As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#637, JFK-STI. (AIRCRAFT PERFORMED AN AIR TURN-BACK TO JFK AND AN EMERGENCY WAS DECLARED) "ENG 2 STALL DURING CLIMB ENG AUTO RELIGHT AND RESUMMED FULL POWER (NO IFSD); REF LOG PAGE 4310981 (INSTALLED BORO PLUG PORT C IAW AMM 72-00-00) BOROSCOPE FINDINGS FOUND DAMAGE TP HPC 5 AND WAS REPLACED WITH NEW ENGINE REF WO 1386738.