MODIFIED USING JET AVIATION MODIFICATION NO. 33-39-02-1, CAPT. AND F/O ANNUNCIATOR COUPLER MODIFICATION, DATED 04/12/01, REFERENCE FAA FORM 8110-3, DA IED 05/29/2001 BY SYSTEMS AND EQUIPMENT DER NO. DERT-510087-NM. THE NEW EQUIPMENT AND ASSOCIATED SYSTEMS WERE FUNCTIONALLY TESTED PER UNIVERSAL AVIONIC