As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAKEOFF ROLL, MASTER CAUTION LIGHT, ELEC 6 PACK LIGHT AND THE NR 2 DRIVE CAME ON FOR ABOUT ONE SECOND AND THEN ALL THREE LIGHTS WENT OUT. CONTINUED TAKE OFF AND FLIGHT WITH NO FURTHER PROBLEMS. ACFT GROUNDED. REPLACED NR 2 ENGINE IDG IAW AMM 24-11-11-400-801, LEAK & OPS CK GOOD.