What was found
ON TAKEOFF ROLL NR 3 EPR GAUGE SLOW TO RESPOND TO ADVANCING THROTTLE, NEVER MADE IT TO TAKEOFF EPR. NR 3 EGT IN YELLOW, NR 3, N1 TOUCH BOTTOM OF REDLINE, REJECTED T/O AT 80 KTS. PRESSURE CHECKED EXHAUST SENSE LINE- CHECKED OK. CHECKED TEE FITTING AT TRANSMITTER FOR EXHAUST PORT AND FOUND TEE FITTING CRACKED. REPLACED FITTING REF IPC 77-10-00-08. REINSTALLED ALL LINES AND SECURED. PREFORMED TAKEOFF EPR TEST ON NR 3 ENGINE. ALLPARAMETERS NORMAL PER 727 JRH.