What was found
NR 3 EPR GAUGE FAILED TO COME UP WHEN POWER APPLIED. (TOGW 144900, IAS 20 KTS, OAT -16 C, 500 FT PA, AND BRAKE ENERGY ZONE NORMAL). TRANSFERRED TO DMI LOG 15488 MEL REF 77-1-1. PLACARDS INSTALLED. REF. DMI 15488 - NR 3 EPR GAUGE FAILED TO COME UP WHEN POWER APPLIED. TROUBLESHOT NR 3 ENGINE PER B-727 M/M 77-11-0. LEAK CHECK OF PT2/7 LINES OK. EVACUATED PT 2/7 LINES WITH NITROGEN. EVACUATED NOSE DOME. RANG WIRES & GROUNDS INDICATOR TO TRANSMITTER, CHECKED GOOD. RECOMMEND REPLACE CONNECTOR AT TRANSMITTER. DMI 15488 REMAINS. REF. DMI 15488 - NR 3 EPR GAUGE FAILED TO COME UP WHEN POWER APPLIED. REMOVED AND REPLACED CONNECTOR D840 AT NR 3 EPR TRANSMITTER PER B-727 W/D 77-13-01. RAN ENGINE AND OPS CHECKED GOO