AD 99-03-11 Airworthiness Directives; Raytheon Aircraft Company Beech Model 60 Airplanes

Makes named: beech, raytheon. Models named: 60. Read the applicability below — it usually turns on serial or part numbers too.

Beech Model 60 airplanes, serial numbers P-159, and P166 through P-596; 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.

Required within the next 25 hours time-in-service (TIS) after the effective date of this AD, unless already accomplished. To prevent the circuit that operates the aircraft cabin heater from overheating because of the current wiring design, which could result in possible smoke/fire if the heating system continued to operate in an ``over-temperature'' condition, accomplish the following: (a) Modify the aircraft cabin heat control wiring in accordance with the ACCOMPLISHMENT INSTRUCTIONS section in Raytheon Mandatory Service Bulletin SB 24-3097, Issued: December, 1998. (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), 1801 Airport Road, Room 100, Mid-Continent Airport, 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 ACO. (d) The modification required by this AD shall be done in accordance with Raytheon Mandatory Service Bulletin SB 24-3097, Issued: December, 1998. 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 the Raytheon Aircraft Corporation, P.O. Box 85, Wichita, Kansas 67201. 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 March 4, 1999. Issued in Kansas City, Missouri, on January 29, 1999. Michael Gallagher, Manager, Small Airplane Directorate, Aircraft Certification Service. [FR Doc. 99-2633 Filed 2-4-99; 8:45 am] BILLING CODE 4910-13-P