What was found
ON CLIMBOUT OF BOM AC WOULD NOT PRESSURIZE. COCKPIT IND SHOW NR 1 FWD OUTFLOW VLV OPEN. AC RELEASED PER MEL 21-47 OUTFLOW VLV FWD NR 1 DE-ACTIVATED IN THE CLOSE POS PER MXP 21-47B.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ON CLIMBOUT OF BOM AC WOULD NOT PRESSURIZE. COCKPIT IND SHOW NR 1 FWD OUTFLOW VLV OPEN. AC RELEASED PER MEL 21-47 OUTFLOW VLV FWD NR 1 DE-ACTIVATED IN THE CLOSE POS PER MXP 21-47B.