As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: AFTER SETTING CLIMB POWER #2 ENGINE EPR, FF, N, N2 SURGED FOR APPROXIMATELY 2.3 MINS THEN STABILIZED EPR +- 10%, #1 ENGINE FULLY STABLE. MAINTENANCE REPLACED THE #2 ENGINE PRESSURE REGULATING VALVE AND ACCOMPLISHED A SATISFACTORY LEAK / OPERATIONAL CHECK PER TSM 71- 00-00 810-833-A.