after this 

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

condition for the specified products. 

The MCAI states: 

Two cases of a crack on a ‘‘dry’’ ADG [air 

driven generator] (Hamilton Sundstrand part 

number in the 761339 series), in the aft area 

of the strut and generator housing assembly, 

have been reported on CL–600–2B19 aircraft. 

The same part is also installed on CL–600– 

2C10, –2D15 and –2D24 aircraft. 

Investigation determined that the crack was 

in an area of the strut where the wall 

thickness of the casting was below 

specification, due to a manufacturing 

anomaly in a specific batch of ADGs. 

Structural failure and departure of the ADG 

during deployment could possibly result in 

damage to the aircraft structure. If 

deployment was activated by a dual engine 

shutdown, ADG structural failure would also 

result in loss of hydraulics for the flight 

controls. 

This directive gives instructions to check 

the part number of the installed ADG and, for 

ADGs with a part number in the 761339 

series, the serial numbers of the ADG and 

strut and generator housing assembly are also 

to be checked. If these serial numbers are 

within specified ranges ***, a one-time 

fluorescent penetrant inspection of the ADG 

strut is required [and replacement of the ADG 

if necessary]. 

Note: For ADGs with serial numbers in the 

*** specified ranges, subsequent fluorescent 

penetrant inspections are required after each 

scheduled in-flight or on-ground functional 

check of the ADG and also after each 

unscheduled in-flight ADG deployment. 

These inspection requirements are not 

mandated in this directive but are specified 

in the approved maintenance program. 

You may obtain further information by 

examining the MCAI in the AD docket. 

Relevant Service Information 

Bombardier has issued Alert Service 

Bulletin A601R–24–120, Revision C, 

dated April 20, 2009; and Alert Service 

Bulletin A670BA–24–020, Revision C, 

dated April 20, 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 

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 


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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 1,073 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 

$91,205, 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– 

0550; Directorate Identifier 2009–NM– 

124–AD. 

Comments Due Date 

(a) We must receive comments by August 

2, 2010. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to Bombardier, Inc. 

Model CL–600–2B19 (Regional Jet Series 100 

& 440) airplanes, serial numbers 7305 

through 8051 inclusive; Model CL–600–2C10 

(Regional Jet Series 700, 701, & 702) 

airplanes, serial numbers 10003 through 

10260 inclusive; and Model CL–600–2D15 

(Regional Jet Series 705) airplanes and Model 

CL–600–2D24 (Regional Jet Series 900) 

airplanes, serial numbers 15001 through 

15106 inclusive; certificated in any category. 

Subject 

(d) Air Transport Association (ATA) of 

America Code 24: Electrical Power. 

Reason 

(e) The mandatory continuing 

airworthiness information (MCAI) states: 

Two cases of a crack on a ‘‘dry’’ ADG [air 

driven generator] (Hamilton Sundstrand part 

number in the 761339 series), in the aft area 

of the strut and generator housing assembly, 

have been reported on CL–600–2B19 aircraft. 

The same part is also installed on CL–600– 

2C10, –2D15 and –2D24 aircraft. 

Investigation determined that the crack was 

in an area of the strut where the wall 

thickness of the casting was below 

specification, due to a manufacturing 

anomaly in a specific batch of ADGs. 

Structural failure and departure of the ADG 

during deployment could possibly result in 

damage to the aircraft structure. If 

deployment was activated by a dual engine 

shutdown, ADG structural failure would also 

result in loss of hydraulics for the flight 

controls. 

This directive gives instructions to check 

the part number of the installed ADG and, for 

ADGs with a part number in the 761339 

series, the serial numbers of the ADG and 

strut and generator housing assembly are also 

to be checked. If these serial numbers are 

within specified ranges ***, a one-time 

fluorescent penetrant inspection of the ADG 

strut is required [and replacement of the ADG 

if necessary]. 

Note: For ADGs with serial numbers in the 

* * * specified ranges, subsequent 

fluorescent penetrant inspections are 

required after each scheduled in-flight or onground functional check of the ADG and also 

after each unscheduled in-flight ADG 

deployment. These inspection requirements 

are not mandated in this directive but are 

specified in the approved maintenance 

program. 

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) Do the following actions. 

(1) Within 1,000 flight hours after the 

effective date of this AD or before the first 

scheduled ADG functional test after the 

effective date of this AD, whichever occurs 

first, inspect to determine the part number of 

the installed ADG. A review of the airplane 

maintenance records is acceptable in lieu of 

this inspection if the part number can be 

conclusively determined from that review. 

(i) If a Hamilton Sundstrand ADG having 

part number 1711405 is installed, the strut 

thickness is within specification and no 

further action is required by this AD. 

(ii) If a Hamilton Sundstrand ADG having 

a part number in the 761339 series is 

installed, within 1,000 flight hours after the 

effective date of this AD or before the first 

scheduled ADG functional test after the 

effective date of this AD, whichever occurs 

first, inspect to determine the serial number 

of the ADG. A review of the airplane 

maintenance records is acceptable in lieu of 

this inspection if the serial number can be 

conclusively determined from that review. 

(A) If the serial number of the ADG is 2000 

or higher, the strut wall thickness is within 

specification and no further action is 

required by this AD. 

(B) If the serial number of the ADG is in 

the range 0101 through 1999 and symbol 

‘‘24–3’’ is marked in the serial number block 

of the identification plate, the strut wall 

thickness is within specification, no further 

action is required by this AD. 

(C) If the serial number of the ADG is in 

the range 0101 through 1999 and the symbol 


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‘‘24–3’’ is not marked in the serial block of the 

identification plate, within 1,000 flight hours 

after the effective date of this AD or before 

the first scheduled ADG functional test after 

the effective date of this AD, whichever 

occurs first, inspect to determine the serial 

number of the strut and generator housing 

assembly. A review of the airplane 

maintenance records is acceptable in lieu of 

this inspection if the serial number can be 

conclusively determined from that review. 

(1) If the serial number of the strut and 

generator housing assembly is in the range 

0001 through 2503, do a fluorescent 

penetrant inspection in accordance with 

paragraph (g)(2) of this AD at the times 

specified in paragraph (g)(2) of this AD. 

(2) If the serial number of the strut and 

generator housing assembly is 2504 or higher, 

the strut wall thickness is within 

specification and no further action is 

required by this AD. 

(3) If the serial number of the strut and 

generator housing assembly is not inspected 

or it is not possible to determine the serial 

number, do a fluorescent penetrant 

inspection in accordance with paragraph 

(g)(2) of this AD at the times specified in 

paragraph (g)(2) of this AD. 

(2) For ADGs having a strut and generator 

assembly identified in paragraph 

(g)(1)(ii)(C)(1) or (g)(1)(ii)(C)(3) of this AD: 

Within 1,000 flight hours after the effective 

date of this AD or before the first scheduled 

ADG functional test after the effective date of 

this AD, whichever occurs first, do a 

fluorescent penetrant inspection for cracking 

of the ADG strut, and if any crack is found, 

before further flight, replace the ADG with a 

serviceable ADG, in accordance with the 

Accomplishment Instructions of Bombardier 

Alert Service Bulletin A601R–24–120, 

Revision C, dated April 20, 2009 (for Model 

CL–600–2B19 airplanes); or Bombardier Alert 

Service Bulletin A670BA–24–020, Revision 

C, dated April 20, 2009 (for Model CL–600– 

2C10, CL–600–2D15, and CL–600–2D24 

airplanes). 

(3) Fluorescent penetrant inspections 

accomplished before the effective date of this 

AD in accordance with any applicable 

service bulletin specified in Table 1 of this 

AD are considered acceptable for compliance 

with the corresponding fluorescent penetrant 

inspection specified in this AD. 

TABLE 1—CREDIT SERVICE BULLETINS

Bombardier, Inc. Model— Service Bulletin— Revision— Dated— 

CL–600–2B19 airplanes ........................................... Bombardier Alert Service Bulletin A601R–24–120 Original .... April 20, 2005. 

CL–600–2B19 airplanes ........................................... Bombardier Alert Service Bulletin A601R–24–120 A .............. December 1, 2005. 

CL–600–2B19 airplanes ........................................... Bombardier Alert Service Bulletin A601R–24–120 B .............. December 7, 2006. 

CL–600–2C10 airplanes and CL–600–2D24 airplanes.Bombardier Alert Service Bulletin A670BA–24– 

020.

Original .... April 20, 2005. 

CL–600–2C10 airplanes; and CL–600–2D15 and 

CL–600–2D24 airplanes.

Bombardier Alert Service Bulletin A670BA–24– 

020.

A .............. May 17, 2005. 

CL–600–2C10 airplanes; and CL–600–2D15 and 

CL–600–2D24 airplanes.

Bombardier Alert Service Bulletin A670BA–24– 

020.

B .............. December 7, 2006. 

CL–600–2B19 airplanes; CL–600–2C10 airplanes; 

and CL–600–2D15 and CL–600–2D24 airplanes.

Hamilton Sundstrand Service Bulletin 

ERPS10AG–24–3.

Original .... April 14, 2005. 

CL–600–2B19 airplanes; CL–600–2C10 airplanes; 

and CL–600–2D15 and CL–600–2D24 airplanes.

Hamilton Sundstrand Service Bulletin 

ERPS10AG–24–3.

1 .............. April 19, 2005. 

CL–600–2B19 airplanes; CL–600–2C10 airplanes; 

and CL–600–2D15 and CL–600–2D24 airplanes.

Hamilton Sundstrand Service Bulletin 

ERPS10AG–24–3.

2 .............. November 14, 2006. 

Bombardier, Inc. CL–600–2B19 airplanes; CL– 

600–2C10 airplanes; and CL–600–2D15 and 

CL–600–2D24 airplanes.

Hamilton Sundstrand Service Bulletin 

ERPS10AG–24–3.

3 ............... March 12, 2009. 

Note 1: For additional guidance on the 

ADGs specified in paragraphs 

(g)(1)(ii)(C)(1)and (g)(1)(ii)(C)(3) of this AD 

and the repetitive fluorescent penetrant 

inspections specified as part of the periodic 

ADG functional check procedure, refer to the 

applicable tasks identified in Table 2 of this 

AD. These tasks can be found in Part 2 

–Airworthiness Requirements, Appendix A— 

Certification Maintenance Requirements 

(CMR) of the Bombardier (Canadair) Regional 

Jet Maintenance Requirements Manual, and 

the Bombardier CRJ Series Regional Jet 

Aircraft Maintenance Manual (AMM). 

TABLE 2—GUIDANCE FOR THE PERIODIC ADG FUNCTIONAL CHECK PROCEDURE

Bombardier, Inc. Model— Task Number (No.)— 

CL–600–2B19 airplanes ................. CMR Task No. C24–20–129–01 and AMM Task No: 24–23–01–720–803. 

CL–600–2C10 airplanes ................. CMR Task No. 24–23–00–102 and AMM Task No. 24–23–01–720–802. 

CL–600–2D15 and CL–600–2D24 

airplanes.

CMR Task No. 24–23–00–102 and AMM Task No. 24–23–01–720–802. 

Note 2: For additional guidance on the 

ADGs specified in paragraph (g)(1)(ii)(C)(1), 

and the fluorescent penetrant inspection 

necessary following each future unscheduled 

in-flight ADG deployment, refer to following 

task specified in Table 3 of this AD. 

TABLE 3—GUIDANCE FOR INSPECTION FOLLOWING UNSCHEDULED IN-FLIGHT ADG DEPLOYMENT

Bombardier, Inc. Model— AMM Task No.— 

CL–600–2B19 airplanes, serial numbers 7305 through 8051 inclusive ............................................................................. 05–51–19–210–801 

CL–600–2C10 airplanes, serial numbers 10003 through 10260 inclusive ......................................................................... 05–51–19–210–801 

CL–600–2D15 and CL–600–2D24 airplanes, serial numbers 15001 through 15106 inclusive .......................................... 05–51–19–210–801 


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Note 3: In Hamilton Sundstrand Service 

Bulletin ERPS10AG–24–3, the fluorescent 

penetrant inspection is referred to as a 

‘‘Penetrant Check.’’ 

FAA AD Differences 

Note 4: This AD differs from the MCAI 

and/or service information as follows: No 

differences. 

Other FAA AD Provisions 

(h) 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 FAAapproved 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. 

(4) Special Flight Permits: Special flight 

permits, as described in section 21.197 and 

section 21.199 of the Federal Aviation 

Regulations (14 CFR 21.197 and 21.199), are 

not allowed. 

Related Information 

(i) Refer to MCAI Canadian Airworthiness 

Directive CF–2009–27, dated June 8, 2009; 

Bombardier Alert Service Bulletin A601R– 

24–120, Revision C, dated April 20, 2009; 

and Bombardier Alert Service Bulletin 

A670BA–24–020, Revision C, dated April 20, 

2009; for related information. 

Issued in Renton, Washington, on June 10, 

2010. 

Jeffrey E. Duven, 

Acting Manager, Transport Airplane 

Directorate, Aircraft Certification Service. 

[FR Doc. 2010–14769 Filed 6–17–10; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2010–0549; Directorate 

Identifier 2010–NM–109–AD] 

RIN 2120–AA64 

Airworthiness Directives; McDonnell 

Douglas Corporation Model DC–9–81 

(MD–81), DC–9–82 (MD–82), DC–9–83 

(MD–83), DC–9–87 (MD–87), and MD–88 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: We propose to adopt a new 

airworthiness directive (AD) for certain 

Model DC–9–81 (MD–81), DC–9–82 

(MD–82), DC–9–83 (MD–83), DC–9–87 

(MD–87), and MD–88 airplanes. This 

proposed AD would require installing 

fuel level float and pressure switch inline fuses on the wing forward spars and 

forward and aft auxiliary fuel tanks, 

depending on the airplane 

configuration. This proposed AD results 

from fuel system reviews conducted by 

the manufacturer. We are proposing this 

AD to prevent the potential of ignition 

sources inside fuel tanks, which, in 

combination with flammable fuel 

vapors, could result in fuel tank 

explosions and consequent loss of the 

airplane. 

DATES: We must receive comments on 

this proposed AD by August 2, 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 

W12–140, 1200 New Jersey Avenue, SE., 

Washington, DC 20590, between 9 a.m. 

and 5 p.m., Monday through Friday, 

except Federal holidays. 

For service information identified in 

this proposed AD, contact Boeing 

Commercial Airplanes, Attention: Data 

& Services Management, 3855 

Lakewood Boulevard, MC D800–0019, 

Long Beach, California 90846–0001; 

telephone 206–544–5000, extension 2; 

fax 206–766–5683; e-mail 

dse.boecom@boeing.com; Internet 

https://www.myboeingfleet.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 Management Facility 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 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: 

Samuel Lee, Aerospace Engineer, 

Propulsion Branch, ANM–140L, FAA, 

Los Angeles Aircraft Certification Office 

(ACO), 3960 Paramount Boulevard, 

Lakewood, California 90712–4137; 

telephone 562–627–5262; fax 562–627– 

5210. 

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–2010–0549; Directorate Identifier 

2010–NM–109–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 because of 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 

The FAA has examined the 

underlying safety issues involved in fuel 

tank explosions on several large 

transport airplanes, including the 

adequacy of existing regulations, the 

service history of airplanes subject to 

those regulations, and existing 

maintenance practices for fuel tank 

systems. As a result of those findings, 

we issued a regulation titled ‘‘Transport 


hsrobinson on DSK69SOYB1PROD with PROPOSALS-1