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Gfa 039an CANCELLED

SERVICE LIFE LIMITATION FOR GLIDERS OF FIBREGLASS REINFORCED PLASTIC CONSTRUCTION

CANCELLED 

Applicable to all gliders of GRP construction originating from, and type certified in the Federal Republic of West Germany. A part of the design justification for GRP glider structures  type certificated by the L.B.A requires that the wing structure by subjected to cyclic loads equivelent to a life of 3000 hours with a minimum factor of three to account for the random variability of such testing. This means that such tests are required to be carried out to the equivalent of 9000 hours of operation to justify a 'life' of 3000 hours.