As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOUD VIBRATION ON AIRFRAME AT 1000 FT ON FINAL RIGHT ENGINE INDICATIONS DEGRADED SAMC. ENG 2 S/N 724181, EHM PAGE WRITER MESSAGES FLT 964-05 APR SHOW ENG 2 BOTH CHANNELS DETECTED SURGE, REF AMM-FIM 71-05-00 PG 116 SURGE TROUBLE SHOOTING FOR RING CASE ENGINES. WILL REQUIRE BORESCOPE HPC & HPT. ACCOMPLISHED IPCV INSPECTION, FOUND CHECK VALVE BROKEN & DUCTS DAMAGED.