What was found
ON T/O, NR 2 AND NR 3 GENERATOR UNPARALLELED LIGHTS ILLUMINATED. VOLTS AND FREQS NORMAL, UNABLE TO PARALLEL, ABORTED TAKEOFF AT 80 KNTS. REMOVED AND REPLACED NR 1 GENERATOR CONTROL PANEL. ALSO, ADJUSTED VOLTAGE NR 2, 3, 4 ENGINES, OPS CHECKS OK AT VARIOUS POWER SETTINGS AND LOADS IAW MM 24-5-7.