As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BLEED 2 SURGING 5 - 75 PSI. CABIN ALTITUDE RATE +600 TO -800 FPM. STOPPED CLIMB AT FL-210. BLEED SURGE CONTINUED THROUGHOUT FINAL APPROACH. THE AIRCRAFT WAS GROUNDED. REPLACED RIGHT ENGINE BLEED PRESSURE VALVE IAW AMM 36-11-03. LEAK CHECK AND ENGINE RUN CHECKED GOOD.