02+151076-527%.dated 9 -March::1974., 'References :' - . •. . ••• •••1 Airworthines4.Directive 7k-17-05 "Reactivate, ground spoiler 2. • . ,Grumman .American Aviation Corporation Service Cnange No. 180 #.L..&.#2 Reactivate ground spoiler r,system".. ' Safe-rflight "Speed Control Automate' Throttle" modification F.A.A. • S.T.C. No. "SA7222A".