UNITED STATES
                       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): August 15, 2005

                          CHASE AUTO OWNER TRUST 2005-A
                             (Issuer of securities)

                      CHASE BANK USA, NATIONAL ASSOCIATION
             ------------------------------------------------------
             (Exact name of registrant as specified in its charter)

United States                     333-109768-03             22-2382028
-----------------------------     ---------------------     --------------------
(State or other jurisdiction      (Commission               (IRS Employer
of incorporation)                 File Number)              Identification No.)

White Clay Center, Building 200, Newark, DE          19711
------------------------------------------------------------------------
(Address of principal executive offices)             (Zip Code)

Registrant's telephone number, including area code:  (302) 575-5000

--------------------------------------------------------------------------------
(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2. below):

|_|   Written communications pursuant to Rule 425 under the Securities Act (17
      CFR 230.425)

|_|   Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
      240.14a-12)

|_|   Pre-commencement communications pursuant to Rule 14d-2(b) under the
      Exchange Act (17 CFR 240.14d-2(b))

|_|   Pre-commencement communications pursuant to Rule 13e-4(c) under the
      Exchange Act (17 CFR 240.13e-4(c))
<PAGE>

Section 8 - Other Events

Item 8.01 Other Events.

Chase Bank USA, National Association is the registrant of the Chase Auto Owner
Trust, Series 2005-A ("Series 2005-A"), which issued multiple classes of Asset
Backed Securities. On or about August 15, 2005, JPMorgan Chase Bank, National
Association, as Paying Agent, made the payments to the holders of the Securities
of Series 2005-A contemplated by the related Indenture.

A copy of the Monthly Statement to Securityholders with respect to such
distribution, delivered pursuant to the related Sale and Servicing Agreement, is
being filed as an exhibit to this Current Report on Form 8-K.

Section 9 - Financial Statements and Exhibits

Item 9.01 Financial Statements and Exhibits.

(c)   Exhibits.

Exhibit No.       Description
-----------       -----------

      99.1        Monthly Reports with respect to the August 15, 2005
                  distribution.

<PAGE>

                                   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 hereunto duly authorized.

                                CHASE BANK USA,
                                NATIONAL ASSOCIATION, as Servicer


                                By: /s/ Patricia M. Garvey
                                    ---------------------------------
                                Name: Patricia M. Garvey
                                Title:  Vice President
                                Date: August 19, 2005

<PAGE>

                                INDEX TO EXHIBITS
                                -----------------

Exhibit No.       Description
-----------       -----------

      99.1        Monthly Reports with respect to the distribution to
                  Securityholders on August 15, 2005.
{"company-data": {"conformed-name": "Chase Auto Owner Trust 2005-A", "cik": "0001329285", "assigned-sic": "6189", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "333-109768-03", "film-number": "051040300"}, "business-address": {"street1": "802 DELAWARE AVE", "street2": "13TH FLOOR", "city": "WILMINGTON", "state": "DE", "zip": "19801", "phone": "3025755033"}, "mail-address": {"street1": "802 DELAWARE AVE 13TH FL", "city": "WILMINGTON", "state": "DE", "zip": "19801"}}
UNITED STATES
                       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): August 15, 2005

                          CHASE AUTO OWNER TRUST 2005-A
                             (Issuer of securities)

                      CHASE BANK USA, NATIONAL ASSOCIATION
             ------------------------------------------------------
             (Exact name of registrant as specified in its charter)

United States                     333-109768-03             22-2382028
-----------------------------     ---------------------     --------------------
(State or other jurisdiction      (Commission               (IRS Employer
of incorporation)                 File Number)              Identification No.)

White Clay Center, Building 200, Newark, DE          19711
------------------------------------------------------------------------
(Address of principal executive offices)             (Zip Code)

Registrant's telephone number, including area code:  (302) 575-5000

--------------------------------------------------------------------------------
(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2. below):

|_|   Written communications pursuant to Rule 425 under the Securities Act (17
      CFR 230.425)

|_|   Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
      240.14a-12)

|_|   Pre-commencement communications pursuant to Rule 14d-2(b) under the
      Exchange Act (17 CFR 240.14d-2(b))

|_|   Pre-commencement communications pursuant to Rule 13e-4(c) under the
      Exchange Act (17 CFR 240.13e-4(c))
Section 8 - Other Events

Item 8.01 Other Events.

Chase Bank USA, National Association is the registrant of the Chase Auto Owner
Trust, Series 2005-A ("Series 2005-A"), which issued multiple classes of Asset
Backed Securities. On or about August 15, 2005, JPMorgan Chase Bank, National
Association, as Paying Agent, made the payments to the holders of the Securities
of Series 2005-A contemplated by the related Indenture.

A copy of the Monthly Statement to Securityholders with respect to such
distribution, delivered pursuant to the related Sale and Servicing Agreement, is
being filed as an exhibit to this Current Report on Form 8-K.

Section 9 - Financial Statements and Exhibits

Item 9.01 Financial Statements and Exhibits.

(c)   Exhibits.

Exhibit No.       Description
-----------       -----------

      99.1        Monthly Reports with respect to the August 15, 2005
                  distribution.
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 hereunto duly authorized.

                                CHASE BANK USA,
                                NATIONAL ASSOCIATION, as Servicer

                                By: /s/ Patricia M. Garvey
                                    ---------------------------------
                                Name: Patricia M. Garvey
                                Title:  Vice President
                                Date: August 19, 2005
INDEX TO EXHIBITS
                                -----------------

Exhibit No.       Description
-----------       -----------

      99.1        Monthly Reports with respect to the distribution to
                  Securityholders on August 15, 2005.