What was found
BLEED 3 OVERHEAT/PRV EICAS MESSAGE. CHECKED CMC, NO CORRELATED MESSAGE, NON CORRELATED MESSAGE WAS 36313 ASCTU FAIL OR BLEED-3 ELECTRICAL FAIL. FOLLOWED FIM 36-11 TASK 990. REMOVED AND REPLACED ASCTU, M7951, THEN BLEED SYSTEM ELEC GROUND TEST PASSED, PER AMM 36-11-30/401. ERASED MESSAGE, NO EXISTING FAULT FOUND. PERFORMED NR 3 ENGINE RUN, NO RELATED MESSAGES FOUND, PER AMM 71-00-00/501. ALSO CHECKED WIRING FOR ANY SHORTS. REPLACED FAMV 773855-8, SN OFF 910136.