As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING MAINTENANCE THE FLUORESCENT PENETRANT INSPECTION OF THE HPC SPOOL STAGE 4-9 REVEALED SEVERAL RADIAL CRACK INDICATIONS AT THE INTERSTAGE SEAL TEETH. ACCORDING TO THE ENGINE SHOP MANUAL THE HPC SPOOL IS NOT REPAIRABLE AND WILL BE SCRAPPED.