0001193125-17-352377 8-K 1 20171123 8.01 20171127 20171127 PHI INC 0000350403 4522 720395707 LA 1231 8-K 34 000-09827 171222915 2001 SE EVANGELINE THRUWAY - LAFAYETTE LA 70508 (337) 235-2452 PO BOX 90808 LAFAYETTE LA 70509 PETROLEUM HELICOPTERS INC 19920703 8-K 1 d466731d8k.htm 8-K