As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING SCHEDULED INSP MECHANIC NOTICED EXHAUST STAINING AROUND THE AFT SIDE OF THE V-BAND CLAMP AT THE OTBD SIDE OF THE TURBOCHARGER TRANSITION OF THE LT ENGINE. REMOVAL OF THE CLAMP REVEALED A 2.25 INCH CRACK IN THE RADIUS OF THE STACK FLANGE ALONG THE AFT SIDE. NO EVIDENCE OF ANY DAMAGE TO ACFT OR ENGINE COMPONENTS RESULTING FROM CRACK.