raft nationality and registration mark and date work completed.) . REF: GULFSTREAM AEROSPACE CORPORATION WORK ORDER NO. CO2B-0151-087-2654 REPAIRED L/H ELEVATOR ASSY. P/N 1159CS20002-1 S/N 151 PER GULFSTREAM AEROSPACE CORPORATION DWG. NO. 1159CS20431•MASS BALANCE CHECK PER GULFSTREAM AEROSPACE CORPORATI CUSTOMER