As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING APPROACH OF FLIGHT 6253 TO BOS CREW REPORTED A COMPRESSOR STALL AND ITT INDICATION RISE ON THE LEFT HAND ENGINE. THE LEFT HAND ENGINE WAS SHUT DOWN AS A PRECAUTION AND FLIGHT LANDED UNEVENTFULLY. SEVERAL BLEED OVER VALVES WERE REPLACED AND A SATISFACTORY OPERATIONAL CHECK WAS PERFORMED. AIRCRAFT WAS RETURNED TO SERVICE.