Events Leading to the Issuance of This AD
A proposal to amend part 39 of the Federal Aviation Regulations (14 CFR part 39) to include an AD that would apply to certain JAL Jetstream Models 3101 and 3201 airplanes, serial numbers 693 through 870, that have kit JK 2496 and modification JM 7537 installed and are registered in the United States, was published in the Federal Register on April 14, 1997 (62 FR 18062). The action proposed to require installing magnetically latching relays with wiring changes.
Accomplishment of the installation would be in accordance with Jetstream Service Bulletin No. 74-JM 7693A, Original Issue dated May 17, 1990; Revision No. 3 dated January 28, 1993.
Interested persons have been afforded an opportunity to participate in the making of this amendment. No comments were received on the proposed rule or the FAA's determination of the cost to the public.
The FAA's Determination
After careful review of all availableinformation 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 additional burden upon the public than was already proposed.
Cost Impact
The FAA estimates that 126 airplanes in the U.S. registry will be affected by this AD, that it will take approximately 9 workhours per airplane to accomplish this action, and that the average labor rate is approximately $60 an hour. The manufacturer is providing the parts at no charge. Based on these figures, the total cost impact of this AD on U.S. operators is estimated to be $68,040 or $540 per airplane.
Jetstream has informed the FAA it has received approximately 78 orders for the parts to accomplish this action. If each set of parts is installed on an affected airplane, the estimated cost tothe owners/operators in the U.S. will be reduced from 68,040 to $25,920.
Regulatory Impact
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 is contained 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.
39.13 [Amended]
2. Section 39.13 is amended by adding a new airworthiness directive (AD) to read as follows: