As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) TWO OVERHAULED CYLINDERS DISPLAYED MULTIPLE CRACKS ON AFT TRUNNION BEARING AREA. ALSO DISPLAYED A BURN MARK, WITH REWORK FLAT SPOT FORMED ON CYLINDER SURFACE. THE CHROME PLATE AND BAKE PROCESS WERE DELAYED 38.5 HOURS AND BOEING MAX BETWEEN PROCESSES IS 12 HOURS. TOTAL BAKE TIME SHOWN WAS 11 HOURS AND BOEING PROCESS CALLS FOR 12 HOURS BAKE. REMOVED FROM SERVICE.