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                                                                    EXHIBIT 24.2

                            DIRECTORS AND OFFICERS OF
                                 TRANSDIGM INC.
                                POWER OF ATTORNEY

The undersigned directors and officers of TransDigm Holding Company, hereby
constitute and appoint Gregory Rufus, with full power of substitution and
resubstitution, as attorney-in-fact for each of the undersigned, and in the
name, place and stead of each of the undersigned, to execute on behalf of each
of the undersigned an Annual Report on Form 10-K for the fiscal year ended
September 30, 2000 pursuant to Section 13 of the Securities and Exchange Act of
1934 and to execute any and all amendments to such report and to file the same,
with all exhibits thereto and other documents required to be filed in connection
therewith, granting to such attorney full power to act with or without the
others, and to have full power and authority to do and perform, in the name and
on behalf of each of the undersigned, every act whatsoever necessary, advisable
or appropriate to be done in the premises, hereby ratifying and approving the
act of said attorney and any such substitute.

This Power of Attorney may be executed in multiple counterparts, each of which
shall be deemed an original with respect to the person executing it.



                                          EXECUTED as of December 28, 2000.
                                                           

              /s/Douglas W.  Peacock                                               /s/ William Hopkins
- -------------------------------------------------             ------------------------------------------------------------
                Douglas W.  Peacock                                            William Hopkins, Director
            Chairman of the Board and
         Chief Executive Officer
         (Principal Executive Officer)

              /s/W.  Nicholas Howley                                               /s/ Muzzafar Mirza
- -------------------------------------------------             ------------------------------------------------------------
                W.  Nicholas Howley                                             Muzzafar Mirza, Director
      President and Chief Operating Officer
           (Principal Operating Officer)




                 /s/Stephen Berger                                                 /s/John W.  Paxton
- -------------------------------------------------             ------------------------------------------------------------
             Stephen Berger, Director                                          John W.  Paxton, Director




              /s/Thomas R.  Wall, IV
- -------------------------------------------------
           Thomas R.  Wall, IV, Director