What was found
AIRCRAFT SUFFERED LOSS OF PRESSURIZATION TWICE. BLEED 2 FAIL CAUTION IN FLIGHT OCCURRED TWICE. BOTH AT FL220. RAN QRH FOR BOTH OCCURRENCES. CAUTIONS AND ADVISORIES PRESENT USING EVENT WERE: ICE CONDITION, PACK 1 OFF, BLEED 2 FAIL. (FLIGHT 5746 - FILED OPEN)THIS IS CURRENTLY A WORK IN PROGRESS