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):  November 26, 2004

                    BEAR STEARNS ASSET BACKED SECURITIES TRUST
                 Asset Backed Certificates, Series 2003-AC7 Trust
              (Exact name of registrant as specified in its charter)

New York (governing law of            333-91334-17        54-2139189
Pooling and Servicing Agreement)      (Commission         54-2139190
(State or other                       File Number)        54-2139191
jurisdiction                                              IRS EIN
of Incorporation)



       c/o Wells Fargo Bank, N.A.,
       9062 Old Annapolis Road
       Columbia, MD                                         21045
       (Address of principal executive offices)             (Zip Code)

       Registrant's telephone number, including area code:  (410) 884-2000

       (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))


ITEM 8.01  Other Events

 On November 26, 2004 a distribution was made to holders of BEAR STEARNS ASSET
 BACKED SECURITIES TRUST, Asset Backed Certificates, Series 2003-AC7 Trust.


ITEM 9.01  Financial Statements and Exhibits

      (c)  Exhibits


           Exhibit Number          Description
           EX-99.1                 Monthly report distributed to holders of
                                   Asset Backed Certificates, Series
                                   2003-AC7 Trust, relating to the November
                                   26, 2004 distribution.



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.




                    BEAR STEARNS ASSET BACKED SECURITIES TRUST
                 Asset Backed Certificates, Series 2003-AC7 Trust
                                   (Registrant)

              By:    Wells Fargo Bank, N.A. as Securities Administrator
              By:   /s/   Beth Belfield as Assistant Vice President
              By:    Beth Belfield as Assistant Vice President
              Date:  11/30/2004

                                INDEX TO EXHIBITS

Exhibit Number            Description
EX-99.1                   Monthly report distributed to holders of Asset Backed
                          Certificates, Series 2003-AC7 Trust, relating to the
                          November 26, 2004 distribution.




                   EX-99.1



Bear Stearns Asset Backed Securities
Mortgage Pass-Through Certificates



Record Date:             10/31/2004
Distribution Date:       11/26/2004


BSA  Series: 2003-AC7

Contact: Customer Service - CTSLink
         Wells Fargo Bank, N.A.
         Securities Administration Services
         7485 New Horizon Way
         Frederick, MD 21703
         Telephone: (301) 815-6600
         Fax:       (301) 815-6660








                                          Certificateholder Distribution Summary

                             Certificate    Certificate                  Beginning
                             Class          Pass-Through               Certificate           Interest          Principal
Class             CUSIP      Description    Rate                            Balance       Distribution       Distribution

<s>          <c>             <c>            <c>                <c>                <c>                <c>
      A-1        07384YPH3              SEN             5.00000%     171,766,977.00         715,695.74       6,922,401.63
      A-2        07384YPJ9              SEN             5.25000%     187,615,800.31         820,819.13       7,561,126.97
      A-3        07384YPK6              SEN             2.61250%      66,393,719.29         144,544.66       2,675,741.28
      A-4        07384YPL4              SEN             4.88750%               0.00         270,416.09               0.00
      M-1        07384YPN0              MEZ             5.20000%      30,412,606.90         131,787.96       1,225,662.13
      M-2        07384YPP5              MEZ             3.53250%      30,412,606.90          95,495.59       1,225,662.13
       B         07384YPQ3              SUB             4.43250%      20,409,437.88          80,413.19         822,523.21
       C         07383GCX2              OC              0.00000%       4,971,317.00         448,833.85               0.00
       P         07383GCW4               P              0.00000%             100.00          54,110.95               0.00
      R-1        07383GCY0              RES             0.00000%               0.00               0.00               0.00
      R-2        07383GCZ7              RES             0.00000%               0.00               0.00               0.00
      R-3        07383GDA1              RES             0.00000%               0.00               0.00               0.00
Totals                                                               511,982,565.28       2,762,117.16      20,433,117.35




                     Certificateholder Distribution Summary (continued)

                          Current             Ending                            Cumulative
                         Realized        Certificate              Total           Realized
Class                         Loss            Balance       Distribution             Losses

<s>            <c>               <c>                <c>                <c>
A-1                           0.00     164,844,575.37       7,638,097.37               0.00
A-2                           0.00     180,054,673.34       8,381,946.10               0.00
A-3                           0.00      63,717,978.01       2,820,285.94               0.00
A-4                           0.00               0.00         270,416.09               0.00
M-1                           0.00      29,186,944.77       1,357,450.09               0.00
M-2                           0.00      29,186,944.77       1,321,157.72               0.00
B                             0.00      19,586,914.66         902,936.40               0.00
C                             0.00       4,971,317.00         448,833.85               0.00
P                             0.00             100.00          54,110.95               0.00
R-1                           0.00               0.00               0.00               0.00
R-2                           0.00               0.00               0.00               0.00
R-3                           0.00               0.00               0.00               0.00
Totals                        0.00     491,549,447.92      23,195,234.51               0.00
<FN>
All distributions required by the Pooling and Servicing Agreement have been calculated by the
Certificate Administrator on behalf of the Trustee.




</FN>




                                                Principal Distribution Statement

                         Original            Beginning          Scheduled       Unscheduled
                             Face          Certificate          Principal         Principal                        Realized
Class                       Amount              Balance       Distribution      Distribution        Accretion       Loss (1)

<s>            <c>               <c>                  <c>                <c>               <c>              <c>
A-1                 240,600,000.00       171,766,977.00               0.00      6,922,401.63             0.00           0.00
A-2                 262,800,000.00       187,615,800.31               0.00      7,561,126.97             0.00           0.00
A-3                  93,000,000.00        66,393,719.29               0.00      2,675,741.28             0.00           0.00
A-4                           0.00                 0.00               0.00              0.00             0.00           0.00
M-1                  42,600,000.00        30,412,606.90               0.00      1,225,662.13             0.00           0.00
M-2                  42,600,000.00        30,412,606.90               0.00      1,225,662.13             0.00           0.00
B                    28,588,212.00        20,409,437.88               0.00        822,523.21             0.00           0.00
C                             0.24         4,971,317.00               0.00              0.00             0.00           0.00
P                           100.00               100.00               0.00              0.00             0.00           0.00
R-1                           0.00                 0.00               0.00              0.00             0.00           0.00
R-2                           0.00                 0.00               0.00              0.00             0.00           0.00
R-3                           0.00                 0.00               0.00              0.00             0.00           0.00
Totals              710,188,312.24       511,982,565.28               0.00     20,433,117.35             0.00           0.00
<FN>
(1) Amount Does Not Include Excess Special Hazard, Bankruptcy, or Fraud Losses Unless Otherwise Disclosed.
    Please Refer to the Prospectus Supplement for a Full Description.

</FN>

 
 

                         Principal Distribution Statement (continued)

                             Total               Ending           Ending               Total
                         Principal          Certificate      Certificate           Principal
 Class                    Reduction              Balance       Percentage        Distribution

 <s>            <c>               <c>                  <c>              <c>
 A-1                   6,922,401.63       164,844,575.37         0.68513955       6,922,401.63
 A-2                   7,561,126.97       180,054,673.34         0.68513955       7,561,126.97
 A-3                   2,675,741.28        63,717,978.01         0.68513955       2,675,741.28
 A-4                           0.00                 0.00         0.00000000               0.00
 M-1                   1,225,662.13        29,186,944.77         0.68513955       1,225,662.13
 M-2                   1,225,662.13        29,186,944.77         0.68513955       1,225,662.13
 B                       822,523.21        19,586,914.66         0.68513955         822,523.21
 C                             0.00         4,971,317.00   713,820.83333330               0.00
 P                             0.00               100.00         1.00000000               0.00
 R-1                           0.00                 0.00         0.00000000               0.00
 R-2                           0.00                 0.00         0.00000000               0.00
 R-3                           0.00                 0.00         0.00000000               0.00

 Totals               20,433,117.35       491,549,447.92         0.69213959      20,433,117.35
 



                                     Principal Distribution Factors Statement

                             Original          Beginning         Scheduled        Unscheduled
                                 Face        Certificate         Principal          Principal
Class (2)                       Amount            Balance      Distribution       Distribution          Accretion


 <s>           <c>                   <c>                <c>               <c>                <c>
A-1                     240,600,000.00         713.91096010       0.00000000        28.77141160         0.00000000
A-2                     262,800,000.00         713.91096008       0.00000000        28.77141161         0.00000000
A-3                      93,000,000.00         713.91096011       0.00000000        28.77141161         0.00000000
A-4                               0.00           0.00000000       0.00000000         0.00000000         0.00000000
M-1                      42,600,000.00         713.91096009       0.00000000        28.77141150         0.00000000
M-2                      42,600,000.00         713.91096009       0.00000000        28.77141150         0.00000000
B                        28,588,212.00         713.91096022       0.00000000        28.77141145         0.00000000
C                                 0.24   713820833.33330000       0.00000000         0.00000000         0.00000000
P                               100.00        1000.00000000       0.00000000         0.00000000         0.00000000
R-1                               0.00           0.00000000       0.00000000         0.00000000         0.00000000
R-2                               0.00           0.00000000       0.00000000         0.00000000         0.00000000
R-3                               0.00           0.00000000       0.00000000         0.00000000         0.00000000
<FN>
(2) All Classes are per $1,000 denomination.
</FN>







                             Principal Distribution Factors Statement (continued)

                                               Total             Ending            Ending              Total
                         Realized          Principal        Certificate       Certificate          Principal
Class                     Loss (3)          Reduction            Balance        Percentage       Distribution

<s>            <c>               <c>                <c>                <c>               <c>
A-1                     0.00000000        28.77141160               685.13954850          0.68513955        28.77141160
A-2                     0.00000000        28.77141161               685.13954848          0.68513955        28.77141161
A-3                     0.00000000        28.77141161               685.13954849          0.68513955        28.77141161
A-4                     0.00000000         0.00000000                 0.00000000          0.00000000         0.00000000
M-1                     0.00000000        28.77141150               685.13954859          0.68513955        28.77141150
M-2                     0.00000000        28.77141150               685.13954859          0.68513955        28.77141150
B                       0.00000000        28.77141145               685.13954843          0.68513955        28.77141145
C                       0.00000000         0.00000000    20,713,820,833.33330000   20713820.83333330         0.00000000
P                       0.00000000         0.00000000             1,000.00000000          1.00000000         0.00000000
R-1                     0.00000000         0.00000000                 0.00000000          0.00000000         0.00000000
R-2                     0.00000000         0.00000000                 0.00000000          0.00000000         0.00000000
R-3                     0.00000000         0.00000000                 0.00000000          0.00000000         0.00000000
<FN>
(3) Amount Does Not Include Excess Special Hazard, Bankruptcy, or Fraud Losses Unless Otherwise Disclosed.
    Please Refer to the Prospectus Supplement for a Full Description.
</FN>









                                                Interest Distribution Statement

                                                            Beginning                           Payment of
                         Original          Current       Certificate/            Current            Unpaid            Current
                             Face      Certificate           Notional            Accrued          Interest           Interest
Class                       Amount             Rate            Balance           Interest         Shortfall          Shortfall

<s>            <c>               <c>              <c>                <c>                <c>               <c>

A-1                 240,600,000.00         5.00000%     171,766,977.00         715,695.74              0.00               0.00
A-2                 262,800,000.00         5.25000%     187,615,800.31         820,819.13              0.00               0.00
A-3                  93,000,000.00         2.61250%      66,393,719.29         144,544.66              0.00               0.00
A-4                           0.00         4.88750%      66,393,719.29         270,416.09              0.00               0.00
M-1                  42,600,000.00         5.20000%      30,412,606.90         131,787.96              0.00               0.00
M-2                  42,600,000.00         3.53250%      30,412,606.90          95,495.59              0.00               0.00
B                    28,588,212.00         4.43250%      20,409,437.88          80,413.19              0.00               0.00
C                             0.24         0.00000%       4,971,317.00               0.00              0.00               0.00
P                           100.00         0.00000%             100.00               0.00              0.00               0.00
R-1                           0.00         0.00000%               0.00               0.00              0.00               0.00
R-2                           0.00         0.00000%               0.00               0.00              0.00               0.00
R-3                           0.00         0.00000%               0.00               0.00              0.00               0.00
Totals              710,188,312.24                                           2,259,172.36              0.00               0.00





                                    Interest Distribution Statement (continued)

                                                                                  Remaining                Ending
                    Non-Supported                                   Total            Unpaid          Certificate/
                         Interest           Realized             Interest          Interest              Notional
Class                    Shortfall         Losses (4)         Distribution         Shortfall               Balance


<s>            <c>               <c>                <c>                  <c>                 <c>
A-1                           0.00               0.00           715,695.74              0.00        164,844,575.37
A-2                           0.00               0.00           820,819.13              0.00        180,054,673.34
A-3                           0.00               0.00           144,544.66              0.00         63,717,978.01
A-4                           0.00               0.00           270,416.09              0.00         63,717,978.01
M-1                           0.00               0.00           131,787.96              0.00         29,186,944.77
M-2                           0.00               0.00            95,495.59              0.00         29,186,944.77
B                             0.00               0.00            80,413.19              0.00         19,586,914.66
C                             0.00               0.00           448,833.85              0.00          4,971,317.00
P                             0.00               0.00            54,110.95              0.00                100.00
R-1                           0.00               0.00                 0.00              0.00                  0.00
R-2                           0.00               0.00                 0.00              0.00                  0.00
R-3                           0.00               0.00                 0.00              0.00                  0.00
Totals                        0.00               0.00         2,762,117.16              0.00
<FN>
(4) Amount Does Not Include Excess Special Hazard, Bankruptcy, or Fraud Losses Unless Otherwise Disclosed.
    Please Refer to the Prospectus Supplement for a Full Description.


</FN>




                                             Interest Distribution Factors Statement

                                                              Beginning                           Payment of
                           Original          Current       Certificate/           Current             Unpaid            Current
                               Face      Certificate           Notional           Accrued          Interest            Interest
Class (5)                     Amount             Rate            Balance          Interest          Shortfall          Shortfall


<s>           <c>                  <c>              <c>                <c>               <c>                <c>
A-1                   240,600,000.00         5.00000%        713.91096010        2.97462901         0.00000000         0.00000000
A-2                   262,800,000.00         5.25000%        713.91096008        3.12336046         0.00000000         0.00000000
A-3                    93,000,000.00         2.61250%        713.91096011        1.55424366         0.00000000         0.00000000
A-4                             0.00         4.88750%        713.91096011        2.90769989         0.00000000         0.00000000
M-1                    42,600,000.00         5.20000%        713.91096009        3.09361408         0.00000000         0.00000000
M-2                    42,600,000.00         3.53250%        713.91096009        2.24168052         0.00000000         0.00000000
B                      28,588,212.00         4.43250%        713.91096022        2.81280935         0.00000000         0.00000000
C                               0.24         0.00000%  713820833.33330000        0.00000000         0.00000000         0.00000000
P                             100.00         0.00000%       1000.00000000        0.00000000         0.00000000         0.00000000
R-1                             0.00         0.00000%          0.00000000        0.00000000         0.00000000         0.00000000
R-2                             0.00         0.00000%          0.00000000        0.00000000         0.00000000         0.00000000
R-3                             0.00         0.00000%          0.00000000        0.00000000         0.00000000         0.00000000
<FN>

(5) All Classes are per $1,000 denomination.

</FN>




                              Interest Distribution Factors Statement (continued)

                                                                                Remaining             Ending
                    Non-Supported                                 Total            Unpaid       Certificate/
                         Interest           Realized           Interest          Interest           Notional
Class                    Shortfall         Losses (6)       Distribution         Shortfall            Balance


<s>            <c>               <c>                <c>                <c>            <c>
A-1                     0.00000000         0.00000000            2.97462901        0.00000000        685.13954850
A-2                     0.00000000         0.00000000            3.12336046        0.00000000        685.13954848
A-3                     0.00000000         0.00000000            1.55424366        0.00000000        685.13954849
A-4                     0.00000000         0.00000000            2.90769989        0.00000000        685.13954849
M-1                     0.00000000         0.00000000            3.09361408        0.00000000        685.13954859
M-2                     0.00000000         0.00000000            2.24168052        0.00000000        685.13954859
B                       0.00000000         0.00000000            2.81280935        0.00000000        685.13954843
C                       0.00000000         0.00000000    870141041.66667000        0.00000000  713820833.33330000
P                       0.00000000         0.00000000       541109.50000000        0.00000000       1000.00000000
R-1                     0.00000000         0.00000000            0.00000000        0.00000000          0.00000000
R-2                     0.00000000         0.00000000            0.00000000        0.00000000          0.00000000
R-3                     0.00000000         0.00000000            0.00000000        0.00000000          0.00000000
<FN>
(6) Amount Does Not Include Excess Special Hazard, Bankruptcy,or Fraud Losses Unless
    Otherwise Disclosed. Please Refer to the Prospectus Supplement for a Full Description.
</FN>











                                         CERTIFICATEHOLDER ACCOUNT STATEMENT
                                                 CERTIFICATE ACCOUNT

<s>                                                                                      <c>
Beginning Balance                                                                                              0.00
Deposits
     Payments of Interest and Principal                                                               23,302,488.27
     Liquidations, Insurance Proceeds, Reserve Funds                                                           0.00
     Proceeds from Repurchased Loans                                                                           0.00
     Other Amounts (Servicer Advances)                                                                    60,360.95
     Realized Loss (Gains, Subsequent Expenses & Recoveries)                                                   0.00

     Prepayment Penalties                                                                                      0.00
Total Deposits                                                                                        23,362,849.22

Withdrawals
     Reimbursement for Servicer Advances                                                                  56,466.86
     Payment of Service Fee                                                                              111,147.85
     Payment of Interest and Principal                                                                23,195,234.51
Total Withdrawals (Pool Distribution Amount)                                                          23,362,849.22


Ending Balance                                                                                                 0.00




                                      PREPAYMENT/CURTAILMENT INTEREST SHORTFALL
<s>                                                                                       <c>
Total Prepayment/Curtailment Interest Shortfall                                                                0.00

Servicing Fee Support                                                                                          0.00
Non-Supported Prepayment/Curtailment Interest Shortfall                                                        0.00






                                                   SERVICING FEES
<s>                                                                                       <c>

Gross Servicing Fee                                                                                      106,663.00
Back-up Servicing Fee                                                                                      4,484.85
Supported Prepayment/Curtailment Interest Shortfall                                                            0.00
Net Servicing Fee                                                                                        111,147.85







                                                    OTHER ACCOUNTS

                                                    Beginning            Current           Current            Ending
Account Type                                           Balance        Withdrawals          Deposits           Balance

<s>                                      <c>                 <c>                <c>               <c>
Net WAC Reserve Fund                                  5,000.00               0.00              0.00          5,000.00
Class P Certificate Account                             100.00               0.00              0.00            100.00




                                  LOAN STATUS STRATIFICATION/CREDIT ENHANCEMENT STATEMENT
                                                     DELINQUENCY STATUS

         DELINQUENT               BANKRUPTCY             FORECLOSURE             REO                     Total

<s>          <c>                    <c>                     <c>                     <c>                     <c>

          No of Loans             No of Loans            No of Loans             No of Loans             No of Loans
          Principal Balance       Principal Balance      Principal Balance       Principal Balance       Principal Balance
0-29 Days                         8                      0                       0                       8
                                  1,424,307.25           0.00                    0.00                    1,424,307.25

30 Days   14                      0                      0                       0                       14
          2,931,621.87            0.00                   0.00                    0.00                    2,931,621.87

60 Days   10                      2                      0                       0                       12
          2,384,263.44            162,849.00             0.00                    0.00                    2,547,112.44

90 Days   1                       1                      1                       0                       3
          274,265.51              85,500.71              174,605.14              0.00                    534,371.36

120 Days  1                       1                      0                       0                       2
          147,183.57              102,659.28             0.00                    0.00                    249,842.85

150 Days  1                       4                      3                       0                       8
          172,555.68              836,460.91             1,045,841.89            0.00                    2,054,858.48

180+ Days 0                       0                      2                       2                       4
          0.00                    0.00                   361,534.98              275,411.54              636,946.52

Totals    27                      16                     6                       2                       51
          5,909,890.07            2,611,777.15           1,581,982.01            275,411.54              10,379,060.77


          No of Loans             No of Loans            No of Loans             No of Loans             No of Loans
          Principal Balance       Principal Balance      Principal Balance       Principal Balance       Principal Balance
0-29 Days                         0.322841%              0.000000%               0.000000%               0.322841%
                                  0.289435%              0.000000%               0.000000%               0.289435%

30 Days   0.564972%               0.000000%              0.000000%               0.000000%               0.564972%
          0.595737%               0.000000%              0.000000%               0.000000%               0.595737%

60 Days   0.403551%               0.080710%              0.000000%               0.000000%               0.484262%
          0.484508%               0.033093%              0.000000%               0.000000%               0.517601%

90 Days   0.040355%               0.040355%              0.040355%               0.000000%               0.121065%
          0.055734%               0.017375%              0.035482%               0.000000%               0.108590%

120 Days  0.040355%               0.040355%              0.000000%               0.000000%               0.080710%
          0.029909%               0.020861%              0.000000%               0.000000%               0.050771%

150 Days  0.040355%               0.161421%              0.121065%               0.000000%               0.322841%
          0.035065%               0.169978%              0.212526%               0.000000%               0.417569%

180+ Days 0.000000%               0.000000%              0.080710%               0.080710%               0.161421%
          0.000000%               0.000000%              0.073468%               0.055967%               0.129434%

Totals    1.089588%               0.645682%              0.242131%               0.080710%               2.058111%
          1.200954%               0.530741%              0.321476%               0.055967%               2.109137%






                                               OTHER INFORMATION

<s>                                                                                 <c>
Current Period Class A Insufficient Funds                                                                  0.00
Principal Balance of Contaminated Properties                                                               0.00

Periodic Advance                                                                                      60,360.95








 
 

                                     COLLATERAL STATEMENT
                                                                                 
 Collateral Description                                                        Fixed 30 Year

 Weighted Average Gross Coupon                                                     6.571331%
 Weighted Average Net Coupon                                                       6.321331%
 Weighted Average Pass-Through Rate                                                6.321331%
 Weighted Average Maturity(Stepdown Calculation )                                        329
 Beginning Scheduled Collateral Loan Count                                             2,560

 Number Of Loans Paid In Full                                                             82
 Ending Scheduled Collateral Loan Count                                                2,478
 Beginning Scheduled Collateral Balance                                       511,982,465.27
 Ending Scheduled Collateral Balance                                          491,549,347.91
 Ending Actual Collateral Balance at 31-Oct-2004                              492,099,819.36
 Monthly P &I Constant                                                          3,413,314.79
 Special Servicing Fee                                                                  0.00
 Prepayment Penalties                                                                   0.00
 Realized Loss Amount                                                                   0.00
 Cumulative Realized Loss                                                               0.00
 Ending Scheduled Balance for Premium Loans                                   491,549,347.91
 Scheduled Principal                                                              609,642.85
 Unscheduled Principal                                                         19,823,474.51

 Required Overcollateralization Amount                                                  0.00
 Overcollateralized Increase Amount                                                     0.00
 Overcollateralized reduction Amount                                                    0.00
 Specified O/C Amount                                                           4,971,317.00
 Overcollateralized Amount                                                      4,971,317.00
 Overcollateralized Deficiency Amount                                                   0.00
 Base Overcollateralized Amount                                                         0.00
 Extra principal distribution Amount                                                    0.00
 Excess Cash Amount                                                               507,429.66
 
 
 
                                                       


 
   
   

                             Miscellaneous Reporting
                                                           
   3 Month Rolling Dlq Average Percentage                           0.009754%