What was found
FLIGHT 25, BDA-PHL - THE CREW REPORTED PROBLEMS WITH THE NUMBER 1 GENERATOR AND HAD TO DISCONNECT THE IDG. ALSO, WHILE EN ROUTE, ATTEMPTED TO START THE APU GENERATOR TWO TIMES UNSUCCESSFULLY. THE AC RETURNED TO THE FIELD IN BDA AND LANDED WITHOUT FURTHER PROBLEMS. MAINTENANCE FOUND METAL IN IDG, REMOVED AND REPLACED. REMOVED AND REPLACED NR 1 IDG OIL COOLER, NR 1 GCU AND NR1 EGIU AS PRECAUTIONARY FOR IDG CHANGE.