What was found
(CAN) BLEED 1 FAIL CAS, BLEED 2 FAIL CAS MESSAGE ANNUNCIATED DESCENDING THROUGH 10,000. CABIN DEPRESSURIZED. NOTED RED X THROUGH BOTH PRSOVS. VCS FAIL RED X THROUGH VCS ON ECS PANE. AMS CONTROLLER PN ON/OFF SYLZ-53632-203, SN OFF: 0177, SN ON: 0120 REPLACED. EMS TEMP CONTROLLER, PN OFF/ON130070-6, SN OFF: 00206, SN ON: 158 REPLACED.