As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PRESSURE REG 1 & 2 FAULT IN CLIMB OUT. AFTER RESET, FAILED AGAIN. AFT OUTFLOW VLV REMAINED FULL OPEN, WOULD NOT CLOSE, IN MANUAL. INSPECTED E & E, COURIER AREA & MAIN CARGO DECK. FOUND WATER IN ALL THREE AREAS. INSPECTED E & E COMPARTMENT NO WATER FOUND IAW MM 05-50-01-0. OPERATIONAL CHECK OF CABIN PRESS CONTROL SYS FOUND THAT THE AFT OUTFLOW VLV NOT WORKING IN AUTO MODE & SLOW IN MANUAL MODE. REMOVED & AFT OUTFLOW VLV IAW MM 21-31-12-04. OPERATIONS CHECK & TEST IAW 21-31-00-05. ALL TEST PASSED. ACFT OK FOR SERVICE. PART REMOVED PN 88005B0306 & SN 786.