Examining the Docket \n\n\tYou 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. \n\nDiscussion \n\n\tThe FAA issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 to include an AD that would apply to certain Boeing Model 737-600, -700, -700C, -800, and -900 series airplanes. That NPRM was published in the Federal Register on May 5, 2006 (71 FR 26423). That NPRM proposed to require testing the electrical resistance of the bond between the bulkhead fitting for the fuel feed line and the front spar of the left and right wings, inspecting an adjacent bonding jumper to make sure it is installed correctly, andperforming corrective and other specified actions as applicable. \n\nComments \n\n\tWe provided the public the opportunity to participate in the development of this AD. We have considered the comments received. \n\nRequest To Cite Revised Service Information \n\n\tAirTran Airways (AirTran) supports the NPRM. AirTran asks that if the NPRM is changed to refer to Revision 1 of Boeing Special Attention Service Bulletin 737-28-1225 (which was being drafted when the comment was submitted), credit be given for accomplishing the inspection and modification in accordance with the original issue of the service bulletin. The NPRM referred to Boeing Special Attention Service Bulletin 737-28-1225, dated January 12, 2006, as the source of service information for accomplishing the specified actions. \n\n\tBoeing asks that paragraphs (c) and (f) of the NPRM be changed to reference Boeing Special Attention Service Bulletin 737-28-1225, Revision 1, dated October 30, 2006. Boeing notes that Revision 1 corrects the illustrations that show the routing of the bonding jumpers, as well as the illustration views that show the locations of the electrical bond resistance equipment probes. (At the time this comment was submitted, Revision 1 was not yet issued.) Boeing adds that its request is to eliminate the need for an alternative method of compliance (AMOC) request. Boeing also states that credit should be given for accomplishing the actions in accordance with the original issue. \n\n\tWe agree with these requests. We have reviewed Revision 1 of the referenced service bulletin, which specifies that no more work is necessary on airplanes changed as shown in the original issue of the service bulletin; the changes in Revision 1 are mainly editorial. Therefore, we have changed paragraph (f) of the AD to add Boeing Special Attention Service Bulletin 737-28-1225, Revision 1, dated October 30, 2006, as the source of service information for accomplishing the requirements in that paragraph, and we haveadded a new paragraph (g) to the AD to give credit for the actions done before the effective date of this AD in accordance with Boeing Special Attention Service Bulletin 737-28-1225, dated January 12, 2006. We have also changed the applicability in paragraph (c) of the AD to reference Revision 1. \n\nRequest To Correct Certain Grammar \n\n\tBoeing also asks that we correct the grammar specified in paragraph (f) of the NPRM by deleting the language "by doing all of the actions specified.'' We agree and have changed the specified language. \n\nConclusion \n\n\tWe have carefully reviewed the available data, including the comments 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. \n\nCosts of Compliance \n\n\tThere are about 1,541 airplanes of the affected design in the worldwide fleet. This AD affects about 591 airplanes of U.S. registry. The required actions take about 4 work hours per airplane, at an average labor rate of $80 per work hour. Based on these figures, the estimated cost of the AD for U.S. operators is $189,120, or $320 per airplane. \n\nAuthority for This Rulemaking \n\n\tTitle 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. \n\n\tWe 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. \n\nRegulatory Findings \n\n\tWe 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. \n\n\tFor the reasons discussed above, I certify that this AD: \n\n\t(1) Is not a "significant regulatory action'' under Executive Order 12866; \n\n\t(2) Is not a "significant rule'' under DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and \n\n\t(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. \n\n\tWe prepared a regulatory evaluation of the estimated costs to comply withthis AD and placed it in the AD docket. See the ADDRESSES section for a location to examine the regulatory evaluation. \n\nList of Subjects in 14 CFR Part 39 \n\n\tAir transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. \n\nAdoption of the Amendment \n\nAccordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: \n\nPART 39--AIRWORTHINESS DIRECTIVES \n\n1. The authority citation for part 39 continues to read as follows: \n\n\tAuthority: 49 U.S.C. 106(g), 40113, 44701. \n\nSec. 39.13 (Amended) \n\n2. The Federal Aviation Administration (FAA) amends Sec. 39.13 by adding the following new airworthiness directive (AD):