0000950124-00-000629 SC 13G/A 1 20000214 PETROLEUM HELICOPTERS INC 0000350403 4522 720395707 LA 1231 SC 13G/A 34 005-33163 538388 2121 AIRLINE DRIVE SUITE 400 P O BOX 578 METAIRIE LA 70001-5979 5048283323 113 BORMAN DRIVE LAFAYETTE LA 70508 WOODBOURNE PARTNERS L P 0001048869 MO 1231 SC 13G/A 200 N BROADWAY SUITE 825 ST LOUIS MO 63102 3144214600 200 N BROADWAY SUITE 825 ST LOUIS MO 63102 SC 13G/A 1 000095012400000629-001-seq1-sc-13g-a.txt SCHEDULE 13G