As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DISASSEMBLY INSPECTION OF HPC MODULE REVEALED O-RINGS, P/N AS3209-011, TO BE MISSING FROM THE 9TH STAGE VARI-VANE TRUNNIONS (ALL VANES). THIS CONDITION WAS AN ORIGINAL MANUFACTURING ERROR. MANUFACTURING ADVISED OF CONDITION. NOTE: THE ABOVE CONDITION HAD NO BEARING ON ENGINE REMOVAL CAUSE.