0000902219-99-000239 SC 13G/A 1 19990209 CENTRAL SPRINKLER CORP 0000766041 3490 232328106 PA 1031 SC 13G/A 34 005-37077 99525045 451 N CANNON AVE LANSDALE PA 19446 2153620700 451 N CANNON AVE LANDSDALE PA 19446 WELLINGTON MANAGEMENT CO LLP 0000902219 0000 042683227 MA 1231 SC 13G/A 75 STATE STREET BOSTON MA 02109 6179515000 75 STATE STREET BOSTON MA 02109 WELLINGTON MANAGEMENT CO 19930426 SC 13G/A 1 000090221999000239-001-seq1-sc-13g-a.txt 13G FILING