What was found
WHILE AT CRUISE FL340 WITH MANUAL THROTTLES DUE TO ATS SYSTEM MEL'D WHEN ADJUSTING POWER NOTICED #1 ENGINE WAS SLOWLY INCREASING POWER WHILE PULLING #1 THROTTLE BACK. EPR POINTER REDUCE BUT ALL ENGINE SETTINGS WERE INCREASING.WHILE TROUGLESHOOTING ENGINE TEMPORARILY EXCEEDED N1 APPROX 108% ,EGT 650 DEGREES, N2 112% ,TIME OF EXCEEDENCES NO MORE THAN 20 SECONDS WHEN STARTED A DESCEND AND ENGINE RESPONSE RECOVERED. OBTAINED FADEC 1 OVHT,FADEC CHANNEL A&B FAULT ON LANDING SHGN 04JUN20 10:39 MEM U PERFORMED BITE TEST PER TSM 73-21-40 ON THE #1 FADEC SYS. AND GRD FAULT CODES NOTED WERE 350-18, 350-29. DURING LAST FLIGHT LEG FAULT CODES 352-23, 350-18 ,350-16, 350-15 WERE NOTED . OPNED THE LEFT FAN COWL AND INSPECTED AREA AROUND THE EEC FOR A PNEUMATIC LEAK. NONE NOTED R&R'D ENG