Exhibit 21.1 As at December 31, 2003 the subsidiaries of Dunlop Standard Aerospace Holdings plc were as follows: NAME COUNTRY OF PERCENTAGE OF INCORPORATION/ OWNERSHIP REGISTRATION INTERMEDIATE HOLDING AND MANAGEMENT SERVICES COMPANIES Dunlop Standard Aerospace (UK) Limited England & Wales 100% Dunlop Standard Aerospace Overseas Investments Limited England & Wales 100% Dunlop Limited England & Wales 100% Dunlop Holdings Limited England & Wales 100% Dunlop Standard Aerospace Overseas Limited England & Wales 100% Dunlop Standard Aerospace (US) Inc. United States of America 100% Dunlop Standard Aerospace (US) Legal, Inc. United States of America 100% Dunlop Standard Aerospace (Nederland) BV Netherlands 100% Dunlop Standard Aerospace Trustee Limited England & Wales 100% DESIGN AND MANUFACTURING Dunlop Aerospace Limited England & Wales 100% Dunlop Aviation North America Inc. United States of America 100% Stewart Warner South Wind Corporation United States of America 100% Dunlop Aviation Canada Inc. Canada 100% Dunlop Aviation (SE Asia) Pte Limited Singapore 100% Dunlop Aviation Services S.A. Belgium 100% ENGINE REPAIR AND OVERHAUL Standard Aero, Inc. United States of America 100% Standard Aero (San Antonio) Inc. United States of America 100% Standard Aero (Alliance) Inc. United States of America 100% Standard Aero de Mexico S.A. de C.V. Mexico 100% Standard Aero Limited Canada 100% Standard Aero (Australia) Pty Limited Australia 100% Standard Aerospace BV Netherlands 100% Standard Aero BV Netherlands 100% Standard Aero (Asia) Pte Limited Singapore 100% Dunlop Aerospace Parts Inc. United States of America 100% DORMANT Serck Aviation Limited England & Wales 100% Standard Aero International Pty Limited Australia 100% Not FM Canada Inc Canada 100%
