Airworthiness Directives; Viking Air Limited Model DHC-7 Airplanes, 36925-36927 [E7-13125]

Download as PDF 36925 Federal Register / Vol. 72, No. 129 / Friday, July 6, 2007 / Proposed Rules APPENDIX 1.—IMPLEMENTING FUEL TANK SYSTEM AIRWORTHINESS LIMITATIONS ON MODEL 737–600, –700, –700C –800, AND –900 SERIES AIRPLANES—Continued 28–AWL–22 ............................. CDCCL ........ BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2007–28619; Directorate Identifier 2007–NM–004–AD] RIN 2120–AA64 Airworthiness Directives; Viking Air Limited Model DHC–7 Airplanes Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Notice of proposed rulemaking (NPRM). rmajette on PROD1PC64 with PROPOSALS AGENCY: SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD) for all Viking Air Limited Model DHC–7 airplanes. This proposed AD would require an inspection of certain SM–200 servo drive units (power servo motor and housing assemblies) for certain markings, related investigative action if necessary, and modification if necessary. This proposed AD results from a report that some SM–200 servo drive units that were not in configuration MOD H are installed on Model DHC–7 airplanes. MOD H prevents the internal clutch fasteners from backing out. We are proposing this AD to prevent the possibility of internal clutch fasteners from backing out, which could cause an inadvertent servo engagement and consequent reduced controllability of the airplane. DATES: We must receive comments on this proposed AD by August 6, 2007. ADDRESSES: Use one of the following addresses to submit comments on this proposed AD. 15:25 Jul 05, 2007 Task title Install the Valve Adapter of the Spar Valve. Install the Actuator of the Engine Fuel Crossfeed Valve. Install the Engine Fuel Crossfeed Valve Adapter. ALI/CDCCL Issued in Renton, Washington, on June 22, 2007. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. E7–13116 Filed 7–5–07; 8:45 am] VerDate Aug<31>2005 ATA section or CMM document AMM 28–22–21/401 ............... AWL No. Jkt 211001 Task No. 28–22–11–400–805. 28–22–21–400–804. 28–22–21–400–805. CMM 28–20–21. • DOT Docket Web site: Go to https://dms.dot.gov and follow the instructions for sending your comments electronically. • Government-wide rulemaking Web site: Go to https://www.regulations.gov and follow the instructions for sending your comments electronically. • Mail: U.S. Department of Transportation, Docket Operations, M– 30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue, SE., Washington, DC 20590. • Fax: (202) 493–2251. • Hand Delivery: Room W12–140 on the ground floor of the West Building, 1200 New Jersey Avenue, SE., Washington, DC, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. Contact Viking Air Limited, 9574 Hampden Road, Sidney, British Columbia V8L 5V5, Canada, for service information identified in this proposed AD. FOR FURTHER INFORMATION CONTACT: Ezra Sasson, Aerospace Engineer, Airframe and Propulsion Branch, ANE–171, FAA, New York Aircraft Certification Office, 1600 Stewart Avenue, Suite 410, Westbury, New York 11590; telephone (516) 228–7320; fax (516) 794–5531. SUPPLEMENTARY INFORMATION: Comments Invited We invite you to submit any relevant written data, views, or arguments regarding this proposed AD. Send your comments to an address listed in the ADDRESSES section. Include the docket number ‘‘FAA–2007–28619; Directorate Identifier 2007–NM–004–AD’’ at the beginning of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of the proposed AD. We will consider all comments received by the closing date and may amend the proposed AD in light of those comments. We will post all comments we receive, without change, to https:// dms.dot.gov, including any personal information you provide. We will also PO 00000 Frm 00026 Fmt 4702 Sfmt 4702 post a report summarizing each substantive verbal contact with FAA personnel concerning this proposed AD. Using the search function of that Web site, anyone can find and read the comments in any of our dockets, including the name of the individual who sent the comment (or signed the comment on behalf of an association, business, labor union, etc.). You may review the DOT’s complete Privacy Act Statement in the Federal Register published on April 11, 2000 (65 FR 19477–78), or you may visit https:// dms.dot.gov. Examining the Docket You may examine the AD docket on the Internet at https://dms.dot.gov, or in person at the Docket Operations office between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The Docket Operations office (telephone (800) 647–5527) is located on the ground floor of the West Building at the street address stated in the ADDRESSES section. Comments will be available in the AD docket shortly after the Docket Management System receives them. Discussion Transport Canada Civil Aviation (TCCA), which is the airworthiness authority for Canada, notified us that an unsafe condition might exist on all Viking Air Limited Model DHC–7 airplanes. TCCA advises that investigation revealed that some SM– 200 servo drive units (power servo motor and housing assemblies) within certain date codes installed on the automatic flight control system of the de Havilland DHC–7 aircraft were mislabeled as having been manufactured to MOD H configuration when, in fact, they did not have MOD H installed. MOD H prevents the possibility of internal clutch fasteners from backing out. This condition, if not corrected, could result in the internal clutch fasteners backing out, which could cause an inadvertent servo engagement and consequent reduced controllability of the airplane. E:\FR\FM\06JYP1.SGM 06JYP1 36926 Federal Register / Vol. 72, No. 129 / Friday, July 6, 2007 / Proposed Rules Relevant Service Information Viking has issued Alert Service Bulletin 7–22–20, dated May 29, 2006. The alert service bulletin describes procedures for doing an inspection of the SM–200 power servo motor and housing assembly, part numbers 4006719–904, –913, and –933, to determine if MOD H is marked, related investigative action if necessary, and modification of the power servo motor and housing assembly if necessary. The related investigative action is an inspection for certain dates of power servo motor and housing assemblies that have been marked MOD H. Modifications are done if MOD H is not marked on the power servo motor and housing assembly and if power servo motor and housing assemblies that have been marked MOD H are within certain dates. Accomplishing the actions specified in the service information is intended to adequately address the unsafe condition. TCCA mandated the service information and issued Canadian airworthiness directive CF– 2006–18, dated July 17, 2006, to ensure the continued airworthiness of these airplanes in Canada. The alert service bulletin refers to Honeywell Alert Service Bulletin 4006719–22–A0016 (Pub. No. A21– 1146–008), Revision 001, dated November 1, 2004 as an additional source of service information for doing the inspection and modification. FAA’s Determination and Requirements of the Proposed AD provisions of section 21.29 of the Federal Aviation Regulations (14 CFR 21.29) and the applicable bilateral airworthiness agreement. Pursuant to this bilateral airworthiness agreement, TCCA has kept the FAA informed of the situation described above. We have examined TCCA’s findings, evaluated all pertinent information, and determined that we need to issue an AD for airplanes of this type design that are certificated for operation in the United States. Therefore, we are proposing this AD, which would require accomplishing the actions specified in the service information described previously. Costs of Compliance These airplanes are manufactured in Canada and are type certificated for operation in the United States under the The following table provides the estimated costs for U.S. operators to comply with this proposed AD. ESTIMATED COSTS Action Work hours Average labor rate per hour Cost per airplane Number of U.S.-registered airplanes Fleet cost Inspection ............................................................................. 1 $80 $80 21 $1,680 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. rmajette on PROD1PC64 with PROPOSALS Regulatory Findings We have determined that this proposed AD would not have federalism implications under Executive Order 13132. This proposed AD would not have a substantial direct effect on the States, on the relationship between the national Government and the States, or on the distribution of power and responsibilities among the various levels of government. VerDate Aug<31>2005 15:25 Jul 05, 2007 Jkt 211001 For the reasons discussed above, I certify that the proposed regulation: 1. Is not a ‘‘significant regulatory action’’ under Executive Order 12866; 2. Is not a ‘‘significant rule’’ under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant economic impact, positive or negative, on a substantial number of small entities under the criteria of the Regulatory Flexibility Act. We prepared a regulatory evaluation of the estimated costs to comply with this proposed AD and placed it in the AD docket. See the ADDRESSES section for a location to examine the regulatory evaluation. § 39.13 List of Subjects in 14 CFR Part 39 Unsafe Condition (d) This AD results from a report that some SM–200 servo drive units (power servo motor and housing assemblies) that were not in configuration MOD H are installed on Model DHC–7 airplanes. MOD H prevents the possibility of internal clutch fasteners from backing out. We are issuing this AD to prevent the internal clutch fasteners from backing out, which could cause an inadvertent servo engagement and consequent reduced controllability of the airplane. Air transportation, Aircraft, Aviation safety, Safety. The Proposed Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA proposes to amend 14 CFR part 39 as follows: PART 39—AIRWORTHINESS DIRECTIVES 1. The authority citation for part 39 continues to read as follows: PO 00000 Authority: 49 U.S.C. 106(g), 40113, 44701. Frm 00027 Fmt 4702 Sfmt 4702 [Amended] 2. The Federal Aviation Administration (FAA) amends § 39.13 by adding the following new airworthiness directive (AD): Viking Air Limited (Formerly Bombardier, Inc.): Docket No. FAA–2007–28619; Directorate Identifier 2007–NM–004–AD. Comments Due Date (a) The FAA must receive comments on this AD action by August 6, 2007. Affected ADs (b) None. Applicability (c) This AD applies to all Viking Air Limited Model DHC–7–1, DHC–7–100, DHC– 7–101, DHC–7–102, and DHC–7–103 airplanes, certificated in any category. Compliance (e) You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. E:\FR\FM\06JYP1.SGM 06JYP1 Federal Register / Vol. 72, No. 129 / Friday, July 6, 2007 / Proposed Rules Inspection and Modification (f) Within 12 months after the effective date of this AD: Inspect the SM–200 power servo motor and housing assembly, part numbers 4006719–904, –913 and –933, to determine if MOD H is marked, and before further flight, do all applicable related investigative action and modifications of the power servo motor and housing assembly, in accordance with the Accomplishment Instructions of Viking Alert Service Bulletin 7–22–20, dated May 29, 2006. Note 1: The alert service bulletin refers to Honeywell Alert Service Bulletin 4006719– 22–A0016 (Pub. No. A21–1146–008), Revision 001, dated November 1, 2004, as an additional source of service information for doing the inspection, related investigative action, and modifications. Alternative Methods of Compliance (AMOCs) (g)(1) The Manager, New York Aircraft Certification Office, FAA, has the authority to approve AMOCs for this AD, if requested in accordance with the procedures found in 14 CFR 39.19. (2) To request a different method of compliance or a different compliance time for this AD, follow the procedures in 14 CFR 39.19. Before using any approved AMOC on any airplane to which the AMOC applies, notify your appropriate principal inspector (PI) in the FAA Flight Standards District Office (FSDO), or lacking a PI, your local FSDO. Related Information (h) Canadian airworthiness directive CF– 2006–18, dated July 17, 2006, also addresses the subject of this AD. Issued in Renton, Washington, on June 25, 2007. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. E7–13125 Filed 7–5–07; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF THE TREASURY Internal Revenue Service 26 CFR Parts 1, 53, 54 and 301 [REG–142039–06; REG–139268–06] rmajette on PROD1PC64 with PROPOSALS RIN 1545–BG18; 1545–BG20 Excise Taxes on Prohibited Tax Shelter Transactions and Related Disclosure Requirements; Disclosure Requirements With Respect to Prohibited Tax Shelter Transactions; Requirement of Return and Time for Filing Internal Revenue Service (IRS), Treasury. ACTION: Notice of proposed rulemaking by reference to temporary regulations and notice of proposed rulemaking. AGENCY: VerDate Aug<31>2005 15:25 Jul 05, 2007 Jkt 211001 SUMMARY: This document contains proposed regulations that provide guidance under section 4965 of the Internal Revenue Code (Code), relating to entity-level and manager-level excise taxes with respect to prohibited tax shelter transactions to which tax-exempt entities are parties; §§ 6033(a)(2) and 6011(g), relating to certain disclosure obligations with respect to such transactions; and §§ 6011 and 6071, relating to the requirement of a return and time for filing with respect to section 4965 taxes. In the Rules and Regulations section of this issue of the Federal Register, the IRS is issuing cross-referencing temporary regulations that provide guidance under § 6033(a)(2), relating to certain disclosure obligations with respect to prohibited tax shelter transactions; and §§ 6011 and 6071, relating to the requirement of a return and time for filing with respect to § 4965 taxes. This action is necessary to implement § 516 of the Tax Increase Prevention Reconciliation Act of 2005. These proposed regulations affect a broad array of tax-exempt entities, including charities, state and local government entities, Indian tribal governments and employee benefit plans, as well as entity managers of these entities. DATES: Written or electronic comments and requests for a public hearing must be received by October 4, 2007. ADDRESSES: Send submissions to: CC:PA:LPD:PR (REG–142039–06; REG– 139268–06), room 5203, Internal Revenue Service, PO Box 7604, Ben Franklin Station, Washington, DC 20044. Submissions may be hand delivered Monday through Friday between the hours of 8 a.m. and 4 p.m. to: CC:PA:LPD:PR (REG–142039–06, REG–139268–06), Courier’s Desk, Internal Revenue Service, 1111 Constitution Avenue, NW., Washington, DC. Alternatively, taxpayers may submit comments electronically via the Federal eRulemaking Portal at https:// www.regulations.gov (IRS–REG– 142039–06; REG–139268–06). FOR FURTHER INFORMATION CONTACT: Concerning the regulations, Galina Kolomietz, (202) 622–6070 or Michael Blumenfeld, (202) 622–1124; concerning submission of comments and requests for a public hearing, Richard Hurst, Richard.A.Hurst@irscounsel.treas.gov (not toll-free numbers). For questions specifically relating to qualified pension plans, individual retirement accounts, and similar tax-favored savings arrangements, contact Dana Barry, (202) 622–6060 (not a toll-free number). SUPPLEMENTARY INFORMATION: PO 00000 Frm 00028 Fmt 4702 Sfmt 4702 36927 Paperwork Reduction Act An agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a valid control number assigned by the Office of Management and Budget. The collection of information in this proposed regulation is in § 301.6011(g)– 1. The collection of information in § 301.6011(g)–1 flows from section 6011(g) which requires a taxable party to a prohibited tax shelter transaction to disclose to any tax-exempt entity that is a party to the transaction that the transaction is a prohibited tax shelter transaction. The likely recordkeepers are taxable entities or individuals that participate in prohibited tax shelter transactions. Estimated number of recordkeepers: 1,250 to 6500. The information that is required to be collected for purposes of § 301.6011(g)– 1 is a subset of information that is required to be collected in order to complete and file Form 8886, ‘‘Reportable Transaction Disclosure Statement.’’ The estimated paperwork burden for taxpayers filling out Form 8886 is approved under OMB number 1545–1800 and is as follows: Recordkeeping .................... Learning about the law or the form. Preparing, copying, assembling, and sending the form to the IRS. 6 hr., 13 min. 4 hr., 28 min. 4 hr., 46 min. Based on the numbers in the preceding paragraph, the total estimated burden per recordkeeper complying with the disclosure requirement in § 301.6011(g)–1 will not exceed 15 hr., 27 min. This burden has been submitted to the Office of Management and Budget for review. Books and records relating to the collection of information must be retained as long as their contents may become material in the administration of any internal revenue law. Background The Tax Increase Prevention and Reconciliation Act of 2005, Public Law 109–222 (120 Stat. 345) (TIPRA), enacted on May 17, 2006, defines certain transactions as prohibited tax shelter transactions and imposes excise taxes and disclosure requirements with respect to prohibited tax shelter transactions to which a tax-exempt entity is a party. Section 516 of TIPRA creates new § 4965 and amends §§ 6033(a)(2) and 6011(g) of the Code. On July 11, 2006, the IRS released Notice 2006–65 (2006–31 IRB 102), which alerted taxpayers to the new provisions and solicited comments E:\FR\FM\06JYP1.SGM 06JYP1

Agencies

[Federal Register Volume 72, Number 129 (Friday, July 6, 2007)]
[Proposed Rules]
[Pages 36925-36927]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E7-13125]


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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2007-28619; Directorate Identifier 2007-NM-004-AD]
RIN 2120-AA64


Airworthiness Directives; Viking Air Limited Model DHC-7 
Airplanes

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

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD) 
for all Viking Air Limited Model DHC-7 airplanes. This proposed AD 
would require an inspection of certain SM-200 servo drive units (power 
servo motor and housing assemblies) for certain markings, related 
investigative action if necessary, and modification if necessary. This 
proposed AD results from a report that some SM-200 servo drive units 
that were not in configuration MOD H are installed on Model DHC-7 
airplanes. MOD H prevents the internal clutch fasteners from backing 
out. We are proposing this AD to prevent the possibility of internal 
clutch fasteners from backing out, which could cause an inadvertent 
servo engagement and consequent reduced controllability of the 
airplane.

DATES: We must receive comments on this proposed AD by August 6, 2007.

ADDRESSES: Use one of the following addresses to submit comments on 
this proposed AD.
     DOT Docket Web site: Go to https://dms.dot.gov and follow 
the instructions for sending your comments electronically.
     Government-wide rulemaking Web site: Go to https://
www.regulations.gov and follow the instructions for sending your 
comments electronically.
     Mail: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue, SE., Washington, DC 20590.
     Fax: (202) 493-2251.
     Hand Delivery: Room W12-140 on the ground floor of the 
West Building, 1200 New Jersey Avenue, SE., Washington, DC, between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
    Contact Viking Air Limited, 9574 Hampden Road, Sidney, British 
Columbia V8L 5V5, Canada, for service information identified in this 
proposed AD.

FOR FURTHER INFORMATION CONTACT: Ezra Sasson, Aerospace Engineer, 
Airframe and Propulsion Branch, ANE-171, FAA, New York Aircraft 
Certification Office, 1600 Stewart Avenue, Suite 410, Westbury, New 
York 11590; telephone (516) 228-7320; fax (516) 794-5531.

SUPPLEMENTARY INFORMATION:

Comments Invited

    We invite you to submit any relevant written data, views, or 
arguments regarding this proposed AD. Send your comments to an address 
listed in the ADDRESSES section. Include the docket number ``FAA-2007-
28619; Directorate Identifier 2007-NM-004-AD'' at the beginning of your 
comments. We specifically invite comments on the overall regulatory, 
economic, environmental, and energy aspects of the proposed AD. We will 
consider all comments received by the closing date and may amend the 
proposed AD in light of those comments.
    We will post all comments we receive, without change, to https://
dms.dot.gov, including any personal information you provide. We will 
also post a report summarizing each substantive verbal contact with FAA 
personnel concerning this proposed AD. Using the search function of 
that Web site, anyone can find and read the comments in any of our 
dockets, including the name of the individual who sent the comment (or 
signed the comment on behalf of an association, business, labor union, 
etc.). You may review the DOT's complete Privacy Act Statement in the 
Federal Register published on April 11, 2000 (65 FR 19477-78), or you 
may visit https://dms.dot.gov.

Examining the Docket

    You may examine the AD docket on the Internet at https://
dms.dot.gov, or in person at the Docket Operations office between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays. The 
Docket Operations office (telephone (800) 647-5527) is located on the 
ground floor of the West Building at the street address stated in the 
ADDRESSES section. Comments will be available in the AD docket shortly 
after the Docket Management System receives them.

Discussion

    Transport Canada Civil Aviation (TCCA), which is the airworthiness 
authority for Canada, notified us that an unsafe condition might exist 
on all Viking Air Limited Model DHC-7 airplanes. TCCA advises that 
investigation revealed that some SM-200 servo drive units (power servo 
motor and housing assemblies) within certain date codes installed on 
the automatic flight control system of the de Havilland DHC-7 aircraft 
were mislabeled as having been manufactured to MOD H configuration 
when, in fact, they did not have MOD H installed. MOD H prevents the 
possibility of internal clutch fasteners from backing out. This 
condition, if not corrected, could result in the internal clutch 
fasteners backing out, which could cause an inadvertent servo 
engagement and consequent reduced controllability of the airplane.

[[Page 36926]]

Relevant Service Information

    Viking has issued Alert Service Bulletin 7-22-20, dated May 29, 
2006. The alert service bulletin describes procedures for doing an 
inspection of the SM-200 power servo motor and housing assembly, part 
numbers 4006719-904, -913, and -933, to determine if MOD H is marked, 
related investigative action if necessary, and modification of the 
power servo motor and housing assembly if necessary. The related 
investigative action is an inspection for certain dates of power servo 
motor and housing assemblies that have been marked MOD H. Modifications 
are done if MOD H is not marked on the power servo motor and housing 
assembly and if power servo motor and housing assemblies that have been 
marked MOD H are within certain dates. Accomplishing the actions 
specified in the service information is intended to adequately address 
the unsafe condition. TCCA mandated the service information and issued 
Canadian airworthiness directive CF-2006-18, dated July 17, 2006, to 
ensure the continued airworthiness of these airplanes in Canada.
    The alert service bulletin refers to Honeywell Alert Service 
Bulletin 4006719-22-A0016 (Pub. No. A21-1146-008), Revision 001, dated 
November 1, 2004 as an additional source of service information for 
doing the inspection and modification.

FAA's Determination and Requirements of the Proposed AD

    These airplanes are manufactured in Canada and are type 
certificated for operation in the United States under the provisions of 
section 21.29 of the Federal Aviation Regulations (14 CFR 21.29) and 
the applicable bilateral airworthiness agreement. Pursuant to this 
bilateral airworthiness agreement, TCCA has kept the FAA informed of 
the situation described above. We have examined TCCA's findings, 
evaluated all pertinent information, and determined that we need to 
issue an AD for airplanes of this type design that are certificated for 
operation in the United States.
    Therefore, we are proposing this AD, which would require 
accomplishing the actions specified in the service information 
described previously.

Costs of Compliance

    The following table provides the estimated costs for U.S. operators 
to comply with this proposed AD.

                                                                     Estimated Costs
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                        Number of U.S.-
                               Action                                   Work hours     Average labor       Cost per        registered       Fleet cost
                                                                                       rate per hour       airplane        airplanes
--------------------------------------------------------------------------------------------------------------------------------------------------------
Inspection.........................................................               1              $80              $80               21           $1,680
--------------------------------------------------------------------------------------------------------------------------------------------------------

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 have determined that this proposed AD would not have federalism 
implications under Executive Order 13132. This proposed AD would not 
have a substantial direct effect on the States, on the relationship 
between the national Government and the States, or on the distribution 
of power and responsibilities among the various levels of government.
    For the reasons discussed above, I certify that the proposed 
regulation:
    1. Is not a ``significant regulatory action'' under Executive Order 
12866;
    2. Is not a ``significant rule'' under the DOT Regulatory Policies 
and Procedures (44 FR 11034, February 26, 1979); and
    3. Will not have a significant economic impact, positive or 
negative, on a substantial number of small entities under the criteria 
of the Regulatory Flexibility Act.
    We prepared a regulatory evaluation of the estimated costs to 
comply with this proposed AD and placed it in the AD docket. See the 
ADDRESSES section for a location to examine the regulatory evaluation.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Safety.

The Proposed Amendment

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

PART 39--AIRWORTHINESS DIRECTIVES

    1. The authority citation for part 39 continues to read as follows:

    Authority: 49 U.S.C. 106(g), 40113, 44701.


Sec.  39.13  [Amended]

    2. The Federal Aviation Administration (FAA) amends Sec.  39.13 by 
adding the following new airworthiness directive (AD):

Viking Air Limited (Formerly Bombardier, Inc.): Docket No. FAA-2007-
28619; Directorate Identifier 2007-NM-004-AD.

Comments Due Date

    (a) The FAA must receive comments on this AD action by August 6, 
2007.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to all Viking Air Limited Model DHC-7-1, 
DHC-7-100, DHC-7-101, DHC-7-102, and DHC-7-103 airplanes, 
certificated in any category.

Unsafe Condition

    (d) This AD results from a report that some SM-200 servo drive 
units (power servo motor and housing assemblies) that were not in 
configuration MOD H are installed on Model DHC-7 airplanes. MOD H 
prevents the possibility of internal clutch fasteners from backing 
out. We are issuing this AD to prevent the internal clutch fasteners 
from backing out, which could cause an inadvertent servo engagement 
and consequent reduced controllability of the airplane.

Compliance

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

[[Page 36927]]

Inspection and Modification

    (f) Within 12 months after the effective date of this AD: 
Inspect the SM-200 power servo motor and housing assembly, part 
numbers 4006719-904, -913 and -933, to determine if MOD H is marked, 
and before further flight, do all applicable related investigative 
action and modifications of the power servo motor and housing 
assembly, in accordance with the Accomplishment Instructions of 
Viking Alert Service Bulletin 7-22-20, dated May 29, 2006.

    Note 1: The alert service bulletin refers to Honeywell Alert 
Service Bulletin 4006719-22-A0016 (Pub. No. A21-1146-008), Revision 
001, dated November 1, 2004, as an additional source of service 
information for doing the inspection, related investigative action, 
and modifications.

Alternative Methods of Compliance (AMOCs)

    (g)(1) The Manager, New York Aircraft Certification Office, FAA, 
has the authority to approve AMOCs for this AD, if requested in 
accordance with the procedures found in 14 CFR 39.19.
    (2) To request a different method of compliance or a different 
compliance time for this AD, follow the procedures in 14 CFR 39.19. 
Before using any approved AMOC on any airplane to which the AMOC 
applies, notify your appropriate principal inspector (PI) in the FAA 
Flight Standards District Office (FSDO), or lacking a PI, your local 
FSDO.

Related Information

    (h) Canadian airworthiness directive CF-2006-18, dated July 17, 
2006, also addresses the subject of this AD.

    Issued in Renton, Washington, on June 25, 2007.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. E7-13125 Filed 7-5-07; 8:45 am]
BILLING CODE 4910-13-P
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