What was found
ON TAKEOFF RW 29, NR 4 ENGINE ERRONEOUS EPR INDICATION, ALL OTHER INDICATIONS NORMAL. COMPRESSOR STALL AT APPROX 60 KTS, ABORTED TAKEOFF. TAXIED TO RW 11, TAKEOFF NORMAL, SET NR 4 ENGINE POWER BY N1, WIND 110, 4 KTS. INSPECTED NR 4 ENGINE BLADES PER PW MM 72-0, NO DEFECTS NOTED. CLEANED AND LUBRICATED NR 4 ENGINE PRBC PER MD MM 75-30-3. PERFORMED ENGINE RUN UP AND COULD NOT REPEAT STALLS. NR 4 ENGINE EPR INDICATION DEFERRED AS PER MEL 77-1, TRANSFERRED TO DMI 8943.