SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549

                                  SCHEDULE 13G

                    Under the Securities Exchange Act of 1934
                               (Amendment No. 9)*

                                    PHI INC.
                                (Name of Issuer)

               NON-VOTING COMMON STOCK, $0.10 PAR VALUE PER SHARE
                         (Title of Class of Securities)

                                   69336T 20 5
                                 (CUSIP Number)

                                DECEMBER 31, 2005
             (Date of Event Which Requires Filing of this Statement)

     Check the appropriate box to designate the rule pursuant to which this
Schedule is filed:

          [ ]  Rule 13d-1(b)

          [X]  Rule 13d-1(c)

          [ ]  Rule 13d-1(d)

*    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).



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CUSIP No. 69336T 20 5                  13G                     Page 2 of 6 Pages
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1    Names of Reporting Persons/I.R.S. Identification Nos. of Above Persons
     (entities only)
     WOODBOURNE PARTNERS, L.P.
--------------------------------------------------------------------------------
2    Check the Appropriate Box if a Member of a Group (See Instructions) (a) [ ]
                                                                         (b) [ ]
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3    SEC Use Only
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4    Citizenship or Place of Organization
     MISSOURI
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               5   Sole Voting Power
                   -0-
  Number of    -----------------------------------------------------------------
   Shares      6   Shared Voting Power
Beneficially       -0-
  Owned by     -----------------------------------------------------------------
    Each       7   Sole Dispositive Power
  Reporting        -0-
 Person With   -----------------------------------------------------------------
               8   Shared Dispositive Power
                   -0-
--------------------------------------------------------------------------------
9    Aggregate Amount Beneficially Owned by Each Reporting Person
     500,000
--------------------------------------------------------------------------------
10   Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See
     Instructions)                                                           [ ]
--------------------------------------------------------------------------------
11   Percent of Class Represented by Amount in Row (9)
     6.6%
--------------------------------------------------------------------------------
12   Type of Reporting Person (See Instructions)
     PN
--------------------------------------------------------------------------------



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CUSIP No. 69336T 20 5                  13G                     Page 3 of 6 Pages
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     Names of Reporting Persons/I.R.S. Identification Nos. of Above Persons
     (entities only)
     CLAYTON MANAGEMENT COMPANY
--------------------------------------------------------------------------------
2    Check the Appropriate Box if a Member of a Group (See Instructions) (a) [ ]
                                                                         (b) [ ]
--------------------------------------------------------------------------------
3    SEC Use Only
--------------------------------------------------------------------------------
4    Citizenship or Place of Organization
     MISSOURI
--------------------------------------------------------------------------------
               5   Sole Voting Power
                   500,000
  Number of    -----------------------------------------------------------------
   Shares      6   Shared Voting Power
Beneficially       -0-
  Owned by     -----------------------------------------------------------------
    Each       7   Sole Dispositive Power
  Reporting        500,000
 Person With   -----------------------------------------------------------------
               8   Shared Dispositive Power
                   -0-
--------------------------------------------------------------------------------
9    Aggregate Amount Beneficially Owned by Each Reporting Person
     500,000
--------------------------------------------------------------------------------
10   Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See
     Instructions)                                                           [ ]
--------------------------------------------------------------------------------
11   Percent of Class Represented by Amount in Row (9)
     6.6%
--------------------------------------------------------------------------------
12   Type of Reporting Person (See Instructions)
     CO
--------------------------------------------------------------------------------



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CUSIP No. 69336T 20 5                  13G                     Page 4 of 6 Pages
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1    Names of Reporting Persons/I.R.S. Identification Nos. of Above Persons
     (entities only)
     JOHN D. WEIL
--------------------------------------------------------------------------------
2    Check the Appropriate Box if a Member of a Group (See Instructions) (a) [ ]
                                                                         (b) [ ]
--------------------------------------------------------------------------------
3    SEC Use Only
--------------------------------------------------------------------------------
4    Citizenship or Place of Organization
     MISSOURI
--------------------------------------------------------------------------------
               5   Sole Voting Power
                   500,000
  Number of    -----------------------------------------------------------------
   Shares      6   Shared Voting Power
Beneficially       700
  Owned by     -----------------------------------------------------------------
    Each       7   Sole Dispositive Power
  Reporting        500,000
 Person With   -----------------------------------------------------------------
               8   Shared Dispositive Power
                   700
--------------------------------------------------------------------------------
9    Aggregate Amount Beneficially Owned by Each Reporting Person
     500,700
--------------------------------------------------------------------------------
10   Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See
     Instructions)                                                           [ ]
--------------------------------------------------------------------------------
11   Percent of Class Represented by Amount in Row (9)
     6.6%
--------------------------------------------------------------------------------
12   Type of Reporting Person (See Instructions)
     IN
--------------------------------------------------------------------------------



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CUSIP No. 69336T 20 5                  13G                     Page 5 of 6 Pages
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                         AMENDMENT NO. 9 TO SCHEDULE 13G

     The Reporting Person reported the acquisition of shares of Non-Voting
Common Stock, par value $.10 per share ("Stock"), of PHI Inc., a Delaware
corporation ("Issuer"), 113 Borman Drive, P.O. Box 23502, Lafayette, LA 70508,
in an initial filing of this Schedule 13G on April 16, 1998. In this regard,
Item 4 is hereby (as heretofore amended) amended as follows. All other items are
unchanged from the initial filing, as amended.

ITEM 4. OWNERSHIP.



                                                                                        CLAYTON                 WEIL
                                                                                   (general partner      (sole director and
                                                                      WOODBOURNE    of Woodbourne)    shareholder of Clayton)
                                                                      ----------   ----------------   -----------------------
                                                                                             
(a)  Amount beneficially owned:                                        500,000          500,000               500,700
(b)  Percent of Class:                                                     6.6%             6.6%                  6.6%
(c)  Number of Shares as to which the person has:
     (i)   Sole power to vote or direct the vote:                          -0-          500,000               500,000
     (ii)  Shared power to vote or direct the vote:                        -0-              -0-                   700
     (iii) Sole power to dispose or to direct the disposition of:          -0-          500,000               500,000
     (iv)  Shared power to dispose or to direct the disposition of:        -0-              -0-                   700


Notes:

1. Since the class of stock to which this filing relates is "non-voting," the
voting rights reflected in (c)(i) above would become exercisable only when and
if permitted under the issuer's articles of incorporation or as required under
Louisiana law.

2. The shares reflected under Mr. Weil's name in (c)(ii) and in (c)(iv) above
are held individually by Mr. Weil's wife. Although Mr. Weil may be deemed to
have constructive beneficial ownership of such shares under applicable
securities regulations, Mr. Weil disclaims any beneficial interest in such
shares.

3. Percentages based on 7,568,892 shares outstanding as reflected on the
company's most recent 10-Q report.



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CUSIP No. 69336T 20 5                  13G                     Page 6 of 6 Pages
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ITEM 10. CERTIFICATION.

     By signing below I certify that, to the best of my knowledge and belief,
the securities referred to above were not acquired and are not held for the
purpose of or with the effect of changing or influencing the control of the
issuer of the securities and were not acquired and are not held in connection
with or as a participant in any transaction having that purpose or effect.

Dated: February 10, 2006                WOODBOURNE PARTNERS, L.P.,

                                        by its General Partner, CLAYTON
                                        MANAGEMENT COMPANY


                                        /s/ John D. Weil
                                        ----------------------------------------
                                        John D. Weil, President


Dated: February 10, 2006                CLAYTON MANAGEMENT COMPANY


                                        /s/ John D. Weil
                                        ----------------------------------------
                                        John D. Weil, President


Dated: February 10, 2006                /s/ John D. Weil
                                        ----------------------------------------
                                        John D. Weil

                            EXHIBIT A TO SCHEDULE 13G

                     AGREEMENT PURSUANT TO RULE 13D-1(K)(1)

     The undersigned persons, on February 10, 2006, agree and consent to the
joint filing on their behalf of this Amendment to Schedule 13G in connection
with their beneficial ownership of the Stock of PHI Inc.

                                        WOODBOURNE PARTNERS, L.P.,

                                        by its General Partner, CLAYTON
                                        MANAGEMENT COMPANY


                                        /s/ John D. Weil
                                        ----------------------------------------
                                        John D. Weil, President


                                        CLAYTON MANAGEMENT COMPANY


                                        /s/ John D. Weil
                                        ----------------------------------------
                                        John D. Weil, President


                                        /s/ John D. Weil
                                        ----------------------------------------
                                        John D. Weil