X0101 EFFECT 33 LIVE 2013-07-03 10:00:00

S-4

0001260221 TransDigm Group INC 333-186494 0000007340 ARKWIN INDUSTRIES INC 333-186494-42 0001580072 Whippany Actuation Systems, LLC 333-186494-41 0001077670 TRANSDIGM INC 333-186494-40 0001077673 MarathonNorco Aerospace, Inc. 333-186494-39 0001377127 Skurka Aerospace Inc. 333-186494-38 0001084402 ADAMS RITE AEROSPACE INC 333-186494-37 0001377125 Avionic Instruments LLC 333-186494-36 0001378716 CDA INTERCORP LLC 333-186494-35 0001403204 Aviation Technologies, Inc. 333-186494-34 0001403202 Transicoil LLC 333-186494-33 0001404922 AeroControlex Group, Inc. 333-186494-32 0000714124 AvtechTyee, Inc. 333-186494-31 0001403770 Malaysian Aerospace Services, Inc. 333-186494-30 0001486752 ACME Aerospace, Inc. 333-186494-29 0001486781 Dukes Aerospace, Inc. 333-186494-28 0001518071 Western Sky Industries, LLC 333-186494-27 0001518069 Semco Instruments, Inc. 333-186494-26 0001518068 McKechnie Aerospace US LLC 333-186494-25 0001518067 McKechnie Aerospace Investments, Inc. 333-186494-24 0001518066 McKechnie Aerospace Holdings, Inc. 333-186494-23 0001518065 McKechnie Aerospace DE, Inc. 333-186494-22 0001142160 CHAMPION AEROSPACE LLC 333-186494-21 0001518064 Hartwell Corp 333-186494-20 0001567706 Bridport Holdings, Inc. 333-186494-19 0001567717 Bridport Erie Aviation, Inc. 333-186494-18 0001567722 Bridport-Air Carrier, Inc. 333-186494-17 0001567701 Harco Laboratories, Inc. 333-186494-16 0001567702 AP Global Holdings, Inc. 333-186494-15 0001486784 Bruce Aerospace, Inc. 333-186494-14 0001486783 CEF Industries, LLC 333-186494-13 0001486857 Bruce Industries, Inc. 333-186494-12 0001518070 Texas Rotronics, Inc. 333-186494-11 0001567704 AP Global Acquisition Corp. 333-186494-10 0001567705 AmSafe Industries, Inc. 333-186494-09 0001567707 AmSafe, Inc. 333-186494-08 0001567715 AmSafe Commercial Products, Inc. 333-186494-07 0001567743 AmSafe - C Safe, Inc. 333-186494-05 0001529276 Schneller Holdings LLC 333-186494-04 0001529278 Schneller LLC 333-186494-03 0001529277 Schneller International Sales Corp. 333-186494-02 0001418099 AmSafe Global Holdings Inc 333-186494-01