As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6517 - ORF-IAD - DURING POST FLT INSPECTION, IT WAS NOTED THAT THE RT ACM EXHAUST DUCT WAS MISSING. ACM DUCT HAD APPARENTLY DEPARTED AIRCRAFT AFTER TAKEOFF. AIRCRAFT LANDED AT IAD WITH NO PROBLEM. THE MAINTENANCE TECHNICIANS INSPECTED THE AREA AND REPLACED THE RIGHT ACM DUCT IAW WITH ALL MAINTENANCE PROCEDURES. AIRCRAFT WAS THEN RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)