75-17-23 R2: Landing Gear Operating Mech.

75-17-23 R2 SIAI-MARCHETTI: Amendment 39-2328 as amended by Amendment 39-4612 is further amended by Amendment 39-5139. Applies to Models S205-18F, S205-18R, S205-20F, S205-20R, S205-22R, S208, and S208A airplanes certificated in any category. Compliance is required as indicated. To detect cracks which could result in the possible failure of the landing gear operating mechanism, accomplish the following: (a) Within the next 25 hours time in service after the effective date of this AD, unless already accomplished within the last 75 hours time in service, and thereafter at intervals not to exceed 100 hours time in service from the last inspection, inspect the internal wing rib brackets, P/N's 205-3-033-18 and 205-3-034-18 for cracks in accordance with Instructions Paragraph (a) of SIAI Marchetti Service Bulletin No. 205B37D, dated March 15, 1985, or an FAA-approved equivalent. (b) If cracks are found during an inspection required by Paragraph (a) of this AD that are in excess of 10 mm (0.394 inch) in length, before further flight comply with the following: (1) Replace the affected brackets with new brackets of the same part number. (2) Unless already accomplished replace the associated washers, P/N AN960-516L, with new design countersunk washers, P/N 205-3-053-16, in accordance with Instructions Paragraph (b) of SIAI Marchetti Service Bulletin No. 205B37D, dated March 15, 1985, or an FAA-approved equivalent. (c) Following accomplishment of Paragraph (b) of this AD continue to inspect in accordance with Paragraph (a) of this AD until brackets P/N 205-3-033-18 and 205-3-034-18 are replaced by new brackets P/N 205-3-313-11 and P/N 205-3-313-12 in accordance with Instructions Paragraph (b) of SIAI-Marchetti Service Bulletin S/B No. 205B37D, dated March 15, 1985. Amendment 39-2328 became effective August 20, 1975. Amendment 39-4612 became effective April 14, 1983. This Amendment 39-5139 becomes effective September 27, 1985.