AD 98-13-11

This amendment adopts a new airworthiness directive (AD) that applies to certain Raytheon Aircraft Company (Raytheon) Model 1900D airplanes. This action requires modifying the airplane by incorporating Raytheon Kit No. 129-5200-1, "Ground Fine Switch Installation Kit". This action is the result of design analysis during certification of 5.5 degree approach landings of the Model 1900D airplanes. The actions specified by this AD are intended to prevent a loose or misrigged ground fine switch, which could result in very hard landings causing structural damage to the airplane and possible passenger injury.

Final rule

98-13-11 RAYTHEON AIRCRAFT COMPANY (Type Certificate No. A24CE formerly held by the Beech Aircraft Corporation): Amendment 39-10599; Docket No. 97-CE-86-AD.

Applicability: Model 1900D airplanes, serial numbers UE-1 through UE-271, certificated in any category.

NOTE 1: This AD applies to each airplane identified in the preceding applicability provision, regardless of whether it has been modified, altered, or repaired in the area subject to the requirements of this AD. For airplanes that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must request approval for an alternative method of compliance in accordance with paragraph (c) of this AD. The request should include an assessment of the effect of the modification, alteration, or repair on the unsafe condition addressed by this AD; and, if the unsafe condition has not been eliminated, the request should include specific proposed actions to address it.

Compliance: Required within the next 800 hours time-in-service (TIS) after the effective date of this AD, unless already accomplished.

To prevent a loose or misrigged ground fine switch, which could result in very hard landings causing structural damage to the airplane and possible passenger injury, accomplish the following:

(a) Modify the ground idle low pitch stop system on the airplane by incorporating Raytheon "Ground Fine Switch Installation Kit" No. 129-5200-1 in accordance with the Accomplishment Instructions section of Raytheon Aircraft Mandatory Service Bulletin No. 2714, Issued: June, 1997.

(b) Special flight permits may be issued in accordance with sections 21.197 and 21.199 of the Federal Aviation Regulations (14 CFR 21.197 and 21.199) to operate the airplane to a location where the requirements of this AD can be accomplished.

(c) An alternative method of compliance or adjustment of the compliance time that provides an equivalent level of safety may be approved by the Manager, Wichita Aircraft Certification Office (ACO), Room 100, 1801 Airport Rd., Wichita, Kansas 67209. The request shall be forwarded through an appropriate FAA Maintenance Inspector, who may add comments and then send it to the Manager, Wichita ACO.

NOTE 2: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Wichita Aircraft Certification Office.

(d) The modification required by this AD shall be done in accordance with Raytheon Aircraft Mandatory Service Bulletin No. 2714, Issued: June, 1997. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Copies may be obtained from Raytheon Aircraft Company, P.O. Box 85, Wichita, Kansas 67201-0085. Copies may be inspected at the FAA, Central Region, Office of the Regional Counsel, Room 1558, 601 E. 12th Street, Kansas City, Missouri,or at the Office of the Federal Register, 800 North Capitol Street, NW, suite 700, Washington, DC.

(e) This amendment becomes effective on August 3, 1998.

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 Raytheon Model 1900D airplanes was published in the Federal Register as a notice of proposed rulemaking (NPRM) on February 2, 1998 (63 FR 3278). The NPRM proposed to require modifying the airplane by incorporating Raytheon Kit No. 129-5200-1, "Ground Fine Switch Installation Kit". Accomplishment of the proposed action as specified in the NPRM would be in accordance with Raytheon Aircraft Mandatory Service Bulletin No. 2714, Issued: June, 1997.

The NPRM was the result of design analysis during certification of 5.5 degree approach landings of the Model 1900D airplanes.

Interested persons have been afforded an opportunity to participate in the making of this amendment. The comments received on the proposed rule have been given due consideration.

The manufacturer, Raytheon AircraftCompany, states that the "Ground Fine Switch Installation Kit" number is wrong. The kit number cited in the NPRM was P129-5200-1. Raytheon states that the "P" in front of the number was used to indicate "prototype" during the approval process. The actual kit number should be 129-5200-1. The FAA concurs and will remove the "P" on all references to Raytheon Kit No. P129-5200-1 in the preamble and body of the AD.

The other comment received was from the Air Line Pilots Association (ALPA). ALPA concurs with the actions in the proposed AD. The FAA's Determination

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 the corrections mentioned above and minor editorial corrections. The FAA has determined that these corrections will not change the meaning of the AD and will not add any additional burden upon the public than wasalready proposed.

Cost Impact
The FAA estimates that 271 airplanes in the U.S. registry will be affected by this AD, that it will take approximately 4 workhours per airplane to accomplish this action, and that the average labor rate is approximately $60 an hour. Raytheon is providing the kit and labor at no cost to the owners/operators under their Warranty Credit program for 12 months after the last day of the month that the manufacturer's service bulletin was issued. If there were no warranty on the parts and labor to accomplish this action, the cost for U.S. operators is estimated to be $65,040 or $240 per airplane. This figure is based on the assumption that no affected operators have accomplished this action.

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 U.S.C. 106(g), 40113, 44701.

39.13 [Amended]
2. Section 39.13 is amended by adding a new airworthiness directive (AD) to read as follows: