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): October 29, 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 2.02:  Earnings Announcement

On October 29, 2004,  AeroCentury  Corp.  (the  "Company")  announced  via press
release the Company's preliminary results for its second quarter ended September
30, 2004. A copy of the Company's  press  release is attached  hereto as Exhibit
99.1. This Form 8-K and the attached  exhibit are provided under Item 12 of Form
8-K and are  furnished  to, but not filed  with,  the  Securities  and  Exchange
Commission.

 Exhibits

 Exhibit 99.1          9/29/2004 Second Quarter Earnings Press Release


 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: September 29, 2004

 AEROCENTURY CORP.

 By: /s/ Neal D. Crispin

 Neal D. Crispin,
 Chairman of the Board and President