What was found
FLT#354, DUB-BOS. (ETOPS) AC GEN ON ECAM WHITE MESSAGE ( CLASS II MX MSG - GPCU OR AC GEN ); NO FAULTS PRESENT AT THIS TIME. T/S PER TSM 24-21-51: CKD. OIL SERVICING ON IDG #2 DUE TO "LOW OIL LEVEL" OIL LEVEL SENSOR" INDICATIONS ON 6/21/24 AND 6/24/24. ALL KS. OK, NO MSG. RE-OCCURRENCE. ITEM CLEARED, MX-4 UPDATED, PLACARD REMOVED.