AD 2006-23-03 Airworthiness Directives; B-N Group Ltd. BN-2, BN-2A, BN-2B, BN-2T, and BN-2T-4R Series (All Individual Models Included in Type Certificate Data Sheet (TCDS) A17EU, Revision 16, Dated December 9, 2002) Airplanes

This AD applies to all BN-2, BN-2A, BN-2B, BN-2T, and BN-2T-4R series (all individual models included in Type Certificate Data Sheet (TCDS) A17EU, Revision 16, dated December 9, 2002) airplanes; that are certificated in any category.

To address this problem, you must do the following, unless already done:   Actions Compliance Procedures (1) Inspect the horizontal stabilizer attachment bolts and anchor nuts for damage and wear Within the next 50 hours time-in-service (TIS) or 2 months, whichever occurs first, after December 14, 2006 (the effective date of this AD) Follow B-N Britten-Norman Aircraft Limited Service Bulletin number SB 302, Issue 2, dated April 12, 2005. (2) If you find any damaged or worn horizontal stabilizer attachment bolts and/or anchor nuts during the inspection required in paragraph (e)(1) of this AD, replace with new, modified horizontal stabilizer attachment bolts as specified in the service information (or FAA-approved equivalent part) Before further flight after the inspection required in paragraph (e)(1) of this AD Follow B-N Britten-Norman Aircraft Limited Service Bulletin number SB 302, Issue 2, dated April 12, 2005. Do any necessary replacements following B-N Group Ltd. Modification Leaflet for Mod NB-M-1787, Issue 1, dated August 1, 2005. (3) If you do not find damaged or worn horizontal stabilizer attachment bolts and/or anchor nuts during the inspection required in paragraph (e)(1) of this AD, replace the horizontal stabilizer attachment bolts and anchor nuts with new, modified horizontal stabilizer attachment bolts as specified in the service information (or FAA-approved equivalent part) Upon accumulating 1,000 hours TIS after the inspection required in paragraph (e)(1) of this AD Follow B-N Group Ltd. Modification Leaflet for Mod NB-M-1787, Issue 1, dated August 1, 2005. (4) You may replace the horizontal stabilizer attachment bolts and anchor nuts with the new, modified horizontal stabilizer attachment bolts as specified in the service information (or FAA-approved equivalent part) at any time, but no later than the applicable times specified in paragraphs (e)(2) and (e)(3) of this AD. After installing the new, modified horizontal stabilizer attachment bolts, no further action is required As of December 14, 2006 (the effective date of this AD) Follow B-N Group Ltd. Modification Leaflet for Mod NB-M-1787, Issue 1, dated August 1, 2005. Alternative Methods of Compliance (AMOCs) (f) The Manager, Standards Staff, FAA, Small Airplane Directorate, ATTN: Albert J. Mercado, Aerospace Engineer, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329-4119; fax: (816) 329-4090, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. Related Information (g) MCAI United Kingdom Civil Aviation Authority AD No. G-2004-0014 R1, Effective Date: July 29, 2005, also addresses the subject of this AD. Material Incorporated by Reference (h) You must use B-N Britten-Norman Aircraft Limited Service Bulletin number SB 302, Issue 2, dated April 12, 2005, and B-N Group Ltd. Modification Leaflet for Mod NB-M-1787, Issue 1, dated August 1, 2005, 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 B-N Group Ltd., Bembridge Airport, Isle of Wight, PO35 5PR, United Kingdom; telephone: +44 (0) 1983 872511; fax: +44 (0) 1983 873246. (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 October 30, 2006. Kim Smith, Manager, Small Airplane Directorate, Aircraft Certification Service. [FR Doc. E6-18723 Filed 11-8-06; 8:45 am] BILLING CODE 4910-13-P

This AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for the United Kingdom. The actions specified in this AD are intended to detect and correct damaged and/or worn horizontal stabilizer attachment bolts and anchor nuts, which could result in failure of the horizontal stabilizer. This failure could result in loss of control.