<PAGE>

                                                        Page 1 of 14 Pages


                          SECURITIES AND EXCHANGE COMMISSION
                               WASHINGTON, D.C.  20549
       ----------------------------------------------------------------------
                                     SCHEDULE 13G

              Information Statement pursuant to Rule 13d-1 and 13d-2

                                (AMENDMENT NO.  2  )*

                                UAL Corporation
                     ---------------------------------------------
                                   (NAME OF ISSUER)

                                     COMMON STOCK
                     ---------------------------------------------
                            (TITLE OF CLASS OF SECURITIES)

                                       902549500
                     ---------------------------------------------
                                     (CUSIP NUMBER)
       ----------------------------------------------------------------------
       Check the following box if a fee is being paid with this statement :_:
       (A fee is not required only if the filing person: (1) has a previous
       statement on file reporting beneficial ownership of more than five
       percent of the class of securities described in Item 1; and (2) has
       filed no amendment subsequent thereto reporting beneficial ownership
       of five percent or less of such class.) (See Rule 13d-7.)

       * 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).

                          (CONTINUED ON FOLLOWING PAGE(S))





<PAGE>

       |--------------------|                          |--------------------|
       |CUSIP NO. 902549500 |         13G              | Page 2 of 14 Pages |
       |--------------------|                          |--------------------|
       |--------------------------------------------------------------------|
       | 1|NAME OF REPORTING PERSON                                         |
       |  |AXA Assurances I.A.R.D. Mutuelle                                 |
       |  |                                                                 |
       |  |S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON                |
       |  |                                                                 |
       |--|-----------------------------------------------------------------|
       | 2|CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP *   (A) [ ]     |
       |  |                                                     (B) [X]     |
       |--|-----------------------------------------------------------------|
       | 3|SEC USE ONLY                                                     |
       |  |                                                                 |
       |  |                                                                 |
       |--|-----------------------------------------------------------------|
       | 4|CITIZENSHIP OR PLACE OF ORGANIZATION                             |
       |  |                                                                 |
       |  |France                                                           |
       |--------------------------------------------------------------------|
       |     NUMBER OF     |5|SOLE VOTING POWER                             |
       |      SHARES       | |       1,908,532                              |
       |   BENEFICIALLY    |-|----------------------------------------------|
       |      OWNED        |6|SHARED VOTING POWER                           |
       |      AS OF        | |          77,650                              |
       |September 30, 1994 |-|----------------------------------------------|
       |     BY EACH       |7|SOLE DISPOSITIVE POWER                        |
       |    REPORTING      | |       3,103,842                              |
       |     PERSON        |-|----------------------------------------------|
       |      WITH         |8|SHARED DISPOSITIVE POWER                      |
       |                   | |               0                              |
       |--------------------------------------------------------------------|
       | 9|AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     |
       |  |                          3,103,842                              |
       |  |(Not to be construed as an admission of beneficial ownership)    |
       |--|-----------------------------------------------------------------|
       |10|CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN    |
       |  |SHARES *                                            |------|     |
       |  |                                                    |------|     |
       |--|-----------------------------------------------------------------|
       |11|PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9                  |
       |  |                                                                 |
       |  |                              24.6%                              |
       |--|-----------------------------------------------------------------|
       |12|TYPE OF REPORTING PERSON *                                       |
       |  |                                                                 |
       |  |                             IC                                  |
       |--------------------------------------------------------------------|

                       * SEE INSTRUCTIONS BEFORE FILLING OUT!


<PAGE>

       |--------------------|                          |--------------------|
       |CUSIP NO. 902549500 |         13G              | Page 3 of 14 Pages |
       |--------------------|                          |--------------------|
       |--------------------------------------------------------------------|
       | 1|NAME OF REPORTING PERSON                                         |
       |  |AXA Assurances Vie Mutuelle                                      |
       |  |                                                                 |
       |  |S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON                |
       |  |                                                                 |
       |--|-----------------------------------------------------------------|
       | 2|CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP *   (A) [ ]     |
       |  |                                                     (B) [X]     |
       |--|-----------------------------------------------------------------|
       | 3|SEC USE ONLY                                                     |
       |  |                                                                 |
       |  |                                                                 |
       |--|-----------------------------------------------------------------|
       | 4|CITIZENSHIP OR PLACE OF ORGANIZATION                             |
       |  |                                                                 |
       |  |France                                                           |
       |--------------------------------------------------------------------|
       |     NUMBER OF     |5|SOLE VOTING POWER                             |
       |      SHARES       | |       1,908,532                              |
       |   BENEFICIALLY    |-|----------------------------------------------|
       |      OWNED        |6|SHARED VOTING POWER                           |
       |      AS OF        | |          77,650                              |
       |September 30, 1994 |-|----------------------------------------------|
       |     BY EACH       |7|SOLE DISPOSITIVE POWER                        |
       |    REPORTING      | |       3,103,842                              |
       |     PERSON        |-|----------------------------------------------|
       |      WITH         |8|SHARED DISPOSITIVE POWER                      |
       |                   | |               0                              |
       |--------------------------------------------------------------------|
       | 9|AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     |
       |  |                          3,103,842                              |
       |  |(Not to be construed as an admission of beneficial ownership)    |
       |--|-----------------------------------------------------------------|
       |10|CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN    |
       |  |SHARES *                                            |------|     |
       |  |                                                    |------|     |
       |--|-----------------------------------------------------------------|
       |11|PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9                  |
       |  |                                                                 |
       |  |                              24.6%                              |
       |--|-----------------------------------------------------------------|
       |12|TYPE OF REPORTING PERSON *                                       |
       |  |                                                                 |
       |  |                             IC                                  |
       |--------------------------------------------------------------------|

                       * SEE INSTRUCTIONS BEFORE FILLING OUT!


<PAGE>

       |--------------------|                          |--------------------|
       |CUSIP NO. 902549500 |         13G              | Page 4 of 14 Pages |
       |--------------------|                          |--------------------|
       |--------------------------------------------------------------------|
       | 1|NAME OF REPORTING PERSON                                         |
       |  |Alpha Assurances I.A.R.D. Mutuelle                               |
       |  |                                                                 |
       |  |S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON                |
       |  |                                                                 |
       |--|-----------------------------------------------------------------|
       | 2|CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP *   (A) [ ]     |
       |  |                                                     (B) [X]     |
       |--|-----------------------------------------------------------------|
       | 3|SEC USE ONLY                                                     |
       |  |                                                                 |
       |  |                                                                 |
       |--|-----------------------------------------------------------------|
       | 4|CITIZENSHIP OR PLACE OF ORGANIZATION                             |
       |  |                                                                 |
       |  |France                                                           |
       |--------------------------------------------------------------------|
       |     NUMBER OF     |5|SOLE VOTING POWER                             |
       |      SHARES       | |       1,908,532                              |
       |   BENEFICIALLY    |-|----------------------------------------------|
       |      OWNED        |6|SHARED VOTING POWER                           |
       |      AS OF        | |          77,650                              |
       |September 30, 1994 |-|----------------------------------------------|
       |     BY EACH       |7|SOLE DISPOSITIVE POWER                        |
       |    REPORTING      | |       3,103,842                              |
       |     PERSON        |-|----------------------------------------------|
       |      WITH         |8|SHARED DISPOSITIVE POWER                      |
       |                   | |               0                              |
       |--------------------------------------------------------------------|
       | 9|AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     |
       |  |                          3,103,842                              |
       |  |(Not to be construed as an admission of beneficial ownership)    |
       |--|-----------------------------------------------------------------|
       |10|CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN    |
       |  |SHARES *                                            |------|     |
       |  |                                                    |------|     |
       |--|-----------------------------------------------------------------|
       |11|PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9                  |
       |  |                                                                 |
       |  |                              24.6%                              |
       |--|-----------------------------------------------------------------|
       |12|TYPE OF REPORTING PERSON *                                       |
       |  |                                                                 |
       |  |                             IC                                  |
       |--------------------------------------------------------------------|

                       * SEE INSTRUCTIONS BEFORE FILLING OUT!


<PAGE>

       |--------------------|                          |--------------------|
       |CUSIP NO. 902549500 |         13G              | Page 5 of 14 Pages |
       |--------------------|                          |--------------------|
       |--------------------------------------------------------------------|
       | 1|NAME OF REPORTING PERSON                                         |
       |  |Alpha Assurances Vie Mutuelle                                    |
       |  |                                                                 |
       |  |S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON                |
       |  |                                                                 |
       |--|-----------------------------------------------------------------|
       | 2|CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP *   (A) [ ]     |
       |  |                                                     (B) [X]     |
       |--|-----------------------------------------------------------------|
       | 3|SEC USE ONLY                                                     |
       |  |                                                                 |
       |  |                                                                 |
       |--|-----------------------------------------------------------------|
       | 4|CITIZENSHIP OR PLACE OF ORGANIZATION                             |
       |  |                                                                 |
       |  |France                                                           |
       |--------------------------------------------------------------------|
       |     NUMBER OF     |5|SOLE VOTING POWER                             |
       |      SHARES       | |       1,908,532                              |
       |   BENEFICIALLY    |-|----------------------------------------------|
       |      OWNED        |6|SHARED VOTING POWER                           |
       |      AS OF        | |          77,650                              |
       |September 30, 1994 |-|----------------------------------------------|
       |     BY EACH       |7|SOLE DISPOSITIVE POWER                        |
       |    REPORTING      | |       3,103,842                              |
       |     PERSON        |-|----------------------------------------------|
       |      WITH         |8|SHARED DISPOSITIVE POWER                      |
       |                   | |               0                              |
       |--------------------------------------------------------------------|
       | 9|AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     |
       |  |                          3,103,842                              |
       |  |(Not to be construed as an admission of beneficial ownership)    |
       |--|-----------------------------------------------------------------|
       |10|CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN    |
       |  |SHARES *                                            |------|     |
       |  |                                                    |------|     |
       |--|-----------------------------------------------------------------|
       |11|PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9                  |
       |  |                                                                 |
       |  |                              24.6%                              |
       |--|-----------------------------------------------------------------|
       |12|TYPE OF REPORTING PERSON *                                       |
       |  |                                                                 |
       |  |                             IC                                  |
       |--------------------------------------------------------------------|

                       * SEE INSTRUCTIONS BEFORE FILLING OUT!


<PAGE>

       |--------------------|                          |--------------------|
       |CUSIP NO. 902549500 |        13G               | Page 6 of 14 Pages |
       |--------------------|                          |--------------------|
       |--------------------------------------------------------------------|
       | 1|NAME OF REPORTING PERSON                                         |
       |  |Uni Europe Assurance Mutuelle                                    |
       |  |                                                                 |
       |  |S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON                |
       |  |                                                                 |
       |--|-----------------------------------------------------------------|
       | 2|CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP *   (A) [ ]     |
       |  |                                                     (B) [X]     |
       |--|-----------------------------------------------------------------|
       | 3|SEC USE ONLY                                                     |
       |  |                                                                 |
       |  |                                                                 |
       |--|-----------------------------------------------------------------|
       | 4|CITIZENSHIP OR PLACE OF ORGANIZATION                             |
       |  |                                                                 |
       |  |France                                                           |
       |--------------------------------------------------------------------|
       |     NUMBER OF     |5|SOLE VOTING POWER                             |
       |      SHARES       | |       1,908,532                              |
       |   BENEFICIALLY    |-|----------------------------------------------|
       |      OWNED        |6|SHARED VOTING POWER                           |
       |      AS OF        | |          77,650                              |
       |September 30, 1994 |-|----------------------------------------------|
       |     BY EACH       |7|SOLE DISPOSITIVE POWER                        |
       |    REPORTING      | |       3,103,842                              |
       |     PERSON        |-|----------------------------------------------|
       |      WITH         |8|SHARED DISPOSITIVE POWER                      |
       |                   | |               0                              |
       |--------------------------------------------------------------------|
       | 9|AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     |
       |  |                          3,103,842                              |
       |  |(Not to be construed as an admission of beneficial ownership)    |
       |--|-----------------------------------------------------------------|
       |10|CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN    |
       |  |SHARES *                                            |------|     |
       |  |                                                    |------|     |
       |--|-----------------------------------------------------------------|
       |11|PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9                  |
       |  |                                                                 |
       |  |                              24.6%                              |
       |--|-----------------------------------------------------------------|
       |12|TYPE OF REPORTING PERSON *                                       |
       |  |                                                                 |
       |  |                             IC                                  |
       |--------------------------------------------------------------------|

                       * SEE INSTRUCTIONS BEFORE FILLING OUT!


<PAGE>

       |--------------------|                          |--------------------|
       |CUSIP NO. 902549500 |         13G              | Page 7 of 14 Pages |
       |--------------------|                          |--------------------|
       |--------------------------------------------------------------------|
       | 1|NAME OF REPORTING PERSON                                         |
       |  |AXA                                                              |
       |  |                                                                 |
       |  |S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON                |
       |  |                                                                 |
       |--|-----------------------------------------------------------------|
       | 2|CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP *   (A) [ ]     |
       |  |                                                     (B) [ ]     |
       |--|-----------------------------------------------------------------|
       | 3|SEC USE ONLY                                                     |
       |  |                                                                 |
       |  |                                                                 |
       |--|-----------------------------------------------------------------|
       | 4|CITIZENSHIP OR PLACE OF ORGANIZATION                             |
       |  |                                                                 |
       |  |France                                                           |
       |--------------------------------------------------------------------|
       |     NUMBER OF     |5|SOLE VOTING POWER                             |
       |      SHARES       | |       1,908,532                              |
       |   BENEFICIALLY    |-|----------------------------------------------|
       |      OWNED        |6|SHARED VOTING POWER                           |
       |      AS OF        | |          77,650                              |
       |September 30, 1994 |-|----------------------------------------------|
       |     BY EACH       |7|SOLE DISPOSITIVE POWER                        |
       |    REPORTING      | |       3,103,842                              |
       |     PERSON        |-|----------------------------------------------|
       |      WITH         |8|SHARED DISPOSITIVE POWER                      |
       |                   | |               0                              |
       |--------------------------------------------------------------------|
       | 9|AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     |
       |  |                          3,103,842                              |
       |  |(Not to be construed as an admission of beneficial ownership)    |
       |--|-----------------------------------------------------------------|
       |10|CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN    |
       |  |SHARES *                                            |------|     |
       |  |                                                    |------|     |
       |--|-----------------------------------------------------------------|
       |11|PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9                  |
       |  |                                                                 |
       |  |                              24.6%                              |
       |--|-----------------------------------------------------------------|
       |12|TYPE OF REPORTING PERSON *                                       |
       |  |                                                                 |
       |  |                             HC                                  |
       |--------------------------------------------------------------------|

                       * SEE INSTRUCTIONS BEFORE FILLING OUT!


<PAGE>

       |--------------------|                          |--------------------|
       |CUSIP NO. 902549500 |         13G              | Page 8 of 14 Pages |
       |--------------------|                          |--------------------|
       |--------------------------------------------------------------------|
       | 1|NAME OF REPORTING PERSON                                         |
       |  |THE EQUITABLE COMPANIES INCORPORATED                             |
       |  |                                                                 |
       |  |S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON                |
       |  |13-3623351                                                       |
       |--|-----------------------------------------------------------------|
       | 2|CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP *   (A) [ ]     |
       |  |                                                     (B) [ ]     |
       |--|-----------------------------------------------------------------|
       | 3|SEC USE ONLY                                                     |
       |  |                                                                 |
       |  |                                                                 |
       |--|-----------------------------------------------------------------|
       | 4|CITIZENSHIP OR PLACE OF ORGANIZATION                             |
       |  |                                                                 |
       |  |State of Delaware                                                |
       |--------------------------------------------------------------------|
       |     NUMBER OF     |5|SOLE VOTING POWER                             |
       |      SHARES       | |       1,908,532                              |
       |   BENEFICIALLY    |-|----------------------------------------------|
       |      OWNED        |6|SHARED VOTING POWER                           |
       |      AS OF        | |          77,650                              |
       |September 30, 1994 |-|----------------------------------------------|
       |     BY EACH       |7|SOLE DISPOSITIVE POWER                        |
       |    REPORTING      | |       3,103,842                              |
       |     PERSON        |-|----------------------------------------------|
       |      WITH         |8|SHARED DISPOSITIVE POWER                      |
       |                   | |               0                              |
       |--------------------------------------------------------------------|
       | 9|AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON     |
       |  |                          3,103,842                              |
       |  |                                                                 |
       |--|-----------------------------------------------------------------|
       |10|CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN    |
       |  |SHARES *                                            |------|     |
       |  |                                                    |------|     |
       |--|-----------------------------------------------------------------|
       |11|PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9                  |
       |  |                                                                 |
       |  |                               24.6%                             |
       |--|-----------------------------------------------------------------|
       |12|TYPE OF REPORTING PERSON *                                       |
       |  |                                                                 |
       |  |                            HC                                   |
       |--------------------------------------------------------------------|

                       * SEE INSTRUCTIONS BEFORE FILLING OUT!


<PAGE>

       Item 1(a) Name of Issuer:                         Page 9 of 14 Pages
                 --------------
                 UAL Corporation

       Item 1(b) Address of Issuer's Principal Executive Offices:
                 -----------------------------------------------
                 1200 E. Algonquin Road
                 Elk Grove Village, IL
                 60007

       Item 2(a) Name of Person Filing:
                 ---------------------
                 Alpha Assurances I.A.R.D. Mutuelle, Alpha Assurances
                 Vie Mutuelle, AXA Assurances I.A.R.D Mutuelle, AXA Assurances
                 Vie Mutuelle, and Uni Europe Assurance Mutuelle, as a group
                 (collectively, the 'Mutuelles AXA')

                 AXA

                 The Equitable Companies Incorporated
                   (the 'Equitable Companies')

       Item 2(b) Address of Principal Business Office:
                 ------------------------------------
                 Alpha Assurances I.A.R.D. Mutuelle and
                 Alpha Assurances Vie Mutuelle
                 101-100 Terrasse Boieldieu
                 92042 Paris La Defense France

                 AXA Assurances I.A.R.D Mutuelle and
                 AXA Assurances Vie Mutuelle
                 La Grande Arche
                 Pardi Nord
                 92044 Paris La Defense France

                 Uni Europe Assurance Mutuelle
                 24 Rue Drouot
                 75009 Paris France

                 AXA
                 23, Avenue Matignon
                 75008 Paris France

                 The Equitable Companies Incorporated
                 787 Seventh Avenue
                 New York, New York 10019



<PAGE>
                                                         Page 10 of 14 Pages


       Item 2(c) Citizenship:
                 -----------
                 Mutuelles AXA and AXA - France
                 Equitable Companies - Delaware

       Item 2(d) Title of Class of Securities:
                 ----------------------------
                 Common Stock

       Item 2(e) CUSIP Number:
                 ------------
                 902549500

       Item 3.   Type of Reporting Person:
                 ------------------------
                 Equitable Companies as a parent holding company,
                 in accordance with 240.13d-1 (b)(ii)(G).

                 The Mutuelles AXA, as a group, acting as a parent
                 holding company.

                 AXA as a parent holding company.

<PAGE>

<TABLE>
                                                       Page 11 of 14 Pages
       Item 4. Ownership as of September 30, 1994:
               ----------------------------------
       (a) Amount Beneficially Owned:
           -------------------------
        3,103,842 shares of common stock beneficially owned including:
<CAPTION>
                                                           No. of Shares
                                                       ---------------------
       <S>                                          <C>          <C>
       The Mutuelles AXA, as a group                                       0
       AXA                                                                 0
       AXA Entity or Entities:   NONE
       ----------------------
       acquired solely for investment purposes:                            0

       (Each of the Mutuelles AXA, as a group, and AXA expressly declares that
       the filing of this Schedule 13G shall not to be construed as an admission
       that it is, for purposes of Section 13(d) of the Exchange Act, the
       beneficial owner of any securities covered by this Schedule 13G).

       <S>                                          <C>          <C>
       The Equitable Companies Incorporated                                0
       Subsidiaries:
       ------------
       The Equitable Life Assurance Society of
       the United States acquired solely for
       investment purposes:
       Common Stock                                                   20,000

       Alliance Capital Management, L. P.,
       acquired solely for investment purposes
       on behalf of client discretionary investment
       advisory accounts:
       Common Stock                                   3,043,799
       Shares to be acquired(disposed) of upon
          exercise of options                            (9,500)   3,034,299
                                                     ----------

       Donaldson, Lufkin & Jenrette Securities
       Corporation held for investment purposes:
       Common Stock                                          20
       Shares issuable upon conversion of
          convertible preferred stock                    49,523       49,543
                                                     ----------
       Wood, Struthers & Winthrop Management Corp.
       acquired solely for investment purposes
       on behalf of client discretionary investment
       advisory accounts:                                                  0
                                                                 -----------
       Total                                                       3,103,842
                                                                 ===========
       (Each of the above subsidiaries of The Equitable operates under
       independent management and makes independent decisions).
       <S>                                                           <C>

       (B) Percent of Class:                                           24.6%
           ----------------                                      ===========
</TABLE>


<PAGE>

<TABLE>
       ITEM 4. Ownership as of September 30, 1994 (CONT.)   Page 12 of 14 Pages

          (c) Deemed Voting Power and Disposition Power:
              -----------------------------------------
<CAPTION>
                            (i)         (ii)          (iii)        (iv)
                           Deemed      Deemed        Deemed       Deemed
                           to have     to have       to have      to have
                           Sole Power  Shared Power  Sole Power   Shared Power
                           to Vote     to Vote       to Dispose   to Dispose
                           or to       or to         or to        or to
                           Direct      Direct        Direct the   Direct the
                           the Vote    the Vote      Disposition  Disposition
                           ----------  ------------  -----------  ------------

       <S>                 <C>         <C>           <C>          <C>
       The Mutuelles AXA,
           as a group               0             0            0             0

       AXA                          0             0            0             0

       AXA Entity or Entities:
       ----------------------

        NONE                        0             0            0             0

       The Equitable
       Companies
       Incorporated                 0             0            0             0

       Subsidiaries:
       ------------
       The Equitable
       Life Assurance
       Society of the
       United States           20,000             0       20,000             0

       Alliance Capital
       Management, L. P.    1,838,989        77,650    3,034,299             0

       Donaldson, Lufkin
       & Jenrette
       Securities
       Corporation             49,542             0       49,542             0

       Wood, Struthers
       & Winthrop
       Management
       Corporation                  0             0            0             0
                           ----------  ------------  -----------  ------------
                  TOTAL     1,908,532        77,650    3,103,842             0
                           ==========  ============  ===========  ============

 (Each of the above subsidiaries of the Equitable Companies operates under
 independent management and makes independent voting and investment decisions).


<PAGE>

</TABLE>

                                                         Page 13 of 14 Pages
       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 five percent of the class of securities, check the following.
                                                               ( )
       Item 6.
        Ownership of More than Five Percent on behalf of Another Person.  N/A
        ----------------------------------------------------------------
       Item 7.
        Identification and Classification of the Subsidiary which Acquired
        ------------------------------------------------------------------
        the Security Being Reporting on by the Parent Holding Company:
        -------------------------------------------------------------
        This Schedule 13G is being filed by the Mutuelles AXA, as a group,
        AXA, and Equitable Companies:

       ( )  in the Mutuelles AXAs' capacity, as a group, acting as a parent
            holding company with respect to the holdings of the following
            AXA entity or entities;

       ( )  in AXA's capacity as a parent holding company with respect to
            the holdings of the following AXA entity or entities:
            NONE

       (X)  IN EQUITABLE COMPANIES capacity as a parent holding company
            with respect to the holdings of its following subsidiaries:

       (X)  THE EQUITABLE LIFE ASSURANCE SOCIETY OF THE UNITED STATES
            (13-5570651), an insurance company, a broker-dealer registered
            under Section 15 of the Securities and Exchange Act of 1934
            and an investment adviser registered under Section 203 of the
            Investment Advisers Act of 1940.

       (X)  ALLIANCE CAPITAL MANAGEMENT, L. P. (13-3434400),
            an investment adviser registered under Section 203 of the
            Investment Advisers Act of 1940.

       (X)  DONALDSON, LUFKIN & JENRETTE SECURITIES CORPORATION (13-2741729),
            a broker-dealer registered under Section 15 of the Securities
            Exchange Act of 1934 and an investment adviser registered under
            Section 203 of the Investment Advisers Act of 1940.

       ( )  WOOD, STRUTHERS & WINTHROP MANAGEMENT CORP. (13-2774791),
            an investment adviser registered under Section 203 of the
            Investment Advisers Act of 1940.

<PAGE>

                                                         Page 14 of 14 Pages

       Item 8. Identification and Classification of Members of the Group.  N/A
               ---------------------------------------------------------

       Item 9.  Notice of Dissolution of Group:  N/A
                ------------------------------

       Item 10. Certification:
                -------------
            By signing below I certify that to the best of my knowledge and
       belief, the securities referred to above were acquired in the ordinary
       course of business and were not acquired for the purpose of and do not
       have the effect of changing or influencing the control of the issuer
       of such securities and were not acquired in connection with or as a
       participant in any transaction having such purposes 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.





       Date: October 7, 1994            THE EQUITABLE COMPANIES INCORPORATED*




                                            /s/ Joanne T. Marren
                                --------------------------------------------
                                              Joanne T. Marren
                                               Vice President




       *Pursuant to the Joint Filing Agreement with respect to Schedule 13G
       attached hereto as Exhibit I, among The Equitable Companies
       Incorporated, Alpha Assurances I.A.R.D. Mutuelle, Alpha Assurances
       Vie Mutuelle, AXA Assurances I.A.R.D Mutuelle, AXA Assurances Vie
       Mutuelle, and Uni Europe Assurance Mutuelle, and AXA, this statement
       Schedule 13G is filed on behalf of each of them.


<PAGE>




                                                                    EXHIBIT I



                                      JOINT FILING AGREEMENT
                                      ----------------------




                          Each of the undersigned hereby agrees that the
                  Schedule 13G filed herewith is filed jointly, pursuant to
                  Rule 13d-1(f)(1) of the Securities Exchange Act of 1934,
                  as amended on behalf of each of them.


                  Dated: October 7, 1994



                  The Equitable Companies Incorporated



                  BY/s/ Joanne T. Marren
                     -------------------------
                     Joanne T. Marren
                     Vice President




                  AXA Assurances I.A.R.D. Mutuelle; AXA Assurances Vie
                  Mutuelle; Alpha Assurances Vie Mutuelle; Alpha Assurances
                  I.A.R.D. Mutuelle, Uni Assurance Europe Mutuelle, as a
                  group, and AXA


                  Signed on behalf of each of the above entities



                  BY:   /s/ Joanne T. Marren
                     -----------------------------------------
                     Joanne T. Marren
                     Attorney-in-Fact
                     (Executed pursuant to Powers of Attorney)