AD 94-07-10 R1

A proposal to amend part 39 of the Federal Aviation Regulations (14 CFR part 39) to include an AD that would apply to Fairchild Aircraft SA226 and SA227 series airplanes was published in the Federal Register on June 23, 1995 (60 FR 32628). The action proposed to revise AD 94-07-10 to retain the requirement of repetitively inspecting the wing skin for cracks, and would maintain the dye penetrant inspection requirement but require it in accordance with the correct portion of the ACCOMPLISHMENT INSTRUCTIONS section of the applicable service bulletin. This action also proposed to maintain the option of modifying the wing skin as terminating action for the repetitive inspections. Accomplishment of the proposed actions would be in accordance with one of the following, as applicable:

- Fairchild Service Bulletin (SB) 226-57-018, Issued: January 28, 1993, Revised: June 3, 1993 (pages 4 through 11 and 13 through 15), Revised: July 1, 1993 (page 12) and Revised: October 25, 1993 (pages 1 through 3);

- Fairchild SB 227-57-005, Issued: December 21, 1992, Revised: June 3, 1993 (pages 2 through 11 and 13 through 15), and Revised: July 1, 1993 (pages 1 and 12); or

- Fairchild Aircraft SB CC7-57-002, Issued: January 28, 1993, Revised: June 3, 1993 (pages 2 through 11 and 13 through 15), and Revised: July 1, 1993 (pages 1 and 12).

Interested persons have been afforded an opportunity to participate in the making of this amendment. One comment was received in favor of the proposal and no comments were received regarding the FAA's determination of the cost to the public.

After careful review of all available information related to the subject presented above, the FAA has determined that air safety and the public interest require the adoption of the rule as proposed except for minor editorial corrections. The FAA has determined that these minor corrections will not change the meaning of the AD and will not add any additionalburden upon the public than was already proposed.

The FAA estimates that 776 airplanes in the U.S. registry will be affected by this AD, that it will take approximately 1 workhour per airplane to accomplish the required visual inspection of the upper wing skin on both wings, and that the average labor rate is approximately $60 an hour. Based on these figures, the total cost impact of the AD on U.S. operators is estimated to be $46,560. This figure does not include the cost of any dye penetrant inspections of the rib strap that will be required if the wing skin is found cracked, and it does not include the cost of the repetitive inspections or the optional modification. Incorporating the optional modification terminates the need for the repetitive inspection requirement. The figure above is based upon the assumption that no affected airplane owner/operator has accomplished this inspection-terminating modification.

In addition, the actions required by this AD impose the samecost impact upon U.S. operators as is already required by AD 94-07-10.

The regulations adopted herein will not have substantial direct effects 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, in accordance with Executive Order 12612, it is determined that this final rule does not have sufficient federalism implications to warrant the preparation of a Federalism Assessment.

For the reasons discussed above, I certify that this action (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. A copy of the final evaluation prepared for this action iscontained in the Rules Docket. A copy of it may be obtained by contacting the Rules Docket at the location provided under the caption "ADDRESSES".

List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety.

Adoption of the Amendment Accordingly, pursuant to the authority delegated to me by the Administrator, the Federal Aviation Administration amends part 39 of the Federal Aviation Regulations (14 CFR part 39) as follows:

PART 39 - AIRWORTHINESS DIRECTIVES 1. The authority citation for part 39 continues to read as follows: Authority: 49 USC 106(g), 40113, 44701.

Section 39.13 - [AMENDED] 2. Section 39.13, is amended by removing Airworthiness Directive (AD) 94-07-10, Amendment 39-8868 (59 FR 15329; April 1, 1994), and by adding a new AD to read as follows: