Document:

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                                                                  Exhibit 10.42

                                   AMENDMENT
                                       TO
                              EMPLOYMENT AGREEMENT

         This Amendment to Employment Agreement (the "Amendment") is entered
into as of December 27, 1999, between Kellstrom Industries, Inc., a Delaware
corporation (the "Company"), and Zivi R. Nedivi, an individual (the "Employee").

                                    RECITALS

         The Company and the Employee are parties to that certain Employment
Agreement entered into as of March 30, 1999 (the "Employment Agreement"),
pursuant to which the Employee is employed as President and Chief Executive
Officer of the Company. The Company and the Employee desire to amend the
Employment Agreement on the terms and conditions set forth in this Amendment.

                               TERMS OF AGREEMENT

         In consideration of the above recitals and the mutual promises herein
contained, the Company and the Employee hereby agree as follows:

         1. Effective as of January 1, 2000, Section 3(c)(ii) of the Employment
Agreement is amended in its entirety by deleting such section and substituting
the following:

                  "(ii) ANNUAL COMPANY BONUS. For each calendar year commencing
         with the year ending December 31, 2000, at the end of which year the
         Employee is employed by the Company:

                           (A) If the Net Income (as hereinafter defined) of the
         Company for such year is an amount equal to the Company's target net
         income as determined in the sole discretion of the Board (or the
         Executive Committee) for such year (the "Target"), the Employee shall
         be entitled to a bonus in an amount equal to the Salary of the Employee
         as of December 31 of such year (the "Target Bonus"). For purposes of
         this Agreement, "Net Income" shall mean actual net income, as
         determined by the Company in its sole discretion in accordance with
         GAAP.

                           (B) If the Net Income of the Company for such year is
         more than the Target and less than 125% of the Target, the Employee
         shall be entitled to a bonus as calculated below:

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                  B    =    Target Bonus + [Target Bonus x 2 x (NI - T)]
                                                          ------------
                                                                T
                  where:

                  B = the bonus earned in such year.

                  T = the Target for such year.

                  NI = the Net Income of the Company for such year.

                           (C) If the Net Income of the Company for such year is
         equal to or greater than 125% of the Target, the Employee shall be
         entitled to a bonus in an amount equal to 150% of the Target Bonus.

                           (D) If the Net Income of the Company for such year is
         greater than 75% of the Target but less than the Target, the Employee
         shall be entitled to a bonus as calculated below:

                  B    =    Target Bonus - [Target Bonus x 4 x (T - NI)]
                                                          ------------
                                                                T
                  where:

                  B = the bonus earned in such year.

                  T = the Target for such year.

                  NI = the Net Income of the Company for such year.

                           (E) If the Net Income of the Company for such year is
         equal to or less than 75% of the Target, the Employee shall not be
         entitled to a bonus."

         2. Except as expressly amended hereby, all of the terms and conditions
of the Employment Agreement shall continue in full force and effect.

         3. This Amendment shall be governed by and construed in accordance with
the laws of the State of Florida. This Amendment may be executed in any number
of counterparts, each of which shall be an original but all of which taken
together shall constitute one and the same instrument.

                         [SIGNATURES ON FOLLOWING PAGE]

                                       2
<PAGE>   3

         IN WITNESS WHEREOF, the parties have caused this Amendment to be duly
executed and delivered as of the day and year first above written.

                                     KELLSTROM INDUSTRIES, INC.

                                     By: /s/ W. Penny
                                         ---------------------------------------
                                         Name:  W. Penny
                                         Title: VP HR

                                     EMPLOYEE

                                     /s/ Zivi R. Nedivi
                                     -------------------------------------------
                                     Zivi R. Nedivi

                                       3<PAGE>   1
                                                                  Exhibit 10.43

                                   AMENDMENT
                                       TO
                              EMPLOYMENT AGREEMENT

         This Amendment to Employment Agreement (the "Amendment") is entered
into as of December 27, 1999, between Kellstrom Industries, Inc., a Delaware
corporation (the "Company"), and John S. Gleason, an individual (the
"Employee").

                                    RECITALS

         The Company and the Employee are parties to that certain Employment
Agreement entered into as of May 18, 1995, as amended (the "Employment
Agreement"), pursuant to which the Employee is employed as an Executive Vice
President of the Company. The Company and the Employee desire to amend the
Employment Agreement on the terms and conditions set forth in this Amendment.

                               TERMS OF AGREEMENT

         In consideration of the above recitals and the mutual promises herein
contained, the Company and the Employee hereby agree as follows:

         1. Section 1 of the Employment Agreement is hereby amended by adding
the following additional definitions:

                  The Company Target shall mean, with respect to any period,
         the target net income of the Company for such period as determined in
         the sole discretion of the Board (or the "Executive Committee").

                  The Division shall mean the Kellcad division of the Company,
         as determined by the Board in its sole discretion.

                  The Division Target shall mean, with respect to any period,
         the target net income of the Division, before taxes and corporate
         overhead allocations, for such period as determined in the sole
         discretion of the Board (or the "Executive Committee").

                  Divisional Net Income shall mean, with respect to any
         period, the actual net income, before taxes and corporate overhead
         allocations, of the Division for such period as determined by the
         Company in its sole discretion.

                  Net Income shall mean, with respect to any period, actual
         net income for such period as determined by the Company in its sole
         discretion in accordance with GAAP.

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         2. Section 3(a) of the Employment Agreement is hereby amended to
reflect that the Employee is employed as an Executive Vice President of the
Company.

         3. Effective as of January 1, 2000, Section 3(b)(ii) of the Employment
Agreement is amended in its entirety by deleting such section and substituting
the following:

                  "(ii) ANNUAL BONUS. For each calendar year during the
         Employment Period commencing with the year ending December 31, 2000, at
         the end of which year the Employee is employed by the Company, the
         Company shall be eligible to be paid a bonus, a portion of which shall
         be computed based upon the Company's Net Income as compared to the
         Company Target for such year (the "Company Bonus"), and a portion of
         which shall be computed based upon Divisional Net Income as compared to
         the Division Target for such year (the "Division Bonus"). The bonus
         payable, if any, with respect to any calendar year shall be the sum of
         the Company Bonus and the Division Bonus payable for such year.

                           (A) COMPANY BONUS. The Company Bonus, if any, payable
         on account of any calendar year shall be computed as follows:

                                    (i) if the Net Income of the Company for
         such year is an amount equal to the Company Target for such year, the
         Employee shall be entitled to a Company Bonus in the amount of $45,000.

                                    (ii) if the Net Income of the Company for
         such year is more than the Company Target and less than 125% of the
         Company Target, the Employee shall be entitled to a Company Bonus as
         calculated below:

                           CB   =   $45,000 + [$45,000 x 2 x (NI - CT)]
                                                         -------------
                                                               CT
                           where:

                           CB   =   the Company Bonus earned in such year.

                           CT   =   the Company Target for such year.

                           NI   =   the Net Income of the Company for such year.

                                    (iii) If the Net Income of the Company for
         such year is equal to or greater than 125% of the Company Target, the
         Employee shall be entitled to a Company Bonus in the amount of $67,500.

                                    (iv) If the Net Income of the Company for
         such year is greater than 75% of the Company Target but less than the
         Company Target, the Employee shall be entitled to a Company Bonus as
         calculated below:

                                       2
<PAGE>   3

                  CB     =       $45,000 - [$45,000 x 4 x (CT - NI)]
                                                      -------------
                                                           CT
                  where:

                  CB     =       the Company Bonus earned in such year.

                  CT     =       the Company Target for such year.

                  NI     =       the Net Income of the Company for such year.

                                    (v) If the Net Income of the Company for
         such year is equal to or less than 75% of the Company Target, the
         Employee shall not be entitled to a Company Bonus.

                  (B) DIVISION BONUS. The Division Bonus, if any, payable on
         account of any calendar year shall be computed as follows:

                                    (i) if the Divisional Net Income for such
         year is an amount equal to the Division Target for such year, the
         Employee shall be entitled to a Division Bonus in the amount of
         $45,000.

                                    (ii) if the Divisional Net Income for such
         year is more than the Division Target and less than 125% of the
         Division Target, the Employee shall be entitled to a Division Bonus as
         calculated below:

                  DB     =       $45,000 + [$45,000 x 2 x (NI - DT)]
                                                      -------------
                                                            DT
                  where:

                  DB     =       the Division Bonus earned in such year.

                  DT     =       the Division Target for such year.

                  NI     =       Divisional Net Income for such year.

                                    (iii) If the Divisional Net Income for such
         year is equal to or greater than 125% of the Division Target, the
         Employee shall be entitled to a Division Bonus in the amount of
         $67,500.

                                    (iv) If the Divisional Net Income for such
         year is greater than 75% of the Division Target but less than the
         Division Target, the Employee shall be entitled to a Division Bonus as
         calculated below:

                                       3
<PAGE>   4

                  DB     =       $45,000 - [$45,000 x 4 x (DT - NI)]
                                                      -------------
                                                            DT
                  where:

                  DB     =       the Division Bonus earned in such year.

                  DT     =       the Division Target for such year.

                  NI     =       Divisional Net Income for such year.

                                    (v) If the Divisional Net Income for such
         year is equal to or less than 75% of the Division Target, the Employee
         shall not be entitled to a Division Bonus."

         4. Except as expressly amended hereby, all of the terms and conditions
of the Employment Agreement shall continue in full force and effect.

         5. This Amendment shall be governed by and construed in accordance with
the laws of the State of Florida. This Amendment may be executed in any number
of counterparts, each of which shall be an original but all of which taken
together shall constitute one and the same instrument.

         IN WITNESS WHEREOF, the parties have caused this Amendment to be duly
executed and delivered as of the day and year first above written.

                                        KELLSTROM INDUSTRIES, INC.

                                        By: /s/ W. Penny
                                            ------------------------------------
                                            Name:  W. Penny
                                            Title: VP HR

                                        EMPLOYEE

                                        /s/ John S. Gleason
                                        ----------------------------------------
                                        John S. Gleason

                                       4

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