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                                                                   EXHIBIT 10.13

                             SECOND ADDENDUM TO THE
                    AMENDED AND RESTATED SEVERANCE AGREEMENT

This Second Addendum to the Amended and Restated Severance Agreement (this
"Addendum") is made and entered into effective as of this 21st day of December,
2001, by and between Aviall, Inc., a Delaware corporation (the "Company") and
Bruce Langsen (the "Executive"). Terms used in this Addendum with initial
capital letters that are defined in the Amended and Restated Severance
Agreement, originally entered into on March 12, 1998 and amended and restated as
of April 16, 1999, between the Company and the Executive (the "Severance
Agreement") are used in this Addendum as so defined.

WHEREAS, Section 13 of the Severance Agreement permits the parties to amend the
Severance Agreement by executing a writing signed and dated by both parties;

WHEREAS, the Severance Agreement provides for certain severances benefits in the
event of a termination of the Executive's employment following a Change of
Control of the Company; and

WHEREAS, the parties desire to amend the definition of "Change of Control" in
the Severance Agreement.

NOW, THEREFORE, for good and valuable consideration, the Company and the
Executive agree as follows:

1.       Subsection 1(d) of the Severance Agreement is amended by adding the
following to the subsection:

         Notwithstanding any provision to the contrary herein, following
         Stockholder Approval, a "Change of Control" shall not be deemed to have
         occurred for purposes of this Agreement if (i) Carlyle, alone or
         together with its affiliates (as such term is defined for purposes of
         Rule 12b-2 of the General Rules and Regulations of the Exchange Act,
         "Affiliates") and associates (as such term is defined for purposes of
         Rule 12b-2 of the General Rules and Regulations of the Exchange Act,
         ("Associates"), becomes the beneficial owner of 20% or more of the
         Common Stock then outstanding (either through the acquisition of the
         Investor Shares or the exercise or conversion of the Bridge Preferred
         Stock, the Permanent Preferred Stock or the Carlyle Shares), or (ii) a
         person becomes the beneficial owner of any Investor Shares, provided,
         however, that if such person, together with all Affiliates and
         Associates of such person, shall become after acquiring the Investor
         Shares, or is at the time of the acquisition of any Investor Shares,
         the beneficial owner of 5% or more of the Common Stock then outstanding
         (in addition to any Investor Shares held by such person or any
         Affiliate or Associate of such person) then a "change of control" shall
         be deemed to have occurred upon the later of (A)

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         the date such person's acquisition of the Investors Shares or (B) the
         date such person became the beneficial owner of 5% or more of the
         Common Stock. Notwithstanding any provision to the contrary herein,
         prior to Stockholder Approval, for the purpose of this Agreement,
         Carlyle shall not be deemed to be the beneficial owner of (i) any
         shares of Permanent Preferred Stock, (ii) any shares of Common Stock
         issuable upon conversion of the Permanent Preferred Stock or (iii) any
         Carlyle Shares. For purposes of this Section 1(d), the following
         definitions shall apply:

                  (i) "Bridge Preferred Stock" shall mean the Series B Senior
         Convertible Participating Preferred Stock, par value $0.01 per share,
         of the Company.

                  (ii) "Carlyle" shall mean collectively, Carlyle Partners III,
         L.P., a Delaware limited partnership, CP III Coinvestment, a Delaware
         limited partnership, together with their Affiliates and Associates.

                  (iii) "Carlyle Securities Purchase Agreement" shall mean that
         certain Securities Purchase Agreement, dated as of December 17, 2001,
         by and among the Company and Carlyle.

                  (iv) "Carlyle Shares" shall mean any Common Stock issuable to
         Carlyle pursuant to the Note Purchase Agreement and any Common Stock
         issuable upon exercise of warrants issuable to Carlyle pursuant to the
         Note Purchase Agreement.

                  (v) "Common Stock" shall mean the shares of common stock, par
         value $0.01 per share, of the Company.

                  (vi) "Investor Shares" shall mean the shares of (A) the
         Permanent Preferred Stock, (B) the Bridge Preferred Stock, (C) the
         Carlyle Shares, (D) the Common Stock issuable on conversion of the
         Permanent Preferred Stock or the Bridge Preferred Stock and (E) any
         shares issued as dividends or on conversion or exchange or otherwise in
         respect of the securities referred to in the foregoing clauses (A)
         through (D).

                  (vii) "Note Purchase Agreement" shall mean that certain
         Securities Purchase Agreement, dated as of December 17, 2001, by and
         among the Company, Aviall Services, Inc., J.H. Whitney Mezzanine Fund,
         L.P., Whitney Private Debt Fund, L.P., Blackstone Mezzanine Partners,
         L.P., Blackstone Mezzanine Holdings, L.P., Carlyle High Yield Partners,
         L.P. and Oak Hill Securities Fund, L.P. and among other entities.

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                  (viii) "Permanent Preferred Stock" shall mean the Series D
         Senior Convertible Participating Preferred Stock, par value $0.01 per
         share, of the Company.

                  (ix) "Stockholder Approval" shall mean the affirmative vote of
         a majority of the Common Stock of the Company represented in person or
         by proxy at a meeting of the Company's stockholders in favor of
         approval of the issuance of the Permanent Preferred Stock issuable upon
         conversion of the Bridge Preferred Stock and the issuance of Common
         Stock of the Company issuable upon conversion of the Permanent
         Preferred Stock.

2.       The Severance Agreement, as modified by this Addendum, remains in full
force and effect.

                           [Signature Page to Follow]

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         IN WITNESS WHEREOF, the Company and the Executive have executed or
caused to be executed, this Addendum effective as of the day and year first
written above.

                                     AVIALL, INC.

                                     By:        /s/ Jeffrey J. Murphy
                                              ----------------------------------
                                     Name:    Jeffrey J. Murphy

                                     Dated:   December 20, 2001

                                     EXECUTIVE

                                     By:        /s/ Bruce Langsen
                                              ----------------------------------
                                     Name:    Bruce Langsen

                                     Date:    December 19, 2001

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                                                                   EXHIBIT 10.15

                              AMENDMENT NUMBER ONE
                    TO THE AVIALL, INC. AMENDED AND RESTATED
                               SEVERANCE PAY PLAN

         THIS AMENDMENT TO THE AVIALL, INC. AMENDED AND RESTATED SEVERANCE PAY
PLAN (this "Amendment"), dated as of December 21, 2001 is made and entered into
by Aviall, Inc., a Delaware corporation (the "Company"). Terms used in this
Amendment with initial capital letters that are not otherwise defined herein
shall have the meanings ascribed to such terms in the Aviall, Inc. Amended and
Restated Severance Pay Plan (the "Plan").

                                    RECITALS

WHEREAS, Section 10 of the Plan provides that the Board of Directors of the
Company (the "Board") may amend the Plan at any time; and

WHEREAS, the Board desires to amend the definition of Change of Control set
forth in Section 3.3 of the Plan;

NOW, THEREFORE, in accordance with Section 10 of the Plan, the Company hereby
amends the Plan as follows:

1.       Section 3.3 of the Plan is hereby amended effective December 21, 2001
by adding the following to the end of said Section:

         Notwithstanding any provision to the contrary herein, following
         Stockholder Approval, a "Change of Control" shall not be deemed to have
         occurred for purposes of this Plan if (i) Carlyle, alone or together
         with its affiliates (as such term is defined for purposes of Rule 12b-2
         of the General Rules and Regulations of the Exchange Act, "Affiliates")
         and associates (as such term is defined for purposes of Rule 12b-2 of
         the General Rules and Regulations of the Exchange Act, ("Associates"),
         becomes the beneficial owner of 20% or more of the Common Stock then
         outstanding (either through the acquisition of the Investor Shares or
         the exercise or conversion of the Bridge Preferred Stock, the Permanent
         Preferred Stock or the Carlyle Shares), or (ii) a person becomes the
         beneficial owner of any Investor Shares, provided, however, that if
         such person, together with all Affiliates and Associates of such
         person, shall become after acquiring the Investor Shares, or is at the
         time of the acquisition of any Investor Shares, the beneficial owner of
         5% or more of the Common Stock then outstanding (in addition to any
         Investor Shares held by such person or any Affiliate or Associate of
         such person) then a "change of control" shall be deemed to have
         occurred on the date such person becomes the beneficial owner of 20% or
         more of the Common Stock then outstanding. Notwithstanding any
         provision to the contrary herein, prior to Stockholder Approval, for
         the purpose of this Agreement, Carlyle shall not be deemed to be the
         beneficial owner of (i) any shares of Permanent Preferred Stock, (ii)
         any shares of Common Stock issuable upon conversion of the Permanent
         Preferred Stock or (iii) any Carlyle Shares. For purposes of this
         Section 12, the following definitions shall apply:

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                  (i) "Bridge Preferred Stock" shall mean the Series B Senior
         Convertible Participating Preferred Stock, par value $0.01 per share,
         of the Company.

                  (ii) "Carlyle" shall mean collectively, Carlyle Partners III,
         L.P., a Delaware limited partnership, CP III Coinvestment, a Delaware
         limited partnership, together with their Affiliates and Associates.

                  (iii) "Carlyle Securities Purchase Agreement" shall mean that
         certain Securities Purchase Agreement, dated as of December 17, 2001,
         by and among the Company and Carlyle.

                  (iv) "Carlyle Shares" shall mean any Common Stock issuable to
         Carlyle pursuant to the Note Purchase Agreement and any Common Stock
         issuable upon exercise of warrants issuable to Carlyle pursuant to the
         Note Purchase Agreement

                  (v) "Common Stock" shall mean the shares of common stock, par
         value $0.01 per share, of the Company.

                  (vi) "Investor Shares" shall mean the shares of (A) the
         Permanent Preferred Stock, (B) the Bridge Preferred Stock, (C) the
         Carlyle Shares, (D) the Common Stock issuable on conversion of the
         Permanent Preferred Stock or the Bridge Preferred Stock and (E) any
         shares issued as dividends or on conversion or exchange or otherwise in
         respect of the securities referred to in the foregoing clauses (A)
         through (D).

                  (vii) "Note Purchase Agreement" shall mean that certain
         Securities Purchase Agreement, dated as of December 17, 2001, by and
         among the Company, Aviall Services, Inc., J.H. Whitney Mezzanine Fund,
         L.P., Whitney Private Debt Fund, L.P., Blackstone Mezzanine Partners,
         L.P., Blackstone Mezzanine Holdings, L.P., Carlyle High Yield Partners,
         L.P. and Oak Hill Securities Fund, L.P. and among other entities.

                  (viii) "Permanent Preferred Stock" shall mean the Series D
         Senior Convertible Participating Preferred Stock, par value $0.01 per
         share, of the Company.

                  (ix) "Stockholder Approval" shall mean the affirmative vote of
         a majority of the Common Stock of the Company represented in person or
         by proxy at a meeting of the Company's stockholders in favor of
         approval of the issuance of the Permanent Preferred Stock issuable upon
         conversion of the Bridge Preferred Stock and the issuance of Common
         Stock of the Company issuable upon conversion of the Permanent
         Preferred Stock.

2.       Except as expressly amended by this Amendment, the Plan shall continue
in full force and effect in accordance with the provisions thereof.

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IN WITNESS WHEREOF, the Company has caused this Amendment to be duly executed as
of the date first written above.

                             AVIALL, INC.

                             By:     /s/ Jeffrey J. Murphy
                                     ---------------------------------------
                             Title:  Senior Vice President and General Counsel

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