pdf Gfa ad 399 Cancelled 2017.02.09 Popular
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gfa ad 399 Cancelled 9.02.2017.pdf
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INSPECTION PROGRAM FOR LIFE EXTENSION TO 12000 HOURS
CANCELLED - Refer Type Certificate Holders current data
Fatigue testing has shown that the service life of the Grob G 109 and G 109B powered sailplanes can be extended to 12000 hours provided each sailplane can be shown to be airworthy according to an established inspection procedure. Grob Service Bulletin TM 817-28 refers.