UPDATED Airworthiness Directive – Duo Discus and Nimbus 4

EASA has issued an update to AD 2015-0139 (AD 2015-0139R1) which calls for inspection of the airbrake bellcrank, drive funnels and control system in accordance with Revision 1 of Schempp-Hirth Technical Notices TN 380-2, TN 396-17, TN 868-22 or TN 890-14, as applicable. Inspection is required within 40 days and, thereafter, at intervals of not more than 100 hours. The TNs are available on the Schempp-Hirth web site.