Airworthiness Directives; Bombardier, Inc. Model DHC-8-400 Series Airplanes, 9982-9984 [2011-4011]

Download as PDF 9982 Federal Register / Vol. 76, No. 36 / Wednesday, February 23, 2011 / Proposed Rules Submit comments, labeled ‘‘DOE NEPA Implementing Procedures, RIN 1990–AA34,’’ by one of the following methods: 1. Federal eRulemaking Portal: https://www.regulations.gov. Follow the online instructions for submitting comments electronically. This rulemaking is assigned Docket ID: DOE– HQ–2010–0002. Comments may be entered directly on the Web site. Electronic files may be submitted to this Web site. 2. Mail: Mail comments to NEPA Rulemaking Comments, Office of NEPA Policy and Compliance (GC–54), U.S. Department of Energy, 1000 Independence Avenue, SW., Washington, DC 20585. Because security screening may delay mail sent through the U.S. Postal Service, DOE encourages electronic submittal of comments. ADDRESSES: For general information about DOE’s NEPA procedures, contact Ms. Carol Borgstrom, Director, Office of NEPA Policy and Compliance, at 202–586– 4600 or leave a message at 800–472– 2756. For questions concerning how to comment on this proposed rule, contact Ms. Yardena Mansoor, Office of NEPA Policy and Compliance, at askNEPA@hq.doe.gov or 202–586–9326. FOR FURTHER INFORMATION CONTACT: On January 3, 2011, DOE published a Notice of Proposed Rulemaking in the Federal Register (76 FR 214) to invite public comment on proposed amendments to its existing regulations governing compliance with NEPA and announce a public hearing. The notice provided for the submission of comments by February 17, 2011, including at a public hearing held on February 4, 2011. The National Wildlife Federation, on behalf of itself and nine other organizations, requested DOE to extend the comment period to allow additional time for review of the proposed rule and the submission of comments. DOE has determined that reopening the public comment period in response to this request is appropriate and hereby re-opens the comment period. DOE will consider any comments received between February 23, 2011 and March 7, 2011, and deems any comments received between publication of the Notice of Proposed Rulemaking on January 3, 2011, and March 7, 2011, to be timely submitted. WReier-Aviles on DSKDVH8Z91PROD with PROPOSALS SUPPLEMENTARY INFORMATION: VerDate Mar<15>2010 15:04 Feb 22, 2011 Jkt 223001 Issued in Washington, DC, on February 16, 2011. Eric J. Fygi, Acting General Counsel. [FR Doc. 2011–3981 Filed 2–22–11; 8:45 am] BILLING CODE 6450–01–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2011–0043; Directorate Identifier 2010–NM–192–AD] RIN 2120–AA64 Airworthiness Directives; Bombardier, Inc. Model DHC–8–400 Series Airplanes Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). AGENCY: 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: SUMMARY: During production quality inspections of the aeroplane fuel motive flow system, it was discovered that some motive flow check valves (MFCV) were manufactured with an outlet fitting containing red anodized threads. These MFCV do not provide adequate electrical bonding between the valve and the adjacent fitting. In the absence of proper electrical bonding within the motive flow system, the aeroplane fuel tank could be exposed to ignition sources in the case of a lightning strike. * * * * * The unsafe condition is the potential for ignition sources inside the fuel tanks, which, in combination with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of the airplane. The proposed AD would require actions that are intended to address the unsafe condition described in the MCAI. DATES: We must receive comments on this proposed AD by April 11, 2011. ADDRESSES: You may send comments by any of the following methods: • Federal eRulemaking Portal: Go to https://www.regulations.gov. Follow the instructions for submitting comments. • Fax: (202) 493–2251. • Mail: U.S. Department of Transportation, Docket Operations, M– PO 00000 Frm 00005 Fmt 4702 Sfmt 4702 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., Q–Series Technical Help Desk, 123 Garratt Boulevard, Toronto, Ontario M3K 1Y5, Canada; telephone 416–375– 4000; fax 416–375–4539; e-mail thd.qseries@aero.bombardier.com; Internet https://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 https:// 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: James Delisio, Aerospace Engineer, Airframe and Mechanical Systems Branch, ANE–171, FAA, New York Aircraft Certification Office (ACO), 1600 Stewart Avenue, Suite 410, Westbury, New York 11590; telephone (516) 228– 7321; 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–2011–0043; Directorate Identifier 2010–NM–192–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 https:// E:\FR\FM\23FEP1.SGM 23FEP1 Federal Register / Vol. 76, No. 36 / Wednesday, February 23, 2011 / Proposed Rules www.regulations.gov, including any personal information you provide. We will also post a report summarizing each substantive verbal contact we receive about this proposed AD. Discussion Transport Canada Civil Aviation (TCCA), which is the aviation authority for Canada, has issued Canadian Airworthiness Directive CF–2010–21, dated July 20, 2010 (referred to after this as ‘‘the MCAI’’), to correct an unsafe condition for the specified products. The MCAI states: During production quality inspections of the aeroplane fuel motive flow system, it was discovered that some motive flow check valves (MFCV) were manufactured with an outlet fitting containing red anodized threads. These MFCV do not provide adequate electrical bonding between the valve and the adjacent fitting. In the absence of proper electrical bonding within the motive flow system, the aeroplane fuel tank could be exposed to ignition sources in the case of a lightning strike. This [TCCA] directive is issued to [do a general visual inspection to] verify the proper configuration of the MFCV and if required, replace the affected MFCV with a MFCV that has a chemically filmed (gold color) outlet valve fitting, which provides adequate electrical bonding. The unsafe condition is the potential for ignition sources inside the fuel tanks, which, in combination with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of the airplane. You may obtain further information by examining the MCAI in the AD docket. Relevant Service Information Bombardier has issued Service Bulletin 84–28–08, dated March 11, 2010. The actions described in this service information are intended to correct the unsafe condition identified in the MCAI. WReier-Aviles on DSKDVH8Z91PROD with PROPOSALS 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. VerDate Mar<15>2010 15:04 Feb 22, 2011 Jkt 223001 9983 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. 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. Costs of Compliance Based on the service information, we estimate that this proposed AD would affect about 67 products of U.S. registry. We also estimate that it would take about 33 work-hours per product to comply with the basic requirements of this proposed AD. The average labor rate is $85 per work-hour. Required parts would cost about $130 per product. Based on these figures, we estimate the cost of the proposed AD on U.S. operators to be $196,645, or $2,935 per product. List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. 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 proposed 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 PO 00000 Frm 00006 Fmt 4702 Sfmt 4702 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–2011– 0043; Directorate Identifier 2010–NM– 192–AD. Comments Due Date (a) We must receive comments by April 11, 2011. Affected ADs (b) None. Applicability (c) This AD applies to Bombardier, Inc. Model DHC–8–400, –401, and –402 airplanes, certificated in any category; having serial numbers 4001 through 4190 inclusive, 4199 through 4201 inclusive, and 4203 through 4216 inclusive; equipped with a motive flow check valve (MFCV) having part number (P/N) 2960018–101. Subject (d) Air Transport Association (ATA) of America Code 28, Fuel. Reason (e) The mandatory continuing airworthiness information (MCAI) states: During production quality inspections of the aeroplane fuel motive flow system, it was discovered that some motive flow check valves (MFCV) were manufactured with an E:\FR\FM\23FEP1.SGM 23FEP1 9984 Federal Register / Vol. 76, No. 36 / Wednesday, February 23, 2011 / Proposed Rules outlet fitting containing red anodized threads. These MFCV do not provide adequate electrical bonding between the valve and the adjacent fitting. In the absence of proper electrical bonding within the motive flow system, the aeroplane fuel tank could be exposed to ignition sources in the case of a lightning strike. * * * * * (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. The unsafe condition is the potential for ignition sources inside the fuel tanks, which, in combination with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of the airplane. Related Information (k) Refer to TCCA Airworthiness Directive CF–2010–21, dated July 20, 2010; and Bombardier Service Bulletin 84–28–08, dated March 11, 2010; for related information. 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. Issued in Renton, Washington on February 14, 2011. Kalene C. Yanamura, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. Actions (g) Within 6,000 flight hours after the effective date of this AD, do a general visual inspection for red anodized threads of the outlet fitting of the MFCV having P/N 2960018–101 installed in the left and right wing fuel tanks, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 84–28–08, dated March 11, 2010. If the MFCV has a chemical film coating (gold color) outlet fitting, no further action is required by AD, except as required by paragraph (i) of this AD. (h) If during the inspection required by paragraph (g) of this AD, a MFCV having a red anodized check valve outlet fitting is found: Before further flight, replace the MFCV with a MFCV that has a chemical film coating (gold color) check valve outlet fitting, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 84–28–08, dated March 11, 2010. (i) As of the effective date of this AD, no person may install a replacement MFCV having P/N 2960018–101, with a red anodized check valve outlet fitting, on any airplane. [FR Doc. 2011–4011 Filed 2–22–11; 8:45 am] FAA AD Differences WReier-Aviles on DSKDVH8Z91PROD with PROPOSALS Note 1: 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 appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/ certificate holding district office. The AMOC approval letter must specifically reference this AD. VerDate Mar<15>2010 15:04 Feb 22, 2011 Jkt 223001 BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2011–0139; Directorate Identifier 2010–CE–057–AD] RIN 2120–AA64 Airworthiness Directives; B/E Aerospace, Continuous Flow Passenger Oxygen Mask Assembly, Part Numbers 174006–(), 174080–(), 174085–(), 174095–(), 174097–(), and 174098–() Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). AGENCY: We propose to adopt a new airworthiness directive (AD) for the products listed above, except for those that are currently affected by similar action through any of five ADs applicable to Boeing products. This proposed AD would require an inspection/records check to determine the manufacturer and part number of the oxygen mask assemblies installed, an inspection to determine the manufacturing date and modification status if certain oxygen mask assemblies are installed, and corrective action for certain oxygen mask assemblies. This proposed AD was prompted by a report that several oxygen mask assemblies with broken in-line flow indicators were found following a mask deployment. We are proposing this AD to prevent the inline flow indicators of the oxygen mask assembly from fracturing and separating, which could inhibit oxygen flow to the masks. This condition could consequently result in occupants SUMMARY: PO 00000 Frm 00007 Fmt 4702 Sfmt 4702 developing hypoxia following a depressurization event. DATES: We must receive comments on this proposed AD by April 11, 2011. ADDRESSES: You may send comments by any of the following methods: • Federal eRulemaking Portal: Go to https://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: Deliver to Mail address above between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. For service information identified in this proposed AD, contact B/E Aerospace, 10800 Pflumm Road, Lenexa, Kansas 66215; telephone: 913– 888–9800; fax: 913–469–8419; Internet: https://www.beaerospace.com. You may review copies of the referenced service information at the FAA, Small Airplane Directorate, 901 Locust, Kansas City, Missouri 64106. For information on the availability of this material at the FAA, call 816–329–4148. Examining the AD Docket You may examine the AD docket on the Internet at https:// 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 (phone: 800–647–5527) is in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: David Fairback, Aerospace Engineer, Wichita Aircraft Certification Office, FAA, 1801 Airport Road, Room 100, Wichita, Kansas 67209; telephone: (316) 946–4154; fax: (316) 946–4107; e-mail: david.fairback@faa.gov. SUPPLEMENTARY INFORMATION: Comments Invited We invite you to send any written relevant data, views, or arguments about this proposal. Send your comments to an address listed under the ADDRESSES section. Include ‘‘Docket No. FAA– 2011–0139; Directorate Identifier 2010– CE–057–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 E:\FR\FM\23FEP1.SGM 23FEP1

Agencies

[Federal Register Volume 76, Number 36 (Wednesday, February 23, 2011)]
[Proposed Rules]
[Pages 9982-9984]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2011-4011]


=======================================================================
-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2011-0043; Directorate Identifier 2010-NM-192-AD]
RIN 2120-AA64


Airworthiness Directives; Bombardier, Inc. Model DHC-8-400 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 production quality inspections of the aeroplane fuel 
motive flow system, it was discovered that some motive flow check 
valves (MFCV) were manufactured with an outlet fitting containing 
red anodized threads. These MFCV do not provide adequate electrical 
bonding between the valve and the adjacent fitting.
    In the absence of proper electrical bonding within the motive 
flow system, the aeroplane fuel tank could be exposed to ignition 
sources in the case of a lightning strike.
* * * * *

The unsafe condition is the potential for ignition sources inside the 
fuel tanks, which, in combination with flammable fuel vapors, could 
result in a fuel tank explosion and consequent loss of the airplane. 
The proposed AD would require actions that are intended to address the 
unsafe condition described in the MCAI.

DATES: We must receive comments on this proposed AD by April 11, 2011.

ADDRESSES: You may send comments by any of the following methods:
     Federal eRulemaking Portal: Go to https://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., Q-Series Technical Help Desk, 123 Garratt Boulevard, 
Toronto, Ontario M3K 1Y5, Canada; telephone 416-375-4000; fax 416-375-
4539; e-mail thd.qseries@aero.bombardier.com; Internet https://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 https://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: James Delisio, Aerospace Engineer, 
Airframe and Mechanical Systems Branch, ANE-171, FAA, New York Aircraft 
Certification Office (ACO), 1600 Stewart Avenue, Suite 410, Westbury, 
New York 11590; telephone (516) 228-7321; 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-2011-0043; 
Directorate Identifier 2010-NM-192-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 https://

[[Page 9983]]

www.regulations.gov, including any personal information you provide. We 
will also post a report summarizing each substantive verbal contact we 
receive about this proposed AD.

Discussion

    Transport Canada Civil Aviation (TCCA), which is the aviation 
authority for Canada, has issued Canadian Airworthiness Directive CF-
2010-21, dated July 20, 2010 (referred to after this as ``the MCAI''), 
to correct an unsafe condition for the specified products. The MCAI 
states:

    During production quality inspections of the aeroplane fuel 
motive flow system, it was discovered that some motive flow check 
valves (MFCV) were manufactured with an outlet fitting containing 
red anodized threads. These MFCV do not provide adequate electrical 
bonding between the valve and the adjacent fitting.
    In the absence of proper electrical bonding within the motive 
flow system, the aeroplane fuel tank could be exposed to ignition 
sources in the case of a lightning strike.
    This [TCCA] directive is issued to [do a general visual 
inspection to] verify the proper configuration of the MFCV and if 
required, replace the affected MFCV with a MFCV that has a 
chemically filmed (gold color) outlet valve fitting, which provides 
adequate electrical bonding.

The unsafe condition is the potential for ignition sources inside the 
fuel tanks, which, in combination with flammable fuel vapors, could 
result in a fuel tank explosion and consequent loss of the airplane. 
You may obtain further information by examining the MCAI in the AD 
docket.

Relevant Service Information

    Bombardier has issued Service Bulletin 84-28-08, dated March 11, 
2010. The actions described in this service information are intended to 
correct the unsafe condition identified in the MCAI.

FAA's Determination and Requirements of This Proposed AD

    This product has been approved by the aviation authority of another 
country, and is approved for operation in the United States. Pursuant 
to our bilateral agreement with the State of Design Authority, we have 
been notified of the unsafe condition described in the MCAI and service 
information referenced above. We are proposing this AD because we 
evaluated all pertinent information and determined an unsafe condition 
exists and is likely to exist or develop on other products of the same 
type design.

Differences Between This AD and the MCAI or Service Information

    We have reviewed the MCAI and related service information and, in 
general, agree with their substance. But 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 67 products of U.S. registry. We also estimate that 
it would take about 33 work-hours per product to comply with the basic 
requirements of this proposed AD. The average labor rate is $85 per 
work-hour. Required parts would cost about $130 per product. Based on 
these figures, we estimate the cost of the proposed AD on U.S. 
operators to be $196,645, or $2,935 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 proposed 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.


Sec.  39.13  [Amended]

    2. The FAA amends Sec.  39.13 by adding the following new AD:

Bombardier, Inc.: Docket No. FAA-2011-0043; Directorate Identifier 
2010-NM-192-AD.

Comments Due Date

    (a) We must receive comments by April 11, 2011.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to Bombardier, Inc. Model DHC-8-400, -401, 
and -402 airplanes, certificated in any category; having serial 
numbers 4001 through 4190 inclusive, 4199 through 4201 inclusive, 
and 4203 through 4216 inclusive; equipped with a motive flow check 
valve (MFCV) having part number (P/N) 2960018-101.

Subject

    (d) Air Transport Association (ATA) of America Code 28, Fuel.

Reason

    (e) The mandatory continuing airworthiness information (MCAI) 
states:
    During production quality inspections of the aeroplane fuel 
motive flow system, it was discovered that some motive flow check 
valves (MFCV) were manufactured with an

[[Page 9984]]

outlet fitting containing red anodized threads. These MFCV do not 
provide adequate electrical bonding between the valve and the 
adjacent fitting.
    In the absence of proper electrical bonding within the motive 
flow system, the aeroplane fuel tank could be exposed to ignition 
sources in the case of a lightning strike.
* * * * *

The unsafe condition is the potential for ignition sources inside 
the fuel tanks, which, in combination with flammable fuel vapors, 
could result in a fuel tank explosion and consequent loss 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 6,000 flight hours after the effective date of this 
AD, do a general visual inspection for red anodized threads of the 
outlet fitting of the MFCV having P/N 2960018-101 installed in the 
left and right wing fuel tanks, in accordance with the 
Accomplishment Instructions of Bombardier Service Bulletin 84-28-08, 
dated March 11, 2010. If the MFCV has a chemical film coating (gold 
color) outlet fitting, no further action is required by AD, except 
as required by paragraph (i) of this AD.
    (h) If during the inspection required by paragraph (g) of this 
AD, a MFCV having a red anodized check valve outlet fitting is 
found: Before further flight, replace the MFCV with a MFCV that has 
a chemical film coating (gold color) check valve outlet fitting, in 
accordance with the Accomplishment Instructions of Bombardier 
Service Bulletin 84-28-08, dated March 11, 2010.
    (i) As of the effective date of this AD, no person may install a 
replacement MFCV having P/N 2960018-101, with a red anodized check 
valve outlet fitting, on any airplane.

FAA AD Differences

    Note 1: 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 appropriate 
principal inspector, or lacking a principal inspector, the manager 
of the local flight standards district office/certificate holding 
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.

Related Information

    (k) Refer to TCCA Airworthiness Directive CF-2010-21, dated July 
20, 2010; and Bombardier Service Bulletin 84-28-08, dated March 11, 
2010; for related information.

    Issued in Renton, Washington on February 14, 2011.
Kalene C. Yanamura,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2011-4011 Filed 2-22-11; 8:45 am]
BILLING CODE 4910-13-P
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.