As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ORD - FLT NR 4031 - AFTER BOTH ENGINES WERE RUNNING THE ELECTRICAL SMOKE INDICATOR ILLUMINATED. THE CREW SHUT DOWN THE ENGINES AND PASSENGERS DEPLANED NORMALLY. MAINTENANCE FOUND A LEAK AT INNER COMPRESSOR CASE DRAIN. RAI'D NR 1 ENGINE DUE TO INTERNAL LEAK. PERFORMED GROUND PERFORMANCE RUN. OPS CHECKED GOOD AIRCRAFT RETURNED TO SERVICE. (M)