As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS SIGNIFICANT SYSTEM: ON POWER UP FOR TAKE OFF ENG MASTER CAUTION ILLUMINATED. BOTH ALT EEC'S ILLUMINATED. LOW SPEED ABORT PERFORMED. PERFORMED BITE CHECK, FIM 73-05 TASK 811 & TEST NR 13 ON NUMBER 1 EEC & NUMBER 2 EEC PER AMM 71-00-00 NO DEFECTS NOTED.