UNITED
STATES
SECURITIES
AND EXCHANGE COMMISSION
WASHINGTON,
DC 20549
SCHEDULE
13G(A)
UNDER THE
SECURITIES EXCHANGE ACT OF 1934
(Amendment
No.2)(1)
AeroCentury
Corp.
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(Name of
Issuer)
Common
stock
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(Title of
Class of Securities)
007737109
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(CUSIP
Number)
December
31, 2009
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(Date of
Event Which Requires Filing of this Statement)
Check
the appropriate box to designate the rule pursuant to which this Schedule is
filed:
[X] Rule
13d-1(b)
[_] Rule
13d-1(c)
[_] Rule
13d-1(d)
(1) The
remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter the
disclosures provided in a prior cover page.
The
information required in the remainder of this cover page shall not be deemed to
be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934
(“Act”) or otherwise subject to the liabilities of that section of the Act but
shall be subject to all other provisions of the Act (however, see the
Notes).
CUSIP
NO. 007737109
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1. NAME
OF REPORTING PERSONS
I.R.S.
IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)
Bridgeway
Capital Management, Inc. 76-0409332
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2. CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See instructions)
N/A
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3. SEC
USE ONLY
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4. CITIZENSHIP
OR PLACE OF ORGANIZATION
Texas
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NUMBER
OF 5. SOLE
VOTING POWER
SHARES
53,400 **See Note 1**
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BENEFICIALLY 6. SHARED
VOTING POWER
OWNED
BY
None
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EACH
7. SOLE DISPOSITIVE POWER
REPORTING
53,400 **See Note 1**
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PERSON 8. SHARED
DISPOSITIVE POWER
WITH: None
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9. AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
53,400 **See
Note 1**
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10. CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See
instructions)
N/A
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11. PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW 9
3.32%
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12. TYPE
OF REPORTING PERSON (See instructions)
IA
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Item
1(a). Name of Issuer:
AeroCentury
Corp.
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Item
1(b). Address of Issuer's Principal Executive Offices:
1440
Chapin Avenue, Ste. 310, Burlingame, CA 94010
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Item
2(a). Name of Person Filing:
Bridgeway
Capital Management, Inc.
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Item
2(b). Address of Principal Business Office, or if None,
Residence:
5615
Kirby Drive, Suite 518 Houston,
TX 77005
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Item
2(c). Citizenship:
Texas
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Item
2(d). Title of Class of Securities:
Common
stock
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Item
2(e). CUSIP Number:
007737109
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Item 3.
If This Statement is Filed Pursuant to Rule 13d-1(b), or 13d-2(b) or (c), Check
Whether the Person Filing is a:
(e) [X] An
investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E).
Item
4. Ownership.
Provide
the following information regarding the aggregate number and percentage of the
class of securities of the issuer identified in Item 1.
(a) Amount
beneficially owned:
53,400 **See
Note 1**
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(b) Percent
of class:
3.32%
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(c) Number
of shares as to which such person has:
(i) Sole
power to vote or to direct the vote 53,400 **See Note
1**,
(ii) Shared
power to vote or to direct the vote None,
(iii)
Sole power to dispose or to direct the disposition of 53,400 **See
Note 1**,
(iv) Shared
power to dispose or to direct the disposition of None.
**Note
1** Bridgeway Capital Management, Inc. (“Bridgeway”), an investment
adviser registered under Section 203 of the Investment Advisers Act of 1940,
furnishes investment advice to various investment companies and unit investment
trusts registered under Section 8 of the Investment Company Act of 1940 and to
certain separate accounts (collectively referred to herein as “Managed
Portfolios”). In its role as investment adviser or manager, Bridgeway
possesses voting and/or investment power over the securities of the Issuer
described in this schedule that are owned by the Managed Portfolios, and may be
deemed to be the beneficial owner of the shares of the Issuer held by the
Managed Portfolios. However, all securities reported in this schedule
are owned by the Managed Portfolios. Pursuant to Rule 13d-4 of the Securities
Exchange Act of 1934, as amended (the “Exchange Act”), Bridgeway disclaims
beneficial ownership of such securities. In addition, the filing of
this schedule shall not be construed as an admission that the reporting person
or any of its affiliates is the beneficial owner of any securities covered by
this Schedule 13G for any other purposes than Section 13(d) of the Exchange
Act.
Item
5. Ownership of Five Percent or Less of a Class.
If this statement is being filed to report the fact that as of the date hereof
the reporting person has ceased to be the beneficial owner of more than 5
percent of the class of securities, check the following [X].
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Item
6. Ownership of More Than Five Percent on Behalf of Another
Person.
NA
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Item 7.
Identification and Classification of the Subsidiary Which Acquired the Security
Being Reported on by the Parent Holding Company.
NA
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Item
8. Identification and Classification of
Members of the Group.
NA
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Item
9. Notice of Dissolution of Group.
NA
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Item
10. Certification.
By
signing below I certify that, to the best of my knowledge and belief, the
securities referred to above were acquired and are held in the ordinary course
of business and were not acquired and not held for the purpose of or with the
effect of changing or influencing thecontrol of the issuer of the securities and
were not acquired and are not held in connection with or as a participant in any
transaction having such purpose or effect.
SIGNATURE
After
reasonable inquiry and to the best of my knowledge and belief, I certify that
the information set forth in this statement is true, complete and correct.
BRIDGEWAY
CAPITAL MANAGEMENT, INC.
January
29, 2010
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(Date)
/s/
LINDA GIUFFRE
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(Signature)
Linda
Giuffré
CCO,
Bridgeway Capital Management, Inc.
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(Name/Title)