X0101 EFFECT 33 LIVE 2010-12-15 17:00:00

S-4

0000350403 PHI INC 333-170916 0001172109 INTERNATIONAL HELICOPTER TRANSPORT INC 333-170916-11 0001172103 PHI TECH SERVICES INC 333-170916-10 0001172111 AIR EVAC SERVICES INC 333-170916-09 0001172108 PHI AIR MEDICAL INC 333-170916-08 0001172107 PETROLEUM HELICOPTER INTERNATIONAL INC 333-170916-07 0001503093 Vertilease, LLC 333-170916-06 0001503095 Leasing Source, LLC 333-170916-05 0001172106 HELICOPTER MANAGEMENT LLC 333-170916-04 0001172105 HELICOPTER LEASING LLC 333-170916-03 0001367514 HELEX, L.L.C. 333-170916-02 0001367526 Sky Leasing, L.L.C. 333-170916-01