Unknown. Final rule

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A research copy — for the controlling text, always check the official state or federal source. Not legal advice.

--- schema: federal-register doc_type: fedreg source_file: FR-2006-06-12.xml --- 71 112 Monday, June 12, 2006 Contents Agriculture Agriculture Department See Forest Service Antitrust Antitrust Modernization Commission NOTICES Meetings, 33723-33724 E6-9076 Army Army Department See Engineers Corps Arts Arts and Humanities, National Foundation See National Foundation on the Arts and the Humanities Children Children and Families Administration NOTICES Agency information collection activities; proposals, submissions, and approvals, 33765 06-5291 Coast Guard Coast Guard RULES Ports and waterways safety; regulated navigation areas, safety zones, security zones, etc.:

Lake Michigan, Milwaukee, WI, 33622 E6-9131 Commerce Commerce Department See Economic Analysis Bureau See Industry and Security Bureau See International Trade Administration See National Oceanic and Atmospheric Administration Defense Defense Department See Defense Logistics Agency See Engineers Corps Defense Defense Logistics Agency NOTICES Privacy Act; systems of records, 33728-33729 06-5290 Economic Economic Analysis Bureau NOTICES Reports and guidance documents; availability, etc.:

Data sharing activity; access and confidentiality protection, 33724 E6-9074 Energy Energy Department See Federal Energy Regulatory Commission Engineers Engineers Corps NOTICES Meetings: North Dakota River Task Force, 33729-33730 06-5275 EPA Environmental Protection Agency RULES Air quality implementation plans; approval and promulgation; various States: Indiana, 33625-33628 06-5252 Missouri, 33622-33625 06-5250 Organization, functions, and authority delegations: Pollution Prevention and Toxics Office; mailing address change; technical amendments, 33640-33642 E6-9078 Water pollution control:

National Pollutant Discharge Elimination System— Storm water discharges for oil and gas exploration, production, processing, or treatment operations, or transmission facilities, 33628-33640 E6-9079 PROPOSED RULES Air pollution; standards of performance for new stationary sources; and air pollutants, hazardous; national emission standards: Stationary spark ignition internal combustion engines and reciprocating internal combustion engines, 33804-33855 06-4919 Air quality implementation plans; approval and promulgation; various States:

Indiana, 33668-33669 06-5251 Missouri, 33668 06-5249 Virginia, 33669-33672 E6-9081 NOTICES Meetings: Human Studies Review Board, 33747 E6-9082 National ambient air quality standards setting; process review; workshop to consider report, 33747-33749 E6-9043 Water supply: Public water system supervision program— Ohio, 33749-33750 E6-9080 Executive Executive Office of the President See Presidential Documents FAA Federal Aviation Administration RULES Airworthiness directives: Airbus, 33600-33602 06-5124 BAE Systems (Operations) Ltd., 33602-33604 06-5206 Boeing, 06-5205 33595-33598, 33604-33605, 33608-33614 06-5207 06-5209 06-5210 Bombardier; correction, 33614 06-5246 Eurocopter France, 33598-33600 06-5241 Goodrich, 33606-33607 06-5208 PROPOSED RULES Airworthiness directives:

Airbus, E6-9061 33658-33663 E6-9062 McDonnell Douglas, 33663-33665 E6-9063 Class E airspace, 33665-33668 06-5306 06-5307 06-5308 NOTICES Advisory circulars; availability, etc.: Aircraft Certification Service advisory circulars, policy documents, and technical standard orders, 33799 06-5302 Agency information collection activities; proposals, submissions, and approvals, 06-5304 33799-33800 06-5305 Meetings: Air Traffic Procedures Advisory Committee, 33800 06-5303 Federal Emergency Federal Emergency Management Agency RULES Flood elevation determinations:

American Samoa, 33645-33646 E6-9129 Georgia, 33644-33645 E6-9128 Various States, 33646-33657 E6-9127 Flood insurance; communities eligible for sale: Virginia and North Carolina, 33642-33644 E6-9051 PROPOSED RULES Flood elevation determinations: Massachusetts and North Carolina, 33702-33703 E6-9130 Various States, 33672-33702 06-5309 NOTICES Disaster and emergency areas: Maine, 33765-33766 E6-9055 Massachusetts, 33766 E6-9054 New Hampshire, 33767 E6-9053 E6-9056 Washington, 33767-33768 E6-9052 Federal Energy Federal Energy Regulatory Commission NOTICES Electric rate and corporate regulation combined filings, 33741-33742 E6-9084 Hydroelectric applications, 33742-33746 E6-9088 E6-9089 E6-9100 Meetings:

Market and reliability matters; discussions with utility and railroad representatives, 33746 E6-9107 Southwest Power Pool Board of Directors/Members Committee, 33746-33747 E6-9097 Public Utility Holding Company Act of 2005; implementation: Financial accounting, reporting, and records retention requirements; technical conference Correction, 33747 E6-9086 *Applications, hearings, determinations, etc.:* Alliance Pipeline L.P., 33730 E6-9101 Aragonne Wind LLC, 33730 E6-9095 Colorado Interstate Gas Co., 33730-33731 E6-9090 E6-9114 Discovery Gas Transmission LLC, 33731 E6-9110 Dominion Transmission, Inc., 33731-33732 E6-9118 Duke Power Co.

LLC, 33732 E6-9096 El Paso Natural Gas Co., E6-9085 33732-33733 E6-9091 Enbridge Pipelines (KPC), 33733 E6-9121 Gas Transmission Northwest Corp., 33733-33734 E6-9108 Great Lakes Gas Transmission L.P., 33734 E6-9094 Gulfstream Natural Gas System, L.L.C., 33734 E6-9102 Kinder Morgan Interstate Gas Transmission LLC, 33734-33735 E6-9119 Maritimes & Northeast Pipeline, L.L.C., 33735 E6-9104 National Fuel Gas Supply Corp., 33735-33736 E6-9113 Northern Natural Gas Co., 33736 E6-9116 Pine Prairie Energy Center, LLC, 33736-33737 E6-9093 Questar Southern Trails Pipeline Co., 33737 E6-9109 Rockies Express Pipeline LLC, 33737 E6-9105 Saltville Gas Storage Co.

L.L.C., 33737-33738 E6-9092 Stingray Pipeline Co., L.L.C., 33738 E6-9106 Tennessee Gas Pipeline Co., 33738 E6-9115 Texas Eastern Transmission, LP, 33738-33739 E6-9111 TransColorado Gas Transmission Co., 33739 E6-9120 Transcontinental Gas Pipe Line Corp., 33739 E6-9117 Tuscarora Gas Transmission Co., 33739-33740 E6-9112 Western Area Power Administration, 33740 E6-9087 Williston Basin Interstate Pipeline Co., 33740-33741 E6-9103 Federal Highway Federal Highway Administration NOTICES Environmental statements; notice of intent:

Dane County, WI, 33800-33801 E6-9064 Federal Housing Federal Housing Finance Board NOTICES Meetings; Sunshine Act, 33750 06-5318 Federal Motor Federal Motor Carrier Safety Administration NOTICES Meetings; Sunshine Act, 33801 06-5316 Federal Reserve Federal Reserve System NOTICES Agency information collection activities; proposals, submissions, and approvals, 33750-33751 E6-9075 Banks and bank holding companies: Formations, acquisitions, and mergers, 33751 E6-9069 Federal Open Market Committee:

Domestic policy directives, 33751 E6-9047 Fish Fish and Wildlife Service PROPOSED RULES Endangered and threatened species: Critical habitat designations— Piping plover; wintering population, 33703-33721 06-5192 NOTICES Endangered and threatened species: Incidental take permits— Monterey County, CA; Smith's blue butterfly and California red-legged frog, 33770-33772 E6-9066 Endangered and threatened species permit applications, determinations, etc., 33769-33770 E6-9048 E6-9049 Environmental statements; notice of intent:

Red Rock Lakes National Wildlife Refuge, MT; comprehensive conservation plan, 33772-33773 E6-9068 Forest Forest Service NOTICES Meetings: California Coast Provincial Advisory Committee, 33723 06-5289 Resource Advisory Committees— South Gifford Pinchot National Forest, 33723 06-5212 Health Health and Human Services Department See Children and Families Administration NOTICES Grant and cooperative agreement awards: Morehouse School of Medicine, 33751-33752 E6-9036 Grants and cooperative agreements; availability, etc.:

Medical Reserve Corps Program, 33753-33759 E6-9035 United States-Mexico Foundation for Science, 33759-33764 E6-9070 Meetings: American Health Information Community, 33764 06-5279 Vital and Health Statistics National Committee, 33764-33765 06-5280 Homeland Homeland Security Department See Coast Guard See Federal Emergency Management Agency Housing Housing and Urban Development Department NOTICES Agency information collection activities; proposals, submissions, and approvals, 33768-33769 E6-9122 E6-9123 Industry Industry and Security Bureau RULES Export administration regulations:

Commerce Control List— Biological agents and toxins controls expansion; medical products containing AG-controlled toxins clarification; Chemical Weapons Convention list update, 33614-33622 E6-8995 NOTICES Export privileges, actions affecting: Edsons Worldwide Services, Inc., 33724-33725 06-5283 Yamnik, Eduard Mendelevich, 33725-33726 06-5282 Interior Interior Department See Fish and Wildlife Service See Land Management Bureau See National Indian Gaming Commission International International Trade Administration NOTICES Antidumping:

Circular welded carbon steel pipes and tubes from— Thailand, 33726-33727 E6-9124 Softwood lumber products from— Canada, 33964-33988 06-5222 Countervailing duties: Softwood lumber products from— Canada, 33932-33961 06-5221 International International Trade Commission NOTICES Organization, functions, and authority delegations: Law Library; revised access, 33774-33775 E6-9206 Land Land Management Bureau NOTICES Alaska Native claims selection: Ohog Inc., 33773 E6-9037 Oil and gas leases:

Montana, 33773 E6-9041 Public land orders: Arizona, 33773-33774 E6-9042 Realty actions; sales, leases, etc.: Nevada, 33774 E6-9038 National Archives National Archives and Records Administration NOTICES Meetings: Records of Congress Advisory Committee, 33775 E6-9149 National Foundation National Foundation on the Arts and the Humanities NOTICES Meetings: Arts Advisory Panel, 33775 E6-9045 National Indian National Indian Gaming Commission PROPOSED RULES Indian Gaming Regulatory Act:

Electronic or electromechanical facsimiles of games of chance; definitions and classification standards; Tribal governments consultations, 33668 E6-9044 NOAA National Oceanic and Atmospheric Administration PROPOSED RULES Fishery conservation and management: Northeastern United States fisheries— Small-mesh multispecies, 33721-33722 E6-9125 NOTICES Grants and cooperative agreements; availability, etc.: 2007 FY funds availability; omnibus notice, 33898-33929 06-5225 Reports and guidance documents; availability, etc.:

U.S. Climate Change Science Program Synthesis and Assessment Product Prospectuses, 33727-33728 E6-9126 Nuclear Nuclear Regulatory Commission NOTICES Environmental statements; availability, etc.: Tennessee Valley Authority, 33777-33778 E6-9058 *Applications, hearings, determinations, etc.:* Army Department; Jefferson Proving Ground, IN, 33776 E6-9060 Pension Pension Benefit Guaranty Corporation NOTICES Agency information collection activities; proposals, submissions, and approvals, 33778-33779 E6-9065 Pipeline Pipeline and Hazardous Materials Safety Administration RULES Hazardous materials transportation:

Cylinder and multi-element gas containers; design, construction, maintenance, and use; United Nations recommended standards adoption, 33858-33896 06-5182 Presidential Presidential Documents EXECUTIVE ORDERS Committees; establishment, renewal, termination, etc.: New Americans, Task Force on; establishment (EO 13404), 33593-33594 06-5351 State State Department NOTICES Agency information collection activities; proposals, submissions, and approvals, 33779 E6-9134 Foreign Operations, Export Financing, and Related Programs Appropriations Act:

Bosnia and Herzegovina; International Financing Corp. projects, 33779 E6-9133 Reports and guidance documents; availability, etc.: International Lake Ontario-St. Lawrence River Study Board report, 33779-33780 E6-9132 Transportation Transportation Department See Federal Aviation Administration See Federal Highway Administration See Federal Motor Carrier Safety Administration See Pipeline and Hazardous Materials Safety Administration NOTICES Regulatory review, 33780-33799 06-5240 Separate Parts In This Issue Part II Environmental Protection Agency, 33804-33855 06-4919 Part III Transportation Department, Pipeline and Hazardous Materials Safety Administration, 33858-33896 06-5182 Part IV Commerce Department, National Oceanic and Atmospheric Administration, 33898-33929 06-5225 Part V Commerce Department, International Trade Administration, 33932-33961 06-5221 Part VI Commerce Department, International Trade Administration, 33964-33988 06-5222 Reader Aids Consult the Reader Aids section at the end of this issue for phone numbers, online resources, finding aids, reminders, and notice of recently enacted public laws.

To subscribe to the Federal Register Table of Contents LISTSERV electronic mailing list, go to http://listserv.access.gpo.gov and select Online mailing list archives, FEDREGTOC-L, Join or leave the list (or change settings); then follow the instructions. 71 112 Monday, June 12, 2006 Rules and Regulations DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2006-24102; Directorate Identifier 2005-NM-244-AD; Amendment 39-14638; AD 2006-12-12] RIN 2120-AA64 Airworthiness Directives;

Boeing Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-300, 747-400, 747-400D, and 747SR Series Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final rule. SUMMARY: The FAA is superseding an existing airworthiness directive (AD), which applies to certain Boeing Model 747-100 and -200 series airplanes. That AD currently requires repetitive inspections for cracking of the station 800 frame assembly, and repair if necessary.

This new AD retains the repetitive inspection requirements of the existing AD, but expands the area to be inspected. This AD also reduces the initial inspection threshold, removes the adjustment of the compliance threshold and repetitive interval based on cabin differential pressure, and adds airplanes to the applicability. This AD results from several reports of cracks of the station 800 frame assembly on airplanes that had accumulated fewer total flight cycles than the initial inspection threshold in the existing AD.

We are issuing this AD to detect and correct fatigue cracks that could extend and fully sever the frame, which could result in development of skin cracks that could lead to rapid depressurization of the airplane. DATES: This AD becomes effective July 17, 2006. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in the AD as of July 17, 2006. On August 30, 2001 (66 FR 38891, July 26, 2001), the Director of the Federal Register approved the incorporation by reference of Boeing Alert Service Bulletin 747-53A2451, including Appendix A, dated October 5, 2000.

ADDRESSES: You may examine the AD docket on the Internet at *http://dms.dot.gov* or in person at the Docket Management Facility, U.S. Department of Transportation, 400 Seventh Street, SW., Nassif Building, Room PL-401, Washington, DC. Contact Boeing Commercial Airplanes, P.O. Box 3707, Seattle, Washington 98124-2207, for service information identified in this AD. FOR FURTHER INFORMATION CONTACT: Ivan Li, Aerospace Engineer, Airframe Branch, ANM-120S, FAA, Seattle Aircraft Certification Office, 1601 Lind Avenue, SW., Renton, Washington 98055-4056; telephone

(425)917-6437; fax

(425)917-6590. SUPPLEMENTARY INFORMATION: Examining the Docket You may examine the airworthiness directive

(AD)docket on the Internet at *http://dms.dot.gov* or in person at the Docket Management Facility office between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The Docket Management Facility office (telephone

(800)647-5227) is located on the plaza level of the Nassif Building at the street address stated in the ADDRESSES section. Discussion The FAA issued a notice of proposed rulemaking

(NPRM)to amend 14 CFR part 39 to include an AD that supersedes AD 2001-14-22, amendment 39-12333 (66 FR 38891, July 26, 2001). The existing AD applies to certain Boeing Model 747-100 and -200 series airplanes. That NPRM was published in the **Federal Register** on March 8, 2006 (71 FR 11551). That NPRM proposed to require repetitive inspections for cracking of the station 800 frame assembly, and repair if necessary. Comments We provided the public the opportunity to participate in the development of this AD. We have considered the comments that have been received on the NPRM. Support for the Proposed AD Air Transport Association (ATA), on behalf of its member Northwest Airlines, concurs with the intent of the NPRM. Requests To Remove or Revise 12-Month Grace Period From Table 2 Boeing requests that we remove the 12-month compliance time from paragraph (h), Table 2, items

(2)and (3), of the NPRM. Boeing states that the cracking that is the subject of the NPRM is initiated and propagated solely by cyclic loading as measured in flight cycles. Boeing also states that calendar time has no bearing on the initiation rate of the cracking. ATA, on behalf of Northwest Airlines, also comments on the 12-month grace period. Northwest states that, for operators who have planned completion of the initial inspection near the previously defined 19,000 flight-cycle threshold in accordance with AD 2001-14-22, the proposed 12-month grace period could result in unscheduled out-of-service airplanes. Northwest adds that the cracking addressed by the NPRM is attributed to fatigue, which is driven by flight cycles rather than calendar days. Northwest therefore requests that we change the calendar time from 12 months to 18 months, which is consistent with the Boeing maintenance interval on Model 747 airplanes. Northwest suggests limiting this calendar-time change to airplanes that have not exceeded the previously mandated 19,000 total-flight-cycle threshold. ATA states that this change would avoid disruption of maintenance visits that were scheduled to facilitate compliance with the existing AD. We agree that a grace period based on calendar time is inappropriate because, as Boeing states and ATA notes, the cracking that is the subject of the NPRM is initiated and propagated solely by cyclic loading as measured in flight cycles. For this reason, we disagree with ATA's request to extend the grace period to 18 months for certain airplanes. Instead, we have revised Table 2 of the final rule to remove the 12-month portion of the grace period, and to include only the compliance time based on flight cycles. This change will ensure an equivalent level of safety and alleviate concerns about unscheduled out-of-service airplanes. Request To Clarify Expanded Inspection Requirements for Previously Inspected Airplanes ATA, on behalf of Northwest Airlines, also requests that, for airplanes on which the inspections in accordance with AD 2001-14-22 have been done, we clarify that the inspection per procedures defined in Boeing Alert Service Bulletin 747-53A2451, Revision 1, dated November 10, 2005, be accomplished at the next scheduled repeat inspection. Northwest states that this request complies with the statement in the service bulletin that specifies no additional work is necessary on airplanes previously inspected in accordance with the initial release of the service bulletin (dated October 5, 2000), and to do the expanded inspection at the time of the next scheduled inspection. We partially agree. We agree with the commenter that, for the previously accomplished inspections, compliance with AD 2001-14-22 was met if the inspection was accomplished in accordance with the original release of the service bulletin (Boeing Alert Service Bulletin 747-53A2451, including Appendix A, dated October 5, 2000). It is the intent of the NPRM to match the service information provided by Boeing. We disagree that any change is necessary to clarify the AD. Paragraph

(f)of the AD states that, prior to the effective date of this new AD, the inspections may be accomplished in accordance with either the initial release or Revision 1 of the service bulletin. After the effective date of this AD, only Revision 1 may be used. We have not changed the AD in this regard. Explanation of Change to Costs of Compliance After the NPRM was issued, we reviewed the figures we have used over the past several years to calculate AD costs to operators. To account for various inflationary costs in the airline industry, we find it necessary to increase the labor rate used in these calculations from $65 per work hour to $80 per work hour. The cost impact information, below, reflects this increase in the specified hourly labor rate. Conclusion We have carefully reviewed the available data, including the comments that have been received, and determined that air safety and the public interest require adopting the AD with the changes described previously. We have determined that these changes will neither increase the economic burden on any operator nor increase the scope of the AD. Costs of Compliance There are about 900 airplanes of the affected design in the worldwide fleet. This AD will affect about 156 airplanes of U.S. registry. The inspections that are specified in AD 2001-14-22, and retained in this AD, take between 12 and 14 work hours per airplane, depending on the airplane configuration. The average labor rate is $80 per work hour. Based on these figures, the estimated cost of the currently required actions is between $960 and $1,120 per airplane, per inspection cycle. The new actions will take between 18 and 20 work hours per airplane, at an average labor rate of $80 per work hour. Based on these figures, the estimated cost of the new actions specified in this AD for U.S. operators is between $224,640 and $249,600, or between $1,440 and $1,600 per airplane, per inspection cycle. 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 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 that this AD:

(1)Is not a “significant regulatory action” under Executive Order 12866;

(2)Is not a “significant rule” under DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and

(3)Will not have a significant economic impact, positive or negative, on a substantial number of small entities under the criteria of the Regulatory Flexibility Act. We prepared a regulatory evaluation of the estimated costs to comply with this AD and placed it in the AD docket. 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, 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 Federal Aviation Administration

(FAA)amends § 39.13 by removing amendment 39-12333 (66 FR 38891, July 26, 2001) and by adding the following new airworthiness directive (AD): **2006-12-12 Boeing:** Amendment 39-14638. Docket No. FAA-2006-24102; Directorate Identifier 2005-NM-244-AD. Effective Date

(a)This AD becomes effective July 17, 2006. Affected ADs

(b)This AD supersedes AD 2001-14-22. Applicability

(c)This AD applies to all Boeing Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-300, 747-400, 747-400D, and 747SR series airplanes, certificated in any category. Unsafe Condition

(d)This AD results from several reports of cracks of the station 800 frame assembly on airplanes that had accumulated fewer total flight cycles than the initial inspection threshold in the existing AD. We are issuing this AD to detect and correct fatigue cracks that could extend and fully sever the frame, which could result in development of skin cracks that could lead to rapid depressurization 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. Restatement of the Requirements of AD 2001-14-22 Repetitive Inspections

(f)For Boeing Model 747-100, 747-100B, 747-100B SUD, -200B, 747-200C, and 747-200F series airplanes, as identified in Boeing Alert Service Bulletin 747-53A2451, including Appendix A, dated October 5, 2000: Do detailed, surface high-frequency eddy current (HFEC), and open-hole HFEC inspections, as applicable, for cracking of the station 800 frame assembly (including the inner chord strap, angles, and exposed web) between stringers 14 and 18, in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin 747-53A2451, including Appendix A, dated October 5, 2000; or Boeing Alert Service Bulletin 747-53A2451, Revision 1, dated November 10, 2005; after the effective date of this AD, only Revision 1 of the service bulletin may be used. Except as provided by paragraph

(g)of this AD, do the inspection at the applicable time specified in Table 1 of this AD, and repeat the inspections thereafter at intervals not to exceed 3,000 flight cycles until the initial inspections required by paragraph

(h)of this AD are accomplished. Table 1.—Compliance Times Total flight cycles as of August 30, 2001 (the effective date of AD 2001-14-22) Do the inspection in paragraph

(f)of this AD at this time

(1)Fewer than 19,000 Before the accumulation of 19,000 total flight cycles, or within 1,500 flight cycles after August 30, 2001, whichever comes later.

(2)19,000 or more, but 21,250 or fewer Within 1,500 flight cycles or 12 months after August 30, 2001, whichever comes first.

(3)21,251 or more Within 750 flight cycles or 12 months after August 30, 2001, whichever comes first. Adjustments to Compliance Time: Cabin Differential Pressure

(g)For Boeing Model 747-100, 747-100B, 747-100B SUD, -200B, 747-200C, and 747-200F series airplanes, as identified in Boeing Alert Service Bulletin 747-53A2451, including Appendix A, dated October 5, 2000, that are inspected before the effective date of this AD: Except as provided by paragraph

(i)of this AD, for the purposes of calculating the compliance threshold and repetitive interval for the actions required by paragraph

(f)of this AD, the number of flight cycles in which cabin differential pressure is at 2.0 pounds per square inch

(psi)or less need not be counted when determining the number of flight cycles that have occurred on the airplane, provided that the flight cycles with momentary spikes in cabin differential pressure above 2.0 psi are included as full pressure cycles. For this provision to apply, all cabin pressure records must be maintained for each airplane: No fleet-averaging of cabin pressure is allowed. New Requirements of this AD Repetitive Inspections of Expanded Area at a New Reduced Threshold

(h)For all airplanes, at the applicable time specified in Table 2 of this AD, except as provided by paragraph

(i)of this AD, do the following inspections of the station 800 frame assembly in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin 747-53A2451, Revision 1, dated November 10, 2005: A detailed inspection for cracking of the inner chord strap, angles, and exposed web adjacent to the inner chords on the station 800 frame between stringer 14 and stringer 18; and surface HFEC and open-hole HFEC inspections for cracking of the inner chord strap and angles. Do the initial inspections at the applicable time specified in Table 2 of this AD, and repeat the inspections thereafter at intervals not to exceed 3,000 flight cycles. Accomplishing the initial inspections required by this paragraph terminates the inspection requirements of paragraph

(f)of this AD. Table 2.—Revised Compliance Times Total flight cycles as of the effective date of this AD Do the inspections in paragraph

(h)of this AD at this time

(1)Fewer than 16,000 Before the accumulation of 16,000 total flight cycles, or within 1,500 flight cycles after the effective date of this AD, whichever comes later.

(2)16,000 or more, but 24,250 or fewer Within 1,500 flight cycles after the effective date of this AD.

(3)24,251 or more Within 750 flight cycles after the effective date of this AD. Adjustments to Compliance Time: Cabin Differential Pressure

(i)For the purposes of calculating the compliance threshold and repetitive interval for actions required by paragraphs

(f)and

(h)of this AD, on or after the effective date of this AD: All flight cycles, including the number of flight cycles in which cabin differential pressure is at 2.0 psi or less, must be counted when determining the number of flight cycles that have occurred on the airplane. However, for airplanes on which the repetitive interval for the actions required by paragraph

(f)of this AD have been calculated in accordance with paragraph

(g)of this AD by excluding the number of flight cycles in which cabin differential pressure is at 2.0 pounds psi or less: Continue to adjust the repetitive inspection interval in accordance with paragraph

(g)of this AD until the initial inspections required by paragraph

(h)of this AD are accomplished. Thereafter, no adjustment to compliance times based on paragraph

(g)of this AD is allowed. Repair

(j)If any cracking is detected during any inspection required by paragraph

(f)or

(h)of this AD, and the service bulletin specifies to contact Boeing for appropriate action: Before further flight, repair using a method approved in accordance with the procedures specified in paragraph

(l)of this AD. No Report Required

(k)Although the Accomplishment Instructions of Boeing Alert Service Bulletin 747-53A2451, including Appendix A, dated October 5, 2000; and Boeing Alert Service Bulletin 747-53A2451, Revision 1, dated November 10, 2005; describe procedures for reporting certain information to the manufacturer, this AD does not require that report. Alternative Methods of Compliance (AMOCs) (l)(1) The Manager, Seattle Aircraft Certification Office (ACO), FAA, has the authority to approve AMOCs for this AD, if requested in accordance with the procedures found in 14 CFR 39.19.

(2)Before using any AMOC approved in accordance with § 39.19 on any airplane to which the AMOC applies, notify the appropriate principal inspector in the FAA Flight Standards Certificate Holding District Office.

(3)An AMOC that provides an acceptable level of safety may be used for any repair required by this AD, if it is approved by an Authorized Representative for the Boeing Commercial Airplanes Delegation Option Authorization Organization who has been authorized by the Manager, Seattle ACO, to make those findings. For a repair method to be approved, the repair must meet the certification basis of the airplane.

(4)AMOCs approved previously in accordance with AD 2001-14-22, are approved as AMOCs for the corresponding provisions of paragraphs

(f)and

(j)of this AD. Material Incorporated by Reference

(m)You must use Boeing Alert Service Bulletin 747-53A2451, including Appendix A, dated October 5, 2000; or Boeing Alert Service Bulletin 747-53A2451, Revision 1, dated November 10, 2005; as applicable; to perform the actions that are required by this AD, unless the AD specifies otherwise.

(1)The Director of the Federal Register approved the incorporation by reference of Boeing Alert Service Bulletin 747-53A2451, Revision 1, dated November 10, 2005, in accordance with 5 U.S.C. 552(a) and 1 CFR part 51.

(2)On August 30, 2001 (66 FR 38891, July 26, 2001), the Director of the Federal Register approved the incorporation by reference of Boeing Alert Service Bulletin 747-53A2451, including Appendix A, dated October 5, 2000.

(3)Contact Boeing Commercial Airplanes, P.O. Box 3707, Seattle, Washington 98124-2207, for a copy of this service information. You may review copies at the Docket Management Facility, U.S. Department of Transportation, 400 Seventh Street, SW., Room PL-401, Nassif Building, Washington, DC; on the Internet at *http://dms.dot.gov* ; or at the National Archives and Records Administration (NARA). For information on the availability of this material at the NARA, call

(202)741-6030, or go to *http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html* . Issued in Renton, Washington, on May 31, 2006. Kalene C. Yanamura, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 06-5207 Filed 6-9-06; 8:45 am]

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