Gfa ad 064
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By Tim Shirley Tagged in L-13, L-13A1 1088 downloads
gfa ad 064.pdf
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INSPECTION / REPAIR FIN TOP RIB
Applicable to the L-13 Blanik, all serial numbers up to 174230. Experience has shown that operations from airfields with a rough or uneven surface may lead to cracking of the fin rib carrying the rudder top mounting rib. Special inspection instructions are embodied in this directive. (See also Airworthiness Directive GFA/ AD 053).