As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 0696-PRESS/DIV- TO ELP DUE TO LOSS OF PRESSURIZATION. DECENT FROM 39000' TO 10000'. CORRECTIVE ACTION: REPLACED PRESSURIZATION CONTROL SELECTOR AND #2 AUTOMATIC PRESSURE CONTROLLER. BITE TEST OKAY, NO FAULTS. PRESSURIZED MANUALLY FOR 5 MIN AND PRESSURE HOLDING GOOD REF B757 AMM 21-31.