As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AT FL350 RECEIVED PACK 1 AND 2 ECAM MESSAGE. INITIATED RAPID DESCENT, DECLARED PAN PAN AND DIVERTED.CABIN O2 MASKS DID NOT DEPLOY. RESOLUTION REPLACED PAC #1 COMPRESSOR OUTLET TEMP SENSOR IAW A321 AMM TASK 21-61-11-000-001-A AND TASK 21-61-11-400-001-A.OPS CHKS SERVICEABLE. (TC# 20190729007)