As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT FL 360 CREW FELT AN IMMEDIATE INCREASE IN EAR PRESS & NOTICED CAB ALT AT 8800 FT & CLIMBING, CAB RATE WAS ALL DASHES. AFTER INITIATING EMER DECENT PRESSURIZATION STABILIZED ACFT CONTINUED TO 10,000 FEET AS A PRECAUTION & PRESSURIZATION RESPONDED NORMALLY THROUGH REST OF FLIGHT. CAPTAIN FOUND STICKY FLUID ON ELECTRO OUTFLOW VLV. R & R ELECTRO OUTFLOW VLV IAW AMM 21-31-03. OPERATIONS CHECKED GOOD IAW AMM 21-31-00.