As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
P AND W SB 1508, REQUIRES ALL ENGINES TO BE COMPLETELY DISASSEMBLED TO CONDUCT A CORROSION INSPECTION EVERY 7 YEARS. SERIOUS CORROSION PITTING FOUND WHEN CONVERTING MILITARY T73-P-1 OR T73-P-700 ENGINES TO COML. USE. DISK FAILURE CAN OCCUR IF CORROSION INSPECTION NOT C/W. EXAMPLE SUBMITTED.