These differences are highlighted in the ``Differences Between the FAA AD and the MCAI'' section in the AD.

Costs of Compliance

We estimate that this AD will affect 156 helicopters of U.S. registry. We also estimate that it will take 5 hours to inspect a helicopter with a copilot collective lever cover and 4 hours to inspect a helicopter without a copilot collective lever cover. The average labor rate is $80 per workhour. Required parts will cost about $400 for a helicopter with a copilot collective lever cover and $320 for a helicopter without a copilot collective lever cover. Based on these figures, we estimate the total cost to be $124,800, assuming all the helicopters have a copilot collective lever cover.

FAA's Determination of the Effective Date

An unsafe condition exists that requires the immediate adoption of this AD. The FAA has found that the risk to the flying public justifies waiving notice and comment prior to adoption of this rule because a short circuit and fire could occur from a damaged wiring harness. Each wiring harness must be inspected within a short period of time, 25 hours timeinservice, for chafing and wear and modified as necessary to prevent a fire from occurring in the helicopter. Therefore, we determined that notice and opportunity for public comment before issuing this AD are impracticable and that good cause exists for making this amendment effective in fewer than 30 days.

Comments Invited

This AD is a final rule that involves requirements affecting flight safety, and we did not precede it by notice and opportunity for public comment. We invite you to send any written relevant data, views, or arguments about this AD. Send your comments to an address listed under the ADDRESSES section. Include ``Docket No. FAA20080165; Directorate Identifier 2007SW58AD'' at the beginning of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of this AD. We will consider all comments received by the closing date and may amend this AD because of those comments.

We will post all comments we receive, without change, to http://www.regulations.gov , including any personal information you provide. We
will also post a report summarizing each substantive verbal contact we receive about this AD.

Authority for This Rulemaking

Title 49 of the United States Code specifies the FAA's authority to issue rules on aviation safety. Subtitle I, section 106, describes the authority of the FAA Administrator. ``Subtitle VII: Aviation Programs,'' describes in more detail the scope of the Agency's authority.

We are issuing this rulemaking under the authority described in ``Subtitle VII, Part A, Subpart III, Section 44701: General requirements.'' Under that section, Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds necessary for safety in air commerce. This regulation is within the scope of that authority because it addresses an unsafe condition that is likely to exist or develop on products identified in this rulemaking action.

Regulatory Findings

We determined that this AD will not have federalism implications under Executive Order 13132. This AD will not have a substantial direct effect on the States, on the relationship between the national government and the States, or on the distribution of power and responsibilities among the various levels of government.

For the reasons discussed above, I certify this AD:

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 an economic evaluation of the estimated costs to comply with this AD and placed it in the AD docket.

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 39AIRWORTHINESS 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: 20080405 Eurocopter Deutschland: Amendment 3915377. Docket No. FAA20080165; Directorate Identifier 2007SW58AD.
Effective Date
(a) This airworthiness directive (AD) becomes effective on March 6, 2008.
Other Affected ADs
(b) None.
Applicability
(c) This AD applies to Model EC135 helicopters, serial number 0005 up to and including 0576, certificated in any category. [[Page 9183]]
Subject
(d) Air Transport Association of America (ATA) Code: 5321, Frame; and 1497, Miscellaneous wiring.
Reason
(e) The mandatory continued airworthiness information (MCAI) states:

During a flight a burning odour [sic] could be smelled in the cabin. Its reason was a short circuit in the LH cable channel, which was caused by a damaged wire harness. The wire harness was damaged by the side channel cover's attachment hardware.
The rubbing and chafing of the wiring harnesses in the tunnels underneath the channel cover, against the screws and rivets attaching the channel covers, could lead to a short circuit of the wiring harness and a subsequent fire in the helicopter.
Actions and Compliance
(f) Within 25 hours timeinservice (TIS), unless already done, do the following:
(1) Inspect the wiring harnesses for chafing and wear in the areas shown in Figure 1 of Eurocopter Alert Service Bulletin EC135 53A017, Revision 1, dated June 22, 2007 (ASB).
(i) If chafing or wear is found on the wiring harness, before further flight, replace the wiring harness with an airworthy wiring harness.
(ii) If no chafing or wear is found, modify the side channel covers by affixing doublesided adhesive tape in the area depicted in Figure 2 of the ASB by following the Accomplishment Instructions, paragraph C, of the ASB.
(2) Modify the attachment of the copilot collective lever cover as depicted in Figure 3 of the ASB by following the Accomplishment Instructions, paragraph D, of the ASB.
(3) Attach chafing protection to the wiring harnesses and replace affected screws as depicted in and in accordance with Figure 4 of the ASB and by following the Accomplishment Instructions, paragraphs E and F, of the ASB. Paragraph F(2) of the ASB applies only to helicopters with a copilot collective lever cover.
Differences Between the FAA AD and the MCAI
(g) This AD differs from the MCAI as follows:
(1) We do not require contacting the manufacturer for further instructions if a wiring harness is damaged but require that you replace a damaged wiring harness with an airworthy wiring harness. (2) We do not require a February 28, 2007, compliance time because that date has passed.
(3) We have used the helicopter S/N 0005 up to and including S/N 0576 as stated in the service information rather than the helicopter S/N 0005 up to and including 0654 as stated in the MCAI.
(4) We refer to the compliance time as ``hours TIS'' rather than ``flight hours.''
Other FAA AD Provisions
(h) The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager, Safety Management Group, 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: Carroll Wright, Aviation Safety Engineer, Rotorcraft Directorate, Regulations and Policy Group, Fort Worth, Texas 761930111, telephone (817) 2225120, fax (817) 2225961. (2) Airworthy Product: Use only FAAapproved corrective actions. Corrective actions are considered FAAapproved if they are approved by the State of Design Authority (or their delegated agent) if the State of Design has an appropriate bilateral agreement with the United States. 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, the Office of Management and Budget (OMB) has approved the information collection requirements and has assigned OMB Control Number 2120 0056.
Related Information
(i) Mandatory Continuing Airworthiness Information (MCAI) Emergency Airworthiness Directive No. 20070021E, dated January 19, 2007, contains related information.
Material Incorporated by Reference
(j) The Director of the Federal Register approved the
incorporation by reference of Eurocopter Alert Service Bulletin EC13553A017, Revision 1, dated June 22, 2007, under 5 U.S.C. 552(a) and 1 CFR part 51.
(k) For the Eurocopter service information identified in this AD, contact American Eurocopter Corporation, 2701 Forum Drive, Grand Prairie, Texas 750534005, telephone (972) 6413460, fax (972) 641 3527.
(l) You may review copies of the Eurocopter service information at the FAA, Office of the Regional Counsel, Southwest Region, 2601 Meacham Blvd., Room 663, Fort Worth, Texas, or at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call (202) 7416030, or go to: http://www.archives.gov/federalregister/cfr/ibrlocations.html.

Issued in Fort Worth, Texas, on February 6, 2008. Scott A. Horn,
Acting Manager, Rotorcraft Directorate, Aircraft Certification Service. [FR Doc. E82850 Filed 21908; 8:45 am]
BILLING CODE 491013P

FOR FURTHER INFORMATION CONTACT Carroll Wright, Aviation Safety Engineer, FAA, Rotorcraft Directorate, Regulations and Policy Group, Fort Worth, Texas 761930111, telephone (817) 2225120, fax (817) 222 5961.