As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6316 - RIC-IAD - AIRCRAFT RETURNED TO GATE DUE TO LEFT DUCT FAIL WARNING LIGHT ILLUMINATED. MAINTENANCE INSPECTED AND OPENED DMI 52573, MEL 21-1. MAINTENANCE CLOSED DMI 52573 ON 10-29-97 BY REMOVING AND REPLACING LEFT GAMA DUCT O-RINGS. OPS CHECK OK. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)