AD 2006-13-10 Airworthiness Directives; Raytheon Aircraft Company 65, 90, 99, and 100 Series Airplanes

Makes named: raytheon. Read the applicability below — it usually turns on serial or part numbers too.

This AD affects the following airplane models and serial numbers that are certificated in any category: (1) Group 1 (maintains the actions from AD 92-07-05):   Model Serial Nos. (i) 65-90, 65-A90, B90, C90, and C90A LJ-1 through LJ-1280. (ii) E90 LW-1 through LW-347. (iii) 99, 99A, A99, A99A, B99, and C99 U-1 through U-136 and U-146 through U-239. (iv) 100 and A100 B1 through B-94, B-100 through B-204, and B-206 through B247. (v) B100 BE-1 through BE-137. (vi) 65-A90-1 (U-21A, JU-21A, RU-21D, RU-21H, RU-21A, U-21G) LM-1 through LM-141. (vii) 65-A90-2 (RU-21B) LS-1, LS-2, and LS-3. (viii) 65-A90-3 (RU-21C) LT-1 and LT-2. (ix) 65-A90-4 (RU-21EA, U-21H, RU-21H) LU-1 through LU-16. (x) H90 (T-44A) LL-1 through LL-61. (xi) 99A (FACH) U-137 through U-145. (xii) A100 (U-21F) B95 through B-99. (2) Group 2: Model C90A, serial numbers LJ-1281 through LJ-1732.

To address this problem, you must do the following:   Actions Compliance Procedures (1) For Group 1 Airplanes: Inspect the rudder trim tab for proper moisture drainage provisions Within 150 hours time-in-service (TIS) after April 30, 1992 (the effective date of AD 92-07-05), unless already done Follow Beech Service Bulletin No. 2365, Revision 1, dated December 1991. (2) For Group 1 Airplanes: If the correct drainage provisions do not exist, modify the rudder trim tab Before further flight after the inspection required by paragraph (e)(1) of this AD Follow Beech Service Bulletin No. 2365, Revision 1, dated December 1991. (3) For Group 2 Airplanes: Inspect the rudder trim tab for proper moisture drainage provisions Within 150 hours TIS after August 7, 2006 (the effective date of this AD), unless already done Follow Raytheon Aircraft Company Service Bulletin No. SB 55-2365, Revision 2, Issued: January 1991, Revised: October 2005. (4) For Group 2 Airplanes: If the correct drainage provisions do not exist, modify the rudder trim tab Before further flight after the inspection required by paragraph (e)(3) of this AD Follow Raytheon Aircraft Company Service Bulletin No. SB 55-2365, Revision 2, Issued: January 1991, Revised: October 2005. Alternative Methods of Compliance (AMOCs) (f) The Manager, Wichita Aircraft Certification Office (ACO), FAA, ATTN: Steven E. Potter, Aerospace Engineer, Wichita ACO, FAA, 1801 Airport Road, Wichita, Kansas 67209; telephone: (316) 946-4124; facsimile: (316) 946-4107, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. (g) AMOCs approved for AD 92-07-05 are not approved for this AD. Material Incorporated by Reference (h) You must do the actions required by this AD following the instructions in Beechcraft Mandatory Service Bulletin No. 2365, Revision 1, dated December 1991, and Raytheon Aircraft Company Service Bulletin No. SB 55-2365, Revision 2, Issued: January 1991, Revised: October 2005. The Director of the Federal Register approved the incorporation by reference of these service bulletins in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. To get a copy of this service information, contact Raytheon Aircraft Company, P.O. Box 85, Wichita, Kansas 67201-0085; telephone: (800) 429-5372 or (316) 676-3140. To review copies of this service information, go to the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, go to: http://www.archives.gov/6federal_register/code_of_federal_regulations/ibr_locations.html or call (202) 741-6030. To view the AD docket, go to the Docket Management Facility; U.S. Department of Transportation, 400 Seventh Street, SW., Nassif Building, Room PL-401, Washington, DC 20590-001 or on the Internet at http://dms.dot.gov . The docket number is FAA-2005-23319; Directorate Identifier 2005-CE-52-AD. Issued in Kansas City, Missouri, on June 13, 2006. James E. Jackson, Acting Manager, Small Airplane Directorate, Aircraft Certification Service. [FR Doc. 06-5586 Filed 6-23-06; 8:45 am] BILLING CODE 4910-13-P

This AD results from receiving and evaluating new service information that requires the actions of AD 92-07-05 for the added serial numbers LJ-1281 through LJ-1732 for the Model C90A airplanes. The actions specified in this AD are intended to prevent water accumulation in the rudder trim tab, which could result in a change in the mass properties and possibly a lower flutter speed of the airplane. A lower airplane flutter speed could result in failure and loss of control of the airplane.