What was found
ENGINE INDICATIONS DO NOT MATCH OBSERVED ENGINE PERFORMANCE WHEN OPERATING AT T/O POWER AND CRUISE, NR1 EPR IS BELOW EXPECTED. AIRCRAFT TAIL SWAP WITH 833. T/S NR 1 ENGINE AND FOUND NO LEAKS, PROBLEM SEEMS TO BE ON NR 2 ENGINE PT2 AND PT7 LINES, CHECKED OKAY, BLEW OUT PT2 PORT FOR OBSTRUCTION, NONE FOUND. NR 2 ENGINE READING LOW DUE TO A BROKEN PT2 FLEX LINE ON THE EPR TRANSMITTER, REMOVED AND REPLACED EPR TRANSMITTER. OPS CHECK AND ENGINE RUN-UP NORMAL. (K)