What was found
ELEC GEN OFF L EICAS ADVISORY LEFT GENERATOR CONTROL BREAKER (GCB) OPEN OR GENERATOR CONTROL S WITCH OFF AND ENGINE NOT SHUT DOWN. FIM TASK REF : FIM TASK REFERENCE NOT FOUND CMC MSG# 2431631 FLIGHT STATUS: I INTERMITTENCE CODE: M PH: CRUISE NARRATIVE: GENERATOR CONTROL UNIT (L) CMC MSG# 2431561 FLIGHT STATUS: L INTERMITTENCE CODE: M PH: CRUISE NARRATIVE: GENERATOR CONTROL UNIT (L) REF LOG PG 4219738 FOR MAINTENCE CORECTIVE ACTION ADD FAULT:24-31551FOUND LEFT IDG REQD OIL SERVICED, SERVICED LT IDG, NO LEAKS EVIDENT. RAN LT ENG IDG ON LINE AND ALL PARAMETERS NORMAL.