As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT A/C GEN TRIPPED ON TAKEOFF ROLL, RTO AT 20 KNOTS. EICAS MSG T/R UNIT DISPLAYED. T/S IAW FIM, NTF. SYS CHKS IAW FIM 24-32-00 PAGE BLOCK 101 FIG 103 SYSTEM TEST OK. ENG CARRIED OUT NO FAULTS FOUND, REMOVED AND REPLACED LT GCU. RAN LT ENG OP NORMAL. PERFORMED BITE ON BPCU. NO FAULTS. ETOPS CATEGORY (E): PROBLEMS WITH SYSTEMS CRITICAL TO ETOPS.