2011-21-18: Cyclic Control Stick

Adoption of the Amendment Accordingly, pursuant to the authority delegated to me by the Administrator, the Federal Aviation Administration amends part 39 of the Federal Aviation Regulations (14 CFR part 39) as follows: PART 39--AIRWORTHINESS DIRECTIVES 0 1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. Sec. 39.13 [Amended] 0 2. Section 39.13 is amended by adding a new airworthiness directive to read as follows: 2011-21-18 Eurocopter France: Amendment 39-16841; Docket No. FAA- 2011-0448; Directorate Identifier 2007-SW-51-AD. Applicability: Model EC 120B helicopters, serial numbers up to and including 1385, with a thrust washer, part number (P/N) C671A1006201, installed on the pilot cyclic control stick friction device; and a pilot cyclic stick, P/N C671A1007101, P/N C671A1007102, or C671A1003102, installed, certificated in any category. Compliance: Required within 30 days, unless accomplished previously. To prevent jamming of a pilot cyclic control stick and subsequent loss of control of the helicopter, accomplish the following: (a) Remove the pilot cyclic control stick; replace the thrust washer, P/N C671A1006201, with two thrust washers, P/N C671A1018201 and P/N C671A1019201; reinstall the pilot cyclic control stick; and perform a functional test of the cyclic control. (b) To request a different method of compliance or a different compliance time [[Page 75774]] for this AD, follow the procedures in 14 CFR 39.19. Contact the Manager, Safety Management Group, Rotorcraft Directorate, FAA, ATTN: Gary Roach, Aviation Safety Engineer, Regulations and Policy Group, ASW-111, 2601 Meacham Blvd., Fort Worth, Texas 76137, telephone (817) 222-5130, fax (817) 222-5961, for information about previously approved alternative methods of compliance. (c) The Joint Aircraft System/Component (JASC) Code is 2700: Flight Control System. (d) This amendment becomes effective on December 20, 2011. Note: The subject of this AD is addressed in Direction Generale de l'Aviation Civile (France) AD No. F-2005-175, dated October 26, 2005, and Eurocopter Alert Service Bulletin No. 67A011, Revision 1, dated October 24, 2005.