What was found
UPON APPLICATION OF T/O THRUST (FULL), NR 1 ENGINE WOULD NOT MAKE FULL EPR OF 2.14 ONLY 2.05. ALL OTHER PARAMETERS IN YELLOW ARC + POWER LEVER AT FORWARD STOP. ENGINES 2 + 3 POWER LEVERS APPROX 1 1/2 KNOBS BEHIND NR 1 POWER LEVER. (TEMP 31DEG C) ADJUSTED NR 1 ENG THRUST CONTROL SYSTEM. RAN ENGINES AND OBSERVED PARAMETERS. THROTTLES ALIGNED WITH TAKEOFF PWR. BUT EPR READING LOW AT NR 1 ENG. TAKEOFF POWER AVAILABLE BY MEANS OF 99.9% N1 TACH. INDICATION VERIFICATION. WHILE TROUBLESHOOTING NR 1 ENGINE FOUND EPR READING LOW BY .05. NR 1 ENG EPR IND INOP INSP SYSTEM. TIGHTENED CONNECTIONS ON HARD LINE NEAR GANG DRAIN. TIGHTENED LOOSE PLUG ON EPR TRANSDUCER PERFORMED ENG OPS. TARGETS REACHED.