2005-17-06: Engine air intake assembly

2005-17-06 Turbomeca: Amendment 39-14227. Docket No. FAA-2005-20849; Directorate Identifier. 2005-NE-04-AD. Effective Date (a) This airworthiness directive (AD) becomes effective September 27, 2005. Affected ADs (b) None. Applicability: (c) This AD applies to Turbomeca Artouste III B, B1, and D turboshaft engines. These engines are installed on, but not limited to, Aerospatiale (Eurocopter--France) SA-315B LAMA, and Alouette III SA3160, SA-316B, and SA-316C helicopters. Unsafe Condition (d) This AD results from a report of an in-flight shutdown and subsequent loss of control of the helicopter, due to ice ingestion into the engine. We are issuing this AD to prevent ice ingestion into the engine, which could lead to an in-flight shutdown and subsequent loss of control of the helicopter. Compliance: (e) You are responsible for having the actions required by this AD performed within nine months after the effective date of this AD, unless the actions have already been done. Addition of Water Drain Holes (Turbomeca Modification TU 171A) (f) Within nine months from the effective date of this AD, drill two additional water drain holes in each engine air intake assembly half-cover, using paragraph 2.B. and the air intake assembly dimensional flat view of Turbomeca Artouste III Mandatory Service Bulletin No. 218 72 0104, Update No. 1, dated March 25, 2005. Alternative Methods of Compliance (g) The Manager, Engine Certification Office, has the authority to approve alternative methods of compliance for this AD if requested using the procedures found in 14 CFR 39.19. Related Information (h) DGAC airworthiness directive F-2003-455, dated December 24, 2003, also addresses the subject of this AD. Material Incorporated by Reference (i) You must use Turbomeca Artouste III Mandatory Service Bulletin No. 218 72 0104, Update No. 1, dated March 25, 2005, to perform the actions required by this AD. The Director ofthe Federal Register approved the incorporation by reference of this service bulletin in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Contact Turbomeca, 40220 Tarnos, France; telephone +33 05 59 74 40 00, fax +33 05 59 74 45 15, for a copy of this service information. You may review copies at the Docket Management Facility; U.S. Department of Transportation, 400 Seventh Street, SW., Nassif Building, Room PL-401, Washington, DC 20590-0001, on the internet at http://dms.dot.gov, 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/cfr/ibr-locations.html .