As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RTFL DUE TO NR 2 ENGINE COMPRESSOR STALLS. [SUP 05-18-07] BOROSCOPE NR 2 ENG SERIAL NR 727193, FOUND SEVERE DAMAGES ON COMPRESSOR STAGES 16 & 17 THROUGH AP8. FOUND RT ENGINE BLADE 1 & 2 GOUGES IN LEFT EDGES. BLADES 1 AND 2 OK. REPLACEMENT OF NR 2 ENG NR 4 BEARING SCAVENGE VALVE. ENGINE RUN - ALL PARAMETERS WITHIN NORMAL RANGE. REPLACED NR 2 ENGINE.