As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF FROM ATL-MCN, THE RIGHT ENGINE DUCT LEAK LIGHT ILLUMINATED. FOLLOWED POH PROCEDURES AND SHUTDOWN RIGHT ENGINE. FLIGHT RETURNED TO ATL WHERE LANDING WAS MADE SAFELY AND WITHOUT INCIDENT. REMOVED AND REPLACED WATER SEPARATOR AND PRESSURE REGULATOR. ALSO, REPAIRED BLEED LINE IN RIGHT LEADING EDGE. OPERATIONAL AND LEAK CHECK GOOD. PRESSURE REGULATOR P/N 38E96-6A. (Z)