SERVICE BULLETIN SB 21-3877

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1 of 5 SERVICE BULLETIN MANDATORY SB 21-3877 Issued: November, 2009 The export of these commodities, technology or software are subject to the U.S. Export Administration Regulations. Diversion contrary to U.S. law is prohibited. For guidance on export control requirements, contact the Commerce Department's Bureau of Export Administration at http://www.bis.doc.gov. Hawker Beechcraft Corporation (HBC) issues Service Information for the benefit of owners and fixed base operators in the form of two classes of Service Bulletins. The first class, Mandatory Service Bulletins (red border) includes changes, inspection and modifications that could affect safety or crashworthiness. HBC also issues Service Bulletins with no red border which are designated as either recommended or optional in the compliance section within the bulletin. In the case of recommended Service Bulletins, HBC feels the changes, modifications, improvements or inspections will benefit the owner/operator and although highly recommended, Recommended Service Bulletins are not considered mandatory at the time of issuance. In the case of Optional Service Bulletins, compliance with the changes, modifications, improvements or inspections is at the owner/operator's discretion. Both classes are available on the web at http://pubs.hawkerbeechcraft.com and mailed to: (a) Owners of record on the FAA Aircraft Registration Branch List and the HBC Safety of Flight Information (SOFI) List. (b) Those having a publications subscription. Information on Safety of Flight Information (SOFI) or subscription can be obtained through the Hawker Beechcraft Corporation Technical Manual Distribution Center (TMDC). As Mandatory Service Bulletins and Service Bulletins are issued, the Service Bulletin Master Index will be updated and available online at http://pubs.hawkerbeechcraft.com. Warranty will be allowed only when specifically defined in the Service Bulletin and in accordance with HBC Warranty Policy. Unless otherwise designated, HBC Mandatory Service Bulletins, Service Bulletins and HBC Kits are approved for installation on HBC airplanes in original or HBC modified configurations only. HBC Mandatory Service Bulletins, Service Bulletins and Kits may not be compatible with airplanes modified by STC installations or modifications other than HBC approved kits. Beechcraft 1. Planning Information A. Effectivity (1) Airplanes Model 58 and G58 Baron, Serials TH-2015 through TH-2239. If you are no longer in possession of the airplane, please forward this information to the present owner. (2) Spares None. B. Reason This Service Bulletin is being issued to add circuit protection to the solid state combustion heater fuel pump to prevent a potential overheat condition, and subsequent smoke in the cockpit. Safety Communiqué 278 has been issued as a reminder that all electrical equipment must be in the OFF position prior to engine start and engine shutdown. C. Description Kit 58-3049-0001 is installed to provide a 2-amp fuse in the combustion heater fuel pump power circuit. D. Compliance An Airworthiness Directive will be requested on the matter covered by this Service Bulletin. Hawker Beechcraft Corporation (HBC) considers this to be a Mandatory Service Bulletin. It must be accomplished within the next 100 flight hours or 12 calendar months from receipt of this Service Bulletin, whichever occurs first. Kit 58-3049-0001 TITLE: ENVIRONMENTAL / AIR CONDITIONING - COMBUSTION HEATER FUEL PUMP PROTECTION SERVICE BULLETIN Issued: November, 2009 SB 21-3877 2 of 5 MANDATORY E. Approval The engineering data contained in this Service Bulletin is FAA approved. This modification is classified Minor per FAA Order 8110.52. Prior to accomplishment, owners / operators of airplanes registered in countries other than the United States shall consult with their local Aviation Regulatory Authority. F. Manpower The following information is for planning purposes only: Estimated man-hours: 2 hours. Suggested number of men: 1 man. The above is an estimate based on experienced, properly-equipped personnel complying with this Service Bulletin. Occasionally, after work has started, conditions may be found that could result in additional man- hours. G. Weight and Balance Negligible. H. Electrical Load Data Not changed. I. Software Accomplishment Summary Not applicable. J. References Safety Communiqué 278, January 2007 or subsequent revision; Field Service Kit 58-3049-0001. K. Publications Affected It is recommended that a note "See Service Bulletin 21-3877" be made in the following: Baron (58) Electrical Wiring Diagram Manual, P/N 96-590011-29C or subsequent revision, Chapter 21-41-01; Baron (G58) Electrical Wiring Diagram Manual, P/N 58-590001-3C or subsequent revision, Chapter 21-41-01. L. Interchangeability of Parts Not applicable. SERVICE BULLETIN Issued: November, 2009 3 of 5 SB 21-3877 MANDATORY M. Warranty Credit Warranty credit for labor and parts to the extent noted under MANPOWER and MATERIAL will be allowed on all affected airplanes. Claims for compliance with this Service Bulletin are to be filed as a W3-type claim against SB21-3877. Warranty coverage offered in this Service Bulletin will expire 12 months from the last day of the month this Service Bulletin is issued. After that date, the owner / operator assumes the responsibility for compliance cost. Hawker Beechcraft Corporation (HBC) reserves the right to void warranty coverage in the area affected by this Service Bulletin until the date the Service Bulletin is accomplished by an HBC Authorized Service Center (ASC). All warranty work must be accomplished by an HBC ASC rated to perform maintenance on the specific model of Hawker Beechcraft airplane. The HBC ASC will submit the appropriate paperwork directly to HBC Warranty for parts and labor to the extent noted under Section 1.M. Warranty Credit for warranty