AD 2011-03-12 Airworthiness Directives; Hawker Beechcraft Corporation (Type Certificate Previously Held by Raytheon Aircraft Company; Beech Aircraft Corporation) Model 400A and 400T Airplanes

Makes named: beech, raytheon, hawker beechcraft. Models named: 400A. Read the applicability below — it usually turns on serial or part numbers too.

This AD applies to Hawker Beechcraft Corporation (Type Certificate previously held by Raytheon Aircraft Company; Beech Aircraft Corporation) airplanes, certificated in any category; as identified in paragraphs (c)(1) and (c)(2) of this AD. (1) Model 400A airplanes having serial numbers RK-337 through RK-484, RK-486 through RK-570 inclusive, RK-572, RK-573, and RK-575 through RK-577 inclusive. (2) Model 400T airplane having serial number TX-13.

You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. Inspection and Corrective Action (g) Within 200 flight hours or 12 months after the effective date of this AD, whichever occurs first: Do a detailed inspection for appropriate coverage of firewall sealant of the left and right pylon firewall structure, as specified in the figures of Hawker Beechcraft Mandatory Service Bulletin SB 54-3946, Revision 2, dated February 2010, and all applicable corrective actions; in accordance with the Accomplishment Instructions of Hawker Beechcraft Mandatory Service Bulletin SB 54-3946, Revision 2, dated February 2010. Do all applicable corrective actions before further flight. Note 1: For the purposes of this AD, a detailed inspection is: “An intensive examination of a specific item, installation, or assembly to detect damage, failure, or irregularity. Available lighting is normally supplemented with a direct source of good lighting at an intensity deemed appropriate. Inspection aids such as mirror, magnifying lenses, etc., may be necessary. Surface cleaning and elaborate procedures may be required.” Alternative Methods of Compliance (AMOCs) (h)(1) The Manager, Wichita Aircraft Certification Office (ACO), FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. Send information to ATTN: Thomas Teplik, Aerospace Engineer, Systems and Propulsion Branch, ACE-116W, FAA, Wichita Aircraft Certification Office (ACO), 1801 Airport Road, Room 100, Mid-Continent Airport, Wichita, Kansas 67209; telephone (316) 946-4196; fax (316) 946-4107. (2) Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/certificate holding district office. Related Information (i) For more information about this AD, contact Thomas Teplik, Aerospace Engineer, Systems and Propulsion Branch, ACE-116W, FAA, Wichita Aircraft Certification Office (ACO), 1801 Airport Road, Room 100, Mid-Continent Airport, Wichita, Kansas 67209; phone: (316) 946-4196; fax: (316) 946-4107; e-mail: Thomas.Teplik@faa.gov. Material Incorporated by Reference (j) You must use Hawker Beechcraft Mandatory Service Bulletin SB 54-3946, Revision 2, dated February 2010, to do the actions required by this AD, unless the AD specifies otherwise. (1) The Director of the Federal Register approved the incorporation by reference of Hawker Beechcraft Mandatory Service Bulletin SB 54-3946, Revision 2, dated February 2010, under 5 U.S.C. 552(a) and 1 CFR part 51. (2) For service information identified in this AD, contact Hawker Beechcraft Corporation, Department 62, P.O. Box 85, Wichita, Kansas 67201-0085; telephone 316-676-8238; fax 316-676-6706; e-mail tmdc@hawkerbeechcraft.com; Internet https://www.hawkerbeechcraft.com/service_support/pubs. (3) You may review copies of the service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington. For information on the availability of this material at the FAA, call 425-227-1221. (4) You may also review copies of the service information that is incorporated by reference at the National Archives and Records Administration (NARA). For information on the availability of this material at an NARA facility, call 202-741-6030, or go to http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html. Issued in Renton, Washington, on January 25, 2011. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2011-2442 Filed 2-4-11; 8:45 am] BILLING CODE 4910-13-P

This AD results from reports of missing sealant on the left and right pylon firewall structures. The Federal Aviation Administration is issuing this AD to detect and correct missing sealant on the left and right pylon firewall structures, which, in the event of an engine fire, could result in flames penetrating the seams in the firewall between the engine and the aft fuselage, and a subsequent uncontrolled fire in the aft fuselage.