As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AME NOTICED CRACK IN RT ARMPIT AREA OF OUTER COMBUSTION LINER DURING DAILY INSPECTION, PRIOR TO NEXT DAY`S FLYING. CRACK IS 2.0" LONG, RUNNING HORIZONTALLY INTO WIRE MESH PATCH AREA. CONFIRMED ON ENGINE RUN UP, BLOWING AIR. ENGINE PERFORMANCE CHECKS HAD BEEN DETERIORATING WITH LITTLE OR NO IMPROVEMENT WITH PERFORMANCE RECOVERY WASHES. COMBUSTION CASE REPLACED AND PERFORMANCE FIGURES RETURNED TO NORMAL.