Airworthiness directives › 2004-05-28
AD 2004-05-28 Airworthiness Directives; Eurocopter France Model AS 365 N3 Helicopters
Models named: AS 365 N3. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
Model AS 365 N3 helicopters, with a Quiet Fenestron tail rotor (tail rotor gearbox, part number (P/N) 365A33-6005-06, and tail rotor hub, P/N 365A33-3500-02), tail rotor hub attachment bushings, P/N 365A33-3530-20, and a reinforced control shaft, P/N 365A33-6214-20, on the tail rotor hub control shaft assembly, installed, certificated in any category.
Compliance
Within 3 months, unless accomplished previously. To prevent vibration in the tail rotor attachments and the pilot's anti-torque pedals, blade pitch control failure, and subsequent loss of control of the helicopter, accomplish the following: (a) Install a tail rotor blade (blade)-to-torsion bar attachment tuning weight assembly, P/N 365A33-3546-00, on each blade of the Quiet Fenestron tail rotor in accordance with paragraph 2, Accomplishment Instructions, of Eurocopter France Alert Service Bulletin 64.00.23, dated October 30, 2002. Replace each of the 10 blade attachment bushings, P/N 365A33-3530-20, at the same time. Do not mix the existing blade attachment bushings, P/N 365A33-3530-20, and the new tuning weight assemblies, P/N 365A33-3546-00, on the same tail rotor hub. (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 Safety Management Group, Rotorcraft Directortate, FAA, for information about previously approved alternative methods of compliance. (c) The installations shall be done in accordance with Eurocopter France Alert Service Bulletin 64.00.23, dated October 30, 2002. The Director of the Federal Register approved this incorporation by reference in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Copies may be obtained from American Eurocopter Corporation, 2701 Forum Drive, Grand Prairie, Texas 75053- 4005, telephone (972) 641-3460, fax (972) 641-3527. Copies may be inspected at the FAA, Office of the Regional Counsel, Southwest Region, 2601 Meacham Blvd., Room 663, Fort Worth, Texas; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC. (d) This amendment becomes effective on April 19, 2004. Note: The subject of this AD is addressed in Direction Generale De L'Aviation Civile (France) AD 2002-622(A), dated December 11, 2002. Issued in Fort Worth, Texas, on March 3, 2004. Scott A. Horn, Acting Manager, Rotorcraft Directorate, Aircraft Certification Service. [FR Doc. 04-5331 Filed 3-12-04; 8:45 am] BILLING CODE 4910-13-P
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