UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 AIRCASTLE LIMITED (Exact name of registrant as specified in its charter) Bermuda 98-0444035 - -------------------------------------------------------------------------------- (State of incorporation (I.R.S. Employer or or organization) Identification No.) c/o Aircastle Advisor LLC 300 First Stamford Place Stamford, Connecticut 06902 - -------------------------------------------------------------------------------- (Address of principal executive offices) (Zip Code) Securities to be registered pursuant to Section 12(b) of the Act: Title of each class Name of each exchange on which to be so registered each class is to be registered ------------------- ------------------------------ Common shares, par value $0.01 per share New York Stock Exchange If this Form 8-A relates to the registration of a class of securities pursuant to Section 12(b) of the Exchange Act and is effective upon filing pursuant to General Instruction A.(c), please check the following box. [X] If this Form 8-A relates to the registration of a class of securities pursuant to Section 12(g) of the Exchange Act and is to become effective General Instruction A.(d), please check the following box. [ ] Securities Act registration statement file number to which this form relates: 333-134669 Securities to be registered pursuant to Section 12(g) of the Act: None. INFORMATION REQUIRED IN REGISTRATION STATEMENT Item 1. Description of Registrant's Securities to be Registered. - ---------------------------------------------------------------- For a description of the securities to be registered hereunder, reference is made to the information set forth under the heading "Description of Capital Stock" in the Registrant's Prospectus, which constitutes a part of the Registrant's Registration Statement on Form S-1, as amended (File No. 333-134669) (the "Registration Statement"), filed under the Securities Act of 1933, as amended, which information is hereby incorporated herein by reference. Item 2. Exhibits. - ----------------- Not applicable. 3 SIGNATURE Pursuant to the requirements of Section 12 of the Securities Exchange Act of 1934, the Registrant has duly caused this registration statement to be signed on its behalf by the undersigned, thereto duly authorized. AIRCASTLE LIMITED (Registrant) Dated: July 25, 2006 By: /s/ Mark Zeidman ----------------- Name: Mark Zeidman Title: Chief Financial Officer