Petroleum Helicopters, Inc. v. Avco Corp808 F.2d 1520 5th Cir.1987Check TreatmentCheck Treatment808 F.2d 1520 Petroleum Helicopters, Inc.v.Avco Corp. 86-4144 United States Court of Appeals,Fifth Circuit. 1/6/87 W.D.La., 804 F.2d 1367