As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TURBO REMOVED AND INSPECTED. FOUND SHAFT BROKEN BETWEEN TURBINE AND COMPRESSOR BLADES. TURBINE BLADES WERE NOT FOUND ON THE SHAFT THAT TURBINE BLADES WERE ON. TURBINE BLADES WERE EXHAUSTED OUT THE AIRCRAFT THROUGH TAILPIPE. COMPRESSOR WHEELS HAD SIGNS OF BROKEN AND CRACKED BLADES TO THE UNBALANCED TURBO. ALL LINES WERE CHECKED AND NO OBSTRUCTIONS OF ANY KIND FOUND. TURBO HAD OIL IN THE BEARING AND CAM AREAS. TURBO INSTALLED 6-29-98.