Airworthiness Directives; Pacific Aerospace Limited Model 750XL Airplanes, 36905-36907 [E7-13092]

Download as PDF Federal Register / Vol. 72, No. 129 / Friday, July 6, 2007 / Proposed Rules 36905 APPENDIX 1.—IMPLEMENTING FUEL TANK SYSTEM AIRWORTHINESS LIMITATIONS ON MODEL 727, 727C, 727–100, 727– 100C, 727–200, 727–200F SERIES AIRPLANES AWL No. ALI/CDCCL ATA section or CMM document Task title 28–AWL–01 ................. ALI .............................. AMM 28–11–00/601 ........................................ 28–AWL–02 ................. CDCCL ....................... SWPM 20–10–11 ............................................ 28–AWL–03 ................. CDCCL ....................... SWPM 20–10–11 ............................................ External Wires Over the Tank No. 2 Inspection. Wiring Assembly and Installation Configuration. Wiring Assembly and Installation Configuration. 28–AWL–04 ................. CDCCL ....................... 28–AWL–05 ................. CDCCL ....................... 28–AWL–06 ................. CDCCL ....................... CMM 28–41–01, Revision 12; CMM 28–41– 02, Revision 5; CMM 28–41–03, Revision 3; CMM 28–41–06, Revision 8; CMM 28– 41–07, Revision 17; CMM 28–41–08, Revision 9; CMM 28–41–09, Revision 8; CMM 28–41–23, Revision 10; or subsequent revisions. CMM 28–40–03, Revision 5; CMM 28–41–06, Revision 8; or subsequent revisions. SWPM 20–14–12 ............................................ AMM 28–41–21/401 28–AWL–07 ................. CDCCL ....................... AMM 29–11–53/401 ........................................ AMM 29–12–61/401 28–AWL–08 ................. 28–AWL–09 ................. CDCCL. CDCCL ....................... 28–AWL–10 ................. 28–AWL–11 ................. CDCCL ....................... CDCCL ....................... CMM 28–20–1, Revision 7; CMM 28–20–5, Revision 6; CMM 28–20–06, Revision 6; or subsequent revisions. AMM 28–22–21/401 ........................................ AMM 28–21–93/401 ........................................ AMM 28–21–93/401 28–AWL–12 ................. CDCCL ....................... AMM 28–11–21/401 ........................................ 28–AWL–13 ................. CDCCL ....................... AMM 28–11–21/401 ........................................ 28–AWL–14 ................. 28–AWL–15 ................. CDCCL ....................... CDCCL ....................... AMM 28–13–11/401 AMM 28–22–21/601 ........................................ AMM 28–22–00/101 ........................................ Issued in Renton, Washington, on June 22, 2007. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. E7–13115 Filed 7–5–07; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2007–28436; Directorate Identifier 2007–CE–055–AD] rmajette on PROD1PC64 with PROPOSALS RIN 2120–AA64 15:25 Jul 05, 2007 Jkt 211001 To prevent cracks developing in the aileron spar adjacent to the inboard hinge attachment * * * We must receive comments on this proposed AD by August 6, 2007. Install Fuel Boost Pump. Remove the Auxiliary Tank Fueling Float Switch. Install the Auxiliary Tank Fueling Float Switch. Removal/Installation Cast Fuel Tank Access Panels. Removal/Installation Machined Fuel Tank Access Panels. Install the Relief Valve. Fuel Boost Pump—Inspection/Check. Engine Fuel Feed System—Trouble Shooting. • DOT Docket Web Site: Go to https://dms.dot.gov and follow the instructions for sending your comments electronically. • Fax: (202) 493–2251. • Mail: U.S. Department of Transportation, Docket Operations, M– 30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue, SE., Washington, DC 20590. • Hand Delivery: U.S. Department of Transportation, Docket Operations, M– 30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue, SE., Washington, DC 20590, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. • Federal eRulemaking Portal: Go to https://www.regulations.gov. Follow the instructions for submitting comments. DATES: Federal Aviation Administration (FAA), Department of Transportation (DOT). VerDate Aug<31>2005 SUMMARY: We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as: The proposed AD would require actions that are intended to address the unsafe condition described in the MCAI. Airworthiness Directives; Pacific Aerospace Limited Model 750XL Airplanes AGENCY: Notice of proposed rulemaking (NPRM). ACTION: Repair of Fuel Quantity Indicator System (FQIS) Wire Harness. Remove/Install Fuel Tank Bulkhead (Spar) Receptacle Wire Harness. Install System A Hydraulic Fluid Heat Exchanger. Install System B Hydraulic Fluid Heat Exchanger. Examining the AD Docket You may send comments by any of the following methods: You may examine the AD docket on the Internet at https://dms.dot.gov; or in person at the Docket Management ADDRESSES: PO 00000 Frm 00006 Fmt 4702 Sfmt 4702 E:\FR\FM\06JYP1.SGM 06JYP1 36906 Federal Register / Vol. 72, No. 129 / Friday, July 6, 2007 / Proposed Rules Facility between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this proposed AD, the regulatory evaluation, any comments received, and other information. The street address for the Docket Office (telephone (800) 647– 5527) is in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: Karl Schletzbaum, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329–4146; fax: (816) 329–4090. SUPPLEMENTARY INFORMATION: Comments Invited We invite you to send any written relevant data, views, or arguments about this proposed AD. Send your comments to an address listed under the ADDRESSES section. Include ‘‘Docket No. FAA–2007–28436; Directorate Identifier 2007–CE–055–AD’’ at the beginning of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of this proposed AD. We will consider all comments received by the closing date and may amend this proposed AD because 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 we receive about this proposed AD. Discussion The Civil Aviation Authority of New Zealand, which is the aviation authority for New Zealand, has issued DCA/ 750XL/13, effective date April, 26, 2007 (referred to after this as ‘‘the MCAI’’), to correct an unsafe condition for the specified products. The MCAI states: rmajette on PROD1PC64 with PROPOSALS To prevent cracks developing in the aileron spar adjacent to the inboard hinge attachment accomplish the following: Remove both ailerons, inspect and modify the aileron spar at the inboard hinge attachment point in accordance with Pacific Aerospace Ltd Service Bulletin PACSB/XL/ 027. You may obtain further information by examining the MCAI in the AD docket. Relevant Service Information Pacific Aerospace Limited has issued Mandatory Service Bulletin PACSB/XL/ 027, dated March 27, 2007. The actions described in this service information are intended to correct the unsafe condition identified in the MCAI. VerDate Aug<31>2005 15:41 Jul 05, 2007 Jkt 211001 FAA’s Determination and Requirements of the Proposed AD This product has been approved by the aviation authority of another country, and is approved for operation in the United States. Pursuant to our bilateral agreement with this State of Design Authority, they have notified us of the unsafe condition described in the MCAI and service information referenced above. We are proposing this AD because we evaluated all information and determined the unsafe condition exists and is likely to exist or develop on other products of the same type design. 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. Differences Between This Proposed AD and the MCAI or Service Information We have reviewed the MCAI and related service information and, in general, agree with their substance. But we might have found it necessary to use different words from those in the MCAI to ensure the AD is clear for U.S. operators and is enforceable. In making these changes, we do not intend to differ substantively from the information provided in the MCAI and related service information. We might also have proposed different actions in this AD from those in the MCAI in order to follow FAA policies. Any such differences are highlighted in a NOTE within the proposed AD. We determined that this proposed AD would not have federalism implications under Executive Order 13132. This proposed AD would not have a substantial direct effect on the States, on the relationship between the national Government and the States, or on the distribution of power and responsibilities among the various levels of government. For the reasons discussed above, I certify this proposed regulation: 1. Is not a ‘‘significant regulatory action’’ under Executive Order 12866; 2. Is not a ‘‘significant rule’’ under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and 3. Will not have a significant economic impact, positive or negative, on a substantial number of small entities under the criteria of the Regulatory Flexibility Act. We prepared a regulatory evaluation of the estimated costs to comply with this proposed AD and placed it in the AD docket. Costs of Compliance Based on the service information, we estimate that this proposed AD would affect about 7 products of U.S. registry. We also estimate that it would take about 6 work-hours per product to comply with the basic requirements of this proposed AD. The average labor rate is $80 per work-hour. Required parts would cost about $864 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 costs. 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 the proposed AD on U.S. operators to be $9,408, or $1,344 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. PO 00000 Frm 00007 Fmt 4702 Sfmt 4702 Regulatory Findings 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. § 39.13 [Amended] 2. The FAA amends § 39.13 by adding the following new AD: Pacific Aerospace Limited: Docket No. FAA– 2007–28436; Directorate Identifier 2007– CE–055–AD. E:\FR\FM\06JYP1.SGM 06JYP1 Federal Register / Vol. 72, No. 129 / Friday, July 6, 2007 / Proposed Rules Comments Due Date (a) We must receive comments by August 6, 2007. Affected ADs (b) None. Applicability (c) This AD applies to 750XL airplanes, serial numbers 101, 102, 104 through 120, and 122 through 129, certificated in any category. Subject (d) Air Transport Association of America (ATA) Code 27: Flight Controls. Reason (e) The mandatory continuing airworthiness information (MCAI) states: To prevent cracks developing in the aileron spar adjacent to the inboard hinge attachment accomplish the following: Remove both ailerons, inspect and modify the aileron spar at the inboard hinge attachment point in accordance with Pacific Aerospace Ltd Service Bulletin PACSB/XL/ 027. Actions and Compliance (f) Unless already done, within the next 6 months after the effective date of this AD or 150 hours time-in-service (TIS) after the effective date of this AD, whichever occurs first, rework the left and right ailerons in accordance with Pacific Aerospace Ltd drawing number 11–03141/42, drawn March 26, 2007, as specified in Pacific Aerospace Limited Mandatory Service Bulletin PACSB/ XL/027, dated March 27, 2007. (44 U.S.C. 3501 et seq.), 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 Civil Aviation Authority of New Zealand AD DCA/750XL/13, effective date April 26, 2007; Pacific Aerospace Limited Mandatory Service Bulletin PACSB/ XL/027, dated March 27, 2007; and Pacific Aerospace Ltd drawing number 11–03141/42, drawn March 26, 2007, for related information. Issued in Kansas City, Missouri, on June 29, 2007. Kim Smith, Manager, Small Airplane Directorate, Aircraft Certification Service. [FR Doc. E7–13092 Filed 7–5–07; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2007–28383; Directorate Identifier 2006–NM–180–AD] RIN 2120–AA64 Airworthiness Directives; Boeing Model 737–100, –200, –200C, –300, –400, and –500 Series Airplanes Note: This AD differs from the MCAI and/ or service information as follows: No differences. Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Notice of proposed rulemaking (NPRM). Other FAA AD Provisions (g) The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, Standards Staff, 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: Karl Schletzbaum, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329–4146; fax: (816) 329–4090. 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. (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 SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD) for all Boeing Model 737–100, –200, –200C, –300, –400, and –500 series airplanes. This proposed AD would require revising the FAA-approved maintenance program to incorporate new airworthiness limitations (AWLs) for fuel tank systems to satisfy Special Federal Aviation Regulation No. 88 requirements. This proposed AD would also require the initial inspection of a certain repetitive AWL inspection to phase in that inspection, and repair if necessary. This proposed AD results from a design review of the fuel tank systems. We are proposing this AD to prevent the potential for ignition sources inside fuel tanks caused by latent failures, alterations, repairs, or maintenance actions, which, in combination with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of the airplane. DATES: We must receive comments on this proposed AD by August 20, 2007. rmajette on PROD1PC64 with PROPOSALS FAA AD Differences VerDate Aug<31>2005 15:25 Jul 05, 2007 Jkt 211001 AGENCY: PO 00000 Frm 00008 Fmt 4702 Sfmt 4702 36907 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 Boeing Commercial Airplanes, P.O. Box 3707, Seattle, Washington 98124–2207, for the service information identified in this proposed AD. FOR FURTHER INFORMATION CONTACT: Kathrine Rask, Aerospace Engineer, Propulsion Branch, ANM–140S, FAA, Seattle Aircraft Certification Office, 1601 Lind Ave., SW., Renton, Washington 98057–3356; telephone (425) 917–6505; fax (425) 917–6590. SUPPLEMENTARY INFORMATION: ADDRESSES: 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–2007–28383; Directorate Identifier 2006–NM–180–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 DOT’s complete Privacy Act E:\FR\FM\06JYP1.SGM 06JYP1

Agencies

[Federal Register Volume 72, Number 129 (Friday, July 6, 2007)]
[Proposed Rules]
[Pages 36905-36907]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E7-13092]


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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2007-28436; Directorate Identifier 2007-CE-055-AD]
RIN 2120-AA64


Airworthiness Directives; Pacific Aerospace Limited Model 750XL 
Airplanes

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

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: We propose to adopt a new airworthiness directive (AD) for the 
products listed above. This proposed AD results from mandatory 
continuing airworthiness information (MCAI) originated by an aviation 
authority of another country to identify and correct an unsafe 
condition on an aviation product. The MCAI describes the unsafe 
condition as:


    To prevent cracks developing in the aileron spar adjacent to the 
inboard hinge attachment * * *

The proposed AD would require actions that are intended to address the 
unsafe condition described in the MCAI.

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

ADDRESSES: You may send comments by any of the following methods:
     DOT Docket Web Site: Go to https://dms.dot.gov and follow 
the instructions for sending your comments electronically.
     Fax: (202) 493-2251.
     Mail: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue, SE., Washington, DC 20590.
     Hand Delivery: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue, SE., Washington, DC 20590, between 9 a.m. and 5 p.m., 
Monday through Friday, except Federal holidays.
     Federal eRulemaking Portal: Go to https://
www.regulations.gov. Follow the instructions for submitting comments.

Examining the AD Docket

    You may examine the AD docket on the Internet at https://
dms.dot.gov; or in person at the Docket Management

[[Page 36906]]

Facility between 9 a.m. and 5 p.m., Monday through Friday, except 
Federal holidays. The AD docket contains this proposed AD, the 
regulatory evaluation, any comments received, and other information. 
The street address for the Docket Office (telephone (800) 647-5527) is 
in the ADDRESSES section. Comments will be available in the AD docket 
shortly after receipt.

FOR FURTHER INFORMATION CONTACT: Karl Schletzbaum, Aerospace Engineer, 
FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, 
Missouri 64106; telephone: (816) 329-4146; fax: (816) 329-4090.

SUPPLEMENTARY INFORMATION: 

Comments Invited

    We invite you to send any written relevant data, views, or 
arguments about this proposed AD. Send your comments to an address 
listed under the ADDRESSES section. Include ``Docket No. FAA-2007-
28436; Directorate Identifier 2007-CE-055-AD'' at the beginning of your 
comments. We specifically invite comments on the overall regulatory, 
economic, environmental, and energy aspects of this proposed AD. We 
will consider all comments received by the closing date and may amend 
this proposed AD because 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 we 
receive about this proposed AD.

Discussion

    The Civil Aviation Authority of New Zealand, which is the aviation 
authority for New Zealand, has issued DCA/750XL/13, effective date 
April, 26, 2007 (referred to after this as ``the MCAI''), to correct an 
unsafe condition for the specified products. The MCAI states:

    To prevent cracks developing in the aileron spar adjacent to the 
inboard hinge attachment accomplish the following:
    Remove both ailerons, inspect and modify the aileron spar at the 
inboard hinge attachment point in accordance with Pacific Aerospace 
Ltd Service Bulletin PACSB/XL/027.
    You may obtain further information by examining the MCAI in the 
AD docket.

Relevant Service Information

    Pacific Aerospace Limited has issued Mandatory Service Bulletin 
PACSB/XL/027, dated March 27, 2007. The actions described in this 
service information are intended to correct the unsafe condition 
identified in the MCAI.

FAA's Determination and Requirements of the Proposed AD

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

Differences Between This Proposed AD and the MCAI or Service 
Information

    We have reviewed the MCAI and related service information and, in 
general, agree with their substance. But we might have found it 
necessary to use different words from those in the MCAI to ensure the 
AD is clear for U.S. operators and is enforceable. In making these 
changes, we do not intend to differ substantively from the information 
provided in the MCAI and related service information.
    We might also have proposed different actions in this AD from those 
in the MCAI in order to follow FAA policies. Any such differences are 
highlighted in a NOTE within the proposed AD.

Costs of Compliance

    Based on the service information, we estimate that this proposed AD 
would affect about 7 products of U.S. registry. We also estimate that 
it would take about 6 work-hours per product to comply with the basic 
requirements of this proposed AD. The average labor rate is $80 per 
work-hour. Required parts would cost about $864 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 costs. 
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 the proposed AD on 
U.S. operators to be $9,408, or $1,344 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 proposed AD would not have federalism 
implications under Executive Order 13132. This proposed AD would not 
have a substantial direct effect on the States, on the relationship 
between the national Government and the States, or on the distribution 
of power and responsibilities among the various levels of government.
    For the reasons discussed above, I certify this proposed 
regulation:
    1. Is not a ``significant regulatory action'' under Executive Order 
12866;
    2. Is not a ``significant rule'' under the DOT Regulatory Policies 
and Procedures (44 FR 11034, February 26, 1979); and
    3. Will not have a significant economic impact, positive or 
negative, on a substantial number of small entities under the criteria 
of the Regulatory Flexibility Act.
    We prepared a regulatory evaluation of the estimated costs to 
comply with this proposed AD and placed it in the AD docket.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Safety.

The Proposed Amendment

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

PART 39--AIRWORTHINESS DIRECTIVES

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

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


Sec.  39.13  [Amended]

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

Pacific Aerospace Limited: Docket No. FAA-2007-28436; Directorate 
Identifier 2007-CE-055-AD.

[[Page 36907]]

Comments Due Date

    (a) We must receive comments by August 6, 2007.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to 750XL airplanes, serial numbers 101, 102, 
104 through 120, and 122 through 129, certificated in any category.

Subject

    (d) Air Transport Association of America (ATA) Code 27: Flight 
Controls.

Reason

    (e) The mandatory continuing airworthiness information (MCAI) 
states:
    To prevent cracks developing in the aileron spar adjacent to the 
inboard hinge attachment accomplish the following:
    Remove both ailerons, inspect and modify the aileron spar at the 
inboard hinge attachment point in accordance with Pacific Aerospace 
Ltd Service Bulletin PACSB/XL/027.

Actions and Compliance

    (f) Unless already done, within the next 6 months after the 
effective date of this AD or 150 hours time-in-service (TIS) after 
the effective date of this AD, whichever occurs first, rework the 
left and right ailerons in accordance with Pacific Aerospace Ltd 
drawing number 11-03141/42, drawn March 26, 2007, as specified in 
Pacific Aerospace Limited Mandatory Service Bulletin PACSB/XL/027, 
dated March 27, 2007.

FAA AD Differences

    Note: 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, 
Standards Staff, 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: Karl Schletzbaum, Aerospace Engineer, FAA, 
Small Airplane Directorate, 901 Locust, Room 301, Kansas City, 
Missouri 64106; telephone: (816) 329-4146; fax: (816) 329-4090. 
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.
    (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 (44 
U.S.C. 3501 et seq.), 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 Civil Aviation Authority of New Zealand AD 
DCA/750XL/13, effective date April 26, 2007; Pacific Aerospace 
Limited Mandatory Service Bulletin PACSB/XL/027, dated March 27, 
2007; and Pacific Aerospace Ltd drawing number 11-03141/42, drawn 
March 26, 2007, for related information.

    Issued in Kansas City, Missouri, on June 29, 2007.
Kim Smith,
Manager, Small Airplane Directorate, Aircraft Certification Service.
[FR Doc. E7-13092 Filed 7-5-07; 8:45 am]
BILLING CODE 4910-13-P
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