Federal Register / Vol. 73, No. 90 / Thursday, May 8, 2008 / Proposed Rules 26045 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2008–0522; Directorate 

Identifier 2008–NM–041–AD] 

RIN 2120–AA64 

Airworthiness Directives; Bombardier 

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). 

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: 

Following in-flight test deployments on 

CL–600–2B19 aircraft, several Air-Driven 

generators (ADGs) failed to come on-line. 

Investigation revealed that, as a result of a 

wiring anomaly that had not been detected 

during ADG manufacture, a short circuit was 

possible between certain internal wires and 

their metallic over-braided shields, which 

could result in the ADG not providing power 

when deployed. * * * 

The unsafe condition is that failure of 

the ADG could lead to loss of several 

functions essential for safe flight. 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 June 9, 2008. 

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. 

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: 

Fabio Buttitta, Aerospace Engineer, 

Systems and Flight Test Branch, ANE–

172, FAA, New York Aircraft 

Certification Office, 1600 Stewart 

Avenue, Suite 410, Westbury, New York 

11590; telephone (516) 228–7303; 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–2008–0522; Directorate Identifier 

2008–NM–041–AD’’ at the beginning of 

your comments. We specifically invite 

comments on the overall regulatory, 

economic, environmental, and energy 

aspects of this proposed AD. We will 

consider all comments received by the 

closing date and may amend this 

proposed AD based on those comments. 

We will post all comments we 

receive, without change, to http:// 

www.regulations.gov, including any 

personal information you provide. We 

will also post a report summarizing each 

substantive verbal contact we receive 

about this proposed AD. 

Discussion 

Transport Canada Civil Aviation 

(TCCA), which is the aviation authority 

for Canada, has issued Canadian 

Airworthiness Directive CF–2008–10, 

dated February 5, 2008 (referred to after 

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

condition for the specified products. 

The MCAI states: 

Following in-flight test deployments on 

CL–600–2B19 aircraft, several Air-Driven 

generators (ADGs) failed to come on-line. 

Investigation revealed that, as a result of a 

wiring anomaly that had not been detected 

during ADG manufacture, a short circuit was 

possible between certain internal wires and 

their metallic over-braided shields, which 

could result in the ADG not providing power 

when deployed. This directive mandates 

checking of the ADG and modification of the 

ADG internal wiring, if required. It also 

prohibits future installation of unmodified 

ADGs. 

The unsafe condition is that failure of 

the ADG could lead to loss of several 

functions essential for safe flight. You 

may obtain further information by 

examining the MCAI in the AD docket. 

Relevant Service Information 

Bombardier has issued Service 

Bulletin 670BA–24–015, Revision A, 

dated December 18, 2006. The actions 

described in this service information are 

intended to correct the unsafe condition 

identified in the MCAI. 

FAA’s Determination and Requirements 

of This Proposed AD 

This product has been approved by 

the aviation authority of another 

country, and is approved for operation 

in the United States. Pursuant to our 

bilateral agreement with the State of 

Design Authority, we have been notified 

of the unsafe condition described in the 

MCAI and service information 

referenced above. We are proposing this 

AD because we evaluated all pertinent 

information and determined an unsafe 

condition exists and is likely to exist or 

develop on other products of the same 

type design. 

Differences Between This AD and the 

MCAI or Service Information 

We have reviewed the MCAI and 

related service information and, in 

general, agree with their substance. But 

we might have found it necessary to use 

different words from those in the MCAI 

to ensure the AD is clear for U.S. 

operators and is enforceable. In making 

these changes, we do not intend to differ 

substantively from the information 

provided in the MCAI and related 

service information. 

We might also have proposed 

different actions in this AD from those 

in the MCAI in order to follow FAA 

policies. Any such differences are 

highlighted in a NOTE within the 

proposed AD. 

Costs of Compliance 

Based on the service information, we 

estimate that this proposed AD would 

affect about 304 products of U.S. 

registry. We also estimate that it would 

take about 5 work hours per product to 

comply with the basic requirements of 

this proposed AD. The average labor 

rate is $80 per work hour. Required 

parts would cost about $0 per product. 

Where the service information lists 

required parts costs that are covered 

under warranty, we have assumed that 

there will be no charge for these costs. 

As we do not control warranty coverage 

for affected parties, some parties may 


rwilkins on PROD1PC63 with PROPOSALS
26046 Federal Register / Vol. 73, No. 90 / Thursday, May 8, 2008 / Proposed Rules 

incur costs higher than estimated here. 

Based on these figures, we estimate the 

cost of the proposed AD on U.S. 

operators to be $121,600, or $400 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, 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. (Formerly Canadair): 

Docket No. FAA–2008–0522; Directorate 

Identifier 2008–NM–041–AD. 

Comments Due Date 

(a) We must receive comments by June 9, 

2008. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to Bombardier Model 

CL–600–2C10 (Regional Jet Series 700, 701, 

& 702) airplanes, having serial numbers (SNs) 

10004 and subsequent; and Model CL–600–

2D15 (Regional Jet Series 705) airplanes and 

Model CL–600–2D24 (Regional Jet Series 

900) airplanes, having SN 15002 and 

subsequent; 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: 

Following in-flight test deployments on 

CL–600–2B19 aircraft, several Air-Driven 

generators (ADGs) failed to come on-line. 

Investigation revealed that, as a result of a 

wiring anomaly that had not been detected 

during ADG manufacture, a short circuit was 

possible between certain internal wires and 

their metallic over-braided shields, which 

could result in the ADG not providing power 

when deployed. This directive mandates 

checking of the ADG and modification of the 

ADG internal wiring, if required. It also 

prohibits future installation of unmodified 

ADGs. 

The unsafe condition is that failure of the 

ADG could lead to loss of several functions 

essential for safe flight. 

Actions and Compliance 

(f) Unless already done, do the following 

actions. 

(1) For airplanes identified in Table 1 of 

this AD: Within 12 months after the effective 

date of this AD, inspect the serial number of 

the installed ADG. A review of airplane 

maintenance records is acceptable in lieu of 

this inspection if the serial number of the 

ADG can be conclusively determined from 

that review. 

TABLE 1.—BOMBARDIER AIRPLANE IDENTIFICATION

Model Serial No. 

CL–600–2C10 airplanes ............................................................................................................................................ 10004 through 10265. 

CL–600–2D15 and CL–600–2D24 airplanes ............................................................................................................. 15002 through 15162. 

(i) If the serial number is not listed in 

paragraph 1.A of Bombardier Service Bulletin 

670BA–24–015, Revision A, dated December 

18, 2006, no further action is required by this 

AD. 

(ii) If the serial number is listed in 

paragraph 1.A of Bombardier Service Bulletin 

670BA–24–015, Revision A, dated December 

18, 2006, before further flight, inspect the 

ADG identification plate and, as applicable, 

do the actions of paragraph (f)(1)(ii)(A) or 

(f)(1)(ii)(B) of this AD. 

(A) If the identification plate is marked 

with the symbol ‘‘24–2’’, no further action is 

required by this AD. 

(B) If the identification plate is not marked 

with the symbol ‘‘24–2’’, modify the ADG 

wiring in accordance with the 

Accomplishment Instructions of the service 

bulletin. 

(2) For all Model CL–600–2C10 airplanes 

having SN 10004 and subsequent, and Model 

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

having SN 15002 and subsequent: As of the 

effective date of this AD, no ADG part 

number 604–90800–19 (761339E), having SN 

0101 through 0132, 0134 through 0167, 0169 

through 0358, 0360 through 0438, 0440 

through 0456, 0458 through 0467, 0469, 0471 

through 0590, 0592 through 0597, 0599 

through 0745, 0747 through 1005, or 1400 

through 1439, may be installed on any 

airplane, unless the identification plate of the 

ADG is identified with the symbol ‘‘24–2’’

(refer to Hamilton Sundstrand Service 

Bulletin ERPS10AG–24–2 for further 

information). 

(3) Actions done before the effective date 

of this AD according to Bombardier Service 

Bulletin 670BA–24–015, dated May 17, 2004, 

are considered acceptable for compliance 

with the corresponding actions specified in 

this AD, provided the ADG has not been 

replaced since those actions were done. 

FAA AD Differences 

Note 1: This AD differs from the MCAI 

and/or service information as follows: No 

differences. 

Other FAA AD Provisions 

(g) The following provisions also apply to 

this AD: 


rwilkins on PROD1PC63 with PROPOSALS
Federal Register / Vol. 73, No. 90 / Thursday, May 8, 2008 / Proposed Rules 26047 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, New York Aircraft 

Certification Office, 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: Fabio Buttitta, 

Aerospace Engineer, Systems and Flight Test 

Branch, ANE–172, FAA, New York Aircraft 

Certification Office, 1600 Stewart Avenue, 

Suite 410, Westbury, New York 11590; 

telephone (516) 228–7303; fax (516) 794–

5531. Before using any approved AMOC on 

any airplane to which the AMOC applies, 

notify your appropriate principal inspector 

(PI) in the FAA Flight Standards District 

Office (FSDO), or lacking a PI, your local 

FSDO. 

(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, 

the Office of Management and Budget (OMB) 

has approved the information collection 

requirements and has assigned OMB Control 

Number 2120–0056. 

Related Information 

(h) Refer to Canadian Airworthiness 

Directive CF–2008–10, dated February 5, 

2008, and Bombardier Service Bulletin 

670BA–24–015, Revision A, dated December 

18, 2006, for related information. 

Issued in Renton, Washington, on April 25, 

2008. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. E8–10219 Filed 5–7–08; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 71 

[Docket No. FAA–2008–0308; Airspace 

Docket No. 08–AEA–19] 

Modification of Class E Airspace; 

Rome, NY 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking. 

SUMMARY: This action proposes to 

modify Class E Airspace at Rome, NY. 

Additional airspace is necessary to 

support the amendment of the current 

Terminal Visual Flight Rule (VFR) 

Radar Service Area (TRSA) and to allow 

for a lower vectoring altitude known as 

the Minimum Vectoring Altitude (MVA) 

for vectoring of both VFR and 

Instrument Flight Rule (IFR) aircraft 

around the Rome, NY area. This action 

would enhance the safety and airspace 

management around the Griffiss Airport 

area. 

DATES: Comments must be received on 

or before June 23, 2008. 

ADDRESSES: Send comments on this rule 

to: U.S. Department of Transportation, 

Docket Operations, West Building 

Ground Floor, Room W12–140, 1200 

New Jersey, SE., Washington, DC 

20590–0001; Telephone: 1–800–647–

5527; Fax: 202–493–2251. You must 

identify the Docket Number FAA–2008–

0308; Airspace Docket No. 08–AEA–19, 

at the beginning of your comments. You 

may also submit and review received 

comments through the Internet at 

http://www.regulations.gov. 

You may review the public docket 

containing the rule, 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 Eastern Service 

Center, Federal Aviation 

Administration, Room 210, 1701 

Columbia Avenue, College Park, Georgia 

30337. 

FOR FURTHER INFORMATION CONTACT: 

Daryl Daniels, Airspace Specialist, 

System Support Group, Eastern Service 

Center, Air Traffic Organization, Federal 

Aviation Administration, P.O. Box 

20636, Atlanta, Georgia 30320; 

telephone (404) 305–5610. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

Interested persons are invited to 

comment on this rule 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. Those 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–2008–0308; Airspace 

Docket No. 08–AEA–19.’’ The postcard 

will be date/time stamped and returned 

to the commenter. All communications 

received before the specified closing 

date for comments will be considered 

before taking action on the proposed 

rule. The proposal contained in this 

notice may be changed in light of the 

comments received. A report 

summarizing each substantive public 

contact with FAA personnel concerned 

with this rulemaking will be filed in the 

docket. 

Availability of NPRMs 

An electronic copy of this document 

may be downloaded from and 

comments submitted through http:// 

www.regulations.gov. Recently 

published rulemaking documents can 

also be accessed through the FAA’s Web 

page at http://www.faa.gov or the 

Federal Register’s Web page at http:// 

www.gpoaccess.gov/fr/index.html. 

Persons interested in being placed on a 

mailing list for future NPRM’s 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 

The FAA is considering an 

amendment to Part 71 of the Code of 

Federal Regulations (14 CFR Part 71) to 

modify Class E airspace at Rome, NY. 

On January 1, 2007, the Oneida County 

Airport, Utica, NY was permanently 

closed and operations moved to the 

Griffiss Airfield. Airspace in this area 

was modified as published in the 

Federal Register on September 7, 2007 

(72 FR 51357). Analysis of operations 

has determined that there is a need for 

additional Class E5 airspace extending 

upward from 700 feet above the surface 

of the Earth to enhance the 

management, safety and efficiency of air 

traffic services in the area. The local 

area Terminal VFR Radar Service Area 

(TRSA) is being revised and there is a 

requirement for the base of the TRSA to 

not be below the associated Class E 

airspace. This modification would 

satisfy that requirement. Class E 

airspace designations for airspace areas 

extending upward from 700 feet or more 

above the surface of the Earth are 

published in Paragraph 6005 of FAA 

Order 7400.9R, signed August 15, 2007, 

and effective September 15, 2007, 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 


rwilkins on PROD1PC63 with PROPOSALS