21530 Federal Register / Vol. 75, No. 79 / Monday, April 26, 2010 / Proposed Rules 

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.’’ 

(h) Doing a general visual inspection, 

installing bushings and bearings, and doing 

all applicable corrective actions is also 

acceptable for compliance with the 

requirements of paragraph (g) of this AD if 

done before the effective date of this AD in 

accordance with the Accomplishment 

Instructions of Boeing Service Bulletin 

MD90–57–016, Revision 1, dated October 26, 

2005. 

(i) Doing a general visual inspection, 

installing bushings and bearings, and doing 

all applicable corrective actions is also 

acceptable for compliance with the 

requirements of paragraph (g) of this AD if 

done before the effective date of this AD in 

accordance with the Accomplishment 

Instructions of Boeing Service Bulletin 

MD90–57–016, dated September 18, 2002, 

provided that before the accumulation of 

30,000 total flight hours, or within 15,000 

flight hours after the effective date of this AD, 

whichever occurs later, electroless nickel 

fittings are installed, and bushings and 

bearings without cadmium plating in the 

bore are installed in accordance with the 

Accomplishment Instructions of any of the 

service bulletins listed in Table 1 of this AD. 

TABLE 1—ACCEPTABLE SERVICE INFORMATION

Document Revision Date 

Boeing Service Bulletin MD90–57–016 .................................................................................................. 0 September 18, 2002. 

Boeing Service Bulletin MD90–57–016 .................................................................................................. 1 October 26, 2005. 

Boeing Service Bulletin MD90–57–016 .................................................................................................. 2 April 28, 2006. 

Alternative Methods of Compliance 

(AMOCs) 

(j)(1) The Manager, Los Angeles Aircraft 

Certification Office (ACO), 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: Roger 

Durbin, Aerospace Engineer, Airframe 

Branch, ANM–120L, FAA, Los Angeles 

Aircraft Certification Office, 3960 Paramount 

Boulevard, Lakewood, California 90712– 

4137; telephone (562) 627–5233; fax (562) 

627–5210. 

(2) To request a different method of 

compliance or a different compliance time 

for this AD, follow the procedures in 14 CFR 

39.19. 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. 

(3) An AMOC that provides an acceptable 

level of safety may be used for any repair 

required by this AD, if it is approved by 

Boeing Commercial Airplanes Organization 

Designation Authorization (ODA) who has 

been authorized by the Manager, Los Angeles 

ACO, to make those findings. For a repair 

method to be approved, the repair must meet 

the certification basis of the airplane and 14 

CFR 25.571, Amendment 45, and the 

approval must specifically refer to this AD. 

Issued in Renton, Washington, on April 16, 

2010. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2010–9572 Filed 4–23–10; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2010–0432; Directorate 

Identifier 2010–NM–001–AD] 

RIN 2120–AA64 

Airworthiness Directives; Bombardier, 

Inc. Model DHC–8–200 and DHC–8–300 

Series 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: During a recent production 

fuel system test, it was found that all 

three flapper valves located in each 

collector tank did not conform to the 

design requirements, due to the fact that 

a valve spring was installed on the 

flapper hinge pin. This valve spring 

should have been removed prior to 

installation of the valves. With the valve 

spring installed, the flapper valve is 

held closed by the valve spring, 

preventing gravity feed. In the event of 

scavenge system failure, the collector 

tank fuel level can no longer be 

maintained, potentially leading to an inflight engine shutdown. 

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 10, 2010. 

ADDRESSES: You may send comments by 

any of the following methods: 

• Federal eRulemaking Portal: Go to 

http://www.regulations.gov. Follow the 

instructions for submitting comments. 

• Fax: (202) 493–2251. 

• Mail: U.S. Department of 

Transportation, Docket Operations, M– 

30, West Building Ground Floor, Room 

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

Washington, DC 20590. 

• Hand Delivery: U.S. Department of 

Transportation, Docket Operations, M– 

30, West Building Ground Floor, Room 

W12–40, 1200 New Jersey Avenue SE., 

Washington, DC, between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. 

For service information identified in 

this proposed AD, contact Bombardier, 

Inc., 400 Coˆte-Vertu Road West, Dorval, 

Que ́bec H4S 1Y9, Canada; telephone 

514–855–5000; fax 514–855–7401; email thd.qseries@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. 

WReier-Aviles on DSKGBLS3C1PROD with PROPOSALS

Federal Register / Vol. 75, No. 79 / Monday, April 26, 2010 / Proposed Rules 21531 

FOR FURTHER INFORMATION CONTACT: Kent 

Fredrickson, Aerospace Engineer, 

Propulsion and Services Branch, ANE– 

173, FAA, New York Aircraft 

Certification Office (ACO), 1600 Stewart 

Avenue, Suite 410, Westbury, New York 

11590; telephone (516) 228–7364; 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–2010–0432; Directorate Identifier 

2010–NM–001–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–2009–40, 

dated November 9, 2009 (referred to 

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

unsafe condition for the specified 

products. The MCAI states: 

During a recent production fuel system 

test, it was found that all three flapper valves 

located in each collector tank did not 

conform to the design requirements, due to 

the fact that a valve spring was installed on 

the flapper hinge pin. This valve spring 

should have been removed prior to 

installation of the valves. 

It was subsequently determined that this 

condition is restricted to the 21 aircraft listed 

in the Applicability section above. 

With the valve spring installed, the flapper 

valve is held closed by the valve spring, 

preventing gravity feed. In the event of 

scavenge system failure, the collector tank 

fuel level can no longer be maintained, 

potentially leading to an in-flight engine 

shutdown. 

In order to ensure adequate fuel transfer to 

the collector tank at all times, this directive 

mandates a one-time [detailed] inspection of 

each of the six flapper valves, removal of the 

valve spring, if installed, and application of 

an identification mark on each inspected 

valve. 

You may obtain further information by 

examining the MCAI in the AD docket. 

Relevant Service Information 

Bombardier has issued Service 

Bulletin 8–28–54, dated April 22, 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 

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 4 products of U.S. registry. 

We also estimate that it would take 

about 30 work-hours 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 

$10,200, or $2,550 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: 

WReier-Aviles on DSKGBLS3C1PROD with PROPOSALS

21532 Federal Register / Vol. 75, No. 79 / Monday, April 26, 2010 / Proposed Rules 

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– 

0432; Directorate Identifier 2010–NM– 

001–AD. 

Comments Due Date 

(a) We must receive comments by June 10, 

2010. 

Affected ADs 

(b) None. 

Applicability 

(c) This AD applies to Bombardier, Inc. 

Model DHC–8–201, –202, –301, –311, and 

–315 airplanes, certificated in any category, 

having serial numbers 644 through 664 

inclusive. 

Subject 

(d) Air Transport Association (ATA) of 

America Code 28: Fuel. 

Reason 

(e) The mandatory continuing 

airworthiness information (MCAI) states: 

During a recent production fuel system 

test, it was found that all three flapper valves 

located in each collector tank did not 

conform to the design requirements, due to 

the fact that a valve spring was installed on 

the flapper hinge pin. This valve spring 

should have been removed prior to 

installation of the valves. 

It was subsequently determined that this 

condition is restricted to the 21 aircraft listed 

in the Applicability section above. 

With the valve spring installed, the flapper 

valve is held closed by the valve spring, 

preventing gravity feed. In the event of 

scavenge system failure, the collector tank 

fuel level can no longer be maintained, 

potentially leading to an in-flight engine 

shutdown. 

In order to ensure adequate fuel transfer to 

the collector tank at all times, this directive 

mandates a one-time [detailed] inspection of 

each of the six flapper valves, removal of the 

valve spring, if installed, and application of 

an identification mark on each inspected 

valve. 

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 1,000 flight hours after the 

effective date of this AD, do a detailed 

inspection of each collector tank flapper 

valve for the presence of a valve spring, in 

accordance with the Accomplishment 

Instructions of Bombardier Service Bulletin 

8–28–54, dated April 22, 2009. If the valve 

spring is not present, before further flight, 

apply an identification mark, in accordance 

with the Accomplishment Instructions of 

Bombardier Service Bulletin 8–28–54, dated 

April 22, 2009. If the valve spring is present, 

before further flight, remove the valve spring 

and apply an identification mark, in 

accordance with the Accomplishment 

Instructions of Bombardier Service Bulletin 

8–28–54, dated April 22, 2009. 

FAA AD Differences 

Note 1: 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 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 

(i) Refer to MCAI Canadian Airworthiness 

Directive CF–2009–40, dated November 9, 

2009; and Bombardier Service Bulletin 8–28– 

54, dated April 22, 2009; for related 

information. 

Issued in Renton, Washington, on April 16, 

2010. 

Ali Bahrami, 

Manager, Transport Airplane Directorate, 

Aircraft Certification Service. 

[FR Doc. 2010–9573 Filed 4–23–10; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 71 

[Docket No. FAA–2009–1011; Airspace 

Docket No. 09–ANM–19] 

Proposed Establishment of Class E 

Airspace; Bryce Canyon, UT 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Supplemental notice of 

proposed rulemaking (SNPRM). 

SUMMARY: This SNPRM elicits 

comments addressing the proposed 

establishment of Class E surface 

airspace at Bryce Canyon Airport, Bryce 

Canyon, UT. In a NPRM published in 

the Federal Register November 18, 

2009, the FAA proposed only to 

establish Class E airspace extending 

upward from 700 feet above the surface, 

to accommodate aircraft using new Area 

Navigation (RNAV) Global Positioning 

System (GPS) Standard Instrument 

Approach Procedures (SIAPs) at the 

airport. This action would increase 

safety within the National Airspace 

System. 

DATES: Comments must be received on 

or before June 10, 2010. 

ADDRESSES: Send comments on this 

proposal to the U.S. Department of 

Transportation, Docket Operations, 

M–30, West Building Ground Floor, 

Room W12–140, 1200 New Jersey 

Avenue, SE., Washington, DC 20590. 

Telephone (202) 366–9826. You must 

identify FAA Docket No. FAA–2009– 

1011; Airspace Docket No. 09–ANM–19, 

at the beginning of your comments. You 

may also submit comments through the 

Internet at 

http://www.regulations.gov. 

FOR FURTHER INFORMATION CONTACT: 

Eldon Taylor, Federal Aviation 

Administration, Operations Support 

Group, Western Service Center, 1601 

Lind Avenue, SW., Renton, WA 98057; 

telephone (425) 203–4537. 

SUPPLEMENTARY INFORMATION: 

History 

On November 18, 2009, the FAA 

published in the Federal Register a 

NPRM to establish Class E airspace, 

extending upward from 700 feet or more 

above the surface, at Bryce Canyon 

Airport, Bryce Canyon, UT (74 FR 

59492). The comment period closed 

January 4, 2010. Two comments were 

received. 

Both commenters recommended 

establishing Class E surface airspace for 

aircraft safety. The FAA found merit in 

WReier-Aviles on DSKGBLS3C1PROD with PROPOSALS