What was found
WHILE PERFORMING ENGINE FAULT CODES, INTERROGATION TASKCARD FOUND FAULT CODE ON NR 2 ENGINE. 73-21272, ALTERNATOR VOLTAGE IS OUT OF RANGE TO THE EEC. THIS IS A SHORT TERM CODE 73-21272. ACFT GROUNDED. ACCOMPLISHED FIM 73-27, TASK 804. RESISTANCE IS HIGH FOR A PHASE WINDINGS. REMOVED EEC ALTERNATOR AND ALTERNATOR ROTOR REF AMM 73-21-08-000-801-F00. INSTALLED EEC ALTERNATOR AND ALTERNATOR ROTOR REF AMM 73-21-08-400-801-F00. DRIVE PAD LEAK CK GOOD. PERFORMED IDLE POWER LEAK CHECK REF AMM 71-00-00-700-801-F00 AND ENGINE RUN EEC BITE CHECK REF AMM 71-00-00-700-808-F00. BOTH OPS CK GOOD. ACCOMPLISHED TEST 3A IDLE POWER LEAK CK IAW AMM 71-00-00-700-801-F00. NO LEAKS NOTED.