ity and registration mark and date work completed.) 1833 Landings..; Reference Gulfstream American Corporation Woiksorder No.'"'CO2 -151 -082 -2079' Incorporated Gulfstream American Corporation Aircraft Service Change No. 216 "Spied Brakes with Flaps and/or Landing Gear' Additional Warning" in conjunc- tion with (S.T.C. SA 23665W).BIGI Lighted Speed Brake Handle Mod.