As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A DAILY INSPECTION AT THE LAST FLIGHT OF THE DAY, THE MECHANIC NOTED THE ENGINE EXHAUST STACK WAS CRACKED. THE CRACK ORIGINATED AT THE CENTER WELDED SEAM APPROXIMATELY 2 INCHES FROM THE FLANGE ON THE FORWARD SIDE OF THE STACK. THE CRACK CONTINUED DOWNWARD AND CONTINUED APPROXIMATELY 4 INCHES ALONG THE WELDED SEAM OF THE FLANGE. REPLACED THE EXHAUST STACK, PN 206-064-300-005, IAW BELL 206L-4 MM.