SERVICE BULLETIN SB 28-4039, REV. 1

against SB 28-4039, Revision 1. HBC assumes no responsibility for fuel costs. Warranty coverage offered in this Service Bulletin will expire six (6) calendar months from the last day of the month Revision 1 of this Service Bulletin is issued. After this date, the owner/operator assumes the responsibility for compliance cost. HBC reserves the right to void continued 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). The owner/operator should contact an HBC ASC to schedule the warranty work to be accomplished. The HBC ASC must be rated to perform maintenance on the specific model of Hawker Beechcraft airplane. The HBC ASC will submit the appropriate paperwork directly to the HBC Warranty Department for warranty consideration. In the event that work cannot be accomplished at an HBC ASC, parts may be purchased directly from Hawker Beechcraft Parts & Distribution (HBP&D) and a warranty claim for parts ONLY should be submitted directly to the HBC Warranty Department. After the Service Bulletin has been accomplished, a warranty claim must be submitted to HBC within 60 days of the Service Bulletin completion date. 2. Material Information A. Materials - Price and Availability On application to the following address: Hawker Beechcraft Parts & Distribution (HBP&D) 10511 East Central Avenue Wichita, KS 67206 USA Phone: 316-676-3100 or 1-888-727-4344 Fax: 316-676-3222 or 316-676-3327 E-mail: HBC_Parts@hawkerbeechcraft.com B. Industry Support Not applicable. SERVICE BULLETIN Issued: August, 2010 Revised: October, 2011 SB 28-4039, REV. 1 4 of 11 MANDATORY C. Airplanes The following parts required for accomplishment of this Service Bulletin may be ordered through a Hawker Beechcraft Authorized Service Center, HBP&D or obtained locally: Hawker Beechcraft Corporation expressly reserves the right to supersede, cancel and/or declare obsolete, without prior notice, any parts or publications that may be referenced in this Service Bulletin. D. Spares Not applicable. E. Reidentified Parts None. F. Tooling - Price and Availability Non-explosive flashlight. Handheld mirror. 3. Accomplishment Instructions This Service Bulletin shall be accomplished as follows: NOTE Should any difficulty be encountered in accomplishing this Service Bulletin, contact Hawker Beechcraft Corporation at 1-800-429-5372 or 316-676-3140. Observe all Warnings and Cautions contained in the airplane manuals referenced in this Service Bulletin. Whenever any part of this system is dismantled, adjusted, repaired or renewed, detailed investigation must be made on completion to make sure that distortion, tools, rags or any other loose articles or foreign matter that could impede the free movement and safe operation of the system are not present, and that the systems and installations in the work area are clean. Part Number Description Quantity Per Airplane 62606 Clamp * As Required * Serials with standard wing configuration (Serials TH-1931 thru TH-2124) - 10 clamps per wing Serials with optional tip tank configuration (Serials TH-1931 thru TH-2119) - 10 clamps per wing Serials with optional tip tank configuration (Serials TH-2120 thru TH-2124, TH-2125 thru TH-2281, TH-2283, TH-2284) - 8 clamps per wing SERVICE BULLETIN Issued: August, 2010 Revised: October, 2011 5 of 11 SB 28-4039, REV. 1 MANDATORY A. Airplane To avoid risk of injury to personnel and damage to the airplane, follow all FUEL SYSTEM SAFETY PRECAUTIONS contained in the MM, Chapter 12 and Chapter 28, when performing inspections, servicing, operational testing, fueling/defueling and/or maintenance on the airplane’s fuel system. (1) Remove all power from the airplane and disconnect the battery. Display warning notices prohibiting reconnection of airplane electrical power. (2) Inspect the fuel hose clamps within both outboard wing sections. Access doors are located between Wing Stations 175.28 and 191.00. (a) On left wing, remove three (3) access doors; two (2) on lower side and one (1) on upper side. Refer to Figure 1. (b) On right wing, remove two (2) access doors on lower side. Refer to Figure 2. (c) With a mirror and a non-explosive flashlight, inspect areas for oversized/deformed clamps around the fuel hoses. Refer to Paragraph 2.C. for the quantity of clamps, depending on configuration. Refer to Figures 3, 4, and 5. (i) Inspect for gaps between the clamp and the hose. Clamps must be replaced if they do not close uniformly around the hose, are not concentric, or do not fit securely on the hose. Review all fuel system safety precautions in the MM, Chapters 12 and 28, before proceeding. (ii) If oversized/deformed clamp(s) are present, defuel the airplane before replacing clamps. Refer to MM, Chapter 28-00-00. (iii) If oversized/deformed clamps are not present, proceed to Step (6) below. (3) Remove oversized/deformed clamp(s) and replace with new clamp(s), P/N 62606. (4) Refuel airplane to full capacity. Refer to MM, Chapter 12-10-00. (5) Visually inspect for fuel leaks around the hose clamps. (6) Install all wing access doors removed in Steps 2(a) and (b) above. (7) Reconnect the airplane battery, remove warning notices, and restore power. (8) Ensure all work areas are clean and clear of tools and miscellaneous items of equipment. (9) Return airplane to service. SERVICE BULLETIN Issued: August, 2010 Revised: October, 2011 SB 28-4039, REV. 1 6 of 11 MANDATORY B. Spares Not applicable. C. Record of Compliance Upon completion of this Service Bulletin, make an appropriate maintenance record entry. SERVICE BULLETIN Issued: August, 2010 Revised: October, 2011 7 of 11 SB 28-4039, REV. 1 MANDATORY Fuel Hose Access on Left Wing Figure 1 SERVICE BULLETIN Issued: August, 2010 Revised: October, 2011 SB 28-4039, REV. 1 8 of 11 MANDATORY Fuel Hose Access on Lower Right Wing Figure 2 SERVICE BULLETIN Issued: August, 2010 Revised: October, 2011 9 of 11 SB 28-4039, REV. 1 MANDATORY B403903.AI DETAIL A B LEFT WING SHOWN RIGHT WING SIMILAR LOWER TANK ACCESS DOOR DETAIL B 2 CLAMPS 2 CLAMPS 2 CLAMPS 2 CLAMPS 2 CLAMPS UPPER ACCESS DOOR LOWER WING ACCESS DOOR A Fuel Hose Suspect Clamp Locations Standard Configuration (Serials TH-1931 thru TH-2124) Figure 3 SERVICE BULLETIN Issued: August, 2010 Revised: October, 2011 SB 28-4039, REV. 1 10 of 11 MANDATORY DETAIL A B403904.AI 2 CLAMPS 2 CLAMPS LOWER TANK ACCESS DOOR LOWER WING ACCESS DOOR UPPER ACCESS DOOR 2 CLAMPS 2 CLAMPS A 2 CLAMPS LEFT WING SHOWN RIGHT WING SIMILAR Fuel Hose Suspect Clamp Locations Optional Tip Tank Configuration (Serials TH-1931 thru TH-2119) Figure 4 SERVICE BULLETIN Issued: August, 2010 Revised: October, 2011 11 of 11 SB 28-4039, REV. 1 MANDATORY DETAIL A 2 CLAMPS 2 CLAMPS 2 CLAMPS LOWER TANK ACCESS DOOR LEFT WING SHOWN RIGHT WING SIMILAR LOWER WING ACCESS DOOR UPPER ACCESS DOOR A B403905.AI 2 CLAMPS Fuel Hose Suspect Clamp Locations Optional Tip Tank Configuration (Serials TH-2120 thru TH-2124, TH-2125 thru TH-2281, TH-2283, TH-2284) Figure 5