As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6483 - IAD-EWR - AIRCRAFT RETURNED TO GATE DUE TO RT DUCT OVERTEMP WARNING LIGHT ILLUMINATED. MAINTENANCE INSPECTED AND OPENED DMI 52575, MEL 21-1. MAINTENANCE CLOSED DMI 52575 ON 11-09-97 BY PERFORMING OPS CHECK AND COULD NOT DUPLICATE PROBLEM. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)