X0101 EFFECT 33 LIVE 2017-05-24 14:00:00

S-4

0001260221 TransDigm Group INC 333-217850 0001518068 McKechnie Aerospace US LLC 333-217850-59 0001518065 McKechnie Aerospace DE, Inc. 333-217850-58 0001518067 McKechnie Aerospace Investments, Inc. 333-217850-57 0001518070 Texas Rotronics, Inc. 333-217850-56 0001518071 Electromech Technologies LLC 333-217850-55 0001614964 Airborne Systems North America of NJ Inc. 333-217850-54 0001529278 Schneller LLC 333-217850-53 0001567701 HARCO LLC 333-217850-52 0001486752 ACME Aerospace, Inc. 333-217850-51 0001567706 Bridport Holdings, Inc. 333-217850-50 0001567717 Bridport Erie Aviation, Inc. 333-217850-49 0001567707 AmSafe, Inc. 333-217850-48 0001567722 Bridport-Air Carrier, Inc. 333-217850-47 0000007340 ARKWIN INDUSTRIES INC 333-217850-46 0001614930 Aerosonic LLC 333-217850-45 0001614966 Airborne Global Inc. 333-217850-44 0001580072 Whippany Actuation Systems, LLC 333-217850-43 0001614965 Airborne Acquisition, Inc. 333-217850-42 0001614968 Airborne Systems North America Inc. 333-217850-41 0001615730 Airborne Holdings, Inc. 333-217850-40 0001614967 Airborne Systems NA Inc. 333-217850-39 0001614963 Airborne Systems North America of CA Inc. 333-217850-38 0001638075 Telair US LLC 333-217850-37 0001657901 Pexco Aerospace, Inc. 333-217850-36 0001657904 PneuDraulics, Inc. 333-217850-35 0001639209 Telair International LLC 333-217850-34 0001077670 TRANSDIGM INC 333-217850-33 0001077673 MarathonNorco Aerospace, Inc. 333-217850-32 0001706089 North Hills Signal Processing Corp. 333-217850-31 0001706090 North Hills Signal Processing Overseas Corp. 333-217850-30 0001704630 Interiors in Flight LLC 333-217850-29 0001704586 SCHROTH Safety Products LLC 333-217850-28 0001689276 Data Device Corp 333-217850-27 0000099359 BREEZE-EASTERN LLC 333-217850-26 0001689284 Beta Transformer Technology Corp 333-217850-25 0001689285 Beta Transformer Technology LLC 333-217850-24 0001689430 Johnson Liverpool LLC 333-217850-23 0001567715 Shield Restraint Systems, Inc. 333-217850-22 0001142160 CHAMPION AEROSPACE LLC 333-217850-21 0001486781 Dukes Aerospace, Inc. 333-217850-20 0001486784 Bruce Aerospace, Inc. 333-217850-19 0001486783 CEF Industries, LLC 333-217850-18 0001518069 Semco Instruments, Inc. 333-217850-17 0001518064 Hartwell Corp 333-217850-16 0001518066 McKechnie Aerospace Holdings, Inc. 333-217850-15 0001377127 Skurka Aerospace Inc. 333-217850-14 0001084402 ADAMS RITE AEROSPACE INC 333-217850-13 0001377125 Avionic Instruments LLC 333-217850-12 0001378716 CDA INTERCORP LLC 333-217850-11 0001403204 Aviation Technologies, Inc. 333-217850-10 0001403202 Transicoil LLC 333-217850-09 0001404922 AeroControlex Group, Inc. 333-217850-08 0000714124 AvtechTyee, Inc. 333-217850-07 0001614971 Avionics Specialties, Inc. 333-217850-06 0001689271 ILC Industries, LLC 333-217850-05 0001689277 Tactair Fluid Controls, Inc. 333-217850-04 0001689275 Young & Franklin Inc. 333-217850-03 0001689429 ILC Holdings, Inc. 333-217850-02 0001418099 AmSafe Global Holdings Inc 333-217850-01