What was found
ON TAKEOFF ROLL AT APPROX 50 KNOTS, GEN NR2 FAILED. ABORTED TAKEOFF. INTEROGATED GPCU, SHOWS RT GENERATOR, UNDER FREQ TRIP, IDG /PMG / WIRING, GCU FAILED CODE 9E. REMOVED AND REPLACED ENG.2 GCU(2XU) AND ENG NR 1 GCU IAW MM 24-22-12-04. RAN ENG PER JRH CHP.6 OPS VERIFED NORMAL, ACCOMPLISHED BITE TEST GPCU NO FAUL NOTICE PER A-310 M/M 24-41-11-04 ACFT OK FOR SERVICE.