As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT OVER PRESSURIZING ON CLIMB OUT. REMOVED AND REPLACED DIGITAL CONTROLLER AND ELECTROPNEUMATIC OUTFLOW VALVE. OPS CHECK FAIL IN AUTO MODE. MANUAL MODE OPS CHECK SAT. DIGITAL CONTROLLER - PN: 92185A010200 SN 00125 TOTAL TIME: 3043.10 TOTAL CYCLES: 2734 TIME SINCE INSTALL: 2334.51