2010-16-08: Rotorcraft Cooling Fan System

2010-16-08 Schweizer Aircraft Corporation: Amendment 39-16385. Docket No. FAA-2010-0758; Directorate Identifier 2010-SW-004-AD. Applicability: Model 269D helicopters, certificated in any category. Compliance: Within 25 hours time-in-service, unless done previously. To prevent the blades of the oil cooler impeller from separating and damaging the oil cooler, leading to loss of engine and transmission oil pressure and subsequent loss of control of the helicopter, do the following: (a) Install a Scroll Housing Blade Containment Shielding Kit, part number (P/N) SA-269DK-048, on each helicopter. Note: The Schweizer Model 269D Configuration "A'' Basic Helicopter Maintenance Manual (HMI), revised April 17, 2009, contains guidance that pertains to the subject of this AD. (b) To request a different method of compliance or a different compliance time for this AD, follow the procedures in 14 CFR 39.19. Contact the Manager, New York Aircraft Certification Office, Attn: Richard P. Fiesel, Aerospace Engineer, Aviation Safety Engineer, FAA, New York Aircraft Certification Office, Airframe and Propulsion Branch, 1600 Stewart Ave., suite 410, Westbury, New York 11590, telephone (516) 228-7304, fax (516) 794-5531, for information about previously approved alternative methods of compliance. (c) The Joint Aircraft System/Component (JASC) Code is 6322: Rotorcraft Cooling Fan System. (d) This amendment becomes effective on August 20, 2010.