What was found
JFK - AFTER TAKEOFF NR 1 GENERATOR TRIPPED OFF, UPPER YAW DAMPER LIGHT CAME ON ABOUT SAME TIME WITH SPLIT RUDDER INDICATION, SSB OPENED AND NR 3 AND NR 4 BTB'S OPENED. RETURNED TO JFK LANDING NORMAL. REMOVED WATER FROM LOWER CARGO AREA. REMOVED AND REPLACED NR 2 BPCU PER MM 24-22-02. NR 1 GCU PER MM 24-23-01, AND RESEATED UPPER YAW DAMPER COMPUTER PER MM 22-16-00 ALL AREAS OPS CHECKED GOOD. WATER APPEARED TO HAVE COME FROM PALLETS IN POSITIONS NR 1 AND 2. (M)