AD 2005-03-16 Airworthiness Directives; Raytheon Model DH.125, HS.125, and BH.125 Series Airplanes; BAe.125 Series 800A (C-29A and U-125) and 800B Airplanes; and Hawker 800 (Including Variant U-125A) and 800XP Airplanes; Equipped with TFE731 Engines

Makes named: raytheon. Models named: DH.125, HS.125, BH.125 series. Read the applicability below — it usually turns on serial or part numbers too.

This AD applies to Raytheon Model DH.125, HS.125, and BH.125 series airplanes; BAe.125 series 800A (C-29A and U-125) and 800B airplanes; and Hawker 800 (including variant U-125A) and 800XP airplanes; certificated in any category; equipped with TFE731 engines; as identified in Raytheon Service Bulletin SB 26-3496, dated November 2003.

You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. Installation of Insulating Blankets (f) Within 12 months after the effective date of this AD, install insulating blankets on the engine compartment firewall and the wire harness passing through the firewall fairlead, by doing all the actions in accordance with the Accomplishment Instructions of Raytheon Service Bulletin SB 26-3496, dated November 2003. No Reporting Requirement (g) The service bulletin describes procedures for reporting accomplishment of the service bulletin to the manufacturer; however, this AD does not require that action. Alternative Methods of Compliance (AMOCs) (h) The Manager, Wichita Aircraft Certification Office (ACO), FAA, has the authority to approve AMOCs for this AD, if requested in accordance with the procedures found in 14 CFR 39.19. Material Incorporated by Reference (i) You must use Raytheon Service Bulletin SB 26-3496, dated November 2003, to perform the actions that are required by this AD, unless the AD specifies otherwise. The Director of the Federal Register approves the incorporation by reference of this document in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. For copies of the service information, contact Raytheon Aircraft Company, Department 62, P.O. Box 85, Wichita, Kansas 67201-0085. For information on the availability of this material at the National Archives and Records Administration (NARA), call (202) 741-6030, or go to http://www.archives.gov/federal_register/ code_of_federal_regulations /ibr_locations.html. You may view the AD docket at the Docket Management Facility, U.S. Department of Transportation, 400 Seventh Street SW., room PL-401, Nassif Building, Washington, DC. Issued in Renton, Washington, on January 31, 2005. Kalene C. Yanamura, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 05-2577 Filed 2-11-05; 8:45 am] BILLING CODE 4910-13-P

This AD was prompted by a report indicating that insulation on the wire harness passing through the firewall fairlead ignited on the fuselage side of the firewall. We are issuing this AD to prevent a fire in the engine compartment from causing possible ignition of outgassing wire insulation on the fuselage side of the firewall, which could lead to an uncontrollable fire in the fuselage.