Airworthiness Directives; Bombardier, Inc. Airplanes, 64801-64803 [2011-26081]

Download as PDF Federal Register / Vol. 76, No. 202 / Wednesday, October 19, 2011 / Rules and Regulations (5) You may also review copies of the service information that is incorporated by reference at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202–741–6030, or go to: http://www.archives.gov/federal_register/ code_of_federal_regulations/ ibr_locations.html. Issued in Renton, Washington, on September 28, 2011. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2011–26082 Filed 10–18–11; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2011–0564; Directorate Identifier 2011–NM–021–AD; Amendment 39–16830; AD 2011–21–07] Discussion RIN 2120–AA64 Airworthiness Directives; Bombardier, Inc. Airplanes Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final rule. AGENCY: We are adopting a new airworthiness directive (AD) for Bombardier, Inc. Model CL–600–2B19 (Regional Jet Series 100 & 440); Model CL–600–2C10 (Regional Jet Series 700, 701, & 702); Model CL–600–2D15 (Regional Jet Series 705); and Model CL–600–2D24 (Regional Jet Series 900) airplanes. This AD results from mandatory continuing airworthiness information (MCAI) issued by an airworthiness authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as: sroberts on DSK5SPTVN1PROD with RULES SUMMARY: There have been several in-service reports of airspeed mismatch between the pilot and co-pilot’s airspeed indicators. It was discovered that during or after heavy rain, the pitot-static tubing may become partially or completely blocked by water, which fails to enter the drain bottles. Investigation revealed that drain bottles used in the primary pitot-static system include check valves, which impede the entry of water into the drain bottle. This condition, if not corrected, may result in erroneous airspeed and altitude indications. * * * * * We are issuing this AD to require actions to correct the unsafe condition on these products. VerDate Mar<15>2010 15:51 Oct 18, 2011 Jkt 223001 This AD becomes effective November 23, 2011. The Director of the Federal Register approved the incorporation by reference of certain publications listed in this AD as of November 23, 2011. ADDRESSES: You may examine the AD docket on the Internet at http:// www.regulations.gov or in person at the U.S. Department of Transportation, Docket Operations, M–30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue, SE., Washington, DC. FOR FURTHER INFORMATION CONTACT: Christopher Alfano, Aerospace Engineer, Airframe & Mechanical Systems Branch, ANE–171, New York Aircraft Certification Office (ACO), FAA, 1600 Stewart Avenue, Suite 410, Westbury, New York 11590; telephone: (516) 228–7340; fax: (516) 794–5531. SUPPLEMENTARY INFORMATION: DATES: We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 to include an AD that would apply to the specified products. That NPRM was published in the Federal Register on June 9, 2011 (76 FR 33658). That NPRM proposed to correct an unsafe condition for the specified products. The MCAI states: There have been several in-service reports of airspeed mismatch between the pilot and co-pilot’s airspeed indicators. It was discovered that during or after heavy rain, the pitot-static tubing may become partially or completely blocked by water, which fails to enter the drain bottles. Investigation revealed that drain bottles used in the primary pitot-static system include check valves, which impede the entry of water into the drain bottle. This condition, if not corrected, may result in erroneous airspeed and altitude indications. This [Transport Canada Civil Aviation (TCCA)] directive mandates replacement of the [certain] Water Accumulator Assemblies [with new water accumulator assemblies] to improve drainage of the pitot-static tubing. You may obtain further information by examining the MCAI in the AD docket. Comments We gave the public the opportunity to participate in developing this AD. We considered the comments received. Request for Frequent Repetitive Inspections Instead of Replacements Mesa Airlines requested we revise the NPRM (76 FR 33658, June 9, 2011) to change the maintenance program to reduce the repetitive inspection intervals for the water accumulator as an option to installing the enlarged drain tubes. Mesa stated that the main PO 00000 Frm 00021 Fmt 4700 Sfmt 4700 64801 pitot-static drain assemblies on its fleet are inspected for moisture every 500 or 600 flight hours (depending on the model). We disagree because the pitot static tubing/water accumulator has a design deficiency that may cause it to become partially or completely blocked by water. This pitot static tubing/water accumulator design must be replaced with a new pitot static water accumulator design to eliminate this unsafe condition. Inspecting the pitot static water accumulator more frequently will not meet the intent of this AD. Once we issue this AD, any operator may request approval of an alternative method of compliance (AMOC) under the provisions of paragraph (k)(1) of this AD. Sufficient data must be submitted to substantiate that repetitive inspections would provide an acceptable level of safety. We have not changed the AD in this regard. Request To Change Applicability Serial Numbers To Match Service Bulletin American Eagle Airlines requested that paragraph (c) of the NPRM (76 FR 33658, June 9, 2011) be changed from including all serial numbers of the specified airplanes to only those serial numbers called out in Bombardier Service Bulletin 601R–34–147, Revision B, dated March 8, 2011; and Bombardier Service Bulletin 670BA–34–030, Revision B, dated March 23, 2010. American Eagle stated as justification that the requirements of the NPRM were incorporated on airplanes going forward in production, and the illustrated parts catalog applicability has been updated for the affected part as well. We disagree. Transport Canada Civil Aviation (TCCA), which is the airworthiness authority for Canada, has determined that all serial numbers of the specified airplane models need to be called out in its AD in order to prevent unsafe parts from being installed in any airplane. We agree with TCCA that all serial numbers need to be included in this AD, and also have included in paragraph (h) of the AD a prohibition against installing certain unsafe water accumulator assemblies on the pitot and static lines of the air data computer on any airplane. Conclusion We reviewed the available data, including the comments received, and determined that air safety and the public interest require adopting the AD as proposed. E:\FR\FM\19OCR1.SGM 19OCR1 64802 Federal Register / Vol. 76, No. 202 / Wednesday, October 19, 2011 / Rules and Regulations 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 a U.S. court of law. 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 required different actions in this AD from those in the MCAI in order to follow our FAA policies. Any such differences are described in a separate paragraph of the AD. These requirements, if any, take precedence over the actions copied from the MCAI. Costs of Compliance We estimate that this AD will affect 1,041 products of U.S. registry. We also estimate that it will take about 2 workhours per product to comply with the basic requirements of this AD. The average labor rate is $85 per work-hour. Required parts will cost about $1,200 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 parts. As we do not control warranty coverage for affected parties, some parties may incur costs higher than estimated here. Based on these figures, we estimate the cost of this AD to the U.S. operators to be $1,426,170, or $1,370 per product. sroberts on DSK5SPTVN1PROD with RULES 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. VerDate Mar<15>2010 15:51 Oct 18, 2011 Jkt 223001 Regulatory Findings We determined that this AD will not have federalism implications under Executive Order 13132. This AD will 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 AD: 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 AD and placed it in the AD docket. 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 the NPRM (76 FR 33658, June 9, 2011), 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. List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. Adoption of the Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA amends 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: ■ 2011–21–07 Bombardier, Inc.: Amendment 39–16830. Docket No. FAA–2011–0564; Directorate Identifier 2011–NM–021–AD. Effective Date (a) This airworthiness directive (AD) becomes effective November 23, 2011. PO 00000 Frm 00022 Fmt 4700 Sfmt 4700 Affected ADs (b) None. Applicability (c) This AD applies to Bombardier, Inc. Model CL–600–2B19 (Regional Jet Series 100 & 440) airplanes, serial numbers 7003 through 7067 inclusive, 7069 through 7990 inclusive, 8000 through 8107 inclusive, and subsequent; all Model CL–600–2C10 (Regional Jet Series 700, 701, & 702) airplanes; all Model CL–600–2D15 (Regional Jet Series 705) airplanes; and all Model CL– 600–2D24 (Regional Jet Series 900) airplanes; certificated in any category. Subject (d) Air Transport Association (ATA) of America Code 34: Navigation. Reason (e) The mandatory continuing airworthiness information (MCAI) states: There have been several in-service reports of airspeed mismatch between the pilot and co-pilot’s airspeed indicators. It was discovered that during or after heavy rain, the pitot-static tubing may become partially or completely blocked by water, which fails to enter the drain bottles. Investigation revealed that drain bottles used in the primary pitot-static system include check valves, which impede the entry of water into the drain bottle. This condition, if not corrected, may result in erroneous airspeed and altitude indications. * * * * * 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 9 months after the effective date of this AD, do the actions specified in paragraphs (g)(1) and (g)(2) of this AD, as applicable. (1) For Model CL–600–2B19 (Regional Jet Series 100 & 440) airplanes identified in Bombardier Service Bulletin 601R–34–147, Revision B, dated March 8, 2011: Replace water accumulator assemblies having part numbers (P/N) 50029–001, 9435015, 50030– 001, and 9435014 installed on the pitot and static lines of the air data computer (ADC) with new or serviceable water accumulator assemblies having P/N 50036–001, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 601R–34–147, Revision B, dated March 8, 2011. (2) For Model CL–600–2C10 (Regional Jet Series 700, 701, & 702), CL–600–2D15 (Regional Jet Series 705), and CL–600–2D24 (Regional Jet Series 900) airplanes: Replace water accumulator assemblies having P/N 50033–001 installed on the pitot and static lines of the ADC with new or serviceable water accumulator assemblies having P/N 50036–001, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 670BA–34–030, Revision B, dated March 23, 2010. E:\FR\FM\19OCR1.SGM 19OCR1 Federal Register / Vol. 76, No. 202 / Wednesday, October 19, 2011 / Rules and Regulations Parts Installation (h) As of the effective date of this AD, no person may install on any airplane a water accumulator assembly, P/N 50029–001, 9435015, 50030–001, or 9435014 for Model CL–600–2B19 (Regional Jet Series 100 & 440) airplanes, or P/N 50033–001 for Model CL– 600–2C10 (Regional Jet Series 700, 701, & 702), Model CL–600–2D15 (Regional Jet Series 705), and Model CL–600–2D24 (Regional Jet Series 900) airplanes on the pitot and static lines of the ADC. Credit for Actions Accomplished in Accordance With Previous Service Information (i) Replacing water accumulator assemblies in accordance with Bombardier Service Bulletin 670BA–34–147, dated April 1, 2009; or Revision A, dated November 3, 2009 ((for Model CL–600–2B19 (Regional Jet Series 100 & 440) airplanes)), before the effective date of this AD is acceptable for compliance with the corresponding replacement required by paragraph (g)(1) of this AD. (j) Replacing water accumulator assemblies in accordance with Bombardier Service Bulletin 670BA–34–030, dated April 1, 2009; or Revision A, dated November 3, 2009 ((for Model CL–600–2C10 (Regional Jet Series 700, 701, & 702), CL–600–2D15 (Regional Jet Series 705), and CL–600–2D24 (Regional Jet Series 900) airplanes)); before the effective date of this AD, is acceptable for compliance with the corresponding replacement required by paragraph (g)(2) of this AD. FAA AD Differences Note 1: This AD differs from the MCAI and/or service information as follows: No differences. sroberts on DSK5SPTVN1PROD with RULES Other FAA AD Provisions (k) 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. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the manager of the ACO, send it 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, 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. VerDate Mar<15>2010 15:51 Oct 18, 2011 Jkt 223001 Related Information (l) Refer to MCAI Transport Canada Civil Aviation Airworthiness Directive CF–2010– 37, dated October 28, 2010; Bombardier Service Bulletin 601R–34–147, Revision B, dated March 8, 2011; and Bombardier Service Bulletin 670BA–34–030, Revision B, dated March 23, 2010; for related information. Material Incorporated by Reference (m) You must use Bombardier Service Bulletin 601R–34–147, Revision B, dated March 8, 2011; and Bombardier Service Bulletin 670BA–34–030, Revision B, dated March 23, 2010; as applicable; to do the actions required by this AD, unless the AD specifies otherwise. (1) The Director of the Federal Register approved the incorporation by reference of this service information under 5 U.S.C. 552(a) and 1 CFR part 51. (2) For service information identified in ˆ this AD, contact Bombardier, Inc., 400 Cote´ Vertu Road West, Dorval, Quebec H4S 1Y9, Canada; phone: 514–855–5000; fax: 514– 855–7401; e-mail: thd.crj@aero.bombardier. com; Internet: http://www.bombardier.com. (3) You may review copies of the 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. (4) You may also review copies of the service information that is incorporated by reference at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202–741–6030, or go to: http://www.archives.gov/federal_register/ code_of_federal_regulations/ibr_locations. html. Issued in Renton, Washington, on September 28, 2011. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2011–26081 Filed 10–18–11; 8:45 am] BILLING CODE 4910–13–P INTERNATIONAL TRADE COMMISSION 19 CFR Part 210 [Docket No. MISC–032] Rules of Adjudication and Enforcement International Trade Commission ACTION: Final rule. AGENCY: The United States International Trade Commission (‘‘Commission’’) amends its Rules of Practice and Procedure concerning rules of adjudication and enforcement. The amendments are necessary to gather more information on public interest issues arising from complaints filed SUMMARY: PO 00000 Frm 00023 Fmt 4700 Sfmt 4700 64803 with the Commission requesting institution of an investigation under Section 337 of the Tariff Act of 1930. The intended effect of the amendments is to aid the Commission in identifying investigations that require further development of public interest issues in the record, and to identify and develop information regarding the public interest at each stage of the investigation. DATES: Effective November 18, 2011. FOR FURTHER INFORMATION CONTACT: Megan M. Valentine, Office of the General Counsel, United States International Trade Commission, telephone 202–708–2301. Hearingimpaired individuals are advised that information on this matter can be obtained by contacting the Commission’s TDD terminal at 202– 205–1810. General information concerning the Commission may also be obtained by accessing its Internet server at http://www.usitc.gov. SUPPLEMENTARY INFORMATION: Background Section 335 of the Tariff Act of 1930 (19 U.S.C. 1335) authorizes the Commission to adopt such reasonable procedures, rules, and regulations as it deems necessary to carry out its functions and duties. This rulemaking seeks to update certain provisions of the Commission’s existing Rules of Practice and Procedure. The Commission is amending its rules covering investigations under Section 337 of the Tariff Act of 1930 (19 U.S.C. 1337) (‘‘Section 337’’) in order to increase the efficiency of its Section 337 investigations. Specifically, the changes to the Commission’s Rules are for the purpose of improving the Commission’s procedures and ensuring the completeness of the record with respect to the required analysis concerning the public interest under Sections 337(d)(1) and (f)(1). There is no change in the Commission’s substantive practice with respect to its consideration of the public interest factors in its determinations relating to the appropriate remedy. The Commission published a notice of proposed rulemaking (‘‘NOPR’’) in the Federal Register at 75 FR 60671 (Oct. 1, 2010), proposing to amend the Commission’s Rules of Practice and Procedure to gather more information on public interest issues. Consistent with its ordinary practice, the Commission invited the public to comment on all the proposed rules amendments. This practice entails the following steps: (1) Publication of an NOPR; (2) solicitation of public comments on the proposed E:\FR\FM\19OCR1.SGM 19OCR1

Agencies

[Federal Register Volume 76, Number 202 (Wednesday, October 19, 2011)]
[Rules and Regulations]
[Pages 64801-64803]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2011-26081]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2011-0564; Directorate Identifier 2011-NM-021-AD; 
Amendment 39-16830; AD 2011-21-07]
RIN 2120-AA64


Airworthiness Directives; Bombardier, Inc. Airplanes

AGENCY: Federal Aviation Administration (FAA), Department of 
Transportation (DOT).

ACTION: Final rule.

-----------------------------------------------------------------------

SUMMARY: We are adopting a new airworthiness directive (AD) for 
Bombardier, Inc. Model CL-600-2B19 (Regional Jet Series 100 & 440); 
Model CL-600-2C10 (Regional Jet Series 700, 701, & 702); Model CL-600-
2D15 (Regional Jet Series 705); and Model CL-600-2D24 (Regional Jet 
Series 900) airplanes. This AD results from mandatory continuing 
airworthiness information (MCAI) issued by an airworthiness authority 
of another country to identify and correct an unsafe condition on an 
aviation product. The MCAI describes the unsafe condition as:

    There have been several in-service reports of airspeed mismatch 
between the pilot and co-pilot's airspeed indicators. It was 
discovered that during or after heavy rain, the pitot-static tubing 
may become partially or completely blocked by water, which fails to 
enter the drain bottles. Investigation revealed that drain bottles 
used in the primary pitot-static system include check valves, which 
impede the entry of water into the drain bottle. This condition, if 
not corrected, may result in erroneous airspeed and altitude 
indications.
* * * * *
We are issuing this AD to require actions to correct the unsafe 
condition on these products.

DATES: This AD becomes effective November 23, 2011.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in this AD as of November 23, 
2011.

ADDRESSES: You may examine the AD docket on the Internet at http://www.regulations.gov or in person at the U.S. Department of 
Transportation, Docket Operations, M-30, West Building Ground Floor, 
Room W12-140, 1200 New Jersey Avenue, SE., Washington, DC.

FOR FURTHER INFORMATION CONTACT: Christopher Alfano, Aerospace 
Engineer, Airframe & Mechanical Systems Branch, ANE-171, New York 
Aircraft Certification Office (ACO), FAA, 1600 Stewart Avenue, Suite 
410, Westbury, New York 11590; telephone: (516) 228-7340; fax: (516) 
794-5531.

SUPPLEMENTARY INFORMATION: 

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 to include an AD that would apply to the specified products. 
That NPRM was published in the Federal Register on June 9, 2011 (76 FR 
33658). That NPRM proposed to correct an unsafe condition for the 
specified products. The MCAI states:

    There have been several in-service reports of airspeed mismatch 
between the pilot and co-pilot's airspeed indicators. It was 
discovered that during or after heavy rain, the pitot-static tubing 
may become partially or completely blocked by water, which fails to 
enter the drain bottles. Investigation revealed that drain bottles 
used in the primary pitot-static system include check valves, which 
impede the entry of water into the drain bottle. This condition, if 
not corrected, may result in erroneous airspeed and altitude 
indications.
    This [Transport Canada Civil Aviation (TCCA)] directive mandates 
replacement of the [certain] Water Accumulator Assemblies [with new 
water accumulator assemblies] to improve drainage of the pitot-
static tubing.

You may obtain further information by examining the MCAI in the AD 
docket.

Comments

    We gave the public the opportunity to participate in developing 
this AD. We considered the comments received.

Request for Frequent Repetitive Inspections Instead of Replacements

    Mesa Airlines requested we revise the NPRM (76 FR 33658, June 9, 
2011) to change the maintenance program to reduce the repetitive 
inspection intervals for the water accumulator as an option to 
installing the enlarged drain tubes. Mesa stated that the main pitot-
static drain assemblies on its fleet are inspected for moisture every 
500 or 600 flight hours (depending on the model).
    We disagree because the pitot static tubing/water accumulator has a 
design deficiency that may cause it to become partially or completely 
blocked by water. This pitot static tubing/water accumulator design 
must be replaced with a new pitot static water accumulator design to 
eliminate this unsafe condition. Inspecting the pitot static water 
accumulator more frequently will not meet the intent of this AD. Once 
we issue this AD, any operator may request approval of an alternative 
method of compliance (AMOC) under the provisions of paragraph (k)(1) of 
this AD. Sufficient data must be submitted to substantiate that 
repetitive inspections would provide an acceptable level of safety. We 
have not changed the AD in this regard.

Request To Change Applicability Serial Numbers To Match Service 
Bulletin

    American Eagle Airlines requested that paragraph (c) of the NPRM 
(76 FR 33658, June 9, 2011) be changed from including all serial 
numbers of the specified airplanes to only those serial numbers called 
out in Bombardier Service Bulletin 601R-34-147, Revision B, dated March 
8, 2011; and Bombardier Service Bulletin 670BA-34-030, Revision B, 
dated March 23, 2010. American Eagle stated as justification that the 
requirements of the NPRM were incorporated on airplanes going forward 
in production, and the illustrated parts catalog applicability has been 
updated for the affected part as well.
    We disagree. Transport Canada Civil Aviation (TCCA), which is the 
airworthiness authority for Canada, has determined that all serial 
numbers of the specified airplane models need to be called out in its 
AD in order to prevent unsafe parts from being installed in any 
airplane. We agree with TCCA that all serial numbers need to be 
included in this AD, and also have included in paragraph (h) of the AD 
a prohibition against installing certain unsafe water accumulator 
assemblies on the pitot and static lines of the air data computer on 
any airplane.

Conclusion

    We reviewed the available data, including the comments received, 
and determined that air safety and the public interest require adopting 
the AD as proposed.

[[Page 64802]]

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 a U.S. court of 
law. 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 required different actions in this AD from those 
in the MCAI in order to follow our FAA policies. Any such differences 
are described in a separate paragraph of the AD. These requirements, if 
any, take precedence over the actions copied from the MCAI.

Costs of Compliance

    We estimate that this AD will affect 1,041 products of U.S. 
registry. We also estimate that it will take about 2 work-hours per 
product to comply with the basic requirements of this AD. The average 
labor rate is $85 per work-hour. Required parts will cost about $1,200 
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 parts. As we do not control warranty coverage for 
affected parties, some parties may incur costs higher than estimated 
here. Based on these figures, we estimate the cost of this AD to the 
U.S. operators to be $1,426,170, or $1,370 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 AD will not have federalism implications 
under Executive Order 13132. This AD will 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 AD:
    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 AD and placed it in the AD docket.

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 the NPRM (76 FR 33658, June 9, 2011), 
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.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by 
reference, Safety.

Adoption of the Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA amends 14 CFR part 39 as follows:

PART 39--AIRWORTHINESS DIRECTIVES

0
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]

0
2. The FAA amends Sec.  39.13 by adding the following new AD:

2011-21-07 Bombardier, Inc.: Amendment 39-16830. Docket No. FAA-
2011-0564; Directorate Identifier 2011-NM-021-AD.

Effective Date

    (a) This airworthiness directive (AD) becomes effective November 
23, 2011.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to Bombardier, Inc. Model CL-600-2B19 
(Regional Jet Series 100 & 440) airplanes, serial numbers 7003 
through 7067 inclusive, 7069 through 7990 inclusive, 8000 through 
8107 inclusive, and subsequent; all Model CL-600-2C10 (Regional Jet 
Series 700, 701, & 702) airplanes; all Model CL-600-2D15 (Regional 
Jet Series 705) airplanes; and all Model CL-600-2D24 (Regional Jet 
Series 900) airplanes; certificated in any category.

Subject

    (d) Air Transport Association (ATA) of America Code 34: 
Navigation.

Reason

    (e) The mandatory continuing airworthiness information (MCAI) 
states:

    There have been several in-service reports of airspeed mismatch 
between the pilot and co-pilot's airspeed indicators. It was 
discovered that during or after heavy rain, the pitot-static tubing 
may become partially or completely blocked by water, which fails to 
enter the drain bottles. Investigation revealed that drain bottles 
used in the primary pitot-static system include check valves, which 
impede the entry of water into the drain bottle. This condition, if 
not corrected, may result in erroneous airspeed and altitude 
indications.
* * * * *

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 9 months after the effective date of this AD, do the 
actions specified in paragraphs (g)(1) and (g)(2) of this AD, as 
applicable.
    (1) For Model CL-600-2B19 (Regional Jet Series 100 & 440) 
airplanes identified in Bombardier Service Bulletin 601R-34-147, 
Revision B, dated March 8, 2011: Replace water accumulator 
assemblies having part numbers (P/N) 50029-001, 9435015, 50030-001, 
and 9435014 installed on the pitot and static lines of the air data 
computer (ADC) with new or serviceable water accumulator assemblies 
having P/N 50036-001, in accordance with the Accomplishment 
Instructions of Bombardier Service Bulletin 601R-34-147, Revision B, 
dated March 8, 2011.
    (2) For Model CL-600-2C10 (Regional Jet Series 700, 701, & 702), 
CL-600-2D15 (Regional Jet Series 705), and CL-600-2D24 (Regional Jet 
Series 900) airplanes: Replace water accumulator assemblies having 
P/N 50033-001 installed on the pitot and static lines of the ADC 
with new or serviceable water accumulator assemblies having P/N 
50036-001, in accordance with the Accomplishment Instructions of 
Bombardier Service Bulletin 670BA-34-030, Revision B, dated March 
23, 2010.

[[Page 64803]]

Parts Installation

    (h) As of the effective date of this AD, no person may install 
on any airplane a water accumulator assembly, P/N 50029-001, 
9435015, 50030-001, or 9435014 for Model CL-600-2B19 (Regional Jet 
Series 100 & 440) airplanes, or P/N 50033-001 for Model CL-600-2C10 
(Regional Jet Series 700, 701, & 702), Model CL-600-2D15 (Regional 
Jet Series 705), and Model CL-600-2D24 (Regional Jet Series 900) 
airplanes on the pitot and static lines of the ADC.

Credit for Actions Accomplished in Accordance With Previous Service 
Information

    (i) Replacing water accumulator assemblies in accordance with 
Bombardier Service Bulletin 670BA-34-147, dated April 1, 2009; or 
Revision A, dated November 3, 2009 ((for Model CL-600-2B19 (Regional 
Jet Series 100 & 440) airplanes)), before the effective date of this 
AD is acceptable for compliance with the corresponding replacement 
required by paragraph (g)(1) of this AD.
    (j) Replacing water accumulator assemblies in accordance with 
Bombardier Service Bulletin 670BA-34-030, dated April 1, 2009; or 
Revision A, dated November 3, 2009 ((for Model CL-600-2C10 (Regional 
Jet Series 700, 701, & 702), CL-600-2D15 (Regional Jet Series 705), 
and CL-600-2D24 (Regional Jet Series 900) airplanes)); before the 
effective date of this AD, is acceptable for compliance with the 
corresponding replacement required by paragraph (g)(2) of this AD.

FAA AD Differences

    Note 1: This AD differs from the MCAI and/or service information 
as follows: No differences.

Other FAA AD Provisions

    (k) 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. In accordance with 14 CFR 39.19, 
send your request to your principal inspector or local Flight 
Standards District Office, as appropriate. If sending information 
directly to the manager of the ACO, send it 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, 
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

    (l) Refer to MCAI Transport Canada Civil Aviation Airworthiness 
Directive CF-2010-37, dated October 28, 2010; Bombardier Service 
Bulletin 601R-34-147, Revision B, dated March 8, 2011; and 
Bombardier Service Bulletin 670BA-34-030, Revision B, dated March 
23, 2010; for related information.

Material Incorporated by Reference

    (m) You must use Bombardier Service Bulletin 601R-34-147, 
Revision B, dated March 8, 2011; and Bombardier Service Bulletin 
670BA-34-030, Revision B, dated March 23, 2010; as applicable; to do 
the actions required by this AD, unless the AD specifies otherwise.
    (1) The Director of the Federal Register approved the 
incorporation by reference of this service information under 5 
U.S.C. 552(a) and 1 CFR part 51.
    (2) For service information identified in this AD, contact 
Bombardier, Inc., 400 C[ocirc]te-Vertu Road West, Dorval, 
Qu[eacute]bec H4S 1Y9, Canada; phone: 514-855-5000; fax: 514-855-
7401; e-mail: thd.crj@aero.bombardier.com; Internet: http://www.bombardier.com.
    (3) You may review copies of the 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.
    (4) You may also review copies of the service information that 
is incorporated by reference at the National Archives and Records 
Administration (NARA). For information on the availability of this 
material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.

    Issued in Renton, Washington, on September 28, 2011.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2011-26081 Filed 10-18-11; 8:45 am]
BILLING CODE 4910-13-P