AD 2008-14-03

This AD becomes effective on August 14, 2008.

The Director of the Federal Register approved the incorporation by reference of certain publications listed in this AD as of August 14, 2008.

You may examine the AD docket on the Internet at http://regulations.gov or in person at the Docket Operations office, U.S. Department of Transportation, M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue, SE., Washington, DC between 9 a.m. and 5 p.m. Monday through Friday, except Federal holidays.

You may get the service information identified in this AD from BHTC, 12,800 Rue de l'Avenir, Mirabel, Quebec J7J1R4, telephone (450) 437-2862 or (800) 363-8023, fax (450) 433-0272.

Examining the AD Docket: The AD docket contains the Notice of proposed rulemaking (NPRM), the economic evaluation, any comments received, and other information. The street address and operating hours for the Docket Operations office (telephone (800) 647-5227) are in the ADDRESSES section of this AD. Comments will be available in the AD docket shortly after they are received.

Sharon Miles, Aviation Safety Engineer, FAA, Rotorcraft Directorate, Regulations and Policy Group, Fort Worth, Texas 76193-0111, telephone (817) 222-5122, fax (817) 222-5961.

We issued an NPRM to amend 14 CFR part 39 to include an AD that would apply to the specified products. That NPRM was published in the Federal Register on January 23, 2008 (73 FR 3887). That NPRM proposed to correct an unsafe condition for the specified products which results from an improper installation of the tailboom attachment bolt in the upper left hand tailboom attachment CRES steel fitting. The MCAI states: “It has been determined that some helicopters have been fitted with a CRES steel fitting, part number (P/N) 407-030-750-103, and the installation of the tailboom attachment bolt does not meet the design criteria.”

By publishing the NPRM, we gave the public an opportunity to participate in developing this AD. However, we received no comment on the NPRM or on our determination of the cost to the public. Therefore, based on our review and evaluation of the available data, we have determined that air safety and the public interest require adopting the AD as proposed.

BHTC has issued Alert Service Bulletin No. 206-06-110 and No. 206L-06-140, both dated September 7, 2006. The actions described in the MCAI are intended to correct the same unsafe condition as that identified in the service information.

There are no differences between this AD and the MCAI AD.

We estimate that this AD will affect about 2,206 helicopters (1,471 Model 206A and 206B helicopters and 735 Model 206L helicopters) of U.S. registry. We also estimate that it will take about.5 work-hour per helicopter to determine if a tailboom attachment bolt must be replaced and, if so, 1 additional work hour to replace the tailboom attachment bolt. The average labor rate is $80 per work-hour. Required parts will cost about $133 for Model 206L series helicopters, and $71 for Model 206A and 206B series helicopters. Based on these figures, we estimate the cost of this AD on U.S. operators to be $466,916, or $253 for each Model 206L series helicopter and $191 for each Model 206A and 206B series helicopter.

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 product(s) identified in this rulemaking action.

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.

Therefore, 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.

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

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

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