As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENG IDG LIGHT COMING OFF AND ON. VERIFIED NR 1 ENGINE DRIVE LIGHT INTERMITTENT RAN NR 1 ENGINE WITH GOOD FREQ'S AND VOLTS. INSPECTED NR 1 ENG IDG PLUG DP1206 FOUND RESISTANCE READING 193.6 OHMS BETWEEN PINS 5 AND 6 REF WD 24 11 11 AND FIM 24 11 00 810 801. REPLACED NR 1 IDG REF MM 24 11 11 OPS & LEAK CK GOOD.