Airworthiness Directives; Bombardier, Inc. Airplanes, 16428-16430 [2012-6531]

Download as PDF 16428 * * Federal Register / Vol. 77, No. 55 / Wednesday, March 21, 2012 / Rules and Regulations * * * PART 760—LOANS IN AREAS HAVE SPECIAL FLOOD HAZARDS 3. The authority for citation part 760 continues to read as follows: ■ Authority: 12 U.S.C. 1757, 1789; 42 U.S.C 4012a, 4104, 4104b, 4106, and 4128. § 760.6 [Amended] 4. Section 760.6 is amended by removing from paragraph (a) ‘‘FEMA, P.O. Box 2012, Jessup, MD 20794–2012’’ and adding in its place ‘‘FEMA’s Web site at www.fema.gov’’. ■ PART 790—DESCRIPTION OF NCUA; REQUEST FOR AGENCY ACTION 5. The authority citation for part 790 continues to read as follows: ■ Authority: 12 U.S.C. 1766, 1789, 1795f. 6. In § 790.2: a. Revise paragraphs (b)(4), (b)(5), and (b)(13); ■ b. Remove from table in paragraph (c)(1) the address for Region No. II ‘‘1775 Duke Street, Suite 4206, Alexandria, VA 22314–3437’’ and add in its place ‘‘1900 Duke St., Suite 300, Alexandria, VA 22314–3498’’; and ■ c. Revise paragraph (c)(2). The revisions read as follows: ■ ■ § 790.2 Central and regional office organization. erowe on DSK2VPTVN1PROD with RULES * * * * * (b) * * * (4) Office of Chief Financial Officer. NCUA’s Chief Financial Officer is in charge of budgetary, accounting and financial matters for the NCUA, including responsibility for submitting annual budget and staffing requests for approval by the Board and, as required, by the Office of Management and Budget; for managing NCUA’s budgetary resources; for managing the operations of the National Credit Union Share Insurance Fund (NCUSIF) to include accounting, financial reporting and the collection and payment of capitalization deposits, insurance premiums and insurance dividends; for collecting annual operating fees from federal credit unions; for maintaining NCUA’s accounting system and accounting records; for processing payroll, travel, and accounts payable disbursements; and for preparing internal and external financial reports. The Chief Financial Officer is also responsible for providing NCUA’s executive offices and Regional Directors with administrative services, including: agency security; contracting and procurement; management of equipment and supplies; acquisition; VerDate Mar<15>2010 14:17 Mar 20, 2012 Jkt 226001 printing; graphics; and warehousing and distribution. (5) Office of Examination and Insurance. The Director of the Office of Examination and Insurance: formulates standards and procedures for examination and supervision of the community of federally insured credit unions, and reports to the Board on the performance of the examination program; manages the risk to the NCUSIF, to include overseeing the NCUSIF Investment Committee, monitoring the adequacy of NCUSIF reserves, analyzing the reasons for NCUSIF losses, formulating policies and procedures regarding the supervision of financially troubled credit unions, and evaluating certain requests for special assistance pursuant to Section 208 of the Federal Credit Union Act and for certain proposed administrative actions regarding federally insured credit unions; serves as the Board expert on accounting principles and standards and on auditing standards; represents NCUA at meetings with the American Institute of Certified Public Accountants (AICPA), Federal Financial Institutions Examination Council (FFIEC) and General Accounting Office (GAO); and collects data and provides statistical reports. The Director is responsible for developing and conducting research in support of NCUA programs, and for preparing reports on research activities for the information and use of agency staff, credit union officials, state credit union supervisory authorities, and other governmental and private groups. The Director is also responsible for providing interest rate risk assessment, investment expertise and advice to the Board and agency staff and conducting research and development to assess risk areas of emerging products, delivery systems, infrastructure issues, and investments. * * * * * (13) Office of Minority and Women Inclusion. The Office of Minority and Women Inclusion was established pursuant to the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010. It has the responsibility for all NCUA matters relating to diversity in management, employment, and business activities. Specific duties of the office include developing and implementing standards for: equal employment opportunity and the racial, ethnic, and gender diversity of the workforce and senior management of NCUA; increased participation of minority-owned and women-owned businesses in the programs and contracts of NCUA, including standards for coordinating technical assistance to such businesses; PO 00000 Frm 00004 Fmt 4700 Sfmt 4700 assessing the diversity policies and practices of credit unions regulated by NCUA; and preserving credit unions run by minorities and/or serving minorities. * * * * * (c) * * * (2) A Regional Director is in charge of each Regional Office. The Regional Director manages NCUA’s programs in the Region assigned in accordance with established policies. A Regional Director’s duties include: directing examination and supervision programs to promote and assure safety and soundness; assisting other offices in chartering and insurance issues; managing regional resources to meet program objectives in the most economical and practical manner; and maintaining good public relations with public, private, and governmental organizations, Federal credit union officials, credit union organizations, and other groups which have an interest in credit union matters in the assigned Region. The Regional Director maintains liaison and cooperation with other regional offices of Federal departments and agencies, state agencies, city and county officials, and other governmental units that affect credit unions. The Regional Director is aided by an Associate Regional Director for Operations and Associate Regional Director for Programs. Staff working in the Regional Office report to the Associate Regional Director for Operations. Each region is divided into examiner districts, each assigned to a Supervisory Credit Union Examiner; groups of examiners are directed by a Supervisory Credit Union Examiner, each of whom in turn reports directly to the Associate Regional Director for Programs. [FR Doc. 2012–6835 Filed 3–20–12; 8:45 am] BILLING CODE 7535–01–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2011–1088; Directorate Identifier 2011–NM–099–AD; Amendment 39–16985; AD 2012–06–04] RIN 2120–AA64 Airworthiness Directives; Bombardier, Inc. Airplanes Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final rule. AGENCY: E:\FR\FM\21MRR1.SGM 21MRR1 Federal Register / Vol. 77, No. 55 / Wednesday, March 21, 2012 / Rules and Regulations We are adopting a new airworthiness directive (AD) for certain Bombardier, Inc. Model DHC–8–400 series airplanes. This AD was prompted by reports of difficulties in opening the airstair door. This AD requires inspecting the structure and gearbox drain paths for blockages by sealant, and removing any blockages. We are issuing this AD to detect and correct drain paths blocked by sealant, resulting in an airstair door that is unable to be opened, which could hinder evacuation in the event of an emergency. DATES: This AD becomes effective April 25, 2012. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of April 25, 2012. 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: Cesar Gomez, Aerospace Engineer, Airframe and Mechanical Systems Branch, ANE–171, FAA, New York Aircraft Certification Office, 1600 Stewart Avenue, Suite 410, Westbury, New York 11590; telephone (516) 228– 7318; fax (516) 794–5531. SUPPLEMENTARY INFORMATION: SUMMARY: 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 October 19, 2011 (76 FR 64849), and proposed to correct an unsafe condition for the specified products. The MCAI states: erowe on DSK2VPTVN1PROD with RULES Several operators have reported difficulties in opening the airstair door. Investigation revealed that the airstair door gearbox drain paths were blocked by sealant, causing water to accumulate and freeze in the gearbox assembly. An airstair door that is unable to be opened could hinder evacuation in the event of an emergency. This [Canadian] directive mandates a onetime [general visual] inspection [for sealant blockages] and [removal of any] sealant interfering with the airstair gearbox drain paths. 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 comment received. The VerDate Mar<15>2010 14:17 Mar 20, 2012 Jkt 226001 commenter, Air Line Pilots Association, International, supports the NPRM (76 FR 64849, October 19, 2011). Conclusion We reviewed the available data, including the comment received, and determined that air safety and the public interest require adopting the AD as proposed, except for minor editorial changes. We have determined that these minor changes: • Are consistent with the intent that was proposed in the NPRM (76 FR 64849, October 19, 2011) for correcting the unsafe condition; and • Do not add any additional burden upon the public than was already proposed in the NPRM (76 FR 64849, October 19, 2011). Costs of Compliance We estimate that this AD will affect about 83 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. 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 $14,110, or $170 per product. In addition, we estimate that any necessary follow-on actions would take about 3 work-hours and require parts costing $0, for a cost of $255. We have no way of determining the number of products that may need these actions. 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. PO 00000 Frm 00005 Fmt 4700 Sfmt 4700 16429 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 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); 3. Will not affect intrastate aviation in Alaska; and 4. 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 (76 FR 64849, October 19, 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: ■ 2012–06–04 Bombardier, Inc.: Amendment 39–16985. Docket No. FAA–2011–1088; Directorate Identifier 2011–NM–099–AD. E:\FR\FM\21MRR1.SGM 21MRR1 16430 Federal Register / Vol. 77, No. 55 / Wednesday, March 21, 2012 / Rules and Regulations (a) Effective Date This airworthiness directive (AD) becomes effective April 25, 2012. (b) Affected ADs None. (c) Applicability This AD applies to Bombardier, Inc. Model DHC–8–400, –401, and –402 airplanes; certificated in any category; serial numbers 4161 through 4296 inclusive. (d) Subject Air Transport Association (ATA) of America Code 53: Fuselage. (e) Reason This AD was prompted by reports of difficulties in opening the airstair door. We are issuing this AD to detect and correct drain paths blocked by sealant, resulting in an airstair door that is unable to be opened, which could hinder evacuation in the event of an emergency. (f) Compliance You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. erowe on DSK2VPTVN1PROD with RULES (g) Actions Within 600 flight hours after the effective date of this AD, do a general visual inspection of the structure and gearbox drain paths for blockages by sealant, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 84–53–48, dated December 2, 2010. If any blockages are found, before further flight, remove blockages, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 84–53–48, dated December 2, 2010. (h) Other FAA AD Provisions 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 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 VerDate Mar<15>2010 14:17 Mar 20, 2012 Jkt 226001 to assure the product is airworthy before it is returned to service. (i) Related Information Refer to MCAI Canadian Airworthiness Directive CF–2011–06, dated April 26, 2011; and Bombardier Service Bulletin 84–53–48, dated December 2, 2010; for related information. (j) Material Incorporated by Reference (1) You must use the following service information to do the actions required by this AD, unless the AD specifies otherwise. The Director of the Federal Register approved the incorporation by reference (IBR) of the following service information under 5 U.S.C. 552(a) and 1 CFR part 51: (i) Bombardier Service Bulletin 84–53–48, dated December 2, 2010. (2) For service information identified in this 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; email thd.qseries@aero.bombardier.com; Internet https://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 an NARA facility, 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 March 9, 2012. Ali Bahrami Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2012–6531 Filed 3–20–12; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2012–1324; Directorate Identifier 2011–NM–104–AD; Amendment 39–16983; AD 2012–06–02] RIN 2120–AA64 Airworthiness Directives; Airbus Airplanes Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final rule. AGENCY: We are adopting a new airworthiness directive (AD) for all Airbus Model A300 B4–600, B4–600R, and F4–600R series airplanes, and SUMMARY: PO 00000 Frm 00006 Fmt 4700 Sfmt 4700 Model C4–605R Variant F airplanes (collectively called A300–600 series airplanes), and Model A310 series airplanes. This AD was prompted by a report of a crack in the selector valve pipe of the forward cargo door located in the avionics bay opposite the line replaceable unit racking. This AD requires replacing a certain aluminum high pressure pipe with a new corrosion resistant stainless steel pipe. We are issuing this AD to prevent cracking in the selector valve pipe of the forward cargo door which could impact the 90 VU avionics line replaceable unit, and could result in multiple computer failures, affecting flight safety. DATES: This AD becomes effective April 25, 2012. The Director of the Federal Register approved the incorporation by reference of certain publications listed in this AD as of April 25, 2012. 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: Dan Rodina, Aerospace Engineer, International Branch, ANM–116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, Washington 98057–3356; telephone (425) 227–2125; 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 December 22, 2011 (76 FR 79558). That NPRM proposed to require replacing a certain aluminum high pressure pipe with a new corrosion resistant stainless steel pipe. The MCAI states: An A300–600 operator has reported a hydraulic leak at the forward cargo door area. After further investigation, the forward cargo door selector valve pipe Part Number (P/N) A5231006100300, located in the avionics bay opposite to Line Replaceable Unit (LRU) racking, was found cracked. This condition, if not detected and corrected, can impact the 90 VU avionics LRU, which could result in multiple computer failures, affecting flight safety. For the reasons described above, this AD requires the replacement of the aluminum pipe P/N A5231006100300 with a stainless steel pipe P/N A5231007000600. This [EASA] AD has been corrected to make clear that the use of Airbus SB A310– E:\FR\FM\21MRR1.SGM 21MRR1

Agencies

[Federal Register Volume 77, Number 55 (Wednesday, March 21, 2012)]
[Rules and Regulations]
[Pages 16428-16430]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2012-6531]


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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2011-1088; Directorate Identifier 2011-NM-099-AD; 
Amendment 39-16985; AD 2012-06-04]
RIN 2120-AA64


Airworthiness Directives; Bombardier, Inc. Airplanes

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

ACTION: Final rule.

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

[[Page 16429]]

SUMMARY: We are adopting a new airworthiness directive (AD) for certain 
Bombardier, Inc. Model DHC-8-400 series airplanes. This AD was prompted 
by reports of difficulties in opening the airstair door. This AD 
requires inspecting the structure and gearbox drain paths for blockages 
by sealant, and removing any blockages. We are issuing this AD to 
detect and correct drain paths blocked by sealant, resulting in an 
airstair door that is unable to be opened, which could hinder 
evacuation in the event of an emergency.

DATES: This AD becomes effective April 25, 2012.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of April 25, 
2012.

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: Cesar Gomez, Aerospace Engineer, 
Airframe and Mechanical Systems Branch, ANE-171, FAA, New York Aircraft 
Certification Office, 1600 Stewart Avenue, Suite 410, Westbury, New 
York 11590; telephone (516) 228-7318; 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 October 19, 2011 (76 
FR 64849), and proposed to correct an unsafe condition for the 
specified products. The MCAI states:

    Several operators have reported difficulties in opening the 
airstair door. Investigation revealed that the airstair door gearbox 
drain paths were blocked by sealant, causing water to accumulate and 
freeze in the gearbox assembly. An airstair door that is unable to 
be opened could hinder evacuation in the event of an emergency.
    This [Canadian] directive mandates a one-time [general visual] 
inspection [for sealant blockages] and [removal of any] sealant 
interfering with the airstair gearbox drain paths.

    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 comment received. The commenter, Air Line 
Pilots Association, International, supports the NPRM (76 FR 64849, 
October 19, 2011).

Conclusion

    We reviewed the available data, including the comment received, and 
determined that air safety and the public interest require adopting the 
AD as proposed, except for minor editorial changes. We have determined 
that these minor changes:
     Are consistent with the intent that was proposed in the 
NPRM (76 FR 64849, October 19, 2011) for correcting the unsafe 
condition; and
     Do not add any additional burden upon the public than was 
already proposed in the NPRM (76 FR 64849, October 19, 2011).

Costs of Compliance

    We estimate that this AD will affect about 83 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. 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 $14,110, or $170 per 
product.
    In addition, we estimate that any necessary follow-on actions would 
take about 3 work-hours and require parts costing $0, for a cost of 
$255. We have no way of determining the number of products that may 
need these actions.

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 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);
    3. Will not affect intrastate aviation in Alaska; and
    4. 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 (76 FR 64849, October 19, 
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:

2012-06-04 Bombardier, Inc.: Amendment 39-16985. Docket No. FAA-
2011-1088; Directorate Identifier 2011-NM-099-AD.

[[Page 16430]]

(a) Effective Date

    This airworthiness directive (AD) becomes effective April 25, 
2012.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to Bombardier, Inc. Model DHC-8-400, -401, and -
402 airplanes; certificated in any category; serial numbers 4161 
through 4296 inclusive.

(d) Subject

    Air Transport Association (ATA) of America Code 53: Fuselage.

(e) Reason

    This AD was prompted by reports of difficulties in opening the 
airstair door. We are issuing this AD to detect and correct drain 
paths blocked by sealant, resulting in an airstair door that is 
unable to be opened, which could hinder evacuation in the event of 
an emergency.

(f) Compliance

    You are responsible for having the actions required by this AD 
performed within the compliance times specified, unless the actions 
have already been done.

(g) Actions

    Within 600 flight hours after the effective date of this AD, do 
a general visual inspection of the structure and gearbox drain paths 
for blockages by sealant, in accordance with the Accomplishment 
Instructions of Bombardier Service Bulletin 84-53-48, dated December 
2, 2010. If any blockages are found, before further flight, remove 
blockages, in accordance with the Accomplishment Instructions of 
Bombardier Service Bulletin 84-53-48, dated December 2, 2010.

(h) Other FAA AD Provisions

    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 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.

(i) Related Information

    Refer to MCAI Canadian Airworthiness Directive CF-2011-06, dated 
April 26, 2011; and Bombardier Service Bulletin 84-53-48, dated 
December 2, 2010; for related information.

(j) Material Incorporated by Reference

    (1) You must use the following service information to do the 
actions required by this AD, unless the AD specifies otherwise. The 
Director of the Federal Register approved the incorporation by 
reference (IBR) of the following service information under 5 U.S.C. 
552(a) and 1 CFR part 51:
    (i) Bombardier Service Bulletin 84-53-48, dated December 2, 
2010.
    (2) For service information identified in this 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; email thd.qseries@aero.bombardier.com; Internet 
https://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 an NARA facility, 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 March 9, 2012.
Ali Bahrami
Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2012-6531 Filed 3-20-12; 8:45 am]
BILLING CODE 4910-13-P
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