Initial Statement of Beneficial Ownership (3)

Exhibit 24

                                 AUTHORIZATION

      The undersigned hereby appoints Steven M. Post and Allen E. Danzig each
individually his authorized representative to execute and file with the
Securities and Exchange Commission, in the name and on behalf of the
undersigned, any and all of the following documents pursuant to Section 16(a) of
the Securities Exchange Act of 1934, as amended, and the Rules promulgated
thereunder that relate to the securities of L-3 Communications Holdings, Inc.:
(i) Initial Statement of Beneficial Ownership on Form 3, (ii) Statement of
Changes in Beneficial Ownership on Form 4 and (iii) Annual Statement of Changes
in Beneficial Ownership on Form 5.  This Authorization shall take effect as of
the date hereof and shall remain in full force and effect until the earlier of
the tenth anniversary hereof or the revocation of this Authorization by the
undersigned.


            Date: June 3, 2015





                                        By:   /s/ Mark Von Schwarz
                                              --------------------
                                              Mark Von Schwarz