98-23-15: Fuel Feed Hose Assemblies

98-23-15 RAYTHEON AIRCRAFT COMPANY (Formerly Beech): Amendment 39-10883. Docket 98-NM-195-AD. Applicability: Model Hawker 800XP series airplanes, serial numbers 258297 through 258304 inclusive, and 258307 through 258309 inclusive; 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 as indicated, unless accomplished previously. To prevent failure of the fuel feed hose assemblies, which could result in fuel leakage and consequent risk of fire in the aft equipment bay, accomplish the following: (a) Within 300 flight hours or 3 months after the effective date of this AD, whichever occurs later, replace the fuel feed hose assemblies of the auxiliary power unit (APU) with new hose assemblies in accordance with Raytheon Aircraft Service Bulletin SB.49-3018, dated August 1997. (b) If replacement fuel feed hose assemblies are not immediately available for installation, shut down the APU and display warning notices prohibiting use of the APU in accordance with Raytheon Aircraft Service Bulletin SB.49-3018, dated August 1997, until the replacement required by paragraph (a) of this AD is accomplished. (c) An alternative method of compliance or adjustment of the compliance time that provides an acceptable level of safety may be used if approved by the Manager, Wichita Aircraft Certification Office (ACO), FAA, Small Airplane Directorate. Operators shall submit their requests through an appropriate FAA Principal 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) 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. (e) The actions shall be done in accordance with Raytheon Service Bulletin SB.49-3018, dated August 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, Manager Service Engineering, Hawker Customer Support Department, P.O. Box 85, Wichita, Kansas 67201-0085. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the FAA, Small Airplane Directorate, Wichita Aircraft Certification Office, 1801 Airport Road, Room 100, Mid-Continent Airport, Wichita, Kansas; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC. (f) This amendment becomes effective on December 18, 1998.