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                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                  SCHEDULE 13D

                    UNDER THE SECURITIES EXCHANGE ACT OF 1934
                                (AMENDMENT NO.2)

                        PLAINS ALL AMERICAN PIPELINE, LP
    ------------------------------------------------------------------------
                                (Name of Issuer)

                                  COMMON UNITS
    ------------------------------------------------------------------------
                         (Title of Class of Securities)

                                    726503105
    ------------------------------------------------------------------------
                                 (CUSIP Number)

         DAVID J. SHLADOVSKY, C/O KAYNE ANDERSON CAPITAL ADVISORS, L.P.
          1800 AVENUE OF THE STARS, SECOND FLOOR, LOS ANGELES, CA 90067
                                 (310) 556-2721
    ------------------------------------------------------------------------
                  (Name, Address and Telephone Number of Person
                Authorized to Receive Notices and Communications)

                                    02-25-05
    ------------------------------------------------------------------------
             (Date of Event which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report
the acquisition that is the subject of this Schedule 13D, and is filing this
schedule because of Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the following box
[ ].

Note: Schedules filed in paper format shall include a signed original and five
copies of the schedule, including all exhibits. See Rule 13d-7(b) for other
parties to whom copies are to be sent.

*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
disclosures provided in a prior cover page.

The information required on 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. 726503105               SCHEDULE 13D                 PAGE 2 OF 7 PAGES


--------------------------------------------------------------------------------
 1      NAME OF REPORTING PERSON
        S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

        RICHARD A. KAYNE                                  - 124-34-0063
--------------------------------------------------------------------------------
 2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP                 (a) [ ]
                                                                         (b) [ ]
--------------------------------------------------------------------------------
 3      SEC USE ONLY
--------------------------------------------------------------------------------
 4      SOURCE OF FUNDS

        AF PF
--------------------------------------------------------------------------------
 5      CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
        TO ITEMS 2(d) or 2(E)                                                [ ]
--------------------------------------------------------------------------------
 6      CITIZENSHIP OR PLACE OF ORGANIZATION

        A U.S. CITIZEN
--------------------------------------------------------------------------------
                              7     SOLE VOTING POWER

NUMBER OF                           235,730
SHARES                       ---------------------------------------------------
BENEFICIALLY                  8     SHARED VOTING POWER
OWNED BY
EACH REPORTING                      5,326,491
PERSON WITH                  ---------------------------------------------------
                              9     SOLE DISPOSITIVE POWER

                                    235,730
                             ---------------------------------------------------
                             10     SHARED DISPOSITIVE POWER

                                    5,326,491
--------------------------------------------------------------------------------
11      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

        5,562,221
--------------------------------------------------------------------------------
12      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
        SHARES                                                               [ ]

--------------------------------------------------------------------------------
13      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 11

        8.20%
--------------------------------------------------------------------------------
14      TYPE OF REPORTING PERSON

        IN
--------------------------------------------------------------------------------



CUSIP NO. 726503105               SCHEDULE 13D                 PAGE 3 OF 7 PAGES


--------------------------------------------------------------------------------
 1      NAME OF REPORTING PERSON
        S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

        KAYNE ANDERSON CAPITAL ADVISORS, L.P.             - 95-4486379
--------------------------------------------------------------------------------
 2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP                 (a) [ ]
                                                                         (b) [ ]
--------------------------------------------------------------------------------
 3      SEC USE ONLY
--------------------------------------------------------------------------------
4       SOURCE OF FUNDS

        AF PF
--------------------------------------------------------------------------------
 5      CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
        TO ITEMS 2(d) or 2(E)                                                [ ]
--------------------------------------------------------------------------------
 6      CITIZENSHIP OR PLACE OF ORGANIZATION

        A CALIFORNIA LIMITED PARTNERSHIP
--------------------------------------------------------------------------------
                              7     SOLE VOTING POWER

NUMBER OF                           0
SHARES                       ---------------------------------------------------
BENEFICIALLY                  8     SHARED VOTING POWER
OWNED BY
EACH REPORTING                       5,326,491
PERSON WITH                  ---------------------------------------------------
                              9     SOLE DISPOSITIVE POWER

                                    0
                             ---------------------------------------------------
                             10     SHARED DISPOSITIVE POWER

                                    5,326,491
--------------------------------------------------------------------------------
11      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

        5,326,491
--------------------------------------------------------------------------------
12      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
        SHARES                                                               [ ]

--------------------------------------------------------------------------------
13      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 11

        7.85%
--------------------------------------------------------------------------------
14      TYPE OF REPORTING PERSON

        IA
--------------------------------------------------------------------------------



                                  United States
                       Securities and Exchange Commission

                                  SCHEDULE 13D
                                 AMENDMENT NO 2.
*********************

ITEM 1.  SECURITY AND ISSUER

Common Units, $0.10 par value.

        Plains All American Pipeline, LP
        333 Clay Street, Suite 1600
        Houston, TX  77002

ITEM 2.  IDENTITY AND BACKGROUND

The Reporting Persons include Kayne Anderson Capital Advisors, L.P. and Richard
A. Kayne.

a.      KAYNE ANDERSON CAPITAL ADVISORS, L.P.

        Kayne Anderson Capital Advisors, L.P. ("KACALP"), a California limited
        partnership, is an investment adviser registered with the Securities and
        Exchange Commission under the Investment Advisers Act of 1940. It serves
        as sole general partner of and investment adviser to various investment
        partnerships holding the issuer's Common Units. KACALP also serves as
        investment adviser to Kayne Anderson MLP Investment Company ("KAMIC"), a
        publicly traded closed-end fund, and a small number of separate account
        clients which hold the issuer's Common Stock.

        Kayne Anderson Investment Management, Inc. ("KAIM"), a Nevada
        corporation, is the sole general partner of KACALP. KAIM is owned by KA
        Holdings, Inc. ("KA Holdings"), a California corporation, the
        shareholders of which are Richard A. Kayne and John E. Anderson. The
        principal business address of the Reporting Persons, KAIM and KA
        Holdings is 1800 Avenue of the Stars, Second Floor, Los Angeles,
        California 90067.

b.      RICHARD A. KAYNE

        Mr. Kayne, a U.S. citizen, is President, Chief Executive Officer and
        Director of KAIM and KA Holdings.

        Mr. Kayne also serves as Co-Management Chair and Chief Executive Officer
        of Kayne Anderson Rudnick Investment Management, LLC, a California
        limited liability company ("KARIM"), and President and Director of KA
        Associates, Inc., a Nevada corporation ("KAA"). KARIM is a registered
        investment adviser. KAA is a registered broker/dealer. The principal
        business address of KARIM and KAA is 1800 Avenue of the Stars, Second
        Floor, Los Angeles, CA 90067.

c.      None of the Reporting Persons, KAIM or KA Holdings has been convicted in
        a criminal proceeding (excluding traffic violations or similar
        misdemeanors) in the past five years, nor has any of them been a party
        to a civil proceeding of a judicial or administrative body of competent
        jurisdiction, which resulted in a judgment, decree or final order
        enjoining future violations of, or prohibiting or mandating activities
        subject to, federal or state securities laws or finding any violation
        with respect to such law during the last five years.



                                       4


d.      The following additional persons are officers and/or directors of one or
        more of KAIM and KA Holdings. (KACALP, a limited partnership, does not
        have any officers or directors.) Each such person is a U.S. citizen
        whose address is, unless noted otherwise, 1800 Avenue of the Stars,
        Second Floor, Los Angeles, California 90067. None of such persons has
        been convicted in a criminal proceeding (excluding traffic violations or
        similar misdemeanors) in the past five years, nor has any of them been a
        party to a civil proceeding of a judicial or administrative body of
        competent jurisdiction, which resulted in a judgment, decree or final
        order enjoining future violations of, or prohibiting or mandating
        activities subject to, federal or state securities laws or finding any
        violation with respect to such law during the last five years.

        JOHN E. ANDERSON.     Chairman of Topa Equities, Ltd., a diversified
                              investment company located at 1800 Avenue of the
                              Stars, Suite 1400, Los Angeles, California 90067.
                              Mr. Anderson is Director of KAIM and KA Holdings.

        HOWARD M. ZELIKOW.    Vice President and Director of KAIM

        ROBERT V. SINNOTT.    Vice President of KAIM

        RALPH C. WALTER.      Chief Operating Officer of KAIM and KA Holdings.

        DAVID J. SHLADOVSKY.  General Counsel and Secretary of KAIM and KA
                              Holdings.

        JOHN F. DALEY.        Chief Financial Officer and Treasurer of KAIM and
                              KA Holdings.

ITEM 3.  SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION

ITEM 4.  PURPOSE OF TRANSACTION

This Schedule 13D is filed for purposes of disclosing that the Reporting Persons
have acquired additional shares of Issuer's outstanding Common Units.

ITEM 5.  INTEREST IN SECURITIES OF THE ISSUER

a. As of February 25, 2005, Mr. Kayne beneficially owns 5,562,221 Common Units,
or approximately 8.20% of the outstanding Common Units. Of those Common Units,
KACALP, as general partner of or investment adviser to investment funds
accounts, beneficially owns 5,326,491 Common Units, or approximately 7.85% of
the outstanding Common Units.

b. (i) Mr. Kayne has the sole power to vote and dispose, or direct the
disposition, of 235,730 Common Units, and (ii) Mr. Kayne and KACALP have the
shared power to vote and dispose, or direct the disposition, of 5,326,491 Common
Units.

The Common Units over which Mr. Kayne has sole voting and dispositive power are
held by him directly or by accounts for which he serves as trustee or custodian.
The Common Units over which Mr. Kayne and KACALP have shared voting and
dispositive power are held by accounts for which KACALP serves as general
partner or investment adviser.

KACALP disclaims beneficial ownership of the Common Units reported, except those
Common Units attributable to it by virtue of its general partner interests in
the limited partnerships holding such shares. Mr. Kayne disclaims beneficial
ownership of the Common Units reported, except those Common Units held by him or
attributable to him by virtue of his limited partner interests in such limited
partnerships, by virtue of his indirect interest in the interest of KACALP in
such limited partnerships and by his ownership of shares in KAMIC.



                                       5


c. The following transactions in the Common Units beneficially owned by the
Reporting Persons were effected in the last 60 days:




                      Common Stock      Stock
  Date       Type      # of shares      Price     Where/how transaction effected
--------     ----     ------------      ------    ------------------------------
                                      
02/25/05       buy        575,000       38.08     open market



d.  Not applicable

e.  Not applicable

ITEM 6. CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH RESPECT TO
SECURITIES OF THE ISSUER.

ITEM 7. MATERIAL TO BE FILED AS EXHIBITS.

None.

                                    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.


                 March 14, 2005                      
-----------------------------------------------------
                      Date

             /S/ Richard A. Kayne                    
-----------------------------------------------------
                Richard A. Kayne


KAYNE ANDERSON CAPITAL ADVISORS, L.P.

By:     Kayne Anderson Investment Management, Inc.


        By:  /S/ David J. Shladovsky                 
             ----------------------------------------
             David J. Shladovsky, Secretary



                                       6


               JOINT FILING AGREEMENT PURSUANT TO RULE 13d-1(f)(1)


This agreement is made pursuant to Rule 13d-1(f)(1) under the Securities
Exchange Act of 1934 (the "Act") by and between the parties listed below, each
referred to herein as a "Joint Filer." The Joint Filers agree that a statement
of beneficial ownership as required by Section 13(d) of the Act and the Rules
thereunder may be filed on each of their behalf on Schedule 13D or Schedule 13G,
as appropriate, and that said joint filing may thereafter be amended by further
joint filings. The Joint Filers state that they each satisfy the requirements
for making a joint filing under Rule 13d-1.



        /S/ Richard A. Kayne                          
        ----------------------------------------------
        Richard A. Kayne


        /S/ David J. Shladovsky                       
        ----------------------------------------------
        Kayne Anderson Capital Advisors, L.P., by
        David J. Shladovsky, Secretary of
        Kayne Anderson Investment Management, Inc.,
        general partner