AD 2007-20-07 Airworthiness Directives; Hawker Beechcraft Corporation (Type Certificate No. A00010WI Previously Held by Raytheon Aircraft Company) Model 390 Airplanes

Makes named: raytheon, hawker beechcraft. Models named: 390. Read the applicability below — it usually turns on serial or part numbers too.

This AD applies to Model 390 airplanes, serial numbers RB-1 and RB-4 through RB-149, that are certificated in any category.

To address this problem, you must do the following, unless already done:   Actions Compliance Procedures (1) Inspect the left-hand and right-hand starter-generators, Raytheon Aircraft Company (RAC) part number (P/N) 390-389001-0001 or Advance Industries, Inc. (AI) P/N MG94A-1, to determine the serial number and suffix letter as specified in paragraph 3.A.(2) of RAC Mandatory Service Bulletin SB 24-3790, Issued: August, 2006 Within the next 50 hours time-in-service (TIS) after November 7, 2007 (the effective date of this AD) or within the next 3 months after November 7, 2007 (the effective date of this AD), whichever occurs first Follow RAC Mandatory Service Bulletin SB 24-3790, Issued: August, 2006. (2) If any starter-generator(s) specified in paragraph 3.A.(2) of RAC Mandatory Service Bulletin SB 24-3790, Issued: August, 2006, is/are found during the inspection required in paragraph (e)(1) of this AD, replace that starter-generator with a properly shimmed starter-generator As follows: (i) If both starter-generators are identified as being improperly shimmed, replace at least one within 10 hours TIS after the inspection required in paragraph (e)(1) of this AD. Replace the other within the next 200 hours TIS after November 7, 2007 (the effective date of this AD) or within the next 12 months after November 7, 2007 (the effective date of this AD), whichever occurs first (ii) If one starter-generator is identified as being improperly shimmed, replace it within the next 200 hours TIS after November 7, 2007 (the effective date of this AD) or within the next 12 months after November 7, 2007 (the effective date of this AD), whichever occurs first Follow RAC Mandatory Service Bulletin SB 24-3790, Issued: August, 2006. (3) If a starter-generator specified in paragraph 3.A.(2) of RAC Mandatory Service Bulletin SB 24-3790, Issued: August, 2006, is not found during the inspection required in paragraph (e)(1) of this AD, no further action is required Not applicable Follow RAC Mandatory Service Bulletin SB 24-3790, Issued: August, 2006. (4) Do not install on any airplane any RAC P/N 390-389001-0001 or AI P/N MG94A-1 that is specified in paragraph 3.A.(2) of RAC Mandatory Service Bulletin SB 24-3790, Issued: August, 2006 Before further flight after the inspection required in paragraph (e)(1) of this AD Follow RAC Mandatory Service Bulletin SB 24-3790, Issued: August, 2006. Alternative Methods of Compliance (AMOCs) (f) 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: Philip Petty, Aerospace Engineer, Wichita ACO, FAA, 1801 Airport Road, Room 100, Wichita, Kansas 67209; telephone: (316) 946-4139; fax: (316) 946-4107; e-mail: philip.petty@faa.gov . Before using any approved AMOC on any airplane to which the AMOC applies, notify your appropriate principal inspector (PI) in the FAA Flight Standards District Office (FSDO), or lacking a PI, your local FSDO. Material Incorporated by Reference (g) You must use Raytheon Aircraft Company Mandatory Service Bulletin SB 24-3790, Issued: August, 2006, 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 this service information under 5 U.S.C. 552(a) and 1 CFR part 51. (2) For service information identified in this AD, contact Hawker Beechcraft Company, P.O. Box 85, Wichita, Kansas 67201-0085; telephone: (800) 429-5372 or (316) 676-3140. (3) You may review copies at the FAA, Central Region, Office of the Regional Counsel, 901 Locust, Kansas City, Missouri 64106; or at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html . Issued in Kansas City, Missouri, on September 24, 2007. Kim Smith, Manager, Small Airplane Directorate, Aircraft Certification Service. [FR Doc. E7-19192 Filed 10-2-07; 8:45 am] BILLING CODE 4910-13-P

This AD results from reports of a manufacturing error where certain starter-generators may have been improperly shimmed. We are issuing this AD to detect improperly shimmed starter-generators, which could result in premature starter-generator failure. This failure could lead to increased chances of dual starter-generator failure on the same flight.