4 . . INSTALL LIFELINE ATTACHMENT MOD. ON WING.PER GULFSTREAM AEROSPACE CORPORATION DWG.#'1159RDF631 REPAIR V. FIN R. BEAM DEV. TO ASC 231 SP 50G DEV. AV 25006 DEV. TO ASC 294 , DEV. AOA W.D. LOG. NUTCRACKER W.O. STALL BARRIER SYSTEM SE 21318004-01 A.F.M.S. REQUIRED G -IIB -82-001 RETRACTAB