LISTING OF SUBSIDIARY GUARANTORS
TransDigm Group Incorporated has unconditionally guaranteed, on a joint and several basis, each of the following registered debt securities with each of the subsidiaries listed below under "Subsidiary Guarantors."
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| Registered Debt Securities |
| 8.00% Senior Secured Notes due 2025 (2025 Secured Notes) |
| 6.375% Senior Subordinated Notes due 2026 (6.375% 2026 Notes) |
| 6.875% Senior Subordinated Notes due 2026 (6.875% 2026 Notes) |
| 6.25% Senior Secured Notes due 2026 (2026 Secured Notes) |
| 7.50% Senior Subordinated Notes due 2027 (7.50% 2027 Notes) |
| 5.50% Senior Subordinated Notes due 2027 (5.50% 2027 Notes) |
| 4.625% Senior Subordinated Notes due 2029 (4.625% 2029 Notes) |
| 4.875% Senior Subordinated Notes due 2029 (4.875% 2029 Notes) |
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| Subsidiary Guarantors | | Jurisdiction of Incorporation or Organization |
| 17111 Waterview Pkwy LLC | | Delaware |
| Acme Aerospace, Inc. | | Delaware |
| Adams Rite Aerospace, Inc. | | California |
| AeroControlex Group, Inc. | | Delaware |
| Aerosonic LLC | | Delaware |
| Airborne Acquisition, Inc. | | Delaware |
| Airborne Global, Inc. | | Delaware |
| Airborne Holdings, Inc. | | Delaware |
| Airborne Systems NA Inc. | | Delaware |
| Airborne Systems North America Inc. | | Delaware |
| Airborne Systems North America of CA Inc. | | Delaware |
| Airborne Systems North America of NJ Inc. | | New Jersey |
| AmSafe Global Holdings, Inc. | | Delaware |
| AmSafe, Inc. | | Delaware |
| Angus Electronics Co. | | Delaware |
| Apical Industries, Inc. | | Delaware |
| Arkwin Industries, Inc. | | New York |
| Armtec Countermeasures Co. | | Delaware |
| Armtec Countermeasures TNO Co. | | Delaware |
| Armtec Defense Products Co. | | Delaware |
| Auxitrol Weston USA, Inc. | | Delaware |
| Aviation Technologies, Inc. | | Delaware |
| Avionic Instruments LLC | | Delaware |
| Avionics Specialties, Inc. | | Virginia |
| AvtechTyee, Inc. | | Washington |
| Beta Transformer Technology Corporation | | New York |
| Beta Transformer Technology LLC | | Delaware |
| Breeze-Eastern LLC | | Delaware |
| Bridport Erie Aviation, Inc. | | Delaware |
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| Subsidiary Guarantors | | Jurisdiction of Incorporation or Organization |
| Bridport Holdings, Inc. | | Delaware |
| Bridport-Air Carrier, Inc. | | Washington |
| Bruce Aerospace Inc. | | Delaware |
| CDA InterCorp LLC | | Florida |
| CEF Industries, LLC | | Delaware |
| Century Helicopters, Inc. | | Colorado |
| Champion Aerospace LLC | | Delaware |
| Chelton Avionics Holdings, Inc. | | Delaware |
| Chelton Avionics, Inc. | | Delaware |
| CMC Electronics Aurora LLC | | Delaware |
| Chelton Defense Products, Inc. | | Delaware |
| Dart Buyer, Inc. | | Delaware |
| Dart Helicopter Services, Inc. | | Delaware |
| Dart Intermediate, Inc. | | Delaware |
| Dart TopCo, Inc. | | Delaware |
| Data Device Corporation | | Delaware |
| Dukes Aerospace, Inc. | | Delaware |
| Electromech Technologies LLC | | Delaware |
| Esterline Europe Company LLC | | Delaware |
| Esterline International Company | | Delaware |
| Esterline Technologies Corporation | | Delaware |
| Esterline Technologies SGIP LLC | | Delaware |
| Extant Components Group Holdings, Inc. | | Delaware |
| Extant Components Group Intermediate, Inc. | | Delaware |
| HarcoSemco LLC | | Connecticut |
| Hartwell Corporation | | California |
| Heli Tech Inc. | | Oregon |
| Hytek Finishes Co. | | Delaware |
| ILC Holdings, Inc. | | Delaware |
| Janco Corporation | | California |
| Johnson Liverpool LLC | | Delaware |
| Kirkhill Inc. | | Delaware |
| Korry Electronics Co. | | Delaware |
| Leach Holding Corporation | | Delaware |
| Leach International Corporation | | Delaware |
| Leach Mexico Holding LLC | | Delaware |
| Leach Technology Group, Inc. | | Delaware |
| MarathonNorco Aerospace, Inc. | | Delaware |
| Mason Electric Co. | | Delaware |
| McKechnie Aerospace DE, Inc. | | Delaware |
| McKechnie Aerospace Holdings, Inc. | | Delaware |
| McKechnie Aerospace US LLC | | Delaware |
| NAT Seattle Inc. | | Delaware |
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| Subsidiary Guarantors | | Jurisdiction of Incorporation or Organization |
| NMC Group, Inc. | | California |
| Nordisk Aviation Products LLC | | Delaware |
| North Hills Signal Processing Corp. | | Delaware |
| North Hills Signal Processing Overseas LLC | | Delaware |
| Norwich Aero Products, Inc. | | New York |
| Offshore Helicopter Support Services, Inc. | | Louisiana |
| Palomar Products, Inc. | | Delaware |
| Paravion Technologies Inc. | | Oregon |
| Pexco Aerospace, Inc. | | Delaware |
| PneuDraulics, Inc. | | California |
| Schneller LLC | | Delaware |
| Semco Instruments, Inc. | | Delaware |
| Shield Restraint Systems, Inc. | | Delaware |
| Simplex Manufacturing Co. | | Oregon |
| Skandia, Inc. | | Illinois |
| Skurka Aerospace, Inc. | | Delaware |
| Symetrics Industries, LLC | | Florida |
| Symetrics Technology Group, LLC | | Florida |
| TA Aerospace Co. | | California |
| Tactair Fluid Controls, Inc. | | New York |
| TDG ESL Holdings Inc. | | Delaware |
| TEAC Aerospace Holdings, Inc. | | Delaware |
| TEAC Aerospace Technologies, Inc. | | Delaware |
| Telair US LLC | | Delaware |
| Texas Rotronics, Inc. | | Texas |
| (1) | TransDigm Inc. | | Delaware |
| (1) | TransDigm UK Holdings plc | | United Kingdom |
| Transicoil LLC | | Delaware |
| Whippany Actuation Systems, LLC | | Delaware |
| Young & Franklin Inc. | | New York |
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| (1) | Entity is also a subsidiary issuer. |
