As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW CREW HEARD A SMALL BANG FROM THE RIGHT HAND ENGINE. AS A PRECATION CREW SHUTDOWN NUMBER TWO ENGINE. SINGLE ENGINE TIME 37 MINUTES. EMERGENCY DECLARED LANDED DFW WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED BLEED VALVE CONTROL UNIT. SYSTEM GROUND CHECK NORMAL OPERATION. (CLOSED)