As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB BETWEEN FL180 & FL230 RT ENG BEGAN SURGING 1.66 - 1.69 EPR. ALL ENG PARAMETERS FOLLOWED ACFT DUCT PRESS SPLIT 35R 50L. WHEN DUCT PRESS EVENED SURGE STOPPED FLUCTUATION 1.66 & 1.69 EPR. PERFORMED POWER PLANT INSP IAW MM 71-00-00-206-007-R00. NO DEFECTS NOTED AT THIS TIME.