As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TURBINE 'CAN' PN 6870992 WAS FOUND CRACKED TWO TIMES IN APPROXIMATELY 100 HOURS. VIBRATION ANALYSIS SHOWED HIGH VIBRATION LEVELS, .8IPS AT 48,000 RPM (N-1 SPEED) ON THE COMPRESSOR. REPLACED COMPRESSOR AND HAVE HAD NO MORE CRACKING. NOTE: TURBINE VIBRATION LEVEL NORMAL. REPLACED COMPRESSOR FOR REPAIR.