As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
B-18705 NO.4 ENG OCCURRED N2 VIB AND SURGE DURING CLIMBING.C/A:1.BORESCOPE INSP. GAS PATH PER AMM 72-00-00 P206 FOUND DAMAGE STARTING AT STAGE 4. FOUND A VARIABLE VANE BROKEN AND TURNED INTO THE AIR STREAM, HALH OF THE VANE STARTING AT THE TIP MISSING. ALL STAGE 5 BLADES BENT AND TORN AT THE LEADING EDGE.2.REPLACE NO.4 ENGINE AND ENG RUN UP TEST NORMAL.