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Gfa 002an issue 3

MISCELLANEOUS AIRWORTHINESS INFORMATION - SZD-9bis BOCIAN 1D and 1E 

APPROVED MODIFICATIONS: 1. Bulletin BE-09/77 Bocian describes the optional installation of an inspection hole in the root rib behind the rear spar fitting. DEFECTS: 1. Bulletin BR-001/70 Bocian was issued in 1971 and required the mandatory inspection of the rear fuselage for manufacturing defects of all 1D Bocians and 1E Bocians up to serial number P-530. 2. Bulletin BK-005/73 Bocian required the replacement of the axle clamping bolt to prevent damage to the axle clamps on all 1E Bocians. 3. Bulletin BE-06/75 Bocian required the replacement of the lower rudder fittings on all Bocian 1D and Bocian 1E up to works number 716. 4. Bulletin NR-008/76 Bocian describes the possibility of the rudder control cable dismounting from the pulley attached to number 7 bulkhead on 1E Bocians up to serial number P-753. 5.Bulletin BK-14/78 describes the adjustment of the airbrake stops in Bocian 1E however the English is so poor it is difficult to know what was required. It is however possible to determine that one of the requirements was to fit a rubber block to the front seat pan to act as an out stop. 6. There has been one report in Australia of failure of the front cockpit airbrake lever. The lever is quite long and is made of mild steel so that it is possible to overload the lever when applying the wheel brake.