Airworthiness directives › 2006-06-02
AD 2006-06-02 Airworthiness Directives; Eurocopter France Model SA-365N, SA-365N1, AS-365N2, and SA-366G1 Helicopters
Models named: SA-365N, SA365N1, AS-365N2, SA-366G1. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
Model SA-365N, SA365N1, AS-365N2, and SA-366G1 helicopters with a main gearbox (MGB) suspension diagonal cross-member (diagonal cross-member), part number (P/N) 365A38-3023-20, -21, -22, -23, or -24, installed, certificated in any category.
Compliance
Required as indicated, unless accomplished previously. To prevent failure of the diagonal cross-member, pivoting of the MGB, severe vibrations, and subsequent forced landing, do the following: (a) For Model SA-365N and SA-365N1 helicopters, before accumulating 15,000 operating cycles; and for Model AS-365N2 and SA-366G1 helicopters, before accumulating 11,000 operating cycles: (1) Inspect the diagonal cross-member for a crack in the area of the center borehole. Use a borescope with a 90-degree drive, a video assembly with optical fiber illumination, or any other appropriate device that allows you to visually inspect the center area of the part. (2) Repeat the inspection required by paragraph (a)(1) of this AD at intervals not to exceed 250 operating cycles or 50 hours time-in-service, whichever occurs first. Note 1: “Operating cycles” are defined in the Airworthiness Limitations Section of the Master Servicing Recommendations. (b) If a crack is found as a result of the inspections required by this AD, before further flight, replace the diagonal cross-member with an airworthy diagonal cross-member. (c) 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 Rotorcraft Directorate, FAA, ATTN: Gary Roach, Aviation Safety Engineer, Regulations and Guidance Group, Fort Worth, Texas 76193-0111, telephone (817) 222-5130, fax (817) 222-5961, for information about previously approved alternative methods of compliance. (d) This amendment becomes effective on April 17, 2006. Note 2: The subject of this AD is addressed in Direction Generale De L-Aviation Civile (France) AD 1997-093-041(A) R2, dated June 25, 2003, and 2003-241(A), dated June 25, 2003. Issued in Fort Worth, Texas, on March 1, 2006. David A. Downey, Manager, Rotorcraft Directorate, Aircraft Certification Service. [FR Doc. 06-2358 Filed 3-10-06; 8:45 am] BILLING CODE 4910-13-P
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1