Airworthiness Directives; Construcciones Aeronauticas, S.A. (CASA), Model CN-235, CN-235-100, CN-235-200, and CN-235-300 Airplanes, 43632-43634 [E9-20581]

Download as PDF 43632 Federal Register / Vol. 74, No. 165 / Thursday, August 27, 2009 / Rules and Regulations required by this AD, if it is approved by an Authorized Representative for the Boeing Commercial Airplanes Delegation Option Authorization Organization who has been authorized by the Manager, Seattle ACO, to make those findings. For a repair method to be approved, the repair must meet the certification basis of the airplane, and the approval must specifically refer to this AD. Material Incorporated by Reference (q) You must use Boeing Alert Service Bulletin 747–53A2349, Revision 3, dated October 2, 2008, 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 Boeing Commercial Airplanes, Attention: Data & Services Management, P.O. Box 3707, MC 2H–65, Seattle, Washington 98124–2207; telephone 206–544–5000, extension 1, fax 206–766– 5680; e-mail me.boecom@boeing.com; Internet https://www.myboeingfleet.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 or 425–227–1152. (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: https://www.archives.gov/federal_register/ code_of_federal_regulations/ ibr_locations.html. Issued in Renton, Washington, on August 17, 2009. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. E9–20579 Filed 8–26–09; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2009–0386; Directorate Identifier 2008–NM–184–AD; Amendment 39–16002; AD 2009–18–06] srobinson on DSKHWCL6B1PROD with RULES RIN 2120–AA64 Airworthiness Directives; Construcciones Aeronauticas, S.A. (CASA), Model CN–235, CN–235–100, CN–235–200, and CN–235–300 Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final rule. VerDate Nov<24>2008 16:19 Aug 26, 2009 Jkt 217001 SUMMARY: We are adopting a new airworthiness directive (AD) for the products listed above. This 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 operation in icing conditions, an asymmetric configuration of the de-icing boots was detected, occurring during the inflation and deflation check of the de-icing system. This was found to be due to an unexpected failure mode in the pneumatic and de-icing system’s control electronic logic. This condition, if not corrected, could affect the de-icing capabilities of the boots installed on the wing and horizontal stabilizers, potentially leading to loss of control of the aircraft. * * * * * We are issuing this AD to require actions to correct the unsafe condition on these products. DATES: This AD becomes effective October 1, 2009. The Director of the Federal Register approved the incorporation by reference of certain publications listed in this AD as of October 1, 2009. ADDRESSES: You may examine the AD docket on the Internet at https:// 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: Shahram Daneshmandi, Aerospace Engineer, International Branch, ANM– 116, Transport Airplane Directorate, FAA, 1601 Lind Avenue, SW., Renton, Washington 98057–3356; telephone (425) 227–1112; fax (425) 227–1149. 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 April 29, 2009 (74 FR 19460). That NPRM proposed to correct an unsafe condition for the specified products. The MCAI states: During operation in icing conditions, an asymmetric configuration of the de-icing boots was detected, occurring during the inflation and deflation check of the de-icing system. This was found to be due to an unexpected failure mode in the pneumatic and de-icing system’s control electronic logic. This condition, if not corrected, could affect the de-icing capabilities of the boots installed on the wing and horizontal PO 00000 Frm 00014 Fmt 4700 Sfmt 4700 stabilizers, potentially leading to loss of control of the aircraft. To address and correct this unsafe condition, EADS–CASA developed modification 31558, approved by DGAC– Spain and incorporated into the Type Design Definition through the approval of CN–235– 300 version AE02, revision 14 of Spanish Type Certificate DGAC 01/86, dated 22 March 2002, and modification 31607, Minor Change approved by EADS–CASA under their DOA 21J.032 privileges, complementary to modification 31558. The entire modification package consists of an improvement of the de-icing boots electronic control system, making it capable of detecting all possible boot configurations on wings and horizontal stabilizers without affecting pneumatic system functions. The instructions for the in-service accomplishment of this modification have been published as CN–235 Service Bulletin (SB) 235–30–16 dated 21 January 2005. For the reasons described above, this EASA AD requires the modification of the De-Icing Boots control system in all aircraft that have not yet implemented the modification. 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 received no comments on the NPRM or on the determination of the cost to the public. Change to Parts Cost We have revised the parts cost to reflect the price of two kits from the manufacturer. The revised cost is less than the original cost presented in the NPRM. Conclusion We reviewed the available data and determined that air safety and the public interest require adopting the AD as proposed. 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 required different actions in this AD from those in the MCAI in order to follow our FAA policies. Any such differences are highlighted in a NOTE within the AD. Costs of Compliance We estimate that this AD will affect 8 products of U.S. registry. We also E:\FR\FM\27AUR1.SGM 27AUR1 Federal Register / Vol. 74, No. 165 / Thursday, August 27, 2009 / Rules and Regulations estimate that it will take about 65 workhours per product to comply with the basic requirements of this AD. The average labor rate is $80 per work-hour. Required parts will cost about $7,383 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 $100,664, or $12,583 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. srobinson on DSKHWCL6B1PROD with RULES 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. VerDate Nov<24>2008 16:19 Aug 26, 2009 Jkt 217001 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 the NPRM, 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: ■ 2009–18–06 Construcciones Aeronauticas, S.A. (CASA): Amendment 39–16002. Docket No. FAA–2009–0386; Directorate Identifier 2008–NM–184–AD. Effective Date (a) This airworthiness directive (AD) becomes effective October 1, 2009. Affected ADs (b) None. Applicability (c) This AD applies to CASA Model CN– 235, CN–235–100, CN–235–200, and CN– 235–300 airplanes, certificated in any category, all serial numbers up to, but not including, C–139. Subject (d) Air Transport Association (ATA) of America Code 30: Ice and rain protection. Reason (e) The mandatory continuing airworthiness information (MCAI) states: During operation in icing conditions, an asymmetric configuration of the de-icing boots was detected, occurring during the inflation and deflation check of the de-icing system. This was found to be due to an unexpected failure mode in the pneumatic and de-icing system’s control electronic logic. This condition, if not corrected, could affect the de-icing capabilities of the boots installed on the wing and horizontal PO 00000 Frm 00015 Fmt 4700 Sfmt 4700 43633 stabilizers, potentially leading to loss of control of the aircraft. To address and correct this unsafe condition, EADS–CASA developed modification 31558, approved by DGAC– Spain and incorporated into the Type Design Definition through the approval of CN–235– 300 version AE02, revision 14 of Spanish Type Certificate DGAC 01/86, dated 22 March 2002, and modification 31607, Minor Change approved by EADS–CASA under their DOA 21J.032 privileges, complementary to modification 31558. The entire modification package consists of an improvement of the de-icing boots electronic control system, making it capable of detecting all possible boot configurations on wings and horizontal stabilizers without affecting pneumatic system functions. The instructions for the in-service accomplishment of this modification have been published as CN–235 Service Bulletin (SB) 235–30–16 dated 21 January 2005. For the reasons described above, this EASA AD requires the modification of the De-Icing Boots control system in all aircraft that have not yet implemented the modification. Actions and Compliance (f) Unless already done, within six months after the effective date of this AD: Modify the aircraft de-icing boots control system in accordance with the Accomplishment Instructions of European Aeronautic Defense and Space Company (EADS) CASA Service Bulletin SB–235–30–16, dated January 21, 2005. FAA AD Differences Note 1: This AD differs from the MCAI and/or service information as follows: No differences. Other FAA AD Provisions (g) The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, International Branch, 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: Shahram Daneshmandi, Aerospace Engineer, International Branch, ANM–116, Transport Airplane Directorate, FAA, 1601 Lind Avenue, SW., Renton, Washington 98057– 3356; telephone (425) 227–1112; fax (425) 227–1149. 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. (2) Airworthy Product: For any requirement in this AD to obtain corrective actions from a manufacturer or other source, use these actions if they are FAA-approved. Corrective actions are considered FAAapproved if they are approved by the State of Design Authority (or their delegated agent). You are required to assure the product is airworthy before it is returned to service. (3) Reporting Requirements: For any reporting requirement in this AD, under the provisions of the Paperwork Reduction Act, E:\FR\FM\27AUR1.SGM 27AUR1 43634 Federal Register / Vol. 74, No. 165 / Thursday, August 27, 2009 / Rules and Regulations the Office of Management and Budget (OMB) has approved the information collection requirements and has assigned OMB Control Number 2120–0056. DEPARTMENT OF TRANSPORTATION Related Information 14 CFR Part 39 (h) Refer to MCAI European Aviation Safety Agency (EASA) Airworthiness Directive 2008–0118, dated June 27, 2008; and EADS CASA Service Bulletin SB–235– 30–16, dated January 21, 2005; for related information. [Docket No. FAA–2008–0174; Directorate Identifier 2008–NE–03–AD; Amendment 39– 15997; AD 2009–18–01] Material Incorporated by Reference (i) You must use EADS CASA Service Bulletin SB–235–30–16, dated January 21, 2005, 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 EADS–CASA, Military Transport Aircraft Division (MTAD), Integrated Customer Services (ICS), ´ Technical Services, Avenida de Aragon 404, 28022 Madrid, Spain; telephone +34 91 585 55 84; fax +34 91 585 55 05; e-mail MTA.TechnicalService@casa.eads.net; Internet https://www.eads.net. (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 or 425–227–1152. (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: https://www.archives.gov/federal_register/ code_of_federal_regulations/ ibr_locations.html. Issued in Renton, Washington, on August 17, 2009. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. E9–20581 Filed 8–26–09; 8:45 am] srobinson on DSKHWCL6B1PROD with RULES BILLING CODE 4910–13–P VerDate Nov<24>2008 16:19 Aug 26, 2009 Jkt 217001 Federal Aviation Administration RIN 2120–AA64 Airworthiness Directives; CFM International, S.A. CFM56–5B1/P; –5B2/ P; –5B3/P; –5B3/P1; –5B4/P; –5B4/P1; –5B5/P; –5B6/P; –5B7/P; –5B8/P; –5B9/ P; –5B1/3; –5B2/3; –5B3/3; –5B4/3; –5B5/3; –5B6/3; –5B7/3; –5B8/3; –5B9/ 3; –5B3/3B1; and –5B4/3B1 Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: The FAA is adopting a new airworthiness directive (AD) for CFM International, S.A. CFM56–5B1/P; –5B2/ P; –5B3/P; –5B3/P1; –5B4/P; –5B4/P1; –5B5/P; –5B6/P; –5B7/P; –5B8/P; –5B9/ P; –5B1/3; –5B2/3; –5B3/3; –5B4/3; –5B5/3; –5B6/3; –5B7/3; –5B8/3; –5B9/ 3; –5B3/3B1; and –5B4/3B1 turbofan engines. This AD requires initial and repetitive eddy current inspections (ECIs) of certain part number (P/N) lowpressure (LP) turbine rear frames. This AD results from a refined lifing analysis by the engine manufacturer that shows the need to identify initial and repetitive inspection thresholds for inspecting certain LP turbine rear frames. We are issuing this AD to detect low-cycle-fatigue cracks in the LP turbine rear frame, which could result in an engine separating from the airplane, causing damage to, and possibly leading to loss of control of the airplane. DATES: This AD becomes effective October 1, 2009. The Director of the Federal Register approved the incorporation by reference of certain publications listed in the regulations as of October 1, 2009. ADDRESSES: You can get the service information identified in this AD from CFM International, Technical Publications Department, 1 Neumann Way, Cincinnati, OH 45215; telephone (513) 552–2800; fax (513) 552–2816. The Docket Operations office is located at Docket Management Facility, U.S. Department of Transportation, 1200 New Jersey Avenue, SE., West Building Ground Floor, Room W12–140, Washington, DC 20590–0001. FOR FURTHER INFORMATION CONTACT: Stephen Sheely, Aerospace Engineer, Engine Certification Office, FAA, Engine PO 00000 Frm 00016 Fmt 4700 Sfmt 4700 and Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; e-mail: stephen.k.sheely@faa.gov; telephone (781) 238–7750; fax (781) 238–7199. The FAA proposed to amend 14 CFR part 39 with a proposed AD and a supplemental proposed AD. The proposed AD applies to CFM International, S.A. CFM56–5B1/ P; –5B2/P; –5B3/P; –5B3/P1; –5B4/P; –5B4/P1; –5B5/P; –5B6/P; –5B7/P; –5B8/P; and –5B9/P turbofan engines, and the supplemental proposed AD applies to CFM International, S.A. CFM56–5B1/P; –5B2/P; –5B3/P; –5B3/ P1; –5B4/P; –5B4/P1; –5B5/P; –5B6/P; –5B7/P; –5B8/P; –5B9/P; –5B1/3; –5B2/ 3; –5B3/3; –5B4/3; –5B5/3; –5B6/3; –5B7/3; –5B8/3; –5B9/3; –5B3/3B1; and –5B4/3B1 turbofan engines. We published the proposed AD in the Federal Register on May 7, 2008 (73 FR 25597). That action proposed to require initial and repetitive ECIs of certain P/N LP turbine rear frames. We published the supplemental proposed AD in the Federal Register on April 24, 2009 (74 FR 18662). That action proposed to require initial and repetitive ECIs of those same P/N LP turbine rear frames, to add two additional P/N LP turbine rear frames, to add 11 engine models to the applicability, and to clarify the commercial and corporate engines/LP turbine rear frames applicability. SUPPLEMENTARY INFORMATION: 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 AD, the regulatory evaluation, any comments received, and other information. The street address for the Docket Operations office (telephone (800) 647–5527) is provided in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. Comments We provided the public the opportunity to participate in the development of this AD. We have considered the comment received. One commenter, CFM International, S.A. requests that we reference the latest European Aviation Safety Agency AD 2009–0110, dated May 7, 2009, as it is up-to-date on P/Ns and engine models affected. We agree and changed the AD to reference AD 2009–0110. E:\FR\FM\27AUR1.SGM 27AUR1

Agencies

[Federal Register Volume 74, Number 165 (Thursday, August 27, 2009)]
[Rules and Regulations]
[Pages 43632-43634]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E9-20581]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2009-0386; Directorate Identifier 2008-NM-184-AD; 
Amendment 39-16002; AD 2009-18-06]
RIN 2120-AA64


Airworthiness Directives; Construcciones Aeronauticas, S.A. 
(CASA), Model CN-235, CN-235-100, CN-235-200, and CN-235-300 Airplanes

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

ACTION: Final rule.

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

SUMMARY: We are adopting a new airworthiness directive (AD) for the 
products listed above. This 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 operation in icing conditions, an asymmetric 
configuration of the de-icing boots was detected, occurring during 
the inflation and deflation check of the de-icing system. This was 
found to be due to an unexpected failure mode in the pneumatic and 
de-icing system's control electronic logic. This condition, if not 
corrected, could affect the de-icing capabilities of the boots 
installed on the wing and horizontal stabilizers, potentially 
leading to loss of control of the aircraft.
* * * * *
    We are issuing this AD to require actions to correct the unsafe 
condition on these products.

DATES: This AD becomes effective October 1, 2009.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in this AD as of October 1, 
2009.

ADDRESSES: You may examine the AD docket on the Internet at https://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: Shahram Daneshmandi, Aerospace 
Engineer, International Branch, ANM-116, Transport Airplane 
Directorate, FAA, 1601 Lind Avenue, SW., Renton, Washington 98057-3356; 
telephone (425) 227-1112; fax (425) 227-1149.

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 April 29, 2009 (74 
FR 19460). That NPRM proposed to correct an unsafe condition for the 
specified products. The MCAI states:

    During operation in icing conditions, an asymmetric 
configuration of the de-icing boots was detected, occurring during 
the inflation and deflation check of the de-icing system. This was 
found to be due to an unexpected failure mode in the pneumatic and 
de-icing system's control electronic logic. This condition, if not 
corrected, could affect the de-icing capabilities of the boots 
installed on the wing and horizontal stabilizers, potentially 
leading to loss of control of the aircraft.
    To address and correct this unsafe condition, EADS-CASA 
developed modification 31558, approved by DGAC-Spain and 
incorporated into the Type Design Definition through the approval of 
CN-235-300 version AE02, revision 14 of Spanish Type Certificate 
DGAC 01/86, dated 22 March 2002, and modification 31607, Minor 
Change approved by EADS-CASA under their DOA 21J.032 privileges, 
complementary to modification 31558. The entire modification package 
consists of an improvement of the de-icing boots electronic control 
system, making it capable of detecting all possible boot 
configurations on wings and horizontal stabilizers without affecting 
pneumatic system functions. The instructions for the in-service 
accomplishment of this modification have been published as CN-235 
Service Bulletin (SB) 235-30-16 dated 21 January 2005.
    For the reasons described above, this EASA AD requires the 
modification of the De-Icing Boots control system in all aircraft 
that have not yet implemented the modification.

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 received no comments on the NPRM or on the determination of 
the cost to the public.

Change to Parts Cost

    We have revised the parts cost to reflect the price of two kits 
from the manufacturer. The revised cost is less than the original cost 
presented in the NPRM.

Conclusion

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

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 required different actions in this AD from those 
in the MCAI in order to follow our FAA policies. Any such differences 
are highlighted in a NOTE within the AD.

Costs of Compliance

    We estimate that this AD will affect 8 products of U.S. registry. 
We also

[[Page 43633]]

estimate that it will take about 65 work-hours per product to comply 
with the basic requirements of this AD. The average labor rate is $80 
per work-hour. Required parts will cost about $7,383 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 
$100,664, or $12,583 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 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 the NPRM, 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

0
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:

2009-18-06 Construcciones Aeronauticas, S.A. (CASA): Amendment 39-
16002. Docket No. FAA-2009-0386; Directorate Identifier 2008-NM-184-
AD.

Effective Date

    (a) This airworthiness directive (AD) becomes effective October 
1, 2009.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to CASA Model CN-235, CN-235-100, CN-235-
200, and CN-235-300 airplanes, certificated in any category, all 
serial numbers up to, but not including, C-139.

Subject

    (d) Air Transport Association (ATA) of America Code 30: Ice and 
rain protection.

Reason

    (e) The mandatory continuing airworthiness information (MCAI) 
states:
    During operation in icing conditions, an asymmetric 
configuration of the de-icing boots was detected, occurring during 
the inflation and deflation check of the de-icing system. This was 
found to be due to an unexpected failure mode in the pneumatic and 
de-icing system's control electronic logic. This condition, if not 
corrected, could affect the de-icing capabilities of the boots 
installed on the wing and horizontal stabilizers, potentially 
leading to loss of control of the aircraft.
    To address and correct this unsafe condition, EADS-CASA 
developed modification 31558, approved by DGAC-Spain and 
incorporated into the Type Design Definition through the approval of 
CN-235-300 version AE02, revision 14 of Spanish Type Certificate 
DGAC 01/86, dated 22 March 2002, and modification 31607, Minor 
Change approved by EADS-CASA under their DOA 21J.032 privileges, 
complementary to modification 31558. The entire modification package 
consists of an improvement of the de-icing boots electronic control 
system, making it capable of detecting all possible boot 
configurations on wings and horizontal stabilizers without affecting 
pneumatic system functions. The instructions for the in-service 
accomplishment of this modification have been published as CN-235 
Service Bulletin (SB) 235-30-16 dated 21 January 2005.
    For the reasons described above, this EASA AD requires the 
modification of the De-Icing Boots control system in all aircraft 
that have not yet implemented the modification.

Actions and Compliance

    (f) Unless already done, within six months after the effective 
date of this AD: Modify the aircraft de-icing boots control system 
in accordance with the Accomplishment Instructions of European 
Aeronautic Defense and Space Company (EADS) CASA Service Bulletin 
SB-235-30-16, dated January 21, 2005.

FAA AD Differences

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

Other FAA AD Provisions

    (g) The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, 
International Branch, 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: Shahram Daneshmandi, Aerospace Engineer, 
International Branch, ANM-116, Transport Airplane Directorate, FAA, 
1601 Lind Avenue, SW., Renton, Washington 98057-3356; telephone 
(425) 227-1112; fax (425) 227-1149. 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.
    (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,

[[Page 43634]]

the Office of Management and Budget (OMB) has approved the 
information collection requirements and has assigned OMB Control 
Number 2120-0056.

Related Information

    (h) Refer to MCAI European Aviation Safety Agency (EASA) 
Airworthiness Directive 2008-0118, dated June 27, 2008; and EADS 
CASA Service Bulletin SB-235-30-16, dated January 21, 2005; for 
related information.

Material Incorporated by Reference

    (i) You must use EADS CASA Service Bulletin SB-235-30-16, dated 
January 21, 2005, 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 EADS-
CASA, Military Transport Aircraft Division (MTAD), Integrated 
Customer Services (ICS), Technical Services, Avenida de 
Arag[oacute]n 404, 28022 Madrid, Spain; telephone +34 91 585 55 84; 
fax +34 91 585 55 05; e-mail MTA.TechnicalService@casa.eads.net; 
Internet https://www.eads.net.
    (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 or 425-227-1152.
    (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: https://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.

    Issued in Renton, Washington, on August 17, 2009.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. E9-20581 Filed 8-26-09; 8:45 am]
BILLING CODE 4910-13-P
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