86-02-04 CENTRAIR SAILPLANES: Amendment 39-5208. Applies to Centrair Model 101, 101A, 101P and 101AP gliders certificated in any category. \n\n\tCompliance is required within 30 days after the effective date of this AD, unless already accomplished. \n\n\tTo prevent unintended release of the tow cable hook during takeoff, accomplish the following in accordance with figures 1 and 2: \n\n\t(a)\tInsure that the tow release cable guide is mounted on the back of the bulkhead (fig. 2). If the guide is mounted on the front of the bulkhead (fig. 1), remount it on the back. \n\n\t(b)\tCheck dimension A (fig. 2) for proper neutral travel. (A minimum of 13/64" and a maximum of 18/64".) If dimension A is not found to be within this range: \n\n\t\t(1)\tOn gliders equipped with a rear tow hook only, adjust the threaded end fittings (no. 1, fig. 2). \n\n\t\t(2)\tOn gliders equipped with a front tow hook only, replace the cable (no. 4, fig. 2) with a new one (Centrair P/N 101 150 0003 025). \n\n\t\t(3)\tOn gliders with front and rear hooks replace the cable (no. 4, fig. 2) with a new one (Centrair P/N 101 150 0003 025) and adjust the threaded end fittings so that the tension is identical on the two hooks and they release together. \n\n\t(c)\tAfter completing paragraph (b), check dimension B (fig. 2) for proper neutral travel (a minimum of 30/64" and a maximum of 35/64"). If dimension B is not found to be within this range: \n\n\t\t(1)\tOn gliders with a rear tow hook only and with a plastic tube between the release cable fitting and the cable guide (no. 3, fig. 2) adjust by shortening the plastic tube and/or adjusting the threaded end fittings (no. 1, fig. 2). If there is no plastic tube, adjust the threaded end fittings. If proper neutral travel cannot be obtained, replace the control cable (no. 2, fig. 2) with a new one (Centrair P/N 101 150 0003 024). \n\n\t\t(2)\tOn gliders with front and rear hooks, or with a front hook only, and with the plastic tube, shorten the tube. If there is no tube or no neutral travel cannot be obtained, replace the control cable (no. 2, fig. 2) with a new one (Centrair P/N 101 150 0003 024). \n\n\t\t(3)\tRepeat paragraphs (b) and (c) to determine that the proper ranges of neutral travel for dimensions A and B (fig. 2) are simultaneously met. \n\n\tNOTE: Centrair SB No. 101-5 dated December 19, 1984, addresses this subject. \n\n\tUpon request, an equivalent means of compliance with the requirements of this AD may be approved by the Manager, Brussels Aircraft Certification Office, AEU-100, Europe, Africa, and Middle East Office, Federal Aviation Administration, c/o American Embassy, 1000 Brussels, Belgium, telephone 513.38.30, x2710. \n\n\tUpon submission of substantiating data by an owner or operator through an FAA maintenance inspector, the Manager, Brussels Aircraft Certification Office may adjust the compliance time specified in this AD. \n\n\tThis amendment becomes effective on January 14, 1986. \n\nAD 86-02-04\n\nINCORRECT INSTALLATION\nCableguide mounted on the front of the bulkhead