As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAD/PVD - FLT 6215 - DURING CRUISE AT 1244 HOURS ON 7-29-97, MADE AN UNSCHEDULED LANDING DUE TO RIGHT DUCT FAIL LIGHT ILLUMINATED. AIRCRAFT RETURNED TO THE GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND REMOVED AND REPLACED BLEED DUCT O-RINGS, OPS CHECK OK. AIRCRAFT RELEASED AND APPROVED FOR RETURN TO SERVICE. (X)