SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): January 2, 2004 AEROCENTURY CORP. (Exact name of Registrant as specified in its charter) DELAWARE 94-3263974 (State or other jurisdiction of (I.R.S. Employer incorporation or organization) Identification No.) 1440 Chapin Avenue, Suite 310 Burlingame, CA 94010 (Address of principal executive offices) (Zip Code) 650-340-1888 (Registrant's telephone number including area code) Not applicable (Former name and former address, if changed since last report) Item 5. Other Events On January 2, 2004, the Company entered into a Joinder Agreement and Sixth Amendment to Amended and Restated Credit Agreement ("Amendment") with National City Bank, as agent, and National City Bank, California Bank & Trust and First Bank & Trust , as lenders. The Amendment provides for the addition of First Bank & Trust as an additional lender under the credit facility, and increases the maximum credit line availability to $50 million. Exhibits Exhibit 10.1 Form of Joinder Agreement and Sixth Amendment to Amended and Restated Credit Agreement SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereto duly authorized. Date: January 5, 2004 AEROCENTURY CORP. By: /s/ Neal D. Crispin Neal D. Crispin, Chairman of the Board and President