As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT ENGINE VIBRATES AND SOUNDS SIMILAR TO COMPRESSOR STALL. ALL OTHER INDICATIONS NORMAL. AFTER INSPECTION OF RIGHT ENGINE AND GROUND RUNS IN SEVERAL DIFFERENT POWER SETTINGS, NO DEFECTS NOTED. SWAPPED ANTI-ICING BLEED VALVE FOR TROUBLESHOOTING GROUND RUNS AND CHECKS. FOUND NO DEFECTS. (X)