0001005150-99-000211 DEF 14A 1 19990420 19990330 AES CORPORATION 0000874761 4991 541163725 DE 1231 DEF 14A 34 001-12291 99579238 1001 N 19TH ST STE 2000 ARLINGTON VA 22209 7035221315 DEF 14A 1 000100515099000211-001-seq1-def-14a.txt DEFINITIVE 14A