What was found
DURING CLIMB OPERATION, OIL PSI WENT TO -4, N1=0, N2=0, ENGINE SHUTDOWN. AC RETURNED TO DEPARTURE WHERE IT LANDED WITHOUT INCIDENT. TROUBLESHOT SYSTEM AND FOUND EEC TO BE AT FAULT. REMOVED AND REPLACED EEC, OPS AND LEAK CHECKS GOOD. NO OTHER DEFECTS NOTED. AC WAS RETURNED TO SERVICE. (K)