As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENGINE COMPRESSOR STALL IN CRUISE. ENGINE RECOVERED AND CONTINUED OPERATING. *S/D* CHECKS WERE ACCOMPLISHED PER 767-200 MM 7. NO FAULTS COULD BE FOUND. ENGINE WAS REMOVED FOR REFURBISHMENT DUE TO LACK OF A POSITIVE FIX DURING TROUBLESHOOTING. THE ON ENGINE HAS NOT HAD ANY PROBLEMS WITH COMPRESSOR STALLS SINCE INSTALLATION.